• PL28874B1 - A method of transmitting and receiving television broadcasts, and an apparatus for applying the method. : en pl
  • PL28884B1 - : en pl
  • US2170811A - Method of forming cold-worked articles : en
  • AU108541B2 - Improvements in or relating to method of facing walls, building blocks and parts thereof : en
  • US2171265A - Aircraft trim indicator : en
  • US2171380A - Safety device for automatic burners : en
  • PL28729B1 - A method of obtaining hard tar by distilling coal tar and other fluids using hot flue gases. : en pl
  • PL28935B1 - : en pl
  • CH206870A - Packaging means. : de en
  • US2171078A - Breakable stem for fire hydrants : en
  • CH206728A - Process for the production of a new vat dye. : de en
  • CA383708A - Locomotive smoke-box : en fr
  • DE680361C - Metal vapor or noble gas rectifiers : de en
  • SU55421A1 - The method of producing anilyl 3-oxythiovaphthene-2-aldehydes and their vinylene homologues : en ru
  • US2170859A - Method of repairing rail ends : en
  • US2170888A - Powered cross feed for lathes : en
  • USD116377S - Design fob a crane bridge or similar : en
  • PL28721B1 - An automatic device for the vehicle that signals stations and stops inside the vehicle. : en pl
  • US2171095A - Extrusion apparatus for obtaining luster, color, pattern, and complicated shape effects on articles formed of plastic material : en
  • PL28798B1 - : en pl
  • DE680370C - Process for the production of gas-tight objects from quartz material : de en
  • DE680432C - Fuse for motor vehicles : de en
  • AU440738A - Process forthe manufacture ofa dough admixture and baked foods using such dough admixture : en
  • CH206701A - Device for mincing meat. : de en
  • FR845614A - Anti-oxidants in rubber : en fr
  • US2171309A - Shipping container : en
  • US2171502A - Gas cell : en
  • PL28682B1 - A method of duplicating circulating tape recorders recorded with a needle. : en pl
  • GB512162A - Improvements in or relating to machines for cutting work blanks : en
  • SU55444A1 - Electromagnetic hammer : en ru
  • US2170822A - Tree band : en
  • US2171044A - Switch : en
  • AU108301B2 - Improvements in or relating particularly to interchangeable wheels for tractors orthe like : en
  • PL28792B1 - Archibald Shaw Maclaren, Auchendoune. Securing a nut or bolt against self-unscrewing. : en pl
  • BE435593A - : en
  • CH206637A - Process for introducing small quantities of substances into a liquid stream and device for starting the process. : en it
  • PL28622B1 - An auxiliary device for steering the vehicle by means of braking or variable speed driving on both sides of the vehicle with pedals, in particular in tracked vehicles. : en pl
  • CH206765A - Process for processing the used coal feed from aluminum electrolysis melting furnaces. : de en
  • DE680452C - Fire alarm device : de en
  • CH206881A - Method for applying BEZW. Removal of resilient wheel tires and means for carrying out this process. : de en
  • CH206854A - Device for checking the parking time of a vehicle. : de en
  • GB512067A - Improvements in or relating to edge protection and jointing strip for furniture and office, shop and other fittings : en
  • PL28654B1 - Calibration method for rolls for rolling mills for drawing or reducing full or empty sections of rolled materials. : en pl
  • GB511950A - Improvements in or relating to lubricating devices for rotary or other compressors : en
  • FR845566A - Friction device intended to ensure the stability of the rotors of high speed machines : en fr
  • AU108345B2 - Improvements inthe manufacture and production of liquid or solid hydrocarbons or liquid or solid oxygen-containing derivatives of hydrocarbons : en
  • GB512268A - Improvements in thermionic valves : en
  • PL28744B1 - : en pl
  • US2170901A - Buffing machine : en
  • CH206906A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • DE680454C - Process for the production of copper oxychloride : de en
  • FR845749A - Flexible Metal Trim Strip for Shoe Sole : en fr
  • GB512246A - Improvements in and relating to photographic flashlight apparatus : en
  • CH206784A - Machine for processing ship screws, propellers and the like. : de en
  • AU39539A - Improvements in or relating to furnaces fed with solid fuel by gravity froma hopper adjacent the grate : en
  • CA383654A - Rotable sleeve valve and manifold : en fr
  • FI18571A - Förfaringsäätt för att förbättra cirulationen och öka värmeutväxlingsförmågan i av rör bestående värmeutväxlingsanordningar och en dylik värmeutväxlingsanordning : en fi
  • FR845613A - Synchronization method for television : en fr
  • AU108537B2 - Water heater : en
  • CA383655A - Tooth brush : en fr
  • US2170897A - Coin classifier and slug detector : en
  • PL28877B1 - : en pl
  • US2171017A - Carton for wax records : en
  • GB512111A - Process for the clarification of fouled regenerating baths used in the manufacture of regenerated cellulose from viscose : en
  • GB512284A - Improvements in or relating to super-heterodyne receivers : en
  • GB512170A - Improvements in or relating to yarn changing mechanism for knitting machines : en
  • USD116381S - Design for an air conditioner : en
  • SU55533A1 - Beet harvesting machine : en ru
  • GB512365A - Improved automatic distributing and regulating device for compressed fluid brake installations for vehicles : en
  • DE680464C - Disc milling cutters, in particular for dental purposes : de en
  • US2171306A - Welding rod : en
  • USD116365S - Design for a lace : en
  • AU108325B2 - A method of and means for determining the form, and controlling the production, of geodesics : en
  • CA383625A - Film intermittent mechanism : en fr
  • PL28657B1 - : en pl
  • US2170955A - Sifter closure : en
  • PL28839B1 - A method for producing uniform discrete V-belts and an apparatus for carrying out the method. : en pl
  • US2171247A - Appliance for correcting bunions : en
  • DK56608C - Procedure for the manufacture of taverns of glass and other substances. : da en
  • US2170981A - Vehicle bumper : en
  • US2170862A - Car truck : en
  • US2171060A - Floor surfacing machine : en
  • US2171487A - Fire extinguisher : en
  • US2171512A - Electrical apparatus : en
  • FR845773A - Opacifier for enamels and its manufacturing process : en fr
  • DK56607C - Method and Machine for Placing a Liner in a Light Metal Engine Cylinder. : da en
  • US2170817A - Inking system for surface-decorating machines : en
  • US2171164A - Spark plug : en
  • GB512040A - Improvements in or relating to electron multipliers : en
  • DE680379C - Articulated lever hook lock for cans : de en
  • FR845781A - Transparent photograph on paper : en fr
  • GB511993A - Hydraulic presses : en
  • US2171268A - Ore reducing machine : en
  • AU466238A - An improved road grader front assembly : en
  • PL28605B1 - Josef Meiser, Dortmund. Coupler from loveks to the iron housing. : en pl
  • US2170849A - Vertical antenna : en
  • AU108309B2 - Improvements in or relating to fur hat bat making machines : en
  • AU108573B2 - Improvements in or relating to automatic hunting switch or like circuit arrangements for use for example in telephone systems : en
  • PL28717B1 - : en pl
  • PL28807B1 - Device for guiding the driving shaft in rolled tube mills. : en pl
  • US2171353A - Method for the utilization of waste heat : en
  • CA383698A - Thermionic oscillograph : en fr
  • BE435729A - : en
  • US2170857A - Recording apparatus and method : en
  • US2171439A - Process for the production of reguline beryllium and beryllium alloys : en
  • GB511963A - Improvements relating to epicyclic variable speed-gearing for use with dynamo electric machines : en
  • GB512097A - Improvements in the manufacture of rolling bearings : en
  • GB512155A - Improvements in or relating to electric arc converter arrangements : en
  • FR845612A - Plastics manufacturing process : en fr
  • FR845627A - Process for obtaining lubricants : en fr
  • GB512305A - An improved shelter against aerial warfare and the like : en
  • US2171369A - Hot water heater : en
  • USD116437S - Design for a dress : en
  • AU108286B2 - Improvements in or relating to electric discharge tubes : en
  • CA383703A - Dust engine regulating device : en fr
  • CH206895A - Sitting device. : de en
  • DE680550C - Dimmed electric lightbulbs, especially for vehicles : de en
  • DE680416C - Several separately lying cylinder locks with a common key, different in the setting of the pin tumblers : de en
  • DE680633C - Cutting and method of making a paper vessel : de en
  • GB512084A - Improvements in or relating to incandescent-cathode current-converting discharge tubes : en
  • GB512104A - Improvements in and relating to machines for grinding the edges of plates, such as lenses : en
  • FI18584A - Formwork system for the manufacture of roof tiles or similar tiles : en fi
  • GB512037A - Improvements in ticket issuing devices : en
  • GB512025A - Improvements in adjustable brackets : en
  • GB512013A - Improvements in or relating to regulators : en
  • FR845640A - Vehicle with fork-shaped central spar : en fr
  • GB512145A - The preparation of new therapeutically useful heterocyclic compounds : en
  • GB512232A - Improvements in or relating to gilled tubes : en
  • CA383666A - Closure cap : en fr
  • CH206900A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • US2171350A - Card holder : en
  • DE680413C - Centrifugal clutch, especially for motor vehicles : de en
  • GB512290A - Improvements in or relating to pencil pointers : en
  • US2171000A - Formation tester : en
  • AU446738A - An improved drill cultivator : en
  • DE680453C - Movement with gear regulator synchronized by a synchronous motor : de en
  • CH206742A - Locking device on typewriters, calculating machines and the like. To prevent a sheet of paper clamped in the machine from being inadvertently conveyed beyond a certain position. : de en
  • CH206824A - Small boxes, especially for mounting electrical lines under plaster. : de en
  • US2171069A - Truck and swing bolster construction : en
  • PL28767B1 - A self-winding method for ribbon iron and an apparatus for carrying out the method. : en pl
  • US2170844A - Hardening refractory metals : en
  • GB512297A - Improvements in machines for dressing cylindrical surfaces : en
  • FR845587A - Desizing agent : en fr
  • GB512185A - Improvements in or relating to processes for improving the stability to temperature change of sparking plug insulators : en
  • GB512337A - Improvements in and relating to electric unit-driven printing presses : en
  • BE435404A - : en fr
  • US2171220A - Sweater : en
  • US2170928A - Mining machine : en
  • US2170929A - Tamping plug : en
  • USD116412S - Design for a pencil tip : en
  • US2170794A - Remote control for transmissions : en
  • US2171080A - Induction heat transformer : en
  • USD116362S - Design for : en
  • US2171368A - Electric snap switch : en
  • FR845703A - Process for fixing dyes or tanning substances on the fiber : en fr
  • PL28676B1 - and its derivatives from adenosine. : en pl
  • AU537638A - Water heater : en
  • PL28667B1 - Pneumatic device for starting the automatic rapid-fire trigger mechanism. : en pl
  • DE680529C - Elastic fabric with twist cords : de en
  • FR845573A - Process for the preparation of a product intended to be added to a rusk dough : en fr
  • PL28631B1 - Telefunken Gesellschaft fur drahtlose Telegraphie m. B. H., Berlin. A transmitter for transmitting short pulses. : en pl
  • USRE21189E - Refrigerating apparatus : en
  • DE680367C - Selenium rectifier, especially for rectifying the smallest measuring currents : de en
  • GB512405A - Improvements in or relating to rotary presses for multi-colour printing : en
  • FR845571A - Device for the automatic activation and deactivation of a friction brake associated with an oil circulation brake : en fr
  • GB512216A - Improvements relating to the mounting of the valves on the cylinders of internal combustion engines : en
  • PL28723B1 - A method of producing glass fibers or similar melting masses, and an apparatus for carrying out the method. : en pl
  • FR845575A - Process for improving the electrical characteristics of solutions : en fr
  • DE680389C - Device for opening and closing sliding doors, especially for ovens : de en
  • US2171133A - Dual bathtub control : en
  • GB512371A - Process for the fractionation of mixtures of hydrocarbons or other liquids : en
  • US2170907A - Car coupler : en
  • US2170969A - Packer for solid refrigerants : en
  • GB512140A - Improvements in tickets or tags for marking textile materials : en
  • GB512240A - Apparatus for producing cut fibres from artificial silk filaments : en
  • US2171050A - Cutting device for fishermen : en
  • PL28756B1 - Vaouum Oil Company Joint Stock Company, Czechowice. A container for storing the evaporating liquids with a roof cover with a hydraulic seal. : en pl
  • PL28812B1 - A device for automatic over-threshold gain regulation, especially for radiogoniometric receivers. : en pl
  • GB512344A - Improvements in cartons or like containers for liquids, powders or the like : en
  • AU27739A - Improvements in airconditioning apparatus : en
  • PL28840B3 - Method for the preparation of disubstituted carbamic acid esters. : en pl
  • SU55529A1 - Rail joint pavement lining : en ru
  • US2171447A - Guide for flush tank valves : en
  • GB512098A - An impeller for centrifugal pumps especially aero-engine super-chargers : en
  • GB512172A - Improvements in fluid pressure hammers : en
  • US2170889A - Anchor : en
  • PL28793B1 - The method of producing casein fibers. : en pl
  • DE680435C - Device for igniting a gas or vapor discharge path located in an inductive circuit : de en
  • US2171214A - Secondary electron emitting screen tube : en
  • US2171417A - Crankshaft grinding tool : en
  • GB512130A - Improvements in and relating to pipe couplings : en
  • FR845800A - Improvements to mechanical energy transmission systems : en fr
  • US2171097A - Nailing plug : en
  • PL28675B1 - Dansk Crown-Cork Fabrik Ved Aage Weybye-Lassen, Copenhagen. Bottle cap. : en pl
  • PL28624B1 - Tatra-Werke, Automobil- und Waggonbau A. G., Prague-Smichov. Location of steering wheels in motor vehicles. : en pl
  • PL28912B1 - A method of electroplating rolled products and an apparatus for carrying out the method. : en pl
  • PL28724B1 - A method of joining the folding parts of the boxes and an apparatus for carrying out the method. : en pl
  • CH206823A - Plug contact device. : de en
  • FR845568A - Improvements to piston and cylinder type distributors : en fr
  • GB511980A - Improvements in and relating to safety razors : en
  • GB512272A - Improvements in side delivery rakes or swath turners : en
  • FR845585A - Variable section mouth for air intake in liquid fuel burners and similar applications : en fr
  • FR845723A - Device for mounting two aircraft propellers of the same axis with opposite directions of rotation, comprising an offset speed reducer : en fr
  • FR845726A - New selective and anti-scattering electric bulb for lamps and projectors : en fr
  • GB512139A - Improvements in or relating to absorption refrigerating systems : en
  • DE680523C - Buttonhole sewing machine : de en
  • PL28864B1 - : en pl
  • PL28888B1 - Continuous metal casting device. : en pl
  • PL28669B1 - : en pl
  • AU350138A - Improvements in or relating to machines for making glass-to-metal seals : en
  • AU108543B2 - Improvements in or relating to pattern grading machines : en
  • GB512296A - Improvements in vertical water tube boilers : en
  • DE680616C - Flat left-left knitting machine for the execution of the process for the production of breakthrough patterns achieved by stitching : de en
  • DE680604C - Method for the contact copying of lenticular lenticular films with cylindrical lens rastering onto lenticular lenticular films with cylindrical lens rasterization : de en
  • DK56602C - Switch for electric irons. : da en
  • USD116361S - Design for an alphabet for forming : en
  • FI18579A - Förfaringssätt for framställning av vätsketäta behållare såsom flaskor, kannor ochliklik av fiberhaltigt material såsom Papp, papper octylt ävensom enligt detta förfarande framställda behållare : en fi
  • GB512081A - Improvements in or relating to typewriting, teleprinting and like machines : en
  • GB512044A - Improvements in motor fuels : en
  • GB512055A - Improvements in or relating to resolving, calculating, or computing mechanism particularly for use in gun-fire control apparatus : en
  • GB512089A - Discharge fittings for taps or faucets : en
  • FR845596A - 3.6. dihalogen-xanthones, acid dyes derived from these xanthones and processes for the preparation of these various products : en fr
  • GB512133A - An improved railway for use in road-making : en
  • GB512166A - Improvements in or relating to the manufacture of tracing paper : en
  • FR845645A - Improvements made to devices for the instruction and training of personnel in charge of listening to aerophonics : en fr
  • GB511947A - Improvements in or relating to time-recording receivers for containers : en
  • CH206680A - Germ-proof closure for containers such as bottles, jugs, barrels or the like. : de en
  • CH206709A - Process for the production of mixed crystals from tantalum and niobium carbide. : de en
  • US2171077A - Tie case : en
  • DE680449C - Flash lamps, in particular for photographic purposes : de en
  • CA383635A - Water pump : en fr
  • CH206793A - Spring-loaded sealing ring. : de en
  • DK56618C - Gearshift mechanism, especially for Automobiles. : da en
  • US2171174A - Latch : en
  • US2171254A - Abrasive tool : en
  • US2170874A - Multicolored lens : en
  • US2171274A - Telehotographic objective : en
  • US2171172A - Wrapping machine : en
  • US2171248A - Vacuum cleaning apparatus : en
  • US2171438A - Method of manufacturing tire tread : en
  • US2171490A - Electric discharge device : en
  • US2171497A - Map and like article support : en
  • CH206644A - Method of applying plaster made of fiber and cement. : de en
  • CH206670A - Raffel. : de en
  • AU390738A - Improvements in pick-proof cylinder locks : en
  • AU431038A - Improvements in and relating to electrical communication systems involving automatic gain control apparatus : en
  • DE680400C - Circumferential brake for paper rolls in printing machines : de en
  • US2171334A - Electrical insulation : en
  • US2171467A - Safety control : en
  • CH206850A - Removable sled. : en fr
  • GB512336A - Improvements in and relating to glass polishing apparatus : en
  • DE680359C - Process to prevent sintering of magnetizable metal powder during annealing : de en
  • US2170979A - Optical system for searchlights : en
  • DE680479C - Cinema equipment, especially a camera for cine films : de en
  • BE435710A - : en
  • CA383648A - Door closer : en fr
  • PL28801B1 - A method for the treatment of waste liquors obtained in the production of cellulose. : en pl
  • US2171108A - Method of stabilizing silicon alloys : en
  • DE680608C - Device for shifting a high frequency voltage to another potential : de en
  • CH206754A - Straightening machine convertible to different straightening speeds. : de en
  • GB512396A - Improvements in or relating to strip coilers and particularly hot strip coilers : en
  • US2171391A - Process of producing hard materials : en
  • USD116334S - Design for a belt buckle : en
  • FR845738A - Process and products for washing textile materials and more especially those containing fibers of animal origin : en fr
  • GB512212A - Improvements in or relating to the manufacture of socketed steel pipes : en
  • AU108277B2 - Improvements in auxiliary electrodes in electric discharge devices : en
  • PL28835B1 - A method for the preparation of thiazoles unsubstituted at the 2-position. : en pl
  • US2171206A - Elliptic spring : en
  • US2171286A - Compressor regulator : en
  • CA383660A - Photographic material : en fr
  • CH206707A - Process and device for the storage and transport of liquefied gases with a low boiling point and for the generation of compressed gases from these liquefied gases. : de en
  • GB511971A - Improvements in or relating to the separation of minerals : en
  • US2171373A - Siphon valve stopper for bottles : en
  • USD116400S - Design for a dress ensemble : en
  • SU55570A1 - Adrenaline Purification Method : en ru
  • US2171429A - Gyratory crusher : en
  • USD116418S - Design fob : en
  • US2171145A - Luminescent material : en
  • US2171167A - Time recorder mechanism : en
  • US2171435A - Electric arc furnace : en
  • US2171452A - Seamless knitted stocking and method of producing same : en
  • USD116342S - Design fob a cuff link : en
  • FR845790A - Process for separating non-colloidal solids from colloidal liquids : en fr
  • US2170819A - Cathode ray tube recording device : en
  • US2171115A - Grinding device : en
  • US2171446A - Window cleaner's guard : en
  • DE680559C - Device for handling metallic objects : de en
  • US2170885A - Selective switch : en
  • US2171386A - Milk bottle filler attachment : en
  • DE680509C - Anode arrangement for gas or vapor-filled high-voltage rectifiers : de en
  • PL28647B3 - Klara Wever b. Seyd, Dusseldorf. Wire connector for belts. : en pl
  • DE680595C - Process for the preparation of crystallized citric acid : de en
  • FR845740A - Device for remotely activating machine guns and firing them electrically : en fr
  • FI18587A - Method of preparation of acid solution for preserving fresh feedingstuffs : en fi
  • FR845598A - Scavenging and feed compressor for internal combustion engines, and in particular for two-stroke diesel aircraft engines : en fr
  • GR8458B - APPARATUS AND METHOD TO COLD TWIST ABOUT ITS OWN IRON OR TO COLD DISTRIBUTE MANY SUCH. : el en
  • PL28781B1 - A method of softening artificial products, which are polymerized vinyl compounds. : en pl
  • USD116402S - Design for : en
  • USD116407S - Design for a dress : en
  • GB512043A - Improvements in loud speaker telephone installations : en
  • US2171146A - Hydraulic rotary engine : en
  • USRE21185E - Sepabating system and method : en
  • CA383668A - Motor fuel : en fr
  • PL28850B1 - Fabryka Zyrandoli Elektrycznych A. Marciniak S. A., Warsaw. Lamp holder for electric headlamps. : en pl
  • GB512094A - Improvements in or relating to mattresses : en
  • PL28902B1 - Stanislaw Wojciechowski, Joy. Il ^ Z-Cj Profiled millstones. : en pl
  • US2171182A - Disconnecting switch : en
  • US2171514A - Brake arrangement : en
  • CA383693A - Payroll machine : en fr
  • CH206776A - Process for foaming latex and apparatus for carrying out this process. : de en
  • US2171458A - Drive-lock means : en
  • GB512082A - Improvements in and relating to bagatelle and similar games : en
  • PL28728B1 - A method of visualizing the magnetic field and a test vessel for visualizing it in this way. Priority: June 17th: : en pl
  • PL28833B1 - Device for film reel advancing in cameras with automatic compensation of the feed rate according to the increase of the film reel diameter : en pl
  • PL28686B1 - : en pl
  • US2170974A - Two-stage supercharger : en
  • GB512322A - Insect-killing and insect-preventive preparation : en
  • DK56605C - Method of Preparing a Gonadotropic Pituitary Hormone Formulation Useful for Injection : da en
  • PL28764B1 - Enamel production method. : en pl
  • US2171155A - Method of making asbestos-cement shingles : en
  • FR845576A - Self-propelled car with bogies and motor mounted below the floor of the car and in the bogie : en fr
  • US2171058A - Method of manufacturing roller bit structure : en
  • US2171326A - Connection for continuous structures : en
  • DE680486C - Television process for the transmission of colored images : de en
  • GB512316A - A new or improved process for obtaining shrinkage of sheet material : en
  • AU33839A - Improvements in and connected with belt and the like pulleys of the split type : en
  • CH206817A - Device for the sudden shutdown of AC commutator motors with adjustable brushes. : de en
  • US2171183A - Maximum demand indicator : en
  • GB512206A - Improvements in amusement apparatus of the roundabout type : en
  • FR845577A - Improvements in methods and devices for the hot production of agglomerates, in particular agglomerates of cork, slag wool and the like : en fr
  • GB512029A - Improvements relating to hydraulic control mechanisms : en
  • GR8456B - METHOD FOR MANUFACTURING BENZOLOSULONIC ACID PRODUCERS. : el en
  • FR845597A - Protective enclosure for x-ray tubes : en fr
  • FR845733A - Transmission part in ceramic material subjected to torsion : en fr
  • IE15611L - Luminescent materials : en
  • US2170795A - Manufacture of gasoline and fuel oil : en
  • DE680557C - Locking device for the ram of lifting platforms : de en
  • DE680404C - Device for damping the rolling movement in vehicles : de en
  • GB511996A - Process for the manufacture of reinforced glass : en
  • GB512152A - Improved fastening for wooden air screw blades : en
  • GB512356A - Improvements in hinges and in members or articles provided therewith : en
  • US2171015A - Bottle cap or the like : en
  • US2171016A - Sign : en
  • DK56598C - Elongated ceramic insulator with solid core equipped with rain screens. : da en
  • DE680620C - Method and device for the production of openwork and clad patterned goods on circular knitting machines : de en
  • GB512208A - Improvements in steel alloys : en
  • FI18581A - Airflow propellers : en fi
  • USD116386S - Design fob a textile fabric ob : en
  • GB511960A - Improvements in or relating to blind stitch sewing machines : en
  • GB512380A - Improvements relating to the physical conditioning of grain preparatory to milling : en
  • GB512049A - Improvements in or relating to forced circulation boilers : en
  • DE680640C - Device for improving the efficiency of blade wheels on ships by means of profiled bodies : de en
  • US2170855A - Production of alkoxyacetones : en
  • CA383616A - Textile material treatment : en fr
  • GB511983A - Improvements in amplifying and frequency-changing circuits : en
  • GB512374A - Improved device for filling compression moulds or like spaces with pulverulent materials : en
  • US2171255A - Portable road roller : en
  • PL28753B1 - The method of obtaining carbohydrate derivatives. : en pl
  • PL28725B1 - Oarl H. Lundholm Aktiebolag, Stockholm. Parachute tower. Patent dependent on patent No. 18834. : en pl
  • GB512338A - Improvements in or relating to insulated electrical conductors and methods of makingthe same : en
  • FR845667A - Ophthalmic frame : en fr
  • GB511959A - Improvements in or relating to starters of internal combustion engines : en
  • GB511999A - An improved stud fastener : en
  • DE680305C - Device for making people or objects completely or partially invisible or for achieving three-dimensional and spatially freely floating representations with a moving image : de en
  • FR845616A - Support and drive device for films : en fr
  • GB511973A - Improvements in or relating to the washing of solid materials in granular or like form : en
  • GB512134A - Providing cast iron articles with a cell-like surface : en
  • FR845789A - Flower holder : en fr
  • GB511953A - Improvements in or relating to the distribution of electrical energy : en
  • GB512072A - Improvements in or relating to a method of and apparatus for making socketed screws : en
  • GB512260A - Improvements relating to showcases : en
  • DK56596C - Oscillator for Frequency Multiplication. : da en
  • GB512351A - Improvements in mountings for engines, machinery and the like : en
  • FR845647A - Device for closing berries : en fr
  • GB512014A - Improvements in the manufacture of metal tubing : en
  • US2170945A - Crinkled paper tube and method of forming same : en
  • GB512381A - Improvements in or relating to the heels of footwear : en
  • DE680495C - Suspension of a railway engine : de en
  • FR845717A - Adjustment device for cylinder train engines, etc. : en fr
  • US2170832A - Abrasive throwing machine : en
  • US2171128A - Instrument holder : en
  • DE680598C - Fluid damping for the brake or clutch of sliding armature motors : de en
  • PL28771B1 - Radio receiver with superimposed frequency. : en pl
  • FR845643A - Deformable trapezoidal suspension : en fr
  • FR845672A - Dyes of the triarylmethane series and their production process : en fr
  • US2171470A - Attachment to typewriter keys : en
  • USD116396S - Design fob a dress : en
  • GB512019A - Improvements in and relating to electric cooking apparatus : en
  • GB512361A - Improvements in and relating to electric motor control systems : en
  • DE680422C - Process for warming up, evaporating and boiling sugar juices : de en
  • FI18569A - For the purposes of this Regulation, the weight of the waste shall be reduced to a maximum of : en fi
  • FR845724A - Advanced cement : en fr
  • GB512078A - Improvements in or relating to automatic controls for washing, dry-cleaning, bleaching, dyeing and the like machines : en
  • PL28694B1 - The method of gluing artificial silk and the method of producing glue. : en pl
  • PL28758B1 - and similar measures. : en pl
  • AU26939A - Improvements in or relating to fur hat bat making machines : en
  • US2171136A - Centrifugal separator provided with special discharges : en
  • BE435521A - : fr
  • CA383619A - Pump shaft seal : en fr
  • GB511986A - Improvements in or relating to air-filtering units for respirators : en
  • US2171437A - Apparatus for the electrolytic production of metallic shapes : en
  • US2171504A - Measuring tape : en
  • CA383652A - Transversely ribbed fabric : en fr
  • GB512047A - Improvements in and relating to surge systems of testing : en
  • DE680482C - Method and device for the production of doll head moldings : de en
  • FR845707A - Process for metallizing metal articles by sputtering or thermal vaporization in vacuum : en fr
  • FR845635A - Welding equipment : en fr
  • FR845694A - Elastic and flexible tube for high pressure, with connection fitting : en fr
  • US2170865A - Propeller blade : en
  • US2171162A - Mining machine : en
  • GB512113A - Improvements in and relating to the utilisation of the exhaust gas energy of aircraft engines for propulsion purposes : en
  • US2170821A - Can-closing machine : en
  • GB512074A - Improvements in or relating to revolving doors : en
  • GB512227A - Improvements in or relating to permanent brake magnets of high coercive force : en
  • GB512228A - Automatic fire-arm with breech mechanism locked by inertia : en
  • PL28700B1 - Walter Herz, Vienna. The impregnating agent and the method of its preparation. : en pl
  • GB511985A - Improvements in or relating to figures adapted to represent the human body : en
  • FR845681A - Rotating capacitor with rotor fixed isolated on the metal shaft : en fr
  • GB512328A - Improvements relating to parquet flooring : en
  • GB512144A - Improvements in or relating to the impregnation of metals with silicon : en
  • DE680501C - Installation rotary switch : de en
  • FI18586A - The provisions of this Regulation shall apply to livestock : en fi
  • CH206723A - Process for the preparation of a new tetrakisazo dye. : de en
  • CH206734A - Process for the production of highly elastic and high-strength threads, foils or other structures made of viscose. : de en
  • US2170948A - Sewing machine : en
  • CH206659A - Closing facility. : de en
  • CH206753A - Firearm with telescopic sight. : de en
  • PL28670B1 - Stanislaw Szpor, Warsaw. Capacitor insulator. : en pl
  • GB512020A - Improvements in ring binders for books : en
  • FR845562A - Sliding door trim : en fr
  • FR845713A - Improvements to variable-pitch aerial propellers : en fr
  • FR845765A - Method and devices for the reduction of evaporative losses in tanks of volatile products : en fr
  • GB512006A - Machine for vending bottled beverages : en
  • AU395938A - Improvements in or relating to pattern grading machines : en
  • CH206879A - Gripper device on rubber-tyred motor vehicle wheels. : de en
  • BE435410A - Mechanism for recording various times : en fr
  • CA383715A - Fastener element supplying device : en fr
  • CH206771A - Device for making sharp-edged or obtuse-edged holes. : de en
  • CA383650A - Magnetic separator : en fr
  • FI18573A - Flame retardant system : en fi
  • GB512217A - Improvements relating to reciprocatory pumps : en
  • PL28931B1 - Device for treating fibrous materials with gases or liquids. : en pl
  • USD116382S - Design fob a combination desk unit : en
  • DE680549C - Arrangement for the interruption of one or more conductors of a distribution network for the purpose of remote control : de en
  • FR845708A - Improvements in dry electric shavers : en fr
  • FR845764A - Improvements to clocks, pendulets or the like : en fr
  • GB512008A - Improvements in threaded elements for locking purposes : en
  • GB512267A - Improvements in the flame-cutting of metal plates, bars and the like : en
  • GB512346A - Improvements in the suspension of compasses and other nautical instruments : en
  • GB512248A - Improvements in or relating to shaft couplings : en
  • US2170792A - Polishing machine : en
  • FR845646A - Transport device for hot materials : en fr
  • FR845622A - Quick junction for machine tool spindles with tool heads, especially drill heads : en fr
  • GB512112A - Improvements in or relating to knitting machines : en
  • GB511991A - Improvements relating to kiers : en
  • GB512093A - Tobacco feeding device : en
  • DE680392C - Process for the recovery of sulfur from materials containing sulfur in elemental form : de en
  • DE680561C - Process for the production of hollow metal bodies : de en
  • US2171300A - Method of producing ferrous sheet material : en
  • USD116387S - Design fob a textile fabric or : en
  • GB512066A - Improvements in and relating to refuse containers : en
  • GB512030A - Watertight watch case : en
  • USD116371S - Design fob a combination perfume : en
  • DK56612C - Vending machine with a large number of warehouses. : da en
  • US2171252A - Sash counterbalancing means for window frames : en
  • FR845558A - High voltage direct current generator installation : en fr
  • FR845683A - Level indicator : en fr
  • AU168639A - Improvements relating to floor, walland like coverings : en
  • CA383713A - Liquid fuel burner : en fr
  • DE675123C - Fabric punching device, especially for punched pieces for the production of shirts : de en
  • DE680470C - Execution belt for sheet laying devices of printing machines : de en
  • CH206839A - Electric discharge tube. : de en
  • FR845685A - Control device for sewing machines : en fr
  • FR845690A - Double twist twist spindle : en fr
  • PL28895B1 - Device for freezing ice cream. : en pl
  • US2170961A - Relay : en
  • PL28917B1 - A method of purifying p-oxyphenylacic acid. : en pl
  • USD116397S - Design for a dress : en
  • US2170840A - Cellulosic film and process for preparing same : en
  • BE435390A - : en fr
  • GB512235A - Intermittent tension devices : en
  • GB512263A - Improvements in and relating to the driving of the raising rollers in cloth raising machines : en
  • GB512307A - Improvements in or relating to screw and nut elements : en
  • DE680243C - Electrode holder for electrical discharge vessels : de en
  • DE680468C - Manufacture of arsenates : de en
  • DE680254C - Weather lock for mining subsidies : de en
  • PL28619B1 - Willy Mansbach, Berlin. A display device having an invisible drive, which causes the exposed objects to jump or rotate, and the object to be rotated by such a device. : en pl
  • CA383653A - Window sash : en fr
  • BE435809A - : en
  • CH206927A - Circuit arrangement for repeated signaling, especially in signal systems for hotels, hospitals or the like. : de en
  • GB511990A - Improvements in and relating to methods of and apparatus for determining the tensionin rolled strip material : en
  • FR845725A - Process for manufacturing decorated objects and objects obtained by means of this process : en fr
  • GB512362A - Improvements in and relating to whaling harpoons with explosive shells : en
  • US2171362A - Photocell system to control spacing of traveling articles : en
  • US2170956A - Method for refining rosin : en
  • US2171308A - Rotary tooth brush : en
  • DE680484C - Process for the production of semi-pyrophoric metal compounds : de en
  • GB512118A - Improvements in or relating to amplifiers with automatic contrast control : en
  • AU108341B2 - Improvements in non-knocking motor fuels : en
  • PL28847B1 - : en pl
  • PL28787B1 - Fagersta Bruks Aktiebolag, Fagersta. ^ / * H Ou Insert, filling the solder joint between the board and the shank of the tool and the method of its manufacture. : en pl
  • US2171258A - Method and apparatus for lining crown caps : en
  • USD116353S - Design fob a mirror : en
  • DE680327C - Process for the production of hydrocarbon oils by pressure hydrogenation of solid carbon-containing starting materials : de en
  • DE680632C - Device for drying paper or cardboard sleeves : de en
  • CH206699A - Plant for the preparation of bread cereals and other grains. : de en
  • CH206847A - Toe cap. : de en
  • AU2539A - Process forthe production of bituminous emulsions : en
  • AU502238A - Improvements in or relating to electron discharge tubes : en
  • DK56617C - Automatic Safety with Handbrake for Motor Vehicles. : da en
  • AU364038A - Improvements in auxiliary electrodes in electric discharge devices : en
  • CH206874A - Coupling device for clutch-release. : en fr
  • GB512187A - Improvements in the finishing treatments of textile materials : en
  • US2170968A - Fabric finishing and like machines : en
  • CH206688A - Preparation for printing textile fabrics. : de en
  • PL28860B1 - Franciszek Chowaniec, Rychwald. A projection camera for displaying kaleidoscopic images that change themselves. : en pl
  • US2170858A - Time and distance recorder : en
  • CH206683A - Apparatus attached to a sewing machine for making buttonholes and other stitching in clothing. : de en
  • CH206875A - Streamlined vehicle with rear engine. : de en
  • US2171151A - Circuit for amplitude modulation carrier wave : en
  • DK56603C - Procedure for the production of artificial taverns with a rough surface. : da en
  • CH206852A - Process for the preparation of derivatives of the morphine series substituted in the core by hydrocarbon radicals. : de en
  • BE435635R - Manufacture of wet binders : en fr
  • PL28718B3 - Device for emptying removable garbage barrels. : en pl
  • US2170831A - Abrasive throwing machine : en
  • US2171210A - Board joint reinforcement : en
  • PL28776B1 - Cathode lamp. : en pl
  • US2171057A - Roller bit : en
  • USD116394S - Design for an amplifier or the like : en
  • US2171166A - Condensation product from p-di-chlorbenzol and sulphuric anhydride and its derivatives : en
  • US2171111A - Method of manufacturing spherical light weight containers : en
  • US2171301A - Collar form attachment for garment hangers : en
  • DE680635C - Device for removing tubular or bottle-shaped paper vessels, cardboard sleeves and the like. Like. From the holder of the processing machine o. : de en
  • GB512274A - Improvements in cutting tools of the inserted blade type : en
  • CH206768A - Method of manufacturing a flexible pipe, installation for its implementation, and flexible pipe obtained by means of this method. : en fr
  • DE680380C - Parlor game in which the game pieces are slidably arranged in slots in the playing field : de en
  • DE680387C - Method for grinding double inclined treads of used railway wheels : de en
  • GB512197A - A method of and means for raising aeroplanes : en
  • GB512407A - Improvements in and relating to devices for erecting bodies such as parts of aircraft : en
  • CH206838A - Circuit with oscillator tubes operated entirely with mains alternating current, for generating a high-frequency voltage free of any interruption. : de en
  • USRE21187E - Dental cleaning spray : en
  • CH206861A - Telecontrol system. : de en
  • CH206877A - Device on vehicles with a rear engine for cooling the same by means of a fan. : de en
  • CH206805A - Flushing and supercharging fans on internal combustion engines, in particular two-stroke diesel aircraft engines. : de en
  • CH206812A - Spark plug with a ceramic insulator. : de en
  • CH206901A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • US2171049A - Shoe for oil well packers : en
  • US2171235A - Automatic fluid connection for toggle actions : en
  • US2171322A - Hot liquid container : en
  • US2171359A - Glow lamp : en
  • DE680395C - Device for regulating the temperature in the catalytic pressure hydrogenation of coals, tars, mineral oils or their distillation products : de en
  • CH206694A - Welt shoe. : en fr
  • PL28826B1 - *** P4Z4, W *** P4Z4, W *** P4Z4, W : en pl
  • US2170905A - Clutch control : en
  • FR845574A - Stationary furnace for the distillation of agglomerates of coal or carbonaceous materials : en fr
  • GB512023A - Means for forced commutation of current in a converting arrangement employing a discharge device : en
  • CA12506S - Elastic fabric : en
  • CH206779A - Grinding tool. : de en
  • GB512265A - Improvements in regenerative or recuperative heat exchanging apparatus : en
  • FI18572A - Milk cooler : en fi
  • AU108303B2 - Improvements in frequency control in superheterodyne receivers : en
  • GB511942A - Method and apparatus for purifying gases from contained impurities which are separated out by combination with a washing fluid : en
  • GB512110A - Improvements in and relating to the warping of ships in locks, docks and the like : en
  • GB512315A - Improvements relating to the temperature-compensation of ferraris meters : en
  • US2171459A - Apparatus for and method of sealing wrapped packages : en
  • DE680580C - Blow molding machine : de en
  • FR845780A - Multi-stage hydraulic transmission : en fr
  • CA383690A - Centrifugal separator : en fr
  • CA383739A - Self-parking windshield wiper : en fr
  • GB512090A - Process for the production of triturations from fresh plants or portions of same : en
  • CA383727A - Motor fuel : en fr
  • CH206719A - Process for the preparation of 1-methyl-4-phenyl-piperidine-4-carboxylic acid nitrile. : de en
  • US2171366A - Telephonograph : en
  • GB512147A - Hulling, husking and cracking machine : en
  • AU108315B2 - Improvements in pick-proof cylinder locks : en
  • FR845676A - Counterpedal control device for drum or other brakes, of bicycles, tandems and other such vehicles : en fr
  • DE680317C - Arrangement for single-frequency transmitter : de en
  • PL28604B1 - N. V. Handel ¦ Maatschappij "Cellastic", Amsterdam. Cell tire. : en pl
  • DE680516C - Control device : de en
  • CH206654A - Sheet iron radiators. : de en
  • FR845736A - Improvements made to trailers for road vehicles, in particular those towed by automobiles : en fr
  • DE680552C - Lamp for partial illumination of a room with ultraviolet rays : de en
  • US2171488A - Tray ob baseboard for use with : en
  • GB512234A - Improvements in and relating to copying cutting machines : en
  • GB511937A - Improvements in or relating to machine gun lock mechanism : en
  • DE680615C - Flat knitting machine with electromagnetic control of the working parts of the carriage : de en
  • US2171070A - Draft eliminator : en
  • FR845589A - case, in particular for razor blades : en fr
  • GB512052A - Improvements in rotary valve internal combustion engines : en
  • GR8459B - METHOD OF TRANSPORTING THE DIRTY AIR OF CITIES TO THE COUNTRY. : el en
  • US2170872A - Process for extracting carotinoids : en
  • US2171256A - Radio aerial : en
  • US2171263A - Protective device : en
  • US2171288A - Coupler for train pipes : en
  • USD116374S - Design for an oil burner pumping : en
  • GB512199A - Improvements in or relating to packing rings for axles or shafts : en
  • GB511994A - Improvements relating to resilient suspension systems of vehicles : en
  • GB512188A - Improvements in hurricane lanterns : en
  • PL28837B1 - Device for shifting the set of coupling wheels in counting machines and cash registers. : en pl
  • AU353538A - Amplifier with negative feedback : en
  • US2171276A - Metal half tone screen : en
  • GB511948A - Manufacture of compositions for use in horticulture : en
  • GB512384A - Improvements in or relating to dust extracting apparatus in finishing machines, especially for finishing footwear : en
  • US2170813A - Apparatus for determining insulating values : en
  • US2171032A - Motor mounting for machine frames : en
  • US2171498A - Sulphonates of polyaryl polyethers : en
  • GB512334A - Improvements in vibratory motors, particularly for use in packing granular and other materials : en
  • DE680542C - Airplane with rotatable split wings : de en
  • GB511968A - Improvements in or relating to methods and apparatus for the filtration of alkaline solutions containing dissolved precious metal values : en
  • GB512310A - Improvements in or relating to hair curling appliances : en
  • PL28638B1 - Wytwórnia Radiotechniczna "Ava" Limited Liability Company, Warsaw. An electromagnetic throat recorder and a handset handset with two such laryngaphones. : en pl
  • GB512355A - Improvements in or relating to gyroscopes : en
  • CH206766A - Casting process for the production of blocks from aluminum or aluminum alloys, in particular aluminum alloys containing copper, device for carrying out the process and block produced by the process. : de en
  • US2170989A - Alkyl halo-diphenyloxides : en
  • US2171374A - Seat and deck construction for stadia : en
  • US2171165A - Shielded spark plug : en
  • US2171237A - Vapor lamp : en
  • US2171279A - System of converting direct current : en
  • DE680643C - Toy drop bomb : de en
  • US2170997A - Tube cleaner : en
  • US2170976A - Production of hydrocarbon products by thermal treatment of materials containing carbon : en
  • USD116421S - Design fob a textile fabric ob : en
  • PL28851B1 - NK? Rlf 4/0 $ Akciova spolecnost dfive Skodovy zavody v Plzeň, Prague and Bohdan Pantoflicek jr, Pilsen. Front-loaded firearms. : en pl
  • US2171293A - Radio navigational guide system : en
  • GR8461B - FILTER ADJUSTED TO THE TOBACCO PIPE TO NEUTRATE NICOTINE. : el en
  • GB512198A - Improvements relating to window blinds and similar screening devices : en
  • GB512207A - A method of and apparatus for fermenting milk : en
  • GB512258A - Improvements relating to the mounting of drawers in visible index cabinets and the like : en
  • US2170985A - Sign composing apparatus : en
  • USD116408S - Design fob a dress ensemble : en
  • PL28872B1 - N. V. Philips' Gloeilampenfabrieken, Eindhoven. The receiving connection system with frequency conversion, in which a multi-grid lamp is used as the oscillator-modulator. : en pl
  • US2170882A - Lighting construction : en
  • US2171185A - Longitudinal spring for telescopic tubular guides : en
  • US2171315A - Method of destroying insects and microorganisms : en
  • FR845605A - Improvements to electrolytic capacitors : en fr
  • FR845607A - Improvements to cameras : en fr
  • US2170839A - Cellulosic pellicles and process for preparing same : en
  • US2171371A - Crimping device : en
  • US2171389A - Process of applying a coating of lacquer to flexible materials : en
  • DE680431C - Device for remote control of street lamps, multi-tariff meters, air raid protection signals and the like distributed over a power network. like : de en
  • FR845677A - Device for rapid evacuation of the upper floors of buildings by slide in the event of fire or alert : en fr
  • FR845775A - Quick identification system for station name ranges in radio receivers : en fr
  • GB512157A - Improved alarum gun : en
  • CH206917A - Process for the preparation of a new quaternary ammonium salt. : de en
  • PL28703B1 - The method of securing rivet, screw and similar seams from external influences. : en pl
  • US2171073A - Motor vehicle switch : en
  • DE680567C - Process for the catalytic pressure hydrogenation of carbons, tars, mineral oils or their distillation products : de en
  • GB512102A - Improvements in and relating to electrical condensers : en
  • GB512131A - Improvements in blast furnace stoves : en
  • GB512400A - Improvements in and relating to gas blast electric switches : en
  • US2170991A - Air conditioning apparatus : en
  • US2171018A - Carton for wax records : en
  • USD116432S - Design for a pair of spectacles : en
  • FR845552A - Improvements to discharge lamps : en fr
  • GB512034A - Improvements in and relating to quick-release hose couplings or connections : en
  • US2171113A - Apparatus for detecting leakage : en
  • GB512103A - A tool for the finish-grinding of grooves located in the interior of hollow bodies : en
  • GR8454B - BRAIN PIPE MOLDING MACHINE. : el en
  • GB512183A - Improvements in and relating to cinematograph projection apparatus : en
  • FR845608A - Machine for making biscuits and similar articles : en fr
  • GB512128A - Improvements in or relating to resolving, calculating or computing mechanism particularly for use in gun-fire control apparatus : en
  • GB512292A - Process for the manufacture of glass : en
  • FR845651A - Agglutinated permanent magnets : en fr
  • FR845741A - Improvements made to cylinder and piston machines : en fr
  • GB512314A - Improvements in and relating to nut locking devices : en
  • USD116384S - Design for a heater or similar : en
  • GB511945A - Improvements in and relating to the production of titanium carbides : en
  • GB512409A - Improvements in metal mounts for printing blocks : en
  • US2171207A - Process for the polymerization of olefins : en
  • US2170803A - Photographic sensitizing dyes and their preparation : en
  • US2171275A - Heating unit : en
  • US2171405A - Welding strip and centrifugal casting : en
  • US2170980A - Vehicle coupling : en
  • US2171355A - Means for producing compound motion : en
  • DE680421C - Floating suction dredger with a bucket wheel mounted at the end of the suction line : de en
  • DE680584C - Switchgear, especially for electric stop displays in electric rail vehicles : de en
  • GB512270A - Improvements in quartz and like seals : en
  • FR845606A - Mounting device for aircraft power units : en fr
  • GB512266A - Apparatus for forming curved sheets : en
  • DE680496C - Screw slot terminal for multi-core electrical cables : de en
  • GB512385A - Improvements in or relating to number rollers for metering mechanisms, especially for electricity measuring appliances : en
  • CH206705A - Dressing sack. : de en
  • US2170994A - Display rack for books and the like : en
  • US2171037A - Planter : en
  • GB512179A - Method for manufacturing a highly active depolariser from natural pyrolusite : en
  • AU108327B2 - Improvements in or relating to a method and apparatus removing soluble impurities from solid substances : en
  • CH206829A - High-ohmic resistor wound from wire. : de en
  • FR845719A - Electromechanical vibrating device : en fr
  • DE680642C - Device for chalking bump caps on billiard sticks : de en
  • FR845628A - Improvements in printing or decoration of textile fabrics : en fr
  • US2171194A - Overhead door structure : en
  • US2170954A - Seasoning composition : en
  • DE680488C - Process for the production of barium for electrical discharge vessels : de en
  • US2171062A - Press for the extrusion of lead and other metals : en
  • FI18576A - Clover cutter to be fitted to the threshing machine : en fi
  • USD116427S - Design for an eye shade or similar : en
  • US2170827A - Cellulosic pellicles and methods for producing same : en
  • USD116393S - Design fob a shoe rack : en
  • AU346738A - Apparatus for cutting veneer or ply sheets : en
  • BE435381A - Box to be built into the plaster of a wall : en fr
  • CA383649A - Garment belting : en fr
  • CH206781A - Machine vice with clamping device. : de en
  • CH206804A - Two-stroke internal combustion engine with direct current purging. : de en
  • CH206910A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • DE680397C - Process for the preparation of salts of guaiacol phosphoric acid esters : de en
  • DE680631C - Machine for winding conical or cylindrical tubes made of paper, cardboard or the like. : de en
  • GB512383A - Improvements in glazing for shop windows : en
  • US2171281A - Walking doll construction : en
  • GB512050A - Improvements in and relating to motor vehicle gearing : en
  • GB512095A - Improvements in seats more particularly for automobiles : en
  • FR845649A - Process for preparing high molecular weight aldehydes, ketones and alcohols : en fr
  • GB512117A - Improvements in or relating to the cutting of pipes : en
  • US2171130A - Bag-closing apparatus : en
  • US2171201A - Process for purification of laundry waste : en
  • FR845678A - Mold for pyrography decoration : en fr
  • FR845799A - Clutch refinements : en fr
  • US2171161A - Mining machine : en
  • US2171396A - Brake mechanism : en
  • US2171144A - Selective gear transmission : en
  • US2171318A - Sewing machine table : en
  • FR845642A - Support for photocell : en fr
  • FR845772A - Apparatus for determining and measuring mechanical phenomena by means of electricity : en fr
  • DE680569C - Molding machine with pressing device and rocker or hammer device arranged below the molding box carrier : de en
  • DE680463C - Machine set consisting of a cross-field generator and engine in a Leonard circuit : de en
  • GB512129A - Improvements in self-locking control wheels or handles particularly for use in gun-fire control apparatus : en
  • DE680622C - Process and flat weft knitting machine for the production of the double edge of goods : de en
  • DE680426C - Protective clothing : de en
  • DE680547C - Removal of arsenic and phosphorus from tungsten and molybdenum liquor : de en
  • US2171100A - Impulse type rotary crusher : en
  • DE680381C - Hand-molded impact press : de en
  • DE680448C - Differential slide device for support arm sewing machines : de en
  • DE680390C - Device for cooling beer and trub wort : de en
  • FR845686A - Excitation device for ignition electrodes : en fr
  • US2171033A - Process of contacting hydrocarbon vapors with zinc chloride : en
  • US2171190A - Automatic check and shut-off valve : en
  • USD116349S - Design for a bottle : en
  • FR845679A - Device for permanent waves : en fr
  • FR845706A - Oscillator relay : en fr
  • CH206725A - Process for the preparation of a polyazo dye. : de en
  • DE680480C - Cinema machine with direct motor drive : de en
  • SU55520A1 - Metal Bird Making Machine : en ru
  • US2170847A - Electron beam deflection circuits : en
  • US2171457A - Automatic auto safety circuit breaker : en
  • CH206691A - Washing machine. : de en
  • CH206792A - Piston sealing device. : de en
  • US2171282A - Coupling plate for wheel presses : en
  • CH206713A - Vertical diaphragm electrolyser. : en fr
  • DE1472607U - : de en
  • DE680439C - Process for increasing the solubility of halogenated phenols in soap solutions : de en
  • AU108305B2 - Amplifier with negative feedback : en
  • US2170837A - Apparatus for use in making shoes : en
  • CA383618A - Pump shaft seal : en fr
  • CH206816A - Arrangement for suppressing the disturbing harmonics of electrical equipment connected to three-phase networks with an iron core. : de en
  • CH206649A - Shutters with movable cross-boards, especially for darkening according to the regulations of passive air protection. : de en
  • AU79139A - Improvements in or relating to insulated electric conductors : en
  • CA383746A - Headlight tester : en fr
  • AU349538A - Improvements in electrode structures for electron discharge devices : en
  • AU108312B2 - Improvements in or relating to machines for making glass-to-metal seals : en
  • SU55504A1 - Machine for lapping the planes (mirrors) in the air distributor bushings : en ru
  • PL28897B1 - N. V. Philips' Gloeilampenfabrieken, Eindhoven. Electric discharge lamp. : en pl
  • US2171499A - Dry-cleaning machine : en
  • AU402938A - Improvements in screw type fluid propelling apparatus : en
  • CA383748A - Tractor hitch and brake : en fr
  • BE435456A - : en
  • CA383734A - Sound recording mechanism : en fr
  • PL28754B3 - A method of producing cold with a large difference between the temperature of the cold produced and the temperature of the cooling water. : en pl
  • DE680174C - Arrangement on vehicles, in particular on motor vehicles : de en
  • DE680242C - Temperature compensation for alternating current measuring devices, which consist of dry rectifiers and a direct current measuring unit : de en
  • CH206681A - Spinning bobbin and holder for rayon spinning machines. : de en
  • PL28668B1 - Apparatus for the taking and playing of picture or sound-image films. Patent dependent on patent No. 25909. : en pl
  • CH206893A - Process for the waterproof fixation of agents against animal and vegetable pests. : de en
  • CH206717A - Process for the preparation of a mixture of bisquaternary dimorpholine compounds. : de en
  • BE435664A - : en
  • DE680521C - Friction gear change transmission : de en
  • PL28810B1 - A method of operation of electric railway vehicles, fed with a single-phase overhead cable, and a device for applying the method. : en pl
  • US2171098A - Earth working apparatus : en
  • US2171513A - Process for treating fabrics and like materials to produce effects therein and products therefrom : en
  • DE680568C - Process for the production of tuning screws for magnetic mass cores : de en
  • GB511956A - Improvements in or relating to the protection of electro-magnetic circuits, particularly in dynamo electric machines : en
  • CA383646A - Weight recorder : en fr
  • CH206872A - Single-skid sled. : de en
  • CH206878A - Heating device for vehicles with water-cooled engines. : de en
  • USD116378S - Design fob a necklace : en
  • GB512038A - Improvements in and relating to the production of albumen-containing plastic masses from urea or its derivatives and formaldehyde : en
  • GB512062A - Improvements in reflectors : en
  • FR845792A - Aerodynamic vehicle with engine at the rear : en fr
  • PL28677B3 - Glass tempering method. : en pl
  • PL28743B1 - X-ray method with the use of contrast agents. : en pl
  • US2171084A - Dining table : en
  • FR845716A - Switching reactance : en fr
  • GB512204A - Improvements in or relating to the method of and apparatus for drying materials in bulk, especially applicable to the dehydrating of wet peat : en
  • GB512375A - Sintered permanent magnets and method of manufacturing same : en
  • CA383733A - Moulding machine : en fr
  • DE680360C - Chromium-nitrogen-steel alloy : de en
  • DE680530C - Elastic loop fabric in the direction of the warp : de en
  • CH206797A - Propellant gas generator consisting of a two-shaft opposed piston internal combustion engine and a compressor unit. : de en
  • GB512247A - Improvements in or relating to vapour electric arc converter arrangements : en
  • CH206685A - Dyeing auxiliaries. : de en
  • PL28683B1 - Alessandro Beldimano, Rome and Ettore Manzolini, Rome. Wind turbine. : en pl
  • CA383651A - Rubberized scraper : en fr
  • CA383678A - Electric heating device : en fr
  • FR845731A - Airplane wing construction : en fr
  • US2171411A - Notebook : en
  • US2170818A - Internal combustion engine : en
  • US2171233A - Phototube : en
  • US2170851A - Master cylinder and piston structure : en
  • US2170896A - Transfer machine : en
  • AU349038A - A method of indicating leakages in tubes, containers andthe like : en
  • CH206791A - Device for holding tubular or rod-shaped components. : de en
  • AU363938A - Improvements in auxiliary electrodes in electric discharge devices : en
  • CH206808A - Mufflers for internal combustion engines. : de en
  • CH206894A - Firing device for solid fuels on stoves and stoves. : de en
  • CH206913A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • DE680579C - Break-open clamping column for hammer drills : de en
  • GB512071A - Improvements in or relating to hand irons : en
  • DE680524C - Process for the continuous freezing of food : de en
  • DE680592C - Switching device for the dial of clocks with 24-hour division : de en
  • PL28752B1 - Loudspeaker device in which at least one acoustic screen loudspeaker is suspended from the wall with a slight gap between the wall and its acoustic screen. : en pl
  • US2170924A - Vehicle draft means : en
  • SU55583A1 - Moving device for unloading bulk materials from railway platforms : en ru
  • US2170959A - Photographic camera : en
  • GB512186A - Improvements in or relating to safety razor blades : en
  • DE680562C - Hatch lock consisting of an outer and an inner cover : de en
  • DK56606C - Method for the production of therapeutically useful swelling agents. : da en
  • CH206785A - Ashtray. : de en
  • GB512224A - Improvements in or relating to the electrical precipitation of suspended particles from gaseous fluids : en
  • US2171336A - Nonglare reflector : en
  • GB512010A - Prefill valves for hydraulic presses : en
  • GB512333A - Improvements in or relating to electric motor control systems : en
  • GB512388A - Improvements in and relating to x-ray tubes : en
  • AU108342B2 - Improvements inthe manufacture and production of liquid or solid hydrocarbons or liquid or solid oxygen-containing derivatives of hydrocarbons : en
  • DE680531C - Hand rotary drill with compressed air drive by vane motor : de en
  • CH206813A - Ignition device for internal combustion engines with a multiple magneto. : de en
  • CH206757A - Roller counter. : de en
  • GB512017A - Improvements in or relating to suction cleaners : en
  • GB512202A - Improvements in ventilating devices for water closets : en
  • GB512293A - Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed lathe : en
  • US2171349A - Electric lantern : en
  • CA383711A - Boiler feeding apparatus : en fr
  • US2171090A - Cotton tamper : en
  • US2171219A - High frequency condenser : en
  • US2171445A - Method of knitting fabric with elastic inlay and embroidery pattern : en
  • PL28777B1 - Ringhoffer - Tatra- Werke A. G., Prague. A motor vehicle. : en pl
  • PL28649B1 - - isopropylmethylamine. : en pl
  • PL28761B1 - Round weaving loom. : en pl
  • GB512323A - Improvements in or relating to the treatment of water : en
  • FR845709A - Improvements relating to dry electric shavers. : en fr
  • DE680434C - Arrangement for monitoring the operation of controlled discharge paths, in particular rectifiers : de en
  • FR845638A - Suspension device applicable, for example, to aircraft landing gear : en fr
  • CH206746A - Photographic apparatus with light meter attached. : de en
  • CH206897A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • US2171278A - Vehicle-controlled selective system : en
  • US2171416A - Method of treating a producing formation : en
  • CA383719A - Drier felt : en fr
  • US2171008A - Engine choke : en
  • US2171418A - Carton machine and method of forming cartons : en
  • PL28655B1 - Panstwowe Zaklady Tele- i Radjotechniczne in Warsaw *), Warsaw. Homodyne receiver. : en pl
  • PL28732B1 - Ltd, Gibraltar. Machine for making seamless objects from blocks. : en pl
  • US2170864A - Machine for manufacturing strap sandals : en
  • US2171064A - Bolster spring unit : en
  • PL28747B1 - : en pl
  • PL28919B1 - Tefi-Apparatebau Dr. Daniel K.-G., Cologne. A device for the production of mechanical sound recordings with a cutting needle. : en pl
  • US2171152A - Electrical signaling system and device therefor : en
  • US2171107A - Underframe : en
  • GB512282A - An automatic fire-arm : en
  • AU108302B2 - Improvements in electrode structures for electron discharge devices : en
  • CH206643A - Process for the production of surface coverings for components. : de en
  • GB512294A - Tool or blank feeding mechanism for machine tools, particularly drilling machines : en
  • US2171156A - System and apparatus for determining at a distance the angular position of a submarine device : en
  • GB512281A - Improvements in and relating to the manufacture of electric incandescent lamps : en
  • DE680371C - Process for applying a metallic, preferably solderable, coating to quartz glass or quartz-like glasses : de en
  • FR845564A - Spraying plant for printed or dyed textiles : en fr
  • PL28617B1 - Method of processing fiber materials. : en pl
  • PL28634B1 - Ramon Balmes Solanas, Pineda de Llobregat, Barcelona. Extraction device for pre-cutting and pre-cutting preparatory machines. : en pl
  • CA383676A - Fibre bleaching process : en fr
  • DK56613C - Beet thinning machine. : da en
  • PL28903B1 - Device for transferring liquefied gases. : en pl
  • GB512406A - Improvements in or relating to hook adapters for bolts : en
  • DE680504C - Time switch in which the duration of a switching process is determined by pressing a rubber suction cup against a counterpart : de en
  • DE680564C - Bottle cap with pressure piece and wire clamp lever : de en
  • FR845735A - Improvement in cardboard boxes or other appropriate materials, of all polyhedral shapes, mountable, removable, and reassembled, without glue or metal staples : en fr
  • GB511941A - Improvements in or relating to engines and method of reducing vibrations therein : en
  • FR845648A - Darkening device for glass roofs : en fr
  • USRE21192E - Cupping device : en
  • GB512253A - Improvements in or relating to superheterodyne receivers : en
  • GB512389A - Rotary engine for driving or pumping or compressing : en
  • FR845570A - Improvements to contactors, circuit breakers and electrical switches : en fr
  • GB511946A - Improvements in apparatus for feeding ovens, furnaces or the like : en
  • GB512279A - Improvements in or relating to internal shoe drum brakes : en
  • CH206689A - Iron rack to be used when steaming with an iron. : de en
  • GB512249A - Improvements in duplicating machines : en
  • US2171420A - Carbamyl dithio-carbamates : en
  • DE680541C - Device on multi-needle sewing machines for laying a cover thread : de en
  • US2171009A - Oil refining process : en
  • FI18590A - Provision for the use of cloaked water, fresh air and other waste : en fi
  • FR845578A - Beauty case : en fr
  • FR845669A - Process for the preparation of artificial cation-exchanging resins : en fr
  • DE675047C - Arrangement for speed control of stand-fed three-phase shunt collector motors : de en
  • DE680398C - Device for turning over printed paper webs : de en
  • GB511992A - Improvements in or relating to the desulphurisation of molten iron : en
  • DK56591C - Apparatus for steaming women's and men's hats as well as women's and men's clothing. : da en
  • PL28664B1 - Method of surface hardening with natural cooling. : en pl
  • PL28702B1 - l \\ (P BMfc 'M / ot Sheath for folded pencils. : en pl
  • PL28714B1 - Multipole connector unit for wires, cables and connection teletechnical devices. : en pl
  • PL28796B1 - United Factories of Machines, Boilers and Wagons L. Zieleniewski and Fitzner-Gamper Spółka Akcyjna, Kraków. Cup bearing for hanging centrifuge spindle. : en pl
  • US2171410A - Pump : en
  • FR845695A - Speed reducer : en fr
  • GB512320A - Improvements in or relating to vapour electric converters : en
  • AU108540B2 - Improvements relating to floor, walland like coverings : en
  • CA383695A - Duplicating mechanism : en fr
  • CH206760A - Balance wheel for watch movements. : en fr
  • US2171361A - Knob structure : en
  • CA383716A - Railway car : en fr
  • CH206702A - Two-legged knife for meat cutter. : de en
  • DE680556C - Carrying device for encapsulated log winches : de en
  • DK56615C - Rent. : da en
  • GB512348A - Improvements relating to the tuning of radio receivers : en
  • DE680539C - Process for the production of surgical sewing material (catgut) : de en
  • CA383665A - Sealed package : en fr
  • CH206916A - Process for preparing 1,2-androstenedione-3,17. : de en
  • CA383645A - Plough : en fr
  • DE680399C - Conveyor roller in paper processing machines equipped with suction devices : de en
  • PL28708B1 - : en pl
  • US2171347A - Time delay relay : en
  • CA383647A - Muff : en fr
  • CH206714A - Process for the production of sodium monoxide. : de en
  • CA383723A - Glass working apparatus : en fr
  • US2170908A - Coupler shank and yoke connection : en
  • US2170796A - Sheet piling : en
  • US2171179A - Fuse assembly : en
  • GB512403A - Improvements in or relating to automatic stopping devices for gramophones : en
  • CA383613A - Drying oil and varnish processing : en fr
  • CH206775A - Method and device for stabilizing and drying wood. : de en
  • PL28690B1 - Elektrotechnische Fabrik Schmidt & Oo. Gesellschaft m. B. H., Podmokly. Electric gas igniter. : en pl
  • CA383744A - Hydrocarbon oil processing : en fr
  • US2170931A - Method for the production of patterned objects from powdered materials and the like : en
  • CH206752A - Construction game. : en fr
  • PL28831B1 - A method for extracting dust e.g. from coal during sorting, and a device for carrying out the method. : en pl
  • US2171217A - Metal packing ring for use with screwed pipe joints or couplings : en
  • CH206763A - Eight-day, chronograph, double hour clock movement. : en fr
  • PL28689B1 - : en pl
  • AU48939A - An improved process for, and composition for use in, hardening files andthe product ofthe process : en
  • CH206841A - Street lighting system. : de en
  • PL28704B1 - Wilhelm Kulka, Brno. flld A \ oS Heat exchanger. : en pl
  • PL28852B1 - F. Steiner Nfg., Atzgersdorf near Vienna. Hydraulic jack for airplanes. : en pl
  • US2171427A - Wrapping material : en
  • CH206648A - Device to demarcate pasture areas. : de en
  • GB512331A - Improvements in or relating to storage bins, bunkers or the like : en
  • PL28607B1 - Otto Siemen, Itzehoe and Johannes Hinsch, Itzehoe. Rotary pump for liquids with a paddle wheel. : en pl
  • FR845762A - Bright decorative pattern for bicycle headlights : en fr
  • US2171294A - Power and steering mechanism : en
  • CH206704A - Agent for the treatment of sea fish, which is brought together with the fish only for the purpose and only in such quantities that the unpleasant odor that otherwise occurs during their preparation is eliminated. : de en
  • CH206835A - Electromagnetic reciprocating motor. : en it
  • CH206914A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • CH206783A - Electrical button control on machine tools. : de en
  • US2171213A - Television transmitting tube and electrode structure : en
  • US2171492A - Coin collecting and object distrib : en
  • DK56611C - Wall arch carrier. : da en
  • AU108288B2 - Improvements in and relating tothe operation of vertical carbonising retorts : en
  • USD116343S - Design for a motor support : en
  • CA383661A - Bicycle frame : en fr
  • AU350638A - Device for egg washing : en
  • CH206774A - Lathe. : de en
  • BE435751A - Improvements to mechanical exploration devices for sound recordings : en fr
  • CH206905A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • PL28734B1 - Window locking device. : en pl
  • USD116399S - Design for a dress : en
  • PL28630B1 - Telefunken Gesellschaft fiir drahtlose Telegraphie m. B. H., Berlin. A circuitry for regulating the emissions of discharge lamps. : en pl
  • PL28809B1 - : en pl
  • US2170814A - Method of preparing copper powder : en
  • US2171007A - Glass-engraving machine : en
  • PL28722B1 - Telefunken Gesellschaft fiir drahtlose Telegraphie m. B. H., Berlin. f Multi-circuit receiver with equalizing capacitors for coils of different wave ranges. : en pl
  • PL28788B1 - A method of producing patterns on fabrics. : en pl
  • CH206815A - Refrigerator. : de en
  • CA383685A - Distribution cutout : en fr
  • DE680628C - Wooden roof for light, fixed or transportable houses, barracks, sheds or the like. : de en
  • CH206737A - Process for producing a metal cloth for paper machines and metal cloth produced by the process. : de en
  • CA383629A - Elastic band fastener : en fr
  • CH206708A - Process for the production of a product, which is particularly suitable for detergents, softening agents and water softeners and consists at least for the most part of sodium tripolyphosphate of the formula Na5P3O10, from a melt in which the ratio of Na2O: P2O5 is between 1.5: 1 and 1.77: 1 lies. : de en
  • US2171101A - Pin board : en
  • AU386038A - Hydraulic bag loader : en
  • CA383731A - Lubricating apparatus : en fr
  • CH206889A - Electric locking device for points. : de en
  • CH206922A - Machine for the intermittent processing of rod-shaped material, in particular parting machine. : de en
  • GB512360A - Improvements in piston rings : en
  • PL28782B1 - Oecil Ernest Harvey, Hornclmrch, Essex. Centrifuge for separating solids from liquids. : en pl
  • PL28876B1 - Gebriider Zehnder Radiatoren & Apparatenbau, Granichen. The refrigerator is completely self-acting. : en pl
  • US2171004A - Filter or strainer : en
  • US2171285A - Compressor regulator : en
  • USD116347S - Design for a dress : en
  • AU108330B2 - Improvements inthe construction of collapsible boxes or cartons : en
  • US2170856A - Power transmission : en
  • US2170891A - Car coupler : en
  • PL28730B3 - Union Kupplung A. G., Luxembourg. vJ Automatic rail coupler. : en pl
  • PL28867B1 - Henryk SobkoWSki, Strzemieszyce, fa fc p ZhtlU CJ / t Bookmark to the book. : en pl
  • US2171127A - Condenser : en
  • US2171096A - Apparatus for feeding molten glass : en
  • GB511958A - Improvements in or relating to shoe upper conforming machines : en
  • CA383722A - Article marking or decorating apparatus : en fr
  • US2170800A - Process for making composite titanium pigments : en
  • US2171123A - Showcase lock : en
  • USRE21188E - Centrifugal can feeding means : en
  • CH206660A - Device for actuating cistern. : de en
  • CH206749A - Arrangement for visualizing magnetic field images with the help of a ferromagnetic suspension placed in a test vessel. : de en
  • CH206867A - Collapsible umbrella frame. : de en
  • US2171249A - Cathode for electron discharge devices : en
  • FR845556A - Hydraulic shock absorber for motorcycle forks : en fr
  • GB512372A - Improvements in and relating to packings between the crank-case and the crank-shaft of two-stroke internal combustion engines : en
  • DE680352C - Device for automatically switching back electrically operated direction indicators on motor vehicles : de en
  • GB512056A - Improvements relating to prepayment meters : en
  • GB512189A - Improvements in the manufacture and production of vat dyestuffs : en
  • GB512158A - Improvements in collapsible metal tubes : en
  • FR845746A - Self-regulating electrical system applicable to alternating current : en fr
  • GB512392A - Improvements in or relating to firearms : en
  • DE680610C - Electron tubes with a cathode heated indirectly by heat radiation : de en
  • FR845786A - Device for shaping curved sheets of glass or other materials, in particular with a view to tempering, and installations comprising an application : en fr
  • GB512156A - Improvements in or connected with high capacity electric fuses : en
  • GB512230A - Improvements relating to heat-exchanger cores, particularly for motor-vehicle radiators : en
  • US2171141A - Ingot ejector : en
  • US2171232A - Material treating apparatus : en
  • US2171332A - Hair curling device : en
  • US2171474A - Etching apparatus : en
  • GB512149A - Improved process and apparatus for the reclaiming of used lubricating oils : en
  • FR845729A - Hemorrhoidal plaster : en fr
  • DE680373C - Arrangement for setting an extreme value : de en
  • DE680497C - Resilient socket formed from sheet metal : de en
  • FR845644A - Shock and vibration damper : en fr
  • US2171289A - Vehicle brake : en
  • DE653804C - Device, in particular for thermostatic control of the coolant circulation alternately through the cooler or through a short-circuit line, for internal combustion engines of motor vehicles : de en
  • FR845590A - Method of construction of walls, floors, doors, etc., elements allowing its implementation and walls of all kinds established by this process : en fr
  • USD116345S - Design for a cake box : en
  • FI18580A - Anordning vid pressar : en fi
  • GB512143A - Improvements in copper base alloys : en
  • DE680534C - Device to avoid the entry of false air in rolling mill furnaces, in particular push-through furnaces : de en
  • AU16339A - Improvements in and relating tothe operation of vertical carbonising retorts : en
  • FR845743A - slab element : en fr
  • USD116435S - Design for a dress : en
  • FR845774A - Improved method and device for bending pipes, bars, sheets and other parts : en fr
  • US2170805A - Photographic emulsion containing dyes from benzoxazoles : en
  • US2171160A - Plant husbandry apparatus : en
  • US2171202A - Method of recovering fatty acids : en
  • US2171399A - Method and apparatus for homogenizing powdered mixtures : en
  • DE680314C - Circuit arrangement for telephone systems : de en
  • DE680600C - Net harrow for straight pull : de en
  • PL28645B1 - Simmonds Development Corporation Limited, London. Quick-action plate connector. : en pl
  • DE680376C - Refining machine for chocolate masses with a mass drum : de en
  • GB512313A - Improvements in or relating to the electrical precipitation of suspended particles from a stream of gas : en
  • GB512327A - Improvements in or relating to thermionic valve circuits : en
  • GB512306A - Improvements in shuttle guards for weaving looms : en
  • US2170877A - Venetian blind : en
  • US2171091A - Streamline body for motor vehicles with air-cooled rear engines : en
  • PL28892B1 - N. V. Philips' Gloeilampenfabrieken, Eindhoven. / High frequency amplifier transmitting a very wide frequency band. : en pl
  • GB512176A - Improvements in, and connected with, removable contact arrangements for electric switches : en
  • DE680297C - Device for the automatic maintenance of an alternating voltage : de en
  • AU108316B2 - An improved automatic stoker for furnaces : en
  • CA383714A - Liquid fuel burner : en fr
  • FR845760A - Process for preparing gas and vapor absorbing bodies : en fr
  • DE680582C - Device for separating relatively stiff, vertically stacked workpieces by means of cyclically operating suction cups : de en
  • GB512027A - Coin operated vending machine : en
  • GB512289A - Soap tablets : en
  • GB512280A - Improvements in means for securing glazing in metal window frames : en
  • GR8457B - METHOD FOR THE MANUFACTURE OF DIPHENYLSULPHONE PRODUCERS. : el en
  • GB511939A - Improvements in and relating to machine gun locks : en
  • FR845744A - Separator for electric accumulators : en fr
  • FR845663A - Camera : en fr
  • GB511981A - Improvements relating to window opening and closing mechanisms : en
  • DK56592C - Liquid filter. : da en
  • FR845751A - Navigation watch device : en fr
  • DE680526C - Monitoring device for electrically driven direction indicators for motor vehicles : de en
  • PL28822B1 - : en pl
  • US2171025A - Rake tooth construction : en
  • AU487738A - Improvements in neckties and linings therefor : en
  • US2170947A - Manufacture of rubber articles : en
  • US2170841A - Interchangeable utility bag : en
  • PL28759B1 - : en pl
  • PL28929B1 - from the borehole. : en pl
  • US2170810A - Machine for forming cold wrought products : en
  • US2171477A - Counter transfer and clearing : en
  • US2171495A - Ethers of polyhydroxy halogenated phenols : en
  • DE680621C - stocking : de en
  • PL28618B1 - Telefunken Gesellschaft fiir drahtlose Telegraphie m. B. H., Berlin. Amplifier with adjustable gain. : en pl
  • PL28885B1 - : en pl
  • SU55464A1 - Method of making electric carbon brushes : en ru
  • CH206821A - Pressure nipple for watertight cable glands, in particular on electrical installation material made of insulating material. : de en
  • GB512001A - Manufacture of polymeric vinyl alcohols and partial derivatives thereof : en
  • US2170939A - Windshield wiper clip : en
  • US2171175A - Collapsible tube closure : en
  • US2171181A - Metal feeding apparatus : en
  • US2171240A - Blow-off valve : en
  • USD116351S - Design for a coat : en
  • AU60239A - Improvements in monolithic structures : en
  • US2170953A - Paper cut-out : en
  • US2171022A - Indicator : en
  • US2171277A - Method of fur dyeing : en
  • GB512163A - Improvements in or connected with lifts and the like : en
  • GB512004A - Improvements in, or relating to, reinforced ebonite or similar tubes, and in the manufacture or production thereof : en
  • GB512077A - Improvements in fluid-operated piston devices for use particularly in catapults for the launching of aeroplanes : en
  • GB512127A - Improvements in pyrophoric lighters : en
  • GB512394A - Improvements in brass wind instruments : en
  • DE680473C - Electromagnetic switching device insensitive to shock loads : de en
  • USD116404S - Design for a dress : en
  • FR845782A - Roadside mower : en fr
  • PL28846B1 - Hermann Kurt Weihe, Berlin. Hydraulic braking device, especially for motor vehicles. : en pl
  • FR845674A - Automatic plow cutter : en fr
  • US2170850A - Target toy : en
  • US2171329A - Rain detecting means : en
  • DE680483C - Air bomb for coal dust explosions : de en
  • US2170812A - Frequency modulation : en
  • PL28841B1 - Device for compensating the variable frictional resistance of metal strips at welded pipe mills. : en pl
  • PL28863B1 - A method of producing protective layers on light metals and their alloys. : en pl
  • PL28866B1 - Device for carrying tens. : en pl
  • US2171460A - Deep well motor pump : en
  • GB512264A - Improvements in and relating to photographic cameras : en
  • FR845603A - Method and device for fixing conductor cables in lugs : en fr
  • SU55534A1 - Multi-spindle automatic tapping machine : en ru
  • US2171006A - Manufacture of ceramic tubing : en
  • USD116340S - Design fob a finger ring : en
  • FR845779A - Valve or shutter control : en fr
  • GB512138A - Improvements in or relating to windscreen wipers : en
  • DE680593C - Device for switching off the striking mechanism of the clock mechanism with manually triggered striking mechanism : de en
  • PL28878B1 - "Arwogaz" Fabryka Gazomierzy, Wodomierzy i Armatur Spólka Akcyjna in Poznań, Poznan. A dry multi-chamber gas meter with movable diaphragms. : en pl
  • US2171310A - Shoehorn : en
  • CH206777A - Method and device for joining leather straps and other pieces of leather. : de en
  • FI18589A - Stavformigt hålformskrut : en fi
  • DE680527C - Overlay lock with cover box made of plastic to be put over it : de en
  • FR845653A - Process for reducing the ability of cellulose products to retain water : en fr
  • FR845555A - Safety bolt : en fr
  • GB512359A - Improvements in or relating to trolley pole bases for overhead electric traction vehicles : en
  • GB512368A - Process and apparatus for the coking of pitch : en
  • GB512398A - Improvements in or relating to sectional scaffolds : en
  • US2171335A - Slider : en
  • US2171428A - Composition of matter : en
  • USD116339S - Design for a reflector signal device : en
  • US2171486A - Sealing wax applicator : en
  • GB512231A - Locking device for nuts, bolts and screws : en
  • GB512259A - Improvements relating to water level indicators for boilers and the like : en
  • GB512032A - Improvements in or relating to biers for hearses : en
  • US2171154A - Radio receiver : en
  • PL28848B1 - A method of producing a stable product that shortens the duration of hemorrhage. : en pl
  • US2171003A - Strip feeding and aligning mechanism : en
  • DE680612C - Flat weft knitting machine for the production of a stocking in one operation : de en
  • FR845734A - Non-combustible insulated cables and wires : en fr
  • GB512181A - Improvements relating to auxiliary apparatus for use in dentistry : en
  • GB512345A - New or improved method of and apparatus for bending metal pipes and tubes : en
  • US2171002A - Furnace : en
  • DE680419C - Device for grinding diamonds or the like to dust : de en
  • DE680507C - Control device for improving the power factor in electrical networks : de en
  • FR845626A - : fr
  • AU108271B2 - Improvements in or relating to interelectrode neutralization of frequency convertors suitable for use in superheterodyne radio and like receivers : en
  • AU127939A - Locomotive boiler fireboxes : en
  • CH199610A - Circuit for television transmitters for generating synchronous characters. : de en
  • CH206789A - Elastic joint connection. : de en
  • AU108335B2 - Process forthe manufacture ofa dough admixture and baked foods using such dough admixture : en
  • US2171287A - Oil well pumping transmission : en
  • US2171466A - Vehicle parking device : en
  • AU2639A - Improvements in or relating to electric discharge tubes : en
  • CH206772A - Tool with a number of cutting tool bodies. : de en
  • PL28769B1 - Steering device for trailers. : en pl
  • PL28855B1 - Polish Light Bulb "Osram" Spółka Akcyjna, Warsaw. 'Electric reflector bulb. : en pl
  • PL28628B1 - Preparation Industrielle des Combustibles, Nogent-sur-Marne. A binder with one toothed roller. : en pl
  • PL28913B1 - Alex. Friedmann, Wieden. Distributor for grease. : en pl
  • PL28862B3 - Device for coating internal surfaces of pipes. : en pl
  • US2170933A - Continuous duty x-ray unit : en
  • CA383684A - Fuse cutout : en fr
  • US2170914A - Rigging : en
  • US2171102A - Duplex machine for blocking and pressing hats : en
  • CH206885A - Internal combustion engine system, in particular for vehicles, with a display device consisting of a speedometer and wattmeter for the power and speed of a generator coupled to the internal combustion engine. : de en
  • US2170834A - Process for the dehydration of lower fatty acids with ketones and ethers : en
  • US2171039A - Mechanism for molding material : en
  • US2171397A - Plant protector : en
  • GB512096A - Improvements in the sealing of shafts : en
  • FR845565A - Expansion turbine for deep cooling systems : en fr
  • FR845658A - Discharge-fluid tubular steam generator with intermediate superheater heated by flue gases : en fr
  • FR845702A - Reversal mechanism : en fr
  • US2170962A - Means for photoelectrically scanning balanced sound records : en
  • US2171076A - Multiple clamp : en
  • GB512395A - A process for desulphurising mineral oils : en
  • PL28627B1 - Mixed hard metal carbide alloy and method of producing it. : en pl
  • US2170951A - Continuous power eccentric dual gear speed reducer : en
  • US2171040A - Composite sheet metal body and method of producing the same : en
  • US2171224A - Cathode ray tube : en
  • US2171048A - Circuits for more nearly perfect sound reproduction : en
  • DE680394C - Process for separating nickel from other heavy metals : de en
  • GB512287A - Improvements in means for supplying cooling air to the engines of rear engined motor vehicles : en
  • PL28707B3 - Oaznik for internal combustion engines. : en pl
  • US2171105A - File case : en
  • DE680498C - Banana plugs : de en
  • FI18585A - The aid is granted on a first-come, first-served basis : en fi
  • DE680538C - Self-starting synchronous small motor, low speed : de en
  • GB512015A - Improvements in or relating to chamfering machines for shaping the ends of gear teeth : en
  • GB512203A - A process for the production of stable calcium sodium lactate solutions suitable forinjection : en
  • CH206662A - Fish tape. : de en
  • FR845787A - Device for transmitting electrical signals using an unstable oscillator : en fr
  • PL28926B1 - A device for the production of profiles by pulling strips or metal bars between shaping rolls. : en pl
  • US2171122A - Hair curler : en
  • US2171454A - Combination storm and screen sash : en
  • PL28830B1 - A method for uniformly feeding a device for processing a raw material, e.g. carbon rinsing, and an apparatus for applying the method. : en pl
  • AU108308B2 - Arrangements for syphon rinsing devices for rinsing with different quantities of water : en
  • AU309538A - Improvements relating tothe heating of water andother fluids : en
  • GB511969A - Improvements in and relating to aircraft : en
  • DE680402C - Transfer device in front of thermal fences : de en
  • FR845654A - Process for preparing from viscose cellulosic wool having a crimped character similar to that of wool : en fr
  • GB512399A - Improvements in or relating to lathe chucks : en
  • GB512241A - Improvements in or relating to magnetic separators : en
  • US2170930A - Transmission apparatus : en
  • AU108553B2 - Improvements relating to built up steel truss roof members : en
  • CA383641A - Bentonite activating process : en fr
  • CH206646A - Parquet floor. : de en
  • CH206891A - A device for controlling the movements of ailerons, rudders, flaps and similar control surfaces on aircraft. : en fr
  • PL28626B1 - Marian Zmuda, Radlin. Arrangement of a roll for belt conveyors. : en pl
  • DE680492C - Process for the production of basic copper salts : de en
  • CA383609A - Lawn mower trailer : en fr
  • GB512039A - Improvements in or relating to knitting machines with electrically controlled parts : en
  • AU411538A - Improvements relating to television transmission and to methods of reducing or eliminating thed. C. and low frequency components in television waves : en
  • GB512048A - Improvements in or relating to automatic lighters : en
  • US2171230A - Insulating coating : en
  • US2171346A - Power plant : en
  • AU108310B2 - Improvements in or relating to can openers : en
  • US2171448A - Buckle : en
  • US2171148A - Superregenerative receiver : en
  • PL28671B1 - Method of storing coal. : en pl
  • PL28684B1 - Wladyslaw Heinrich, Krakow. A device for producing stereoscopic cinematographic images which, when viewed directly, give a plastic impression. : en pl
  • GB512068A - Improvements relating to float-controlled valves : en
  • PL28741B1 - Nils Anders Georg Sóderlind, Stockholm. Device for opening letters. : en pl
  • USD116398S - Design for a dress : en
  • BE434230A - : en
  • US2171056A - Snow plow : en
  • CA383749A - Re-fill fuse plug : en fr
  • CH206739A - Stenoblock. : de en
  • US2171357A - Frog and point switch for miniature railway tracks : en
  • US2171480A - Flow device : en
  • US2171042A - Vehicle stand and guard : en
  • US2171455A - Slider for hookless fasteners : en
  • US2170806A - Merocyanine dyes containing a thionaphthenone nucleus : en
  • US2170898A - Stabilized coupler for tractor drawn trailers : en
  • US2170975A - Water-treating apparatus : en
  • US2171012A - Hose supporter : en
  • US2171055A - Belt and belt connector : en
  • FR845639A - Control arrangement of fans of air-cooled motors : en fr
  • US2171139A - Regenerative radio receiver : en
  • CH206869A - Protective device for wristwatch. : en fr
  • AU108339B2 - Improvements relating tothe heating of water andother fluids : en
  • US2171239A - Refrigerator heat interchanger : en
  • AU575538A - Improved burr gathering machine : en
  • US2171451A - Rake attachment for cultivators : en
  • USD116337S - Design fob a jewelry setting ob : en
  • CA383717A - Freight transferring apparatus : en fr
  • US2171264A - Ice cubing machine : en
  • DE680489C - Process for the production of a polishing compound which is paste-like at room temperature : de en
  • CA383680A - Electric valve converting system : en fr
  • US2170899A - Telephone system : en
  • AU108576B2 - Improvements relating to television transmission and to methods of reducing or eliminating thed. C. and low frequency components in television waves : en
  • AU515738A - Improvement in underfired coke ovens : en
  • CH206640A - Method of promoting plant growth. : de en
  • DE680383C - Shearing machine with measuring roller attached to the chain tree winding : de en
  • CH206849A - Frame to accommodate stretchers. : de en
  • US2171067A - Plant setter : en
  • DE680692C - Steering device on wagon trains with a multi-axle trailer car with steerable wheels : de en
  • CH206814A - Cooling device switched on in a water pipe. : de en
  • USD116420S - Design fob a textile fabric ob : en
  • CH206911A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • PL28693B1 - MKPFHc 9 / OH Mechanical time fuse for artillery shells. : en pl
  • DE680603C - Process for producing rasterized images : de en
  • US2170909A - Game : en
  • US2171303A - Resonant vibration fatigue tester : en
  • US2171494A - Hydroxy halogenated benzene derivatives and uses therefor : en
  • US2170912A - Luminaire : en
  • AU108560B2 - Braking mechanism : en
  • CH206665A - Automatically charged and adjustable fine coal firing. : de en
  • CH206890A - Coupling for connecting two wheels of a drive, which are mutually movable in all directions, especially for electrically operated rail vehicles. : de en
  • PL28784B1 - h £ P FM% L t / 00 Marc Birkigt, Bois-Colombes. Impact fuse, particularly suitable for small-caliber projectiles. : en pl
  • US2171195A - Method of joining the edges of metal bands or the like : en
  • US2171243A - Frequency control system : en
  • US2170887A - Flap device : en
  • DK56604C - Method for Preparing Durable, Neutral Solutions of the Hypoglycemic Hormone of the Pancreatic Gland. : da en
  • PL28615B1 - : en pl
  • DE680475C - Electric high pressure vapor discharge lamp with quartz vessel : de en
  • FR845691A - Process for the preparation of high molecular weight polyamides capable of being transformed into fibers : en fr
  • GB512058A - Improvements in and relating to coil winding machines : en
  • GB512126A - Improvements in door closing and checking appliances : en
  • PL28901B1 - : en pl
  • DE680577C - Blind dimming device : de en
  • GB512410A - Improvements in or relating to floors for ice rinks : en
  • GB512175A - Improvements in or relating to joints for tubes : en
  • GB512382A - Improvements in and relating to vacuum cleaners : en
  • GB512408A - A process for producing isobutane from normal butane : en
  • CA383692A - Duplicating apparatus : en fr
  • PL28715B1 - A method of producing elongated objects from plastic materials. : en pl
  • PL28799B1 - Screw cap recessed into windows or doors. : en pl
  • PL28808B1 - : en pl
  • US2171082A - Metallic abrasive : en
  • CA383637A - Hair net : en fr
  • CH206842A - Device for operating two or more arc lamps fed from a rectifier, in particular for projection purposes. : de en
  • US2171093A - Adaptable rail trolley : en
  • USD116417S - Design for a dress : en
  • CH206658A - Ring fusion between a ceramic and a metallic part. : de en
  • CH206903A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • PL28762B1 - Hazeltine Corporation, Jersey City, New Jersey. Coupling system. : en pl
  • PL28891B1 - Vereinigte Eisenbahn- Signalwerke JJ ^ 'U Gesellschaft mit beschrankter Haftung, Berlin-Siemensstadt. Cylinder positioner for electrical safety devices in railway traffic. : en pl
  • PL28710B1 - 0. Lorenz Aktiengesellschaft, Berlin-Tempelhof, \\ 0U 9fft? High frequency vibration modulation system. : en pl
  • PL28720B1 - A method of producing pure magnesium compounds, especially magnesium chloride. : en pl
  • US2171319A - Glazing bar : en
  • USD116355S - Design for a textile fabric or similar : en
  • CH206811A - Ignition device for explosion engines. : de en
  • AU145639A - Improvements in or relating to method of facing walls, building blocks and parts thereof : en
  • CH206759A - Electrical power meter. : de en
  • CH206831A - Installation circuit breaker with magnetic and thermal release. : de en
  • CH206880A - Anti-slip compound that can be applied to tires, shoe soles, etc. : de en
  • CH206724A - Process for the preparation of a water-soluble azo dye. : de en
  • CH206907A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • DE680613C - Flat weft knitting machine : de en
  • CA383706A - Titanium iron ore processing : en fr
  • US2170892A - Magnetogenerator : en
  • US2171187A - Dustpan : en
  • US2171507A - Method of calcining lime : en
  • CA383737A - Windshield cleaner : en fr
  • CH206736A - Method and device for softening boiler feed water. : de en
  • CH206787A - Process for the production of a ball joint on piston rods with a one-piece ball socket. : de en
  • CH206862A - Voter facility. : de en
  • AU356039A - Improvements inthe manufacture and production of liquid or solid hydrocarbons or liquid or solid oxygen-containing derivatives of hydrocarbons : en
  • CH206716A - Process for the representation of diketones. : de en
  • CH206882A - Stud chain mounted on tires of carts for driving on soft ground. : de en
  • PL28663B1 - Device for changing the collector brushes of pre-firing motors, regulated by shifting the brushes. : en pl
  • PL28632B1 - Fuel for portable heaters. : en pl
  • PL28748B1 - Device for injecting fuel into internal combustion engines. : en pl
  • US2171014A - Spark plug : en
  • DE680320C - Printing table for booking machines : de en
  • GB512018A - Improvements in and relating to multi-position electric switches : en
  • US2171316A - Multiple-way valve : en
  • US2171331A - Electric cord assembly for vacuum cleaners or the like : en
  • CH206786A - Self-locking nut. : de en
  • SU55484A1 - Device for recording impulses transmitted : en ru
  • US2171406A - Spiral rolling generating process for bevel gears and apparatus therefor : en
  • CA383677A - Electric valve system : en fr
  • PL28889B1 - John Leslie Haughton, Teddington, and William Eliezer Prytherch, Teddington. Magnesium alloy. : en pl
  • US2171515A - Method and apparatus for size reduction : en
  • USD116390S - Besign fob a cooking range : en
  • US2171343A - Car coupling : en
  • DE680331C - Electric motor drive for machine tools, especially for milling machines : de en
  • GB512215A - Methods of producing pharmaceutical preparations adapted for the treatment of chronic morphine and like poisoning : en
  • CH206730A - Method for eliminating the unpleasant odor attached to nigrosines and indulins. : de en
  • CH206770A - Device for pressing the can fold of folded cans. : de en
  • PL28636B3 - : en pl
  • PL28890B1 - A device for obtaining oxygen needed to rescue people who are poisoned by gases. : en pl
  • US2171302A - Gasketed fitting : en
  • PL28701B1 - Tool for folding and sharpening pencils. : en pl
  • US2171124A - Magnetic impulse contactor : en
  • PL28786B1 - A method of joining the two ends of an audio film, consisting of a middle layer that serves as an audio carrier and two outer gelatin layers. : en pl
  • GB512002A - Improvements in and relating to the production of rayon yarn : en
  • GB512387A - Improvements in or relating to process of reclaiming waste sands : en
  • US2170845A - Cellulosic structure and method for preparing same : en
  • AU108567B2 - Improvements in screw type fluid propelling apparatus : en
  • PL28795B1 - : en pl
  • US2171197A - Process for purification of laundry waste : en
  • PL28854B3 - Robert Bosch Aktiengesellschaft, Stuttgart. Starter for internal combustion engines. : en pl
  • PL28609B1 - A method of two point welding without opposing electrodes and an apparatus for using the method. : en pl
  • US2170883A - Photographic masking : en
  • CH206825A - Bipolar circuit breaker with maximum intensity with electromagnetic arc blowing. : en fr
  • US2171469A - Automobile : en
  • AU108538B2 - Improvement in belt construction : en
  • CA383628A - Stocking protector : en fr
  • CA383707A - Olefine ketone and alcohol manufacture : en fr
  • US2171118A - Method of covering tennis balls : en
  • US2171270A - Collar fastener : en
  • PL28861B1 - A method of coating the inner surfaces of pipes and a device for applying this method. : en pl
  • AU108326B2 - Improvements in gas-tight seals whereby electric conductors pass into a vitreous envelope : en
  • PL28650B1 - Kazimierz Wincenty Wegrzecki, Warsaw, Waclaw Aleksander Wegrzecki, Warsaw and Ryszard Tadeusz Wegrzecki, Warsaw. Welding torch protective cover. : en pl
  • FR845784A - Improvements in the manufacture of electrical conductors : en fr
  • US2171170A - Wheel structure : en
  • USD116392S - Design for a service station : en
  • US2170807A - Merocyanine dyes from barbituric acids : en
  • US2171450A - Means for detecting ice forming conditions, particularly when encountered by aircraft : en
  • DE680460C - Sheet delivery device : de en
  • FR845700A - Internal combustion engine with injection : en fr
  • CH206919A - Process for the production of a vat dye. : de en
  • PL28706B3 - MKP F4Jla 4/00 Akciova spolecnost dfive Skodovy zavody v Plzni, Prague and Bohdan Pantoflicek, Pilzno. Impact fuse. : en pl
  • DE680551C - Electric cathode glow lamp with more than two electrodes : de en
  • PL28740B1 - Wilhelm Koreska, Vienna. Typewriter ribbon with a strip that serves as a reservoir of paint. : en pl
  • AU174339A - Improvements in and relating to regulating transformers : en
  • PL28894B1 - Radio Corporation of America, New York, n. Y. ° Radio receiver with automatic selectivity control. : en pl
  • PL28780B1 - Victor Vertnik, Maribor. Os. For carts. : en pl
  • GB512161A - Improvements in or relating to surgical trusses : en
  • DE680462C - Device for remote switching through voltage reduction or interruption on the lines used for normal energy transmission : de en
  • US2170918A - Control for multiunit power generating systems : en
  • USD116426S - Design for a hat : en
  • US2171358A - Hollow panel : en
  • US2171299A - Golf ball teeing device : en
  • PL28803B1 - A method of drying the materials and an apparatus for carrying out the method. : en pl
  • US2171051A - Folding paper box : en
  • USD116380S - Design for a coffee maker : en
  • USD116414S - Design for a dress : en
  • GB512168A - Fixing socket for use with building structures of cement, concrete, or similar materials : en
  • PL28666B1 - Tatra-Werke, Automobil- und Waggonbau A. G., Prague-Smichov. The layout of the drive unit in cars. : en pl
  • DE680514C - Sand preparation machine : de en
  • FR845629A - Improvements to compositions for printing or decorating textile fabrics : en fr
  • US2171189A - Chair : en
  • US2170973A - Belt fastener : en
  • PL28731B3 - Device for self-regulation of additional emulsion air in gas nozzles of combustion engines. : en pl
  • CH206686A - Diazo preparation. : de en
  • GB512141A - Improvements in or relating to radio receiving sets : en
  • GB512373A - Improvements in or relating to the circulation of liquid in photographic baths : en
  • AU108291B2 - Improvements in or relating to furnaces fed with solid fuel by gravity froma hopper adjacent the grate : en
  • CA383667A - Sewing machine : en fr
  • CH206769A - Sheet metal strip for the manufacture of seamed sealed containers. : de en
  • US2171372A - Mechanical fish-luring device : en
  • AU333838A - Method of and apparatus for vaporising and diffusing fumigant : en
  • US2171387A - Mop wringer : en
  • SU55507A1 - Internal grinding method : en ru
  • US2170913A - Car wall anchorage for cargo binders : en
  • US2171473A - Braking mechanism : en
  • US2171036A - Breaker strip and fitting : en
  • GB512159A - Improvements in and relating to apparatus for producing ground and polished glass strip : en
  • GB512390A - Process for producing anhydrous magnesium chloride from magnesium chloride lyes or higher magnesium chloride hydrates : en
  • US2170983A - Trailer hitch : en
  • PL28712B1 - A method of producing color cells for zipper closures and a device for carrying out this method. : en pl
  • US2171089A - Vehicle lighting unit : en
  • CA383674A - Display stand : en fr
  • CH206807A - Starting device for internal combustion engines. : de en
  • CH206923A - AC switching device for synchronous switching. : de en
  • PL28699B1 - : en pl
  • SU55563A1 - The method of obtaining the carrier frequency : en ru
  • US2171199A - Process for purification of laundry waste : en
  • US2171086A - Preparation of gold films : en
  • CH206706A - Method and device for separating mixtures. : de en
  • PL28610B1 - Fried. Krupp Grusonwerk Aktiengesellschaft, Magdeburg-Buckau. Foam device for interaction with a stirrer. : en pl
  • US2171403A - Brake mechanism : en
  • AU349738A - Improvements in or relating to automatic hunting switch or like circuit arrangements for use for example in telephone systems : en
  • US2171229A - Process for manufacturing cast bearings from light metal alloys : en
  • USD116383S - Design fob a display rack : en
  • CH206920A - Small caliber projectile. : en fr
  • US2171200A - Method of recovering fatty acids : en
  • US2171305A - Vulcanization of rubber : en
  • US2171342A - Fan casing : en
  • US2171143A - Thick butt shingle : en
  • CH206672A - Table-like furniture, in particular for sewing machines. : de en
  • CH206732A - Process for the production of an indigoid vat dye. : de en
  • CH206641A - Cattle chain lock. : de en
  • CH206798A - Capsule compressor. : de en
  • US2171035A - Display rack : en
  • US2171013A - Folding baby carriage : en
  • US2171030A - Automobile truck : en
  • USD116369S - Design for a typewriter frame : en
  • CA383615A - Pleated crepe forming machine : en fr
  • CH206651A - Riflemen with lower and upper rifle boards. : de en
  • CA383638A - Electric circuit control : en fr
  • CA383687A - Aldehyde catalytic oxidation : en fr
  • AU108132B2 - Synthesis of higher aliphatic hydrocarbons : en
  • DE680478C - Process for the production of rubber conversion products by treating rubber solutions with halogen compounds of amphoteric metals : de en
  • FR845711A - Process for the manufacture of stockings or other similar hosiery, and hosiery made by this process : en fr
  • DE680471C - Radio receiver installed in motor vehicles : de en
  • FR845554A - New condensation products and their industrial uses : en fr
  • FI18570A - Ice cream storage cabinet : en fi
  • FR845641A - Cooling device for cinematographic projection devices : en fr
  • BE435574A - : en
  • CH206744A - Writing tape with reel for typewriters, cash registers and the like. : de en
  • CA383697A - Television projection apparatus : en fr
  • FR845561A - Spherical joint and its manufacturing process : en fr
  • GB512165A - Improvements relating to apparatus for conditioning or purifying air by means of high tension electric discharge : en
  • GB512182A - Improvements in the manufacture and production of oxidation products of olefine glycols : en
  • GB512190A - Improvements in automatic stabilizing devices for aircraft : en
  • GB512379A - Improvements in water-cooling systems for underfeed stokers : en
  • PL28711B1 - 0. Lorenz Aktiengesellsohaft, Berlin-Tempelhof. Electric capacitor. : en pl
  • US2171147A - Method of and apparatus for controlled air conditioning : en
  • AU108284B2 - Suspension apparatus for sliding sash windows : en
  • AU108295B2 - Improvements in monolithic structures : en
  • AU50439A - Method of treating seeds and cereal grains : en
  • CH206667A - Process for removing carbon oxide by converting it into carbonic acid by means of steam in the presence of a catalyst from purified fuel gases. : de en
  • CH206697A - Pinch mouthpiece on pinch machines. : de en
  • DE680563C - Propeller with automatically adjustable wing adjustment : de en
  • PL28857B1 - A method of producing condensation products from heterocyclic compounds with a five-ring ring system and an aldehyde. : en pl
  • CA383623A - Stopper for bottles and jars : en fr
  • CA383740A - Delay action electro-responsive device : en fr
  • AU384138A - Improvements in or relating to collapsible tubes orthe like containers : en
  • AU108279B2 - Improved construction of flanged-beam frames for motor trailers andother vehicles : en
  • AU108563B2 - An improved tray : en
  • PL28785B1 - Robert Pollak, Vienna. Flexible bicycle chain, the links of which are made of plates, connected by rollers, and the drive wheel for this chain. : en pl
  • PL28789B1 - A method of obtaining cellulose from stalks of lyophilic plants. : en pl
  • PL28733B1 - I. G. Farbenindustrie Aktiengesellschaft, Frankfurt n. M. Solid fuel for driving internal combustion engines. Priority: September 11 : en pl
  • US2170890A - Removable accumulator : en
  • PL28623B1 - Arkadiusz Piekara, Rydzyna. Device for converting direct current into higher voltage direct current. : en pl
  • AU400838A - An improved pulverizer for animal droppings : en
  • CH206876A - Device for the automatic control of speed change transmissions on motor vehicles. : de en
  • GB512278A - A new or improved device for use in handling or manipulating wheels of motor lorries or the like : en
  • CH206866A - Holding device for shafts and the like, in particular for the display of goods. : de en
  • PL28678B1 - Mieczyslaw Pluta - Czachowski, Katowice and Aleksander Cebula, Wieliczka. Medical bank. : en pl
  • US2171273A - Adjustable thermostatic switch : en
  • USD116391S - Design for a textile fabric or : en
  • USD116416S - Design fob a textile fabric : en
  • CA383670A - Paper machine wire support : en fr
  • US2171475A - Method of fixing cloth finishes : en
  • GB512070A - Improvements in the weaving of pile fabrics : en
  • FR845747A - Torque transformer device for motion transmissions : en fr
  • FR845689A - Method of manufacturing a material suitable for making protective clothing : en fr
  • GB512083A - Improvements in gasfilled electric incandescent lamps : en
  • AU108285B2 - Hydraulic disruption of solids : en
  • GB512069A - Method of and apparatus for the production of stockings with french heel and french foot on straight bar knitting machines : en
  • GB512312A - Improvements relating to electric distribution systems : en
  • GB512283A - Improvements in and relating to yarn feeding mechanism : en
  • US2171211A - Machine for grinding articles to predetermined forms : en
  • USD116406S - Design for a dress : en
  • GB512022A - Manufacture of substances of capillary action : en
  • GB512326A - Improvements in or relating to knife sharpeners : en
  • AU108334B2 - Synthetic contact masses and their preparation : en
  • CH206803A - Two-stroke internal combustion engine with direct current purging. : de en
  • US2171061A - Duplicating machine : en
  • US2171351A - Lightning arrester : en
  • PL28612B1 - Ringhoffer - Tatra- Werke A. G., Prague. The crane is especially applicable to motor vehicles. : en pl
  • USD116423S - Design for a dress : en
  • CH206733A - Process for the production of carbon with the simultaneous formation of hydrogen or hydrogen-containing gases. : de en
  • GB512286A - Improvements in high-pressure metal-vapour electric discharge devices : en
  • GB511952A - Improvements in and relating to sheet feeding mechanism for printing machines and the like : en
  • GB512275A - Improvements relating to loom shuttles : en
  • GB512402A - Improvements in looms having automatic weft replenishment : en
  • CH206687A - Mixture that can be used as a washing, cleaning, bleaching and washing-up liquid : de en
  • FR845748A - Improvements to the manual control of fire extinguishers : en fr
  • GB512088A - Improvements in and relating to the manufacture of azo dyestuffs : en
  • DE680575C - Separating device for the separation of minerals by means of a heavy fluid : de en
  • DK56616C - Sewing machine, preferably for Footwear. : da en
  • GB512000A - Improvements in or relating to switching arrangements for electric conductors : en
  • PL28755B1 - Aluminum alloy. : en pl
  • GB512330A - Improved liquid flow indicator : en
  • FR845609A - Heavy oil diffuser and economizer for internal combustion engines and others : en fr
  • CH206663A - Catches, in particular for doors. : de en
  • DE680678C - Method of preserving wooden poles : de en
  • PL28816B1 - A way to destroy vermin or other harmful organisms. : en pl
  • US2171344A - Bimetallic strip : en
  • FR845650A - Process for making bonded permanent magnets : en fr
  • GB512080A - Improvements in steam injectors : en
  • GB512120A - Improvements in or relating to or in connection with fire appliances : en
  • FR845756A - Device for constant and adjustable level filling of various containers : en fr
  • GB512121A - An electro-mechanical frequency compensating device for wireless transmitting and receiving apparatus : en
  • FR845693A - Copper sulphate manufacturing process : en fr
  • GB512214A - An improved bottle : en
  • FR845769A - Screen sweeper : en fr
  • FR845701A - gas scrubber containing dust, particularly blast furnace gases : en fr
  • GB512300A - Improvements in or relating to photographic cameras : en
  • GB512092A - Process and apparatus for dissloving cold swelling starch products in aqueous liquids : en
  • CH206904A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • CA383627A - Pipe and cigarette holder device : en fr
  • PL28737B1 - Robert Engler, Gelsenkirchen. Electrically heated steam iron. : en pl
  • GB511984A - New or improved means for glazing roofs : en
  • PL28680B1 - J0rgen Adolph Smith, Copenhagen. Device for the automatic phonographic transmission of an alarm initiated in a subscriber device over a subscriber telephone circuit. : en pl
  • PL28674B1 - The Bristol Airplane Company Limited, Bristol. Auxiliary regulating device for setting the gas throttle of the internal combustion engines of overhead vessels. : en pl
  • PL28681B1 - : en pl
  • PL28695B1 - A method for preventing errors caused by shrinkage of the film copies in the projection of color raster films, and an apparatus for carrying out the method. : en pl
  • PL28930B1 - Fichtel & Sachs fl. G., Schweinfurt Connection of a freewheel hub with a closed cover, equipped with a reverse brake and driven by a gear from the engine located in the vehicle's drive wheel, with the vehicle frame : en pl
  • GB512353A - Improvements in or relating to chucks for parts with screw threads : en
  • IE15901L - Tempering glass sheets : en
  • FR845572A - Receiving device for high frequency telecommunication : en fr
  • GB512205A - Improvements in or relating to photographic or cinematograph cameras coupled with photoelectric exposure meters : en
  • PL28685B1 - Landis & Gyr A.-G., Zug. An alloy bearing journal with a stone shell, especially for electrical measuring instruments, and an instrument with such a bearing and journal. : en pl
  • PL28770B1 - E. F. Klotz & Co. Kommanditgesellschaft, Stuttgart. Packaging for the shipment of eggs, fruit and similar products. : en pl
  • PL28775B1 - FrariZ KllÓbel jun., Wiedenbriick. Trailer coupling with a ball joint. : en pl
  • DE680558C - Card book : de en
  • DK56601C - Procedure for Manufacturing Oxide Cathodes. : da en
  • FR845714A - Closure for cans, in particular for cans of condensed milk : en fr
  • FR845770A - Further training in modulation expanders : en fr
  • GB512370A - Improvements in and relating to lock-nuts : en
  • US2170935A - Amusement device : en
  • GB512288A - Improvements in or relating to devices for the uniform moistening of fabric or paper webs : en
  • PL28843B1 - A method of determining the position of a receiving device in relation to a rotating beacon transmitting several beacons and beacons, and a receiving device for determining its position in this way. : en pl
  • US2171267A - Electric switch : en
  • DE680408C - Statoscope or ascent and descent speed meter : de en
  • DE680506C - Installation on electrical fall stirrup regulators : de en
  • DE680625C - Yarn knitting machine : de en
  • CH206642A - Masonry. : en fr
  • CH206743A - Typewriter. : en fr
  • DK56593C - Procedure for the manufacture of high-boiling hydrocarbon products from carbonaceous materials. : da en
  • GB512177A - Improvements in or relating to bath overflow connections : en
  • FR845730A - Thruster for air and sea vessels : en fr
  • FR845752A - Mode of recovery of the dynamic energy absorbed by the slowing down of a rotating organ : en fr
  • GB512021A - Improvements in means for locking or securing pivot pins for the valve gear of internal combustion engines : en
  • GB512411A - Improvements in or relating to dust collectors : en
  • DE680543C - Cutting device for venting extrusions, clay cutters or the like. : de en
  • GB512041A - Improvements in or relating to boots, shoes, sandals and the like : en
  • DE680424C - Process for the production of drying oil paints with a high pigment content : de en
  • GB512061A - Improvements in the photographic production of designs for use in jacquard mechanism : en
  • IE15780L - Wired radio system : en
  • GB512087A - Improvements relating to means for securing curtain rails to supporting brackets : en
  • FR845631A - Surge Drainage Device : en fr
  • FR845712A - Improvements to variable-pitch aerial propellers : en fr
  • FR845742A - Projectile belt : en fr
  • GB512318A - Improvements in or relating to gaseous electric discharge devices : en
  • USD116336S - Design fob a belt buckle : en
  • USD116428S - Design for a dress : en
  • DE667667C - Blind stitch sewing machine with alternating short and long diver stroke : de en
  • GB512085A - Improvements in or relating to the remote control of radio receivers : en
  • FI18583A - Variables are used for the transport of bicycles : en fi
  • DE680525C - Device for increasing the maximum lift of wings : de en
  • DE680639C - Electromagnetic direction indicator, especially for motor vehicles : de en
  • DE680465C - Link connection in vehicle caterpillars : de en
  • DE680513C - Sand sling : de en
  • FR845750A - Improvements to the propulsion system of bicycles : en fr
  • GB512026A - Improvements in or relating to apparatus for the treatment of yarns and other filamentary materials : en
  • CA383712A - Boiler feeding apparatus : en fr
  • GB512401A - Endless woven, plaited or braided driving or conveyer belt : en
  • US2171511A - Press : en
  • US2170853A - Method of making pipe fittings : en
  • DE680406C - lubricant : de en
  • PL28656B1 - Fritz Bender, Geisweid. Counter-flow heat exchanger. : en pl
  • PL28709B1 - Alloy steel for the production of equipment exposed to high pressure and high temperature heat. : en pl
  • US2170977A - Rail flaw detector mechanism : en
  • US2171204A - Hydraulic hoisting unit and control system therefor : en
  • US2171345A - Parking meter : en
  • GB512003A - Improvements in apparatus for twisting filaments, threads, bands and the like : en
  • US2170869A - Power transmission : en
  • US2171231A - Electric condenser : en
  • US2170830A - Wire feed mechanism : en
  • US2170798A - Weighing scale : en
  • DE680490C - Suspension of independently guided bikes : de en
  • DE679647C - Nice of grape, fruit and berry wines and musts : de en
  • US2170915A - Collar passing pressure stripper : en
  • AU108539B2 - Locomotive boiler fireboxes : en
  • CH206638A - Motor-driven mower with cutting unit in front. : de en
  • GB512366A - An electrolytic apparatus for producing hydroxides of metals : en
  • US2171245A - Circuit breaking device for electrical alarm installations : en
  • US2170848A - Wheel balance tester : en
  • US2170986A - Carpenter's tool : en
  • US2171029A - Pneumatic tool : en
  • CH206886A - Safety device against skidding on locomotives with single axle drive. : de en
  • CH206892A - Aircraft landing facility. : en fr
  • DE680433C - Display device for electrical fuses with optical or acoustic identification message : de en
  • US2171169A - Saw file guide : en
  • US2171409A - Conditioning-yarn bobbin : en
  • AU108474B2 - Process forthe production of bituminous emulsions : en
  • CA383752A - Rotary switch assembly : en fr
  • CH206915A - Process for the preparation of a condensation product. : de en
  • GB512200A - Improved mechanism for feeding charges of articles in carton-filling machines : en
  • GB512209A - Amplifier systems : en
  • US2171479A - Well packer : en
  • PL28813B1 - Marconi's Wireless Telegraph Co. Ltd., London. 'Directional radio reception system. : en pl
  • GB512100A - Improvements in or relating to bearings and bearing housings : en
  • PL28797B1 - A method of producing artificial precalling fibers from casein. : en pl
  • US2171142A - Clearing device for beer dispensing systems : en
  • US2171228A - Christmas tree stand : en
  • CH206653A - Continuous fire vegetable stove. : en fr
  • CH206751A - Ski binding. : de en
  • CH206801A - Centrifugal pump system with an air separator on its suction side and a ventilation pump. : de en
  • DE680578C - Drive device for deep boring mills : de en
  • DK56600C - Electric Discharge Tube with Secondary Emission Electrode. : da en
  • GB511998A - Improvements in sedimentation classifiers : en
  • AU108289B2 - Improvements in process for electric flash percussive welding : en
  • CH206690A - Washing trough. : de en
  • FR845699A - Combustion chamber for diesel engines, located inside the piston : en fr
  • FR845636A - Method and devices for electric resistance welding of ball bearing cages : en fr
  • GR8460B - FAN ADJUSTABLE TO EVERY TYPE OF SEWING MACHINE. : el en
  • GB512364A - A process for desulphurising mineral oils : en
  • US2170949A - Process of preparing adhesive sheets : en
  • USD116367S - Design for a braided fabric or : en
  • DE680583C - Signal system for multi-car trains : de en
  • FR845797A - Burner for liquid fuels, with double rotating cup : en fr
  • GB511997A - Improvements in and relating to diesel engines : en
  • AU108306B2 - Improvements in or relating to collapsible tubes orthe like containers : en
  • FR845560A - Improvements in the fabrication of iron alloys and chromium-rich steels : en fr
  • FR845722A - Air filter : en fr
  • GB512341A - Improvements in or relating to drilling and analogous machines : en
  • FR845682A - Process for filling containers : en fr
  • GB512397A - Improvements in or relating to apparatus for purifying air : en
  • DE680302C - Manufacture of a pigment consisting of lithopone and zinc sulfide : de en
  • FI18575A - Anordning and förfaringssätt för framställning av förgarn, garn eller dylikt av glas- och andra fibrer och sålunda framställd produkt : en fi
  • GB512243A - Improved means for and method of treating the surface of roads : en
  • US2170966A - Fork construction : en
  • US2171266A - Water conditioner : en
  • US2171394A - Device for controlling and regulating liquid level, liquid flow, and temperature and pressure conditions thereof : en
  • US2171063A - Flametight switch housing : en
  • US2171212A - Electron discharge device : en
  • US2171291A - Combined carburetor and fume eliminator innerlock for internal combustion engines : en
  • PL28834B1 - Device for dosing liquids from the main tank. : en pl
  • DE680338C - Process for the preparation of substances with an inhibitory effect on blood coagulation : de en
  • US2171126A - Machine for making book covers : en
  • PL28642B1 - : en pl
  • CA383664A - Rock drill : en fr
  • AU530538A - Improvements in or relating to processes of curing endless belts : en
  • US2171081A - Metallic abrasive : en
  • US2170875A - Clutch control mechanism : en
  • GB512053A - Improvements in or relating to covers for baby carriages and dolls' perambulators : en
  • GB512302A - Improvements in or relating to breathing apparatus : en
  • GB512109A - Improvements in or relating to television or other signal transmission systems : en
  • FR845664A - Improvements to objectives : en fr
  • FR845721A - Adjustable hydraulic shock absorber : en fr
  • GB512016A - Devices for trueing rifle barrels : en
  • GB512325A - Improvements in or relating to thermionic oscillation generators : en
  • DE680459C - Device for the lateral alignment of sheets : de en
  • FR845634A - Improvements to cartridge bands for automatic firearms : en fr
  • IE15293L - Die-casting siphon bottle heads : en
  • GB512211A - Improvements in and relating to the supply of a heated combustible mixture to internal combustion engines : en
  • CA383756A - Sheet metal expanding apparatus : en fr
  • USD116425S - Design for a beach coat or similar : en
  • FR845594A - Dictation Machine Recording Cylinder Surface Resurfacing Machine : en fr
  • CA383632A - Tobacco curing method and apparatus : en fr
  • CH206773A - Horizontal fine boring mill. : de en
  • AU100138A - An improved machine for splitting firewood : en
  • CH206747A - Film reel. : de en
  • GB511951A - Improvements in and relating to typographical composing machines : en
  • GB511957A - Improvements in or relating to binders for sheets of paper or the like : en
  • FR845763A - Improvements to two-stroke engines : en fr
  • FR845785A - Direction indicator especially for motor cars : en fr
  • GB512378A - Improvements in and relating to non-skid treads for the pneumatic tyres of motor vehicles : en
  • GB512254A - Improvements in or relating to machines for cutting work blanks : en
  • US2170958A - Power soarer : en
  • US2171407A - Thermostatic control for multipass evaporators : en
  • FR845732A - Device for supplying engines with a gasifier : en fr
  • GB512114A - Improvements in and relating to fuel injection nozzles for internal combustion engines : en
  • DE680505C - Automatic electrical control arrangement for monitoring changing physical quantities : de en
  • CA383608A - Belting : en fr
  • US2170998A - Interlocking door structures for mine cars and like purposes : en
  • US2171241A - Silk : en
  • US2171251A - Invalid's bed-chair : en
  • DE680356C - Clay cleaner with a press hull arranged off-center in front of a rotating disc : de en
  • DE680644C - Deposit device for stick cigarette machines : de en
  • GB512342A - Improvements in or relating to casement windows, hinged doors and the like : en
  • GB512171A - Improvements in or relating to means for supplying extra air to the induction manifolds of internal-combustion engines : en
  • DK56594C - Method for carrying out addition reactions in which carbon monoxide is added at elevated temperature and pressure to organic compounds which are either alcohols or can be converted to such by hydrolysis. : da en
  • CH206810A - Rotary vane internal combustion engine. : de en
  • PL28716B1 - Elektroteohnisohe Fabrik Schmidt & Co. Gesellschaft m. B. H., Bodenbach. Lighting generator for bicycles. : en pl
  • US2171234A - Discharge device and electrode : en
  • DE680420C - Process for the separation of glazed hard stone pipes u. Like. To a desired length : de en
  • FR845551A - Direction finder without night effect : en fr
  • GB512343A - Improvements in advertising or display sign with moving inscription : en
  • CH206698A - Lid with container for milk cans. : de en
  • CH206731A - Process for the preparation of an insoluble dye. : de en
  • GB512136A - Improvements in or relating to mast aerials : en
  • CH206657A - Component and process for its manufacture. : de en
  • US2171365A - Automatic holding and releasing device : en
  • US2171065A - Builder's hardware : en
  • US2171028A - Stand for supporting light projecting or light receiving units : en
  • CA383758A - Vending apparatus : en fr
  • CH206675A - Hangers. : de en
  • DE680409C - Horse rake : de en
  • FR845670A - Improvements to ski attachments : en fr
  • FR845796A - Rotating frequency reducer, more particularly suitable for electromagnetic hammers : en fr
  • AU108532B2 - Method of and apparatus for vaporising and diffusing fumigant : en
  • GB512285A - Improvements in safety devices for trip-lock pistols : en
  • GB512301A - An arrangements for cooling solid blades for exhaust gas turbines : en
  • US2170923A - Seat track and riser : en
  • US2170927A - Mining machine : en
  • US2171496A - Parachute harness release coupling : en
  • USD116424S - Design for a dress : en
  • DE680570C - Device for roasting and roasting on a wire rack : de en
  • FI18568A - Elektriskt urladdningsrör : en fi
  • DE680515C - Device for the production of composite castings, in particular chilled cast iron rolls : de en
  • US2171005A - Speed-responsive device : en
  • GB512195A - Improvements in and relating to electric motor control systems : en
  • GB512257A - Improvements in gas-tight seals wherein electric conductors pass through quartz and like vitreous material : en
  • US2171031A - Tractor implement : en
  • US2171333A - Relay : en
  • FR845584A - Absorption refrigerator : en fr
  • US2171393A - Wind-screen wiper : en
  • GB512064A - Improvements relating to the propulsion of aircraft : en
  • GB512276A - Oil scraper rings : en
  • FR845697A - Hydraulic machine : en fr
  • GB512269A - Improvements in mudguards for wheels of perambulators, juvenile vehicles and the like : en
  • GB512273A - Improvements relating to window raising and lowering mechanism : en
  • GB512222A - Improvements in the manufacture of alloy steel tubes : en
  • GB512329A - Lathes and like machine tools for machining the bases of shells : en
  • DK56599C - Method of Manufacturing an Electric Discharge Pipe with a Secondary Emission Electrode. : da en
  • PL28904B1 - Aluminum ¦ Industrie ¦ Aktien - Gesellschaft, Neuhausen. Light metal cylinder is pressure resistant. : en pl
  • US2171027A - Arc lamp : en
  • CH206902A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • CH206840A - Method for starting up an induction furnace fed by a grid-controlled converter and operating in a resonance circuit with a capacitance. : de en
  • US2171314A - Smoking pipe cleaning device : en
  • USD116419S - Design for a dress : en
  • US2171112A - Lipstick container : en
  • AU113764B2 - Process for aromatizing hydrocarbons : en
  • US2171135A - Radio receiving circuit : en
  • US2171363A - Moisture indicator : en
  • US2171441A - Tuning condenser mounting : en
  • US2171052A - Welding shield : en
  • US2171192A - Apparatus for disconnecting pumping apparatus from a beam : en
  • AU392939A - Process for aromatizing hydrocarbons : en
  • PL28751B1 - Thermit G. m. B. H., Giswii. f \ kT \ ^ CjJW Can, especially for canning, heated exothermally. : en pl
  • DE680407C - Tubular decorative cover for flowerpots made of rubber : de en
  • PL28726B1 - : en pl
  • US2171153A - Pavement : en
  • US2171381A - Side wall construction for vehicle bodies : en
  • CA383656A - Pocket corset : en fr
  • CH206788A - Metal plain bearings. : de en
  • PL28814B1 - Clamp for electric railroad contact wires. : en pl
  • US2170925A - Belt drive : en
  • US2170990A - Methallyl ethers of phenylphenols : en
  • US2171222A - Process for the preparation of salts of cellulose ether carboxylic acids : en
  • CH206832A - Electromagnet, in particular for electric clocks and switching apparatus. : de en
  • CH206802A - Rotary piston machine. : de en
  • CA383699A - Cathode ray tube : en fr
  • US2170854A - Methoxy acetaldehyde and process of making alkoxy acetaldehydes : en
  • US2171109A - Humidity control : en
  • DE680329C - Process for the production of a condensation product : de en
  • AU108555B2 - Improvements in and relating to scarifiers and like implements having flexible frames : en
  • GB512180A - Improvements in or relating to electric high-pressure metal-vapour discharge tubes : en
  • CA383704A - Display container : en fr
  • US2170995A - Ethylene glycol aryloxy-acetates : en
  • US2171384A - Blasting assembly : en
  • AU28639A - Improvements in refractory glasses for envelopes of electric discharge devices : en
  • AU158539A - Braking mechanism : en
  • US2170868A - Control of motor vehicle clutches : en
  • US2171180A - Lead alloy : en
  • AU108283B2 - Improvements in neckties and linings therefor : en
  • SU55572A1 - The way zolka pigskin : en ru
  • BE435393A - : en
  • US2171221A - Supporting structure for porcelain enameled pans : en
  • US2170911A - Wind motor : en
  • USD116359S - Design fob a surf mattress : en
  • CH206748A - Photosensitive layer. : de en
  • CH206873A - Transport and storage device for steel bottles. : de en
  • CH206908A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • AU108296B2 - Improvements in or relating to insulated electric conductors : en
  • PL28643B1 - A method of removing additional stretch from a thread with a high degree of twist. : en pl
  • US2170943A - Disruptive or brisant explosive composition : en
  • US2171422A - Automatic hair waving comb and clamp device : en
  • US2171046A - Top construction : en
  • US2171471A - Fountain attachment for faucets : en
  • CH206715A - Process for the preparation of an α-dicarbonyl compound of the cyclopentanopolyhydrophenanthrene series. : de en
  • GB511943A - An improved form of animal food and apparatus for the manufacture thereof : en
  • PL28883B1 - The method of tanning sole leather. : en pl
  • CH206710A - Process for the production of basic calcium hypochlorite compounds. : de en
  • CH206738A - Relief stencil for creating real relief watermarks. : de en
  • US2171132A - Method of forming elements from molten metal : en
  • US2170926A - Automatic transmission : en
  • AU349938A - Improvements in crown seals for bottles jars andthe like : en
  • BE435039A - AGGLOMERATED FIBROUS PRODUCTS, AND METHOD AND APPARATUS FOR THE MANUFACTURE OF THE SAME : en fr
  • PL28815B1 - Klangfilm Gesellschaffc mit beschrankter Haftung, Berlin. / ^ Camera for recording sounds. : en pl
  • CH206780A - Pocket chalk sharpener for tailor's chalk sharpening. : en fr
  • CA383631A - Writing pad holder : en fr
  • SE96683C1 - : sv
  • CH206639A - Mower beam. : de en
  • GB512005A - Improvements in or relating to methods of extracting fluorine values from fluorspar ores : en
  • GB512075A - Silencer for internal-combustion engines : en
  • GB512193A - Improvements in levels and clinometers : en
  • CH206673A - Device for the production of a milk coffee mixture. : de en
  • PL28773B1 - N. V. Philips' Gloeilampenfabrieken, Eindhovenf High frequency bandpass filter for receiver with frequency overlap. : en pl
  • PL28819B3 - A method of producing a roving from wool fibers of a natural length, i.e. uncut. : en pl
  • US2171283A - Brake testing apparatus for motor vehicles : en
  • CH206761A - Waterproof winder for watch case. : en fr
  • CA383728A - Locomotive stoker : en fr
  • AU257939A - Improvements in non-knocking motor fuels : en
  • US2171104A - Vehicle bumper : en
  • US2171340A - Material processing apparatus : en
  • SU16440A1 - A device for reproducing sounds recorded as a conductive electric thick line : en ru
  • PL28853B1 - Method for the production of amino-substituted arsenic-formaldehyde disulfite compounds. : en pl
  • GB511954A - Improvements in or relating to the charging pumps of internal combustion engines : en
  • US2170941A - Transmission control in signaling systems : en
  • US2171311A - Ear and mouth telephone attachment : en
  • CA383621A - Down-draft burner : en fr
  • CA383626A - Inflated automobile seat : en fr
  • PL28911B1 - Brander Farbwerke Ohemische Fabrik G. m. B. H., Brand-Erbisdorf. Wood preservative. : en pl
  • US2171045A - Detachable repair shoe heel member : en
  • US2171257A - Internal combustion engine : en
  • US2171485A - Treating artificial filaments : en
  • US2171043A - Mining machine : en
  • US2171131A - Carton and article feeding mechanism : en
  • US2171370A - Automatic time switch clock : en
  • USD116376S - Design for a crane bridge or similar : en
  • US2171011A - Treatment of wells : en
  • US2171171A - Well pump : en
  • DE680466C - Scale with printing device : de en
  • DE680517C - Process for the production of objects from aqueous dispersions of rubber : de en
  • US2171352A - Emergency brake apparatus for motor road vehicles : en
  • US2171501A - Dispensing receptacle : en
  • PL28909B1 - : en pl
  • US2170984A - Spring coiling machine : en
  • US2170988A - Machine for feeding or depositing measured quantities of dough or the like : en
  • PL28633B1 - A method of hot production of wide metal strips using a four-roll return rolling mill. : en pl
  • US2171304A - Flashlight : en
  • US2171236A - Process of knitting : en
  • US2171059A - Universal joint : en
  • US2171434A - Beam-type housing structure : en
  • DE680328C - Process for the production of ethers : de en
  • DK56614C - Device for potato pickers with swivels and flywheels pivotally mounted around the impeller shaft. : da en
  • FR845583A - Independent suspension of the steering wheels of motor vehicles : en fr
  • FR845637A - Device for stretching and advancing films on reels : en fr
  • AU108293B2 - Method of treating seeds and cereal grains : en
  • AU72139A - Improvements in controlling devices for flashing signs andthe like : en
  • CA383636A - Footwear stiffener : en fr
  • US2171337A - Air conditioned garment : en
  • US2171472A - Moving picture camera : en
  • US2170860A - Direction finder : en
  • US2170880A - Cooking utensil : en
  • US2171425A - Vehicle construction : en
  • GB512358A - Improvements in or relating to elevators and the like : en
  • DE680396C - Process for the production of water-insoluble pectin esters : de en
  • DE680446C - Sewing machine with a device for cutting through the thread chain connecting successive workpieces : de en
  • GB512086A - Improvements in or relating to compound-expansion, two-stroke internal combustion engines : en
  • CH206745A - Basic rangefinder on photographic or cinematographic cameras. : de en
  • SU55539A1 - Adjustable swivel support for leaf-folding machine to limit sheet feeding : en ru
  • DE680382C - Movable device with filling shaft for the continuous production of closed channels, pipes or the like. : de en
  • GB512262A - Improvements in or relating to caps or stoppers for bottles or other containers : en
  • FR845623A - Improvements to steam generators with superheat adjustment : en fr
  • US2170825A - Propionic acid synthesis : en
  • US2171313A - Universal joint : en
  • AU361238A - Improvements in or relating to electrical transformer arrangements : en
  • DK56597C - Electron tube amplifier. : da en
  • GB511938A - Improvements in and relating to machine-gun locks : en
  • CA383614A - Creping method and apparatus : en fr
  • GB512349A - Improvements in or relating to collapsible boxes : en
  • DE680312C - Method for producing a plastic mass : de en
  • DE680403C - Devices for dampening rolling movements in vehicles : de en
  • US2171382A - Golf club grip and method of making the same : en
  • GB512256A - Improvements in or relating to fluid-tight joints : en
  • FR845625A - Brake for motor vehicles comprising two or more sets of shoes arranged axially next to each other in a single brake drum : en fr
  • DE680499C - Terminal block with wedge-shaped attachments : de en
  • DE680699C - Shoe heel : de en
  • US2171295A - Card and dice game : en
  • US2171503A - Wave forming and setting device : en
  • PL28614B3 - Method for the production of aliphatic hydrocarbons or their derivatives. : en pl
  • DE680590C - Arrangement of locking plates : de en
  • GB512057A - Improvements in automatically controlled variable pitch air screws : en
  • FR845666A - Process for extracting bases of rare elements contained in ores or rocks : en fr
  • US2171290A - Method of making clay products : en
  • US2170917A - Rail lubricating device : en
  • CH206692A - Device for emptying the down cover of pillows and the like. : de en
  • CH206826A - Device for the transmission of electrical voltages, preferably high-frequency voltages, from a rotating to a fixed conductor or vice versa. : de en
  • FR845620A - Advertising device giving the illusion of body movement in space : en fr
  • FR845778A - Support frame for the examination of stereophotographs : en fr
  • FI18582A - Anordning förde av skidor å bilar : en fi
  • GB512303A - Improvements in driving the cooling fans in air-cooled internal combustion engines : en
  • US2171426A - Vehicle roof construction and method of assembly : en
  • US2170829A - Film and process for preparing same : en
  • GB512164A - Improvements in and relating to appliances for testing synchronization in photographic flash light and shutter apparatus : en
  • PL28687B1 - Georg Schónfeld, Berlin-Zehlendorf. Rope clamp, e.g. for a hoist cage. : en pl
  • DE680487C - Piezoelectric sound device : de en
  • US2171159A - Azo compounds and process for coloring therewith : en
  • CH206677A - Carving board. : de en
  • AU108322B2 - Improvements in or relating to electron discharge tubes : en
  • CH206718A - Process for the preparation of a mixture of acylaminomorpholine compounds. : de en
  • GB512059A - Process and apparatus for producing slivers of staple fibres from threads of continuous artificial filaments : en
  • FR845602A - Process for processing semi-coke : en fr
  • GB511975A - Improvements in and relating to driving members for lathes : en
  • US2170802A - Vacuum-producing apparatus : en
  • US2171367A - Apparatus for and method of weaving pile fabrics : en
  • US2171423A - Method of reacting a tetra-alkyl lead and a nitro-phenol : en
  • PL28738B1 - Jan Noworyta, Lviv. A device for viewing or for projecting pictures. : en pl
  • USD116395S - Design for a dress : en
  • BE435369A - : en
  • GB511988A - Safety device for use with casement windows : en
  • GB512169A - Improvements in and relating to ventilators, air diffusers and the like : en
  • FR845610A - Step-by-step telegraph systems and apparatus : en fr
  • US2170816A - Synchronous converter control system : en
  • US2171173A - Sound pick-up unit : en
  • DE680238C - Process for reducing the consumption of smelted coke when refining iron ores mixed with aggregates in the blast furnace : de en
  • DE680533C - Device for treating textile goods, in particular stamping, on molds : de en
  • GB512225A - Improvements in and relating to grinding or abrading machines : en
  • GB512174A - Improved rubber composition : en
  • GB512299A - Process for the production of figured textile fabrics : en
  • DE680436C - Wave filter, in particular of asymmetrical shape, with a constant and real wave resistance in the passband and stopband : de en
  • GB512024A - Improvements in or relating to heaters, more particularly for use with cans or tins containing preserved food : en
  • GB511995A - Improvements in welt turning mechanism for straight-bar knitting machines : en
  • GB512393A - A method of making valve springs : en
  • US2171292A - Fluid control device : en
  • USRE21190E - Circular knitting machine for drop : en
  • US2171138A - Automatic locking device : en
  • US2171402A - Fluid well flowing means : en
  • US2171412A - Garnish molding and securing means therefor : en
  • US2171390A - Antifriction bearing : en
  • US2171415A - Container for packaging and dispensing interfolded paper sheets : en
  • USD116358S - Design for a lamp shade : en
  • FR845788A - Clothes protector : en fr
  • GB512045A - Improvements in paper containers : en
  • GB512298A - Improvements in means for cooling the oil supply for the engines of rear-engined motor vehicles : en
  • USD116436S - Design for a textile fabric : en
  • CH206833A - Converter tube with small probe current. : de en
  • CH206887A - Device for changing the transmission ratio on vehicle brakes. : de en
  • AU461938A - Window structure : en
  • FR845704A - Process for the manufacture of articles made of rubber or a material similar to rubber, provided with coated reinforcements in the form of a network : en fr
  • GB512091A - Improvements in or relating to test indicators for long bores : en
  • GB512107A - Improvements relating to fuel injection pumps for multi-cylinder internal combustionengines : en
  • FR845668A - Colorants manufacturing process : en fr
  • DE680441C - Printing unit for cash registers and accounting machines : de en
  • FR845611A - Improvements to switching devices that can be used, for example, in automatic telephone systems : en fr
  • USD116379S - Design for a coffee server : en
  • DE680442C - Selective self-seller with several vertical shafts arranged next to one another for goods of different prices : de en
  • FR845687A - excitation electrodes : en fr
  • GB511987A - Improvements in machines for making golf balls : en
  • PL28662B1 - Method and device for forming metals. : en pl
  • FR845705A - Method and device for manufacturing hollow parts by stamping : en fr
  • DE680669C - Speed controller for electric motors with control surfaces adjusted by centrifugal force : de en
  • PL28868B1 - Simmonds Development Corporation Limited, London. 'Screw, secured against self-unscrewing. : en pl
  • FR845621A - Impression mass : en fr
  • GB512255A - Improvements in doors : en
  • DE680469C - Process for the production of liquid products from hard coal by pressure hydrogenation : de en
  • GB512132A - Improvements in and relating to the treatment of cellulose with lye : en
  • GB511964A - Improvements in or relating to wardrobe suitcases : en
  • GB512376A - Improvements in and relating to sheet fasteners for mattresses : en
  • PL28838B1 - Hasler A.-G. Werke fiir Telephonie und Prazisionsmechanik, Bern: * Telescopic shaft with universal joints. : en pl
  • US2170934A - Conveyer : en
  • PL28886B1 - Laurits Alfred Madsen, Helnas, pr. Ebberup. ^ A preparation for controlling fungus and fungus and the method of its preparation. : en pl
  • PL28836B1 - Device for stopping water jets in steam heaters. : en pl
  • PL28842B1 - A way of giving pigments more opacity. : en pl
  • GB512404A - Improvements in the regeneration of catalysts : en
  • DE680429C - Process for the separation of mixtures consisting of acetylene and alkyl or alkenyl acetylenes by absorption : de en
  • GB512347A - Improvements in the separation of nickel and copper : en
  • AU108275B2 - Improvements in crown seals for bottles jars andthe like : en
  • AU108319B2 - Improvements relating tothe cooling coils of refrigerators : en
  • CH206868A - Wallet. : en fr
  • US2170978A - Coasting device : en
  • CA383658A - Flashing sign control device : en fr
  • PL28899B1 - A braking device that works with a medium under pressure. Patent dependent on patent No. 27303. : en pl
  • AU119939A - Improvements in gas-tight seals whereby electric conductors pass into a vitreous envelope : en
  • CH206896A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • US2171510A - Cooking machine : en
  • FR845791A - Rear engine automobile car : en fr
  • CA383702A - Vehicle wheel : en fr
  • US2171026A - Oil testing apparatus : en
  • US2171092A - Streamline body for motor vehicles with air-cooled rear engines : en
  • US2171259A - Process for welding film : en
  • AU108554B2 - An improved pulverizer for animal droppings : en
  • DE680388C - Upper structure loom with shafts suspended from the side : de en
  • DE680418C - Door lock for cars : de en
  • CA383675A - Fuel burning method : en fr
  • US2171317A - Refrigerator car : en
  • CH206652A - Stove. : de en
  • PL28673B1 - Escher Wyss Maschinenfabriken Aktiengesellschaft, Zurich. Multistage axial compressor with intercooling. : en pl
  • USD116360S - Design fob a portable electric cut : en
  • CH206844A - Electric light bulb. : de en
  • US2171116A - Christmas tree decoration : en
  • US2171324A - Manufacture of artificial silk : en
  • AU108323B2 - Improvement in underfired coke ovens : en
  • US2170936A - Method and apparatus for making artificial stone : en
  • US2171260A - Eyepiece light filter for photometers : en
  • CA383742A - Hydrocarbon oil processing : en fr
  • CA383755A - Sound recording apparatus : en fr
  • PL28805B1 - A method of processing synthetic resin threads. : en pl
  • AU108274B2 - Improvements in or relating to overalls and like garments : en
  • PL28616B1 - A method of producing bushings and other machine parts containing sliding surfaces. : en pl
  • US2170922A - Beer-dispensing faucet : en
  • US2170960A - Shoulder supporting member : en
  • US2171125A - Fluid-dispensing apparatus : en
  • CH206666A - Central heating boiler. : de en
  • PL28881B1 - Hugo Schmeisser, Suhi. Windbreaker with a hand lever. : en pl
  • SU55559A1 - A device for film winding in film projectors : en ru
  • CA383732A - Lubricating apparatus : en fr
  • US2171023A - Rubber faucet extension : en
  • US2171481A - Signal device : en
  • DE680414C - Slidable roof for car body with streamlined rear : de en
  • FR845553A - Re-ignition systems for discharge lamps : en fr
  • US2171500A - Casting means for line-casting machines : en
  • GB512311A - Improvements relating to sintered compositions : en
  • PL28824B1 - Method for the production of low boiling alkylated paraffin hydrocarbons : en pl
  • USD116364S - Design for : en
  • CH206830A - High-performance fuse for low and medium voltages. : de en
  • FR845758A - Rotating plate : en fr
  • PL28692B1 - A method of controlling the course of cooking sugar syrup and similar solutions and suspensions. : en pl
  • CA383679A - Electric valve converting system : en fr
  • PL28817B3 - Yarn manufacturing method. : en pl
  • SU55502A1 - Adaptation to the soldering machine for protection from soldering inside the sealed cans : en ru
  • US2171271A - Honing machine : en
  • DE680594C - Triggering and storage device for alarm clocks : de en
  • USD116352S - Design for a bottle : en
  • US2171269A - Camera : en
  • PL28778B1 - Device for converting a six-wheel vehicle with all driven wheels to the same four-wheel vehicle and vice versa. : en pl
  • US2170972A - Process for treating anhydrides : en
  • GB512196A - Method of preparing pertussis toxin and toxoid : en
  • GB512295A - Improvements in instrument panels and in the apparatus mounted on same : en
  • USD116405S - Design for a dress ensemble : en
  • PL28640B1 - Device for settling or separating in the mud. : en pl
  • PL28820B1 - A catalytic method of improving the anti-knock properties of engine fuel. : en pl
  • US2170826A - Method of rating and recording cutting operations : en
  • USD116350S - Design fok a safety lock for auto : en
  • US2170801A - Chlorination : en
  • FR845675A - Thruster handlebars for cycles : en fr
  • FR845761A - Device for fixing the glass of automobile headlights, cycles, etc. : en fr
  • GB512321A - Improvements in and relating to folding hoods for automobile or like vehicles : en
  • CH206790A - Process for the production of piston rings, in particular for light metal pistons of internal combustion engines. : de en
  • USD116388S - Design fob a textile fabric or : en
  • DE680401C - Device for switching off the drive of automatic sheet-fed printing machines, sheet feeders, etc. like : de en
  • DE680630C - Device for combining a strip of edges provided with tear-off threads or tear-off tape and a tongue that serves as a handle for tearing open : de en
  • DE680447C - Sewing machine with needle bar that can be swiveled in the feed direction : de en
  • DE680456C - Method of making an antithyroid substance : de en
  • FR845630A - Improvements to the insoles : en fr
  • GB512028A - Improvements in or relating to thermionic valve circuits : en
  • FR845652A - Improvements to rotary devices for the treatment of elastic fluids : en fr
  • GB512218A - Pulpy ink and fountain pen thereto : en
  • DE680457C - Method of obtaining hormones : de en
  • GB512210A - Improvements in garment markers : en
  • GB511940A - Improvements in and relating to the production of carbocyanine-like dyestuffs and tothe sensitising of photographic silver halide emulsions : en
  • GB512350A - Improvements in means for controlling the excitation of dynamo electric machines : en
  • FR845592A - Pyrophoric lighter : en fr
  • PL28766B1 - Radio Corporation of America, New York, n. Y. H (y j and Connection system of the optical tuning pointer. : en pl
  • US2170999A - Head assembly for grab buckets : en
  • GB512377A - Improved auxiliary tractive means for traction wheels of tractors and like motor vehicles : en
  • CA383701A - Mosaic and translucent surface : en fr
  • US2171068A - Cart : en
  • FR845582A - Motor vehicle chassis with forked central spar : en fr
  • US2171071A - Casket table for hearses : en
  • FR845661A - Polymerization process : en fr
  • GB512173A - Improvements in thermionic valve circuits : en
  • GB512319A - Improvements in or relating to apparatus adapted to radiate energy and reflectors therefor : en
  • SU55434A1 - Machine for determining the shear resistance of soils : en ru
  • USRE21183E - Reflection shooting procedure for : en
  • FR845581A - Motor vehicle with forked central spar : en fr
  • DK56610C - Motorized Games. : da en
  • CA383663A - Rock drill : en fr
  • DE680646C - Method and apparatus for producing a pulp binder mass : de en
  • FR845632A - Device for retaining dough on accumulator plates and methods and apparatus for their manufacture : en fr
  • FR845737A - Improvements to soundproof and heat-insulating linings : en fr
  • GB512245A - Improvements in or relating to electron discharge devices : en
  • DE680386C - Method and device for producing flat, absorbent workpieces from pulp water : de en
  • GB512192A - A new or improved inspection cover for aircraft wings, flotation bodies or other aerodynamical surfaces : en
  • FR845692A - Calorimetric meter device : en fr
  • US2171493A - Mirror device for looms for ascertaining from the position of the weaver breaking of warp threads or the like in the loom : en
  • FR845593A - Automatic air inlet valve : en fr
  • FR845798A - Rotary gas engine with jet turbine : en fr
  • US2171321A - Coffee-making apparatus : en
  • FR845757A - Improvements to electric motors : en fr
  • US2171443A - Saw file : en
  • US2171385A - Clutch : en
  • US2171392A - Variable leverage mechanism for vehicle brakes : en
  • US2170937A - Explosion safety device : en
  • CA383691A - Copying pad : en fr
  • GB511977A - Improvements relating to thermal control devices for electrical apparatus : en
  • DE680451C - Locking device on self-loading pistols : de en
  • US2170950A - Resins from phenolic compositions and esters of anacardic acid : en
  • USD116403S - Design fob a dress : en
  • US2171505A - Laminated fabric : en
  • USD116357S - Design for a lamp shade : en
  • CA383696A - Wringer roll mechanism : en fr
  • PL28608B1 - Knorr - Bremse Aktiengesellschaft, Berlin. Driver's brake valve. : en pl
  • USRE21182E - Highway guardrail construction : en
  • US2171110A - Refrigerating apparatus : en
  • PL28697B1 - Rotadisk Apparatebau G. m. B. H., Berlin-Reinickendorf. Attachment to a snake and tools for its installation. : en pl
  • PL28825B1 - Device for determining the length of the day and night depending on the season and geographic location. : en pl
  • AU407638A - Improvemennts relating to lamps comprising electric discharge tubes for the production of light by the combination of colours therefrom : en
  • DE680333C - Housing with magnetic shielding effect for measuring instruments : de en
  • DE680423C - United friction and claw clutch for rotating gear members, especially for change gears of motor vehicles : de en
  • US2171083A - Metallic abrasive : en
  • US2170952A - Gas turbine : en
  • DE680512C - Device for light treatment of the human body : de en
  • CH206918A - Process for the production of a vat dye. : de en
  • US2170838A - Power transmission : en
  • DE680455C - Furnace for the continuous production of fine grain : de en
  • FI18574A - Centrifugal fan for use in gas containment rooms : en fi
  • GB512123A - Improvements in and relating to sockets for electric lamps and the like : en
  • CH206843A - Method for producing a gas-filled incandescent lamp, in particular a double-helix incandescent lamp, and incandescent lamp produced by this method. : de en
  • DE680601C - Process for keeping fish fresh : de en
  • AU108515B2 - Improvements in or relating to processes of curing endless belts : en
  • AU108559B2 - Improvements in refractory glasses for envelopes of electric discharge devices : en
  • AU395538A - Improved construction of flanged-beam frames for motor trailers andother vehicles : en
  • CH206778A - Polishing drum for metal articles. : de en
  • US2170842A - Heel-seat fitting machine : en
  • US2171364A - Azo dyes : en
  • CA383743A - Hydrocarbon oil processing : en fr
  • CH206827A - Electrical switchgear. : de en
  • US2170878A - Amplifier feedback suppression : en
  • US2171482A - Perforating machine : en
  • US2171508A - Tractor : en
  • CA383634A - Water pump : en fr
  • DE680545C - Plant for rotating deep drilling : de en
  • BE435550A - Process for the preparation of nitriles : en fr
  • US2171079A - Combined automatic lighting and advertising device : en
  • US2171134A - X-ray system : en
  • USD116368S - Design for a combination ashtray : en
  • USD116401S - Design for a dress : en
  • CA383718A - Freight container : en fr
  • US2171424A - Apparatus for expanding a tire carcass and inserting an air bag therein : en
  • US2170867A - Pencil : en
  • CH206853A - Shower devices for medical, surgical and hygienic purposes. : de en
  • CH206924A - Converter circuit to achieve higher-phase ripple. : de en
  • US2170942A - Feeding finger : en
  • DE680573C - Overflow valve, especially for rotary lobe fluid pumps : de en
  • DK56609C - Method and Apparatus for Treatment. for example. Purification, of Fish. : da en
  • FI18578A - Anordning vid kolvar : en fi
  • GB512386A - Improvements in calendars : en
  • CH206712A - Process for the production of alkali peroxide. : de en
  • DE680363C - Ball or roller bearing installation for delivery rollers of spinning, twisting and similar textile machines : de en
  • DE680472C - Switching device : de en
  • AU57239A - Improvements in or relating to methods for electromechanical recording of sound vibrations : en
  • DE680623C - Process for the production of socks with French heels and French feet on the flat weft knitting machine : de en
  • PL28882B1 - : en pl
  • US2171339A - Container for rouge and the like : en
  • GB512391A - Improvements in or relating to means for withdrawing bar-shaped articles from galvanizing baths and other coating baths : en
  • PL28672B1 - : en pl
  • FR845696A - Articulation device of oscillating half-axles, oscillating axles, connecting rods, etc., to tubular chassis parts : en fr
  • GB512125A - Improvements relating to lubricated bearing surfaces : en
  • CA383633A - Boiler : en fr
  • CH206799A - Protective space ventilator for manual operation. : de en
  • DE680428C - Production of solid alkali cyanide : de en
  • DE680629C - Device for removing and opening flat folding boxes that have been combined to form a stack : de en
  • DE680503C - Heat time switch with switch bodies to be heated alternately : de en
  • USD116341S - Design for a counterbore : en
  • US2170852A - Aircraft blind landing system : en
  • US2171360A - Telescope observation instrument : en
  • PL28774B1 - A method for the preparation of readily soluble derivatives of sparingly soluble azo dyes containing at least one hydroxyl group. : en pl
  • US2171099A - Electrical control apparatus for heating plants : en
  • US2171193A - Conveyer for feeding articles : en
  • US2171250A - Olefin polymerization : en
  • GB512244A - Improvements relating to alloy cast irons and to articles manufactured therefrom : en
  • CH206720A - Process for the preparation of an indophenol-like compound of the naphthocarbazole series. : de en
  • PL28658B1 - : en pl
  • US2170938A - Venetian blind : en
  • US2171114A - Delayed action switch : en
  • USD116438S - Design for a valance clip : en
  • CH206645A - Thin parquet floor. : de en
  • CH206655A - Electric instantaneous water heater with hot water storage tank. : de en
  • GB512332A - Improvements in or relating to towel and like racks : en
  • AU108294B2 - Improvements in or relating to methods for electromechanical recording of sound vibrations : en
  • AU108346B2 - Improvements in fuel pumps for internal combustion engines : en
  • US2171284A - Scaffold : en
  • USD116373S - Design for a cream pitcher : en
  • CA383736A - Timber connector : en fr
  • PL28821B3 - Device for extracting dust particles by electricity floating in a gas or gas mixture. : en pl
  • US2171121A - Corncrib or similar structure : en
  • US2171178A - Derailment actuated brake applying means for pony and engine trucks : en
  • US2171186A - Expanding shoe mechanism : en
  • AU108317B2 - Improvements in and relating to docking andthe like irons : en
  • PL28742B1 - : en pl
  • US2170900A - Brake lever construction : en
  • AU12539A - Arrangements for syphon rinsing devices for rinsing with different quantities of water : en
  • AU399838A - Improvements relating to built up steel truss roof members : en
  • CA383630A - Plaster base applying means : en fr
  • CA383640A - Hypodermic syringe : en fr
  • CH206865A - Road traffic signal system. : de en
  • US2171227A - Secondary electron emitter and method of making it : en
  • US2171430A - Musical instrument : en
  • US2171198A - Method of recovering fatty acids : en
  • CH206668A - A method of manufacturing tubular electric heating elements and a heating element obtained by this method. : en fr
  • CH206671A - Quilted bedding. : de en
  • CH206871A - Adhesive tape for closing resp. Covering bulging, angular or otherwise uneven surfaces. : de en
  • US2171328A - Process for resolving petroleum emulsions : en
  • AU108318B2 - Improvemennts relating to lamps comprising electric discharge tubes for the production of light by the combination of colours therefrom : en
  • PL28713B1 - A method for treating metal objects with a heat source and an apparatus for carrying out the method. : en pl
  • US2170895A - Transfer machine : en
  • CA383694A - Duplication device : en fr
  • FR845659A - Improvements to thermionic tubes and similar electric discharge devices : en fr
  • PL28924B1 - : en pl
  • US2171020A - Whip stock : en
  • US2171094A - Can and insertable pouring spout : en
  • US2171297A - Sheet metal seaming machine : en
  • FR845662A - Adjustable mechanical pencil for drawing instruments, in particular for compasses : en fr
  • FR845745A - Vulcanized rubber regeneration process : en fr
  • GB512233A - Oil burner particularly for cooking stoves : en
  • US2170944A - Multicathode ray discharge device : en
  • US2171149A - Resilient mounting : en
  • CH206711A - Process and device for the production of hydrogen peroxide. : de en
  • DE680528C - Automatic time announcer, especially in telephone systems : de en
  • GB512135A - Improvements in and relating to folding and sliding doors : en
  • US2170876A - Machine for surface hardening metal articles : en
  • USD116389S - Design for a cooking range : en
  • USD116431S - Design for a pair of spectacles : en
  • BE435689A - : en fr
  • GB511972A - Improvements in or relating to the separation of minerals : en
  • US2171218A - Ultra short wave system for twoway communication : en
  • US2171400A - Air filter and medicator for poultry hovers and the like : en
  • FR845617A - Alloy for welding : en fr
  • GB512146A - Units for the construction of apparatus for experimental work in mechanics : en
  • GB511949A - Improvements relating to hydraulic control mechanisms : en
  • AU322838A - Synthesis of higher aliphatic hydrocarbons : en
  • CA383689A - Ammonium sulphate : en fr
  • CA383730A - Locomotive stoker : en fr
  • CA383751A - Holding and releasing switch : en fr
  • CH206696A - Press for the production of rubber articles vulcanized under heat. : de en
  • PL28923B1 - Fichtel & Sachs flktiengesellschaft, Schweinfurt Collective cable from Bowden lines : en pl
  • US2170963A - Suction nozzle : en
  • US2171468A - Shears and scissors : en
  • US2170836A - Variable speed dynamo-electric power transmitting and converting device : en
  • US2171483A - Golf club : en
  • PL28641B1 - A method of producing light images, arranged in one plane and giving the impression of convexity, especially geographic maps. : en pl
  • PL28698B1 - Pre-threading machine for the production of artificial threads. : en pl
  • PL28750B1 - Regulating device for restricting the intake of aircraft internal combustion engines. : en pl
  • US2171150A - Electronic modulator fob constant : en
  • DE680417C - Cylinder lock to be attached to a door lock : de en
  • DE680609C - Device for converting multi-phase current into single-phase current of lower frequency : de en
  • US2170815A - Flare : en
  • US2171226A - Electron discharge device : en
  • US2171383A - Golf club head : en
  • PL28745B1 - : en pl
  • CH206656A - Process and screw press for the formation of a structure-free extruded strand. : de en
  • AU108273B2 - A method of indicating leakages in tubes, containers andthe like : en
  • AU250238A - Improvements in or relating to interelectrode neutralization of frequency convertors suitable for use in superheterodyne radio and like receivers : en
  • AU349138A - Improvements in or relating to overalls and like garments : en
  • PL28696B1 - A method for producing dry ice and an apparatus for carrying out the method. : en pl
  • AU353738A - Improvements in fuel pumps for internal combustion engines : en
  • CA383662A - Vehicle body : en fr
  • GB512148A - Improved process and apparatus for the reclaiming of used lubricating oils : en
  • PL28828B1 - Leo Carl Schilling, Schiedam. Stain remover and method of its production. : en pl
  • PL28858B1 - , Warsaw. Garbage truck. : en pl
  • US2171272A - Condition responsive switch : en
  • GB512063A - Method of and apparatus for lining tubes : en
  • GB512116A - Improvements in crates, boxes or cartons for carrying wireless valves, cathode tubesand other fragile articles : en
  • US2171203A - Process for the purification of organically polluted water : en
  • US2171461A - Water-cooled wire block : en
  • PL28652B1 - Method of separation by interaction. : en pl
  • CH206782A - Safety device on spin dryers and the like. : de en
  • US2170886A - Airfoil mechanism : en
  • US2171442A - Casing perforating device : en
  • CH206647A - Shutters with movable transverse boards, in particular for darkening purposes of passive air protection. : de en
  • DE680537C - Control for rotating scissors, in which the constantly rotating scissor motor is accelerated or decelerated depending on the knife angle : de en
  • GB512079A - Improvements in the separation of nickel and copper : en
  • US2170916A - Rotary collar passing blow-out preventer and stripper : en
  • US2171041A - Flux for welding magnesium and magnesium alloys : en
  • USD116430S - Design for a suit ensemble : en
  • US2170940A - White titanium dioxide pigment : en
  • FR845559A - Fuel injection pump, etc., having a pump ring which can rotate eccentrically to the pump drum : en fr
  • DE680588C - Method and device for determining the sensitivity of the magnetic powder testing method to fault indication on magnetizable workpieces of any shape : de en
  • DE680597C - Procedure for the operation of overlay remote control systems : de en
  • US2170793A - Cutting torch or blowpipe : en
  • US2170982A - Dual control mechanism : en
  • CH206676A - Steamer. : de en
  • CH206735A - Fertilizer and process for making it. : en fr
  • US2170861A - Electric apparatus power saver : en
  • AU399238A - An improved automatic stoker for furnaces : en
  • USD116348S - Design for a dress : en
  • DE680334C - Arrangement for the elimination of disturbances in an electrical display device influenced by external fields or the like, to which the measuring current is supplied via a controlled partial wave rectifier : de en
  • DE680477C - Storage area for storing potatoes : de en
  • PL28661B1 - Tatra Werke, Automobil- und Waggonbau A. G., Prague-Smichov. The installation of the engine block in motor vehicles with a central sway member. : en pl
  • US2171478A - Means for flowing fluids under pressure : en
  • US2171506A - Laminated fabric : en
  • AU108425B2 - Improved process and apparatus for working glass bodies : en
  • CA383657A - Pressure reducing valve device : en fr
  • CH206750A - Mutes for brass instruments. : de en
  • DE680634C - Machine for making bottles from paper : de en
  • US2171376A - Head treating device : en
  • GB512033A - Improvements in or relating to apparatus for degreasing non-absorbent articles with volatile solvents : en
  • GB512036A - Improvements in or relating to the treatment of materials or substances during conveyance : en
  • PL28620B1 - Marconi's Wireless Telegraph Co. Ltd., London. High frequency amplifier with feedback. : en pl
  • US2171205A - Powder distributing attachment for tractors : en
  • GB511961A - Improvements in or relating to the construction of motor propelled vehicles : en
  • GB512184A - Improvements in separating and delivering appliances for fluent materials : en
  • GB512106A - Improved protective mask : en
  • DE680585C - Device for the automatic control of display devices : de en
  • FR845601A - Process for treating liquid distillable carbonaceous material containing suspended solids with hydrogen : en fr
  • AU258039A - Improvements inthe manufacture and production of liquid or solid hydrocarbons or liquid or solid oxygen-containing derivatives of hydrocarbons : en
  • CH206726A - Process for the preparation of a new anthraquinone dye. : de en
  • GB511944A - A truck for lifting and carrying heavy articles : en
  • US2170902A - Carburetor air cleaner and silencer assembly : en
  • US2171087A - Switch retainer construction : en
  • CH206846A - Process for the permanent excitation of several exchangeable, gas-filled fluorescent tubes in a high-frequency field. : de en
  • DE680540C - Chimneys, in particular hot chimneys : de en
  • AU108531B2 - An improved machine for splitting firewood : en
  • CH206729A - Method for the preparation of 5 ': 5 "- dibenzoylamino-1: 1': 5: 1" - trianthrimide carbazole. : de en
  • GB512119A - Improvements in curtain supports : en
  • US2170987A - Convertible camp bed and luggage carrier : en
  • US2171404A - Revolving hoist : en
  • PL28918B1 - Process for the preparation of symmetrical di-oxyalkylated amino arsenobenzenes. : en pl
  • DE680574C - LPG vehicle : de en
  • US2171395A - Treatment of rubber : en
  • AU490838A - Suspension apparatus for sliding sash windows : en
  • DE680474C - Arrangement for remote actuation of switches : de en
  • GB512220A - Improvements in or relating to universal joints : en
  • FR845599A - Process for obtaining halogenated monoolefins : en fr
  • GB511962A - Improvements in or relating to fastening inserting machines : en
  • AU440638A - Improvements relating tothe cooling coils of refrigerators : en
  • CA383705A - Sausage patty machine : en fr
  • CH206678A - Food can. : de en
  • AU16939A - Improvements in process for electric flash percussive welding : en
  • SU55565A1 - Device for intermittent pulling films without perforation : en ru
  • AU434038A - Improvements in and relating to docking andthe like irons : en
  • FR845579A - Method and radio-emission installation for generating sliding guiding surfaces for flying machines : en fr
  • GB511970A - Improvements in or relating to alternating current frequency changers : en
  • GB512309A - Improvements in or relating to devices for facilitating the extraction of juices from fruit : en
  • GB512011A - Household refrigerators : en
  • GB512101A - An improved apparatus for breaking down froth, more particularly in froth flotation preparation plants : en
  • CA383671A - Ignition timer : en fr
  • GB512236A - Improvements in or relating to the treatment of cellulosic textile fibres and materials, and the products resulting from such treatment : en
  • AU108343B2 - Improvements inthe manufacture and production of liquid or solid hydrocarbons or liquid or solid oxygen-containing derivatives of hydrocarbons : en
  • US2170920A - Apparatus for skiving strip material : en
  • PL28818B3 - : en pl
  • US2170863A - Process for melting up light metal scrap : en
  • AU108542B2 - Improvements in and relating to regulating transformers : en
  • US2171307A - Brake shoe key anchorage : en
  • DE680438C - Device for seeding bast fiber stalks : de en
  • DE680510C - X-ray tubes with focal point control depending on the tube voltage : de en
  • CA383726A - Parcel sorting and distributing apparatus : en fr
  • CA383681A - Electric valve circuit : en fr
  • DE680518C - Process for extracting metals, such as lead, silver or mercury, from ores and other raw materials that contain metal sulfides or free metal : de en
  • DE680606C - When the power brake is actuated, automatically effective counter-pressure brake for piston steam vehicles : de en
  • CH206855A - Method for regenerating punched registration cards and machine for its implementation. : en fr
  • CH206762A - Antagonist spring device for chronograph pusher. : en fr
  • DE680491C - Reaction vessel with tube bundles composed of perforated simple or conaxial tubes : de en
  • FR845795A - Process for preparing and isolating saturated and unsaturated compounds of the bis-nor- and etio-cholamic acid series and their substitutes : en fr
  • US2170797A - Method of making axle housings : en
  • US2171120A - Tie wire apparatus : en
  • US2171433A - Smoothness gauge : en
  • FR845793A - Process for preparing thioeter-carboxylic acids : en fr
  • CA383750A - Textile material processing : en fr
  • GB512369A - An improved catalytic process for vapour phase reactions : en
  • DE638327C - Self-inking stamping machine for marking laundry u. like : de en
  • FR845766A - Faucet connector : en fr
  • GB512191A - Improvements in or relating to wheel-operated contact devices for railway axle-counting apparatus : en
  • GB512213A - Improvements in or relating to the manufacture of high pressure containers : en
  • DE680437C - Firebox wall, in particular of steam generators, made of boiler tubes : de en
  • CA383682A - Laminated safety glass : en fr
  • PL28827B3 - Stanislaw Herman, Mikolów. Gas mask or similar protective device. : en pl
  • US2171158A - Speed reducing mechanism : en
  • US2171436A - Electric arc furnace : en
  • PL28621B1 - Tatra-Werke, Automobil- und Waggonbau A. G., Prague-Smichov. Mixed drive all-terrain vehicle. : en pl
  • USD116413S - Design fob a textile fabric : en
  • GB511982A - Improvements in directional lighting fittings and their manufacture : en
  • DE680304C - Aqueous bath for electrolytic copper plating of metals and procedures for carrying out the copper plating : de en
  • DK56595C - Process for the Preparation of 2,4-Dioxo-3,3-dialkyl-tetrahydropyridine-6-carboxylic acid esters or the corresponding free acids. : da en
  • GB511967A - Improvements in or relating to episcopes : en
  • PL28800B1 - Lubelska Wytwórnia Samolotów Limited Liability Company, Lublin. Powder for welding aluminum and its alloys. : en pl
  • AU108314B2 - Device for egg washing : en
  • CA383735A - Signalling system modulator and de-modulator : en fr
  • CH206722A - Process for the production of a new dye preparation. : de en
  • DE680508C - Sheathed transformer with flux drainage : de en
  • US2171021A - Hinge : en
  • GB512099A - A transportable house wall : en
  • DE680393C - Conversion of acidic ammonium sulfite solutions to ammonium sulfate and sulfur : de en
  • PL28790B1 - : en pl
  • BE435516A - : en fr
  • CA383669A - Picture transmission apparatus : en fr
  • GB512073A - Improvements in or relating to connecting members such as socket-headed screws : en
  • GB512223A - Improvements in centrifugal pumps : en
  • US2171019A - Hair-fastening device : en
  • US2171356A - Ruffle press : en
  • GB511989A - Improved method of joining pipes and tubes to other elements : en
  • GB512250A - Improvements in or relating to prime movers, pumps and compressors having rotary pistons : en
  • US2170791A - Locomotive front end arrangement : en
  • DE680627C - Flat vaulted reinforced concrete ceiling : de en
  • DE680641C - Surface grinding and polishing device for hard materials of various hardnesses, especially for stone : de en
  • GB511965A - Manufacture of substituted anthraquinones and aroyl-benzoic acids : en
  • AU71839A - Improved process and apparatus for working glass bodies : en
  • FR845633A - Manufacturing process of parchment tubes for plastic masses and the like : en fr
  • FR845656A - Material sorter : en fr
  • GB512291A - Improvements in and relating to drilling and like machine tools : en
  • CH206858A - Teletype receiver. : de en
  • GB512151A - Improvements in and relating to electric transformers : en
  • GB512076A - Improvements in or relating to lathes : en
  • US2170921A - Product for the treatment of the alimentary canal : en
  • SU55551A1 - The method of obtaining sulfur dyes : en ru
  • US2171453A - Stick file : en
  • FR845665A - Perfect stopper for sparkling wines and its production process : en fr
  • FR845586A - Advanced device for checking pump flow : en fr
  • US2171476A - Cover for umbrellas, parasols, and sunshades : en
  • PL28772B1 - Radio Corporation of America, New York, N.Y. Mesh detector connection system. : en pl
  • PL28880B1 - : en pl
  • US2170884A - Telegraph transmitter : en
  • US2171398A - Apparatus for homogenizing powdered mixtures : en
  • USD116411S - Design for a dress : en
  • DE680372C - Device for feeding synthetic resin molding compounds containing fiber to the metering device of a press : de en
  • DE680544C - High excavator for the removal of superimposed layers of overburden and coal : de en
  • GB512271A - Improvements relating to rubber tyred disc wheels such as castor wheels : en
  • GB511674A - Improvements in and relating to electric switching devices, particularly designed for preventing interference with radio apparatus : en
  • GB512357A - Improvements in electric furnaces adapted for the bright annealing of metals and like purposes : en
  • FR845755A - Rolling skip : en fr
  • FR845619A - Coin tray with electrically illuminated advertising transparency : en fr
  • FR845673A - Device for lifting and towing immobilized vehicles : en fr
  • GB512137A - Improvements relating to jacquard repeating apparatus : en
  • GB512335A - Improvements relating to the taps of gas ovens and the like : en
  • GB512142A - Improvements in copper base alloys : en
  • DE680522C - Friction gear for continuously changing the speed of the shaft to be driven : de en
  • DE680665C - Shorthand and concept holder : de en
  • DE680445C - Thread take-up for sewing machines with swinging needle bar lever : de en
  • FR845698A - Improvements to protective devices against artillery projectiles : en fr
  • US2171244A - Food compound : en
  • US2171323A - Die and method of forming : en
  • USD116422S - Design fob a woven textile fabric : en
  • CA383659A - Methine dyestuff : en fr
  • CH206693A - Trousers. : de en
  • PL28749B1 - Automatic Telephone & Electric Company Limited, London. 'The automatic escort telephone device and the way its subscriber dials are set by pulses sent from the switchboard to which it is attached. : en pl
  • US2170910A - Combination lifting jack and wheel locking arrangement for automobiles or like vehicles : en
  • USD116375S - Design for an oil burner pumping : en
  • US2171103A - Tie-holder construction : en
  • US2171117A - Method of producing sulphonic acids and salts thereof : en
  • US2170808A - Integral tail wheel and rudder for airplanes : en
  • US2170957A - Keyless lock device : en
  • US2170996A - Ethylene glycol di-(aryloxyacetates) : en
  • US2171401A - Speed control mechanism for automotive vehicles : en
  • FR845753A - Method and apparatus for the treatment of plantations and crops : en fr
  • PL28905B1 - Connecting link for chains. : en pl
  • FR845595A - Improvements to devices used to expose liquids to direct contact with air or other gases : en fr
  • FR845655A - Improvements in the production of organic compounds : en fr
  • FR845777A - Improvements to aerial television systems : en fr
  • GB512060A - Improvements relating to photographic development : en
  • US2170906A - Collapsible display carton : en
  • US2171489A - Ashtray and cigarette extinguisher : en
  • PL28611B1 - A device for measuring the dose of fuel injected into internal combustion engines, working at a constant and significantly changing air pressure. : en pl
  • US2171238A - Discharge device and electrode : en
  • PL28625B1 - Tatra-Werke, Automobil- und Waggonbau A. G., Prague ^ Smichoy. Seating the pedals to the oscillating axles. : en pl
  • US2171184A - Producer gas plant : en
  • FR845618A - Method and device for preventing radiation from artificial light sources outside of premises : en fr
  • GB512046A - Foot-wear with ventilation of the interior : en
  • GB512167A - Improvements in or relating to electric fires : en
  • USD116333S - Design foe : en
  • USD116370S - Design for a range or analogous : en
  • GB512354A - Improvements in telephone systems : en
  • CH206809A - Valve for internal combustion engines. : de en
  • DE680519C - Process for separating nickel and copper : de en
  • GB512012A - Drafting machine : en
  • FI18588A - Förfaringssätt vid framställning av margarin : en fi
  • US2170843A - Method of making calcium phosphate products : en
  • US2171216A - Cathode ray electrical measuring device : en
  • PL28920B1 - : en pl
  • CH206845A - Method for operating electrodeless fluorescent tubes in a high-frequency field. : de en
  • CA383725A - Drying and grinding apparatus : en fr
  • SU55589A1 - Hydraulic mobile stand : en ru
  • US2170835A - Navigational system : en
  • USD116354S - Design fob a prayer rail : en
  • US2171208A - High speed spindle construction : en
  • DE680493C - Device for holding rigid, curved printing plates on a hollow forme cylinder of rotary printing machines : de en
  • CA383754A - Organic matter decomposition : en fr
  • FR845660A - Method and device for the simultaneous replacement of coils in warping machines or creels : en fr
  • GB512065A - Improvements in or relating to modulated carrier wave transmitters : en
  • PL28898B3 - Eisenwerk Rothe Erde G. m. B. H., Dortmund. Protection of ball bearing rings, especially those used for vehicle trailers. : en pl
  • US2171075A - Snow sweeper : en
  • US2171341A - Fan casing : en
  • USD116434S - Design for a tractive vehicle : en
  • DE680651C - Direction indicators for motor vehicles : de en
  • DK56590C - Elastic Cross. : da en
  • PL28648B1 - : en pl
  • PL28875B1 - A method of producing valuable hydrocarbons such as gasolines, medium oils, diesel fuels, lubricating oils and the like from coal, tar, mineral oils, their distillation products or hydrogenation by high-temperature pressure hydrogen treatment in the presence of catalysts. Patent dependent on patent No. 22792. : en pl
  • US2170932A - Dump truck and loader therefor : en
  • US2170820A - Control mechanism for radio receivers : en
  • AU108337B2 - Improved burr gathering machine : en
  • AU108280B2 - Improvements in and relating to electrical communication systems involving automatic gain control apparatus : en
  • PL28757B1 - : en pl
  • AU108324B2 - Improvements in and connected with belt and the like pulleys of the split type : en
  • DE680411C - Projection device for photoelectrically controlled incandescent lamp cinemas : de en
  • FR845580A - Method and device for generating sliding guide surfaces for flying machines : en fr
  • AU108572B2 - An improved drill cultivator : en
  • CH206756A - Apparatus intended to be inserted in a pipe in order to give, to the passage of a fluid in this pipe, an indication which depends on the value of the flow rate and which is a function of another property of this fluid. : en fr
  • PL28849B1 - A way to prevent mildewing in products, especially food products. : en pl
  • US2171072A - Carpet-cleaning machine : en
  • US2171177A - Power transmission : en
  • PL28644B1 - Valsts Elektrotechniska Fabrika, Riga. Wrap film packaging. : en pl
  • US2170804A - Merocyanine dyes from benzoxazoles : en
  • US2171509A - Terrestrial globe mounting : en
  • US2171066A - Cushion closing device : en
  • US2171188A - Binding device and pencil support : en
  • GB512340A - Improvements in or relating to recording apparatus of the rotating-disc type for use with pyrometers and other instruments : en
  • US2171215A - Gaseous discharge tube : en
  • USRE21191E - Road construction : en
  • CA383724A - Catalyst regeneration : en fr
  • PL28802B1 - Aerial device for aircraft. : en pl
  • PL28844B1 - : en pl
  • US2171140A - Pressure sensitive adhesive sheet : en
  • AU108332B2 - Improvements in or relating to electrical transformer arrangements : en
  • DE680572C - Through air sifter : de en
  • US2171440A - Glove pocket construction : en
  • AU108290B2 - Improvements in airconditioning apparatus : en
  • CH206682A - Method of making hollow viscose silk. : de en
  • CH206700A - Knife star dough dividing and molding machine. : de en
  • US2170967A - Projecting apparatus : en
  • CH206856A - Circuit arrangement for the distribution of a sequence of pulses. : de en
  • CA383610A - Railroad crossing : en fr
  • AU42639A - Improvement in belt construction : en
  • PL28900B1 - Extraction device for punching, especially for cotton punching. : en pl
  • PL28914B1 - Henryk Kantoch, Sosnowiec and Stanislaw Banski, Sosnowiec. Lubricant rail connector without screws. : en pl
  • CH206767A - Lining on centrifugal molds. : de en
  • GB512352A - Improvements relating to emulsifying and homogenising apparatus : en
  • CH206795A - Grease gun. : de en
  • FR845715A - High-power electric switch with extinguishing of the arc by means of an extinguishing agent animated by a flow movement, in particular a gaseous agent : en fr
  • GB511974A - Improvements in and relating to the manufacture of wooden boxes : en
  • DE680566C - Manufacture of graphite-free titanium carbide : de en
  • PL28791B1 - Julian Popowicz, Warsaw. Suitcase that can be converted into a bed. : en pl
  • US2171348A - Electric valve time delay relay : en
  • AU108512B2 - Improvements in high-pressure mercury-vapour electric discharge lamps : en
  • AU401038A - Improvements in and relating to scarifiers and like implements having flexible frames : en
  • CH206836A - Mechanical synchronous rectifier for high voltage. : de en
  • CH206884A - Control device for a generator driven by a motor, in particular an internal combustion engine, at a variable speed. : de en
  • US2170964A - Device for controlling electric circuits : en
  • CA383617A - Pump shaft seal : en fr
  • CH206755A - Closing mechanism for firearms. : en fr
  • PL28660B1 - Device showing the course of flight of an airplane or other aircraft. : en pl
  • CA383759A - Signalling system and apparatus : en fr
  • FR845588A - Process for the agglomeration of fibrous materials, in particular glass fibers, and binder used for this purpose : en fr
  • GB546552A - Improved form of station keeping sight for use on aircraft : en
  • US2171054A - Apparatus for displaying and advertising merchandise : en
  • USRE21186E - P griffith : en
  • US2171484A - Filtering device : en
  • CA383642A - Recooling plant : en fr
  • CA383721A - Article marking apparatus : en fr
  • CH206661A - Self-collecting door lock. : de en
  • PL28811B1 - Tatra-Werke, Automobil- und Waggonbau A. G., Prague-Smichov. Pedal for oscillating shafts. : en pl
  • GB512261A - Improvements in caps for personal wear : en
  • GR8455B - CONSUMER CONTROLS ON THE VALUE OF THESE PURCHASED GOODS. : el en
  • CA383644A - Loading and unloading device : en fr
  • PL28705B1 - Westinghouse Electric n ^ ^ 0 Jj 70 & Manufacturing Company, Pittsburg, Pennsylvania. Electric liquid switch with high breaking power. : en pl
  • CH206926A - Self-seller. : de en
  • CH206818A - Arrangement for the operation of synchronous motors intended for a large frequency range. : de en
  • GB512239A - Improvements in the production of extensible slivers of staple fibre from bands of continuous filaments : en
  • CA383753A - Ironing machine : en fr
  • AU108490B2 - Hydraulic bag loader : en
  • BE435676A - : en
  • CA383700A - Cathode ray amplifier : en fr
  • CA383747A - Fuse plug : en fr
  • CH206912A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • PL28856B1 - The method of fixing the tram rails in the pavement. : en pl
  • USD116429S - Design fob a shoe : en
  • AU108292B2 - An improved process for, and composition for use in, hardening files andthe product ofthe process : en
  • AU457538A - Improvements in high-pressure mercury-vapour electric discharge lamps : en
  • CH206703A - Process for cleaning and disinfecting brewery and beer equipment and beer transport vessels. : de en
  • CH206822A - Clamp for connecting tubular parts, in particular parts of catenaries. : de en
  • AU108320B2 - An improved road grader front assembly : en
  • PL28735B1 - Valsts Elektrotechniska Fabrika, Riga. A camera for roll films. : en pl
  • PL28865B1 - The method of preventing the skewing of the rollers in the roller chains during the run and the appropriate roller guide. : en pl
  • US2171431A - Miniature lamp instrument illuminator system : en
  • US2171137A - Lamp shade and covering therefor : en
  • CH206695A - Shoe insert. : de en
  • GB512042A - Improvements in or relating to thermionic valve circuits : en
  • PL28893B1 - Ackumulator-Fabriksaktiebolaget Tudor, Stockholm. Contact hydrometer. : en pl
  • PL28606B1 - : en pl
  • USD116356S - Design for a lamp : en
  • PL28637B1 - Device for moving the output and other materials. : en pl
  • PL28887B1 - The method of making veneers. : en pl
  • US2171320A - Process of preparing extracts of spleen and liver : en
  • US2171408A - Active carbonaceous materials : en
  • CA383745A - Signal device : en fr
  • CA383738A - Windshield cleaner : en fr
  • CA383639A - Trolley yoke : en fr
  • CA383720A - Moving stairway : en fr
  • CH206921A - Machine tool. : en fr
  • CH206828A - Wire resistor with resistance wire wound onto an insulating body with metallic connection caps. : de en
  • DE680440C - Arithmetic scales with logarithmically divided scales that can be moved against each other : de en
  • GB512219A - Improvements in or relating to toilet articles : en
  • CH206727A - Process for the preparation of compounds of the anthraquinone series. : de en
  • US2171242A - High-voltage generator : en
  • AU500738A - Hydraulic disruption of solids : en
  • CH206819A - Machine set consisting of a water turbine and an electric generator. : de en
  • DE666583C - Electric cells, in particular motor vehicle batteries with removable covers and replaceable electrodes : de en
  • PL28719B1 - Device for lifting the trolley deck. : en pl
  • US2171088A - Air conditioning apparatus : en
  • PL28829B1 - Device for guiding and tensioning the belt driving the drive drum in cutting, twisting and similar textile machines. : en pl
  • US2171168A - Radiator cap assembly : en
  • US2171325A - Finishing tool : en
  • US2171462A - Advertising and display sign : en
  • CH206684A - Upper thread tensioning device on sewing machines. : de en
  • CH206857A - Push button arrangement for alternating current telegraphy. : de en
  • PL28768B1 - State Telecommunications Institute, Warsaw and Tadeusz Kom, Warsaw. Device for recording telephone conversations on a phonographic disc. : en pl
  • PL28879B1 - The method of making plywood : en pl
  • US2171463A - Hammer crusher with adjustable resilient feed grate : en
  • USD116344S - Design fob a pneumatic tire : en
  • AU349638A - Improvements in frequency control in superheterodyne receivers : en
  • CH206925A - Process for the preparation of 4-amino-4'-sulfonedimethylamido-diphenyl sulfone. : de en
  • CH206806A - Uncooled piston for internal combustion engines. : de en
  • CH206864A - Device for measuring electrical quantities as a function of their instantaneous values, in particular for remote measurement, with the aid of measuring devices that integrate the instantaneous values. : de en
  • GB511955A - Improvements in or relating to telephone subset circuits : en
  • GB512226A - Improvements in and relating to the bearings of electrical regulating or control devices : en
  • DE680560C - Process for the production of opaque oxide layers on alloys of aluminum and magnesium : de en
  • CA383729A - Stoker conveyer : en fr
  • AU352138A - Improvements inthe construction of collapsible boxes or cartons : en
  • PL28783B1 - A device for limiting the largest amount of fuel injected into the working cylinders of internal combustion engines charged with centrifugal pumps driven by exhaust gases. : en pl
  • US2171157A - Pivotal joint : en
  • US2171464A - Blanking machine : en
  • AU374739A - Improvements in and relating to the utilization of the exhaust gases of internal combustion air-craft engines : en
  • AU346338A - An improved tray : en
  • DE680511C - High-voltage protective cover for discharge vessels, especially X-ray tubes : de en
  • US2170903A - Telephone system : en
  • US2170946A - Machine for forming bottle necks upon sheet metal tubs : en
  • US2170799A - Drop shelf and bracket : en
  • USRE21184E - Garment : en
  • CH206859A - Telephone system in which a transmitter station shared by several participants transmits high-frequency messages. : de en
  • CA383620A - Sealed receptacle : en fr
  • CH206741A - Device for turning the impression cylinder on and off in relation to the forme cylinder of a rotogravure printing machine. : de en
  • CA383688A - Mordant : en fr
  • CH206820A - Device for deriving high-frequency vibrations emanating from electrical machines and apparatus. : de en
  • DE680315C - Circuit arrangement for company lines with voting devices at the branch points : de en
  • CA383757A - Liquid fuel atomizing apparatus : en fr
  • DE680502C - Cam roller switch with quick switching : de en
  • GB512009A - Improvements in or relating to clutch plates : en
  • GB512115A - Improvements in or relating to metal tube extrusion presses : en
  • AU347638A - Improvements in or relating particularly to interchangeable wheels for tractors orthe like : en
  • AU108281B2 - Window structure : en
  • PL28832B1 - Rinsing method in a trough with a permanent bearing, e.g. carbon. : en pl
  • SU55545A1 - The method of mounting the blades in the groove of the steam turbine rotor : en ru
  • US2171296A - Ore grinder : en
  • DE680576C - Pants to be worn under the shirt : de en
  • CH206883A - Signal system on vehicles such as bicycles and motorcycles. : de en
  • CA383710A - Power operated steering device : en fr
  • CH206740A - Die setting and line casting machine. : de en
  • AU108477B2 - Improvements in controlling devices for flashing signs andthe like : en
  • PL28870B1 - A knitted bag sheath on a strip product, in particular an electric cable, a method of making it, and a knitting machine for carrying out the method. : en pl
  • PL28765B1 - : en pl
  • CH206899A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • BE435509A - Method for performing photographic enlargements, in particular for high enlargement ratios : en fr
  • AU108278B2 - Improvements in auxiliary electrodes in electric discharge devices : en
  • US2171196A - Frankfurter-forming apparatus : en
  • US2171106A - Steam locomotive : en
  • AU258139A - Improvements inthe manufacture and production of liquid or solid hydrocarbons or liquid or solid oxygen-containing derivatives of hydrocarbons : en
  • US2171074A - Process for improving the texture of rolled products : en
  • CH206794A - Lubrication device on built-in plain bearings. : de en
  • PL28915B1 - Pinkus Stamberger, Krakow. Collective siphon, e.g. for a bathroom or urinal. : en pl
  • DE680624C - Process for the production of belts : de en
  • FR845728A - Device for modulating a high frequency oscillation or for amplifying a modulated high frequency oscillation : en fr
  • FR845754A - Ultra-bright, low-voltage cathodic discharge glow lamp for recording sound on film or other applications : en fr
  • US2170992A - Air conditioning : en
  • CH206721A - Process for the preparation of a condensation product from trimethylhydroquinone and crotonic acid halide. : de en
  • BE435443A - : en
  • CA383741A - Hydrocarbon processing : en fr
  • DE680605C - Method of making sponge iron : de en
  • DE680444C - Device for machine sewing of welding leather in hats u like : de en
  • FR845776A - Improvements to small stitch leather sewing machines : en fr
  • US2170894A - Sheet-feeding apparatus : en
  • US2171330A - Rotary conveyer guide and fork for barn cleaning apparatus : en
  • CH206837A - Process for the manufacture of selenium rectifiers. : de en
  • GB512160A - Improvements in training devices for motor vehicle drivers : en
  • FR845557A - New aromatic aldehyde, chromatable dyes derived from this aldehyde and belonging to the triarylmethane series and process for the preparation of these various compounds : en fr
  • CH206909A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • US2171262A - Trimming and reaming machine : en
  • US2171456A - Throttle control mechanism : en
  • CH206888A - Light day signal system. : de en
  • CH206764A - Devices for checking the rate of clocks, in particular pocket watches. : de en
  • AU112597B2 - Improvements in and relating to the utilization of the exhaust gases of internal combustion air-craft engines : en
  • CA383611A - Engine fuel injector device : en fr
  • PL28736B1 - Device for copy bookkeeping. : en pl
  • SE96673C1 - Feeding troughs for calves and similar : en sv
  • US2171375A - Light weight construction steel : en
  • USD116338S - Design fob an announcement stand : en
  • CH206679A - Glass cleaning device. : de en
  • US2171421A - Vulcanization of rubber : en
  • CH206851A - Skin massager. : en fr
  • CH206664A - Optical glass and method of making the same. : de en
  • CA383672A - Engine ignition system : en fr
  • PL28823B1 - Internal combustion engine with sliding bottom in the working cylinder. : en pl
  • US2170828A - Pellicle and process for preparing same : en
  • US2170866A - Internal expansion stopper : en
  • US2170881A - Gas anchor : en
  • US2170971A - Educational device : en
  • US2171047A - Heat exchange apparatus : en
  • DE680300C - Electric light tube with positive gas column and inner cover with fluorescent substances : de en
  • AU30939A - Improvements in or relating to can openers : en
  • PL28873B1 - Telefunken Gesellschaft fiir drahtlose Telegraphie m. B. H., Berlin Electric discharge lamp with double distribution of discharge current. : en pl
  • US2170893A - Brake : en
  • DE680554C - Coreless induction furnace with cylindrical or conical induction coil : de en
  • GB512412A - Improvements relating to electric resistance heaters : en
  • USD116433S - Design for a dress ensemble : en
  • GB512122A - Improvements in supporting structures for turn-tables : en
  • DE680589C - Feeding device for the feed rollers on Haecksel machines : de en
  • US2171038A - Separable hinge : en
  • USD116372S - Design for a culinary cabinet : en
  • GB511979A - Improvements in and relating to electric arc welding : en
  • GB512238A - Improvements in or connected with combined cigarette, powder or vanity, coin and like cases : en
  • DE680500C - Rotary switch for multi-pole circuits, especially heater switches : de en
  • GB512339A - Improvements in the induction systems of internal-combustion engines : en
  • FR845615A - AC voltage modulator : en fr
  • GB512229A - Improvements in or relating to the conditioning of gases, particularly air : en
  • GB511966A - Manufacture of 1:3-butylene-glycol : en
  • GB512178A - Improvements in appliances for seed sowing : en
  • CH206674A - Method of making clothes hangers. : de en
  • CH206834A - High vacuum cathode ray tube with a large depth of field of the electron optical system. : de en
  • PL28659B1 - Rudolf Reinisch, Vienna. : en pl
  • PL28665B1 - N. V. Philips' Gloeilampenfabrieken, Eindhoven. Electric discharge lamp filled with gas. : en pl
  • PL28804B1 - Marconi's Wireless Telegraph Co. Ltd., Loodj MOh urno Connection system for powering or tuning distances from high-frequency circuits. : en pl
  • USD116410S - Design for a dress ensemble : en
  • PL28871B1 - Johnson Laboratories, Incorporated, Chicago, Illinois. I Device for compensating for variations in the frequency of vibrations in the circuit of the oscillating tube, caused by fluctuations in temperature or voltage. : en pl
  • US2170904A - Serving oven : en
  • US2171129A - Tuning indicator for radio receivers : en
  • US2171085A - Labeling machine for bottles and the like : en
  • DE680599C - Procedure for disinfection and preservation : de en
  • GB512251A - Improvements in or relating to tractor-trailer vehicles or like mobile carriers : en
  • US2171377A - Contact filtration of viscous lubricating oils for decolorization : en
  • CH206863A - Automatic fire alarm system. : de en
  • GB512221A - Improvements in or relating to the production of dehydrated borax : en
  • DE680596C - Procedure for operating remote control systems : de en
  • USD116385S - Design for a textile fabric or : en
  • DE680626C - Device for treating rayon threads u. like : de en
  • US2171010A - Random thatch roof construction : en
  • US2171191A - Windshield frame structure : en
  • PL28746B1 - A method of producing stable solutions of anesthetics. : en pl
  • SU55474A1 - Coin sorter : en ru
  • DE680405C - Closed overcurrent protection fuse : de en
  • DE680427C - Ironing stand for ironing men's large items : de en
  • FI18577A - Anordning spolning av cylindrarna vid förbränningsmotorer med U-shapediga cylindrar : en fi
  • GB512277A - Apparatus for absorbing the secondary rays in x-ray photography : en
  • PL28613B1 - Carl Hamel Aktiengesellschaft, Siegmar near Chemnitz. Drum for thread guiding in cross coils. : en pl
  • PL28679B1 - Method of obtaining gonadotropic hormones from the serum of fetal mares. : en pl
  • US2171280A - Securing attachment to wire cables : en
  • US2171414A - Shoe : en
  • PL28639B3 - Akciov £ spoleónost drive Skodovy zavody in Plzni, Prague and Bohdan Pantoflicek, Pilsen. Self-firing mine thrower. : en pl
  • CH206796A - Lifting device. : de en
  • US2171327A - Multiple recorder : en
  • FR845604A - Machine for digging mica insulation between copper blades of electrical machine collectors : en fr
  • GB512252A - Method of manufacturing a selenium rectifier : en
  • GB512308A - Improved method of producing a luminescent layer on a support : en
  • US2170870A - Sliding door : en
  • US2171354A - Undergarment : en
  • US2171449A - Apparatus for treating articles with fluid : en
  • FR845739A - Process for continuous deinking of paper and cardboard or the like : en fr
  • FR845563A - Process for improving the stability of alkaline solutions containing azo dye components of a phenolic nature : en fr
  • US2171378A - Display counter construction : en
  • USD116415S - Design for a dress : en
  • PL28646B1 - : en pl
  • US2170823A - Machine for operating on shoe parts : en
  • US2171119A - Strand-winding machine : en
  • US2171253A - Tubular radiator : en
  • GB511978A - Improvements in or relating to shell or hollow structural members particularly for use in aircraft and aircraft construction : en
  • GB512051A - Improvements in projectiles : en
  • CH206758A - Pan bearings, in particular for scales. : de en
  • GB512194A - Improvements in or relating to grinding or abrading machines : en
  • DE680412C - Device for the artificial production of ice flowers, frost or the like on shop windows, showcases or the like for advertising purposes : de en
  • DE680587C - Arrangement for hanging measuring instruments : de en
  • DE680652C - Screw sheathing : de en
  • PL28651B1 - A device for manual or automatic lifting and lowering of the upper feed rollers in sawmills with the use of levers, activated by counterweights or springs. : en pl
  • US2171001A - Building construction : en
  • CA383709A - Hot air furnace : en fr
  • DE680546C - Process for the manufacture of floor coverings : de en
  • US2171432A - Radio apparatus : en
  • US2171444A - Brush : en
  • FR845624A - Hermetically sealed box : en fr
  • PL28688B1 - Georg Schónfeld, Berlin. Compliant exhaust cage slider. : en pl
  • PL28739B1 - : en pl
  • US2170879A - Bolster : en
  • US2171176A - Oil bath rotary : en
  • US2170873A - Electrical system : en
  • US2171413A - Apparatus for and method of reshaping a molded pulp article : en
  • AU50739A - A method of and means for determining the form, and controlling the production, of geodesics : en
  • CA383686A - Electric fuse : en fr
  • DE680313C - Circuit arrangement for telephone systems with dialer operation and several exchanges in series : de en
  • DE680341C - Lining for centrifugal casting molds and method for introducing the lining : de en
  • GB512324A - Improvements in or relating to control means for regulating the carburation devices of internal combustion engines : en
  • BE435633A - : en
  • DE680520C - Process for the removal of arsenic from Huettenmaennischen intermediate and waste products : de en
  • DK56619C - Detachable fork end for the rear wheel on bicycles and motorcycles. : da en
  • USD116366S - Design fob a fly swatter blade : en
  • US2171163A - Fastening device : en
  • DE680425C - Wall trays for placing baking boards and baking trays with rotatable stands : de en
  • DE680481C - Cinema cassette camera : de en
  • US2170846A - Automatic compressor unloader : en
  • US2171491A - Brake and pressure fluid : en
  • PL28635B1 - Abram Lapp, Litzmannstadt and Grzegorz Lapp, Litzmannstadt. Automatic water extinguisher. : en pl
  • US2171024A - Tile cutting machine : en
  • US2171034A - Tractor attached implement : en
  • US2171246A - Advertising and display device : en
  • FR845684A - Machines for the production of compressed combustion gases : en fr
  • GB512124A - Improvements in or relating to terminals for electrical condensers and like apparatus : en
  • US2171261A - Copy holder : en
  • US2171419A - Fabric-reinforced artificial leather : en
  • DE634142C - : de en
  • CA383683A - Refrigerator gas purger : en fr
  • CH206650A - Spreader bar safety device on painter's ladders. : de en
  • DE680565C - Production of chlorosulfonates : de en
  • US2171225A - Grid electrode : en
  • US2171465A - Grinding mill : en
  • US2171053A - Fishing rod and ski clamp and carrier : en
  • FR845727A - Detachable frame for country sheds or similar : en fr
  • GB512363A - Improvements in and relating to domestic fireplace bottoms : en
  • FR845768A - Improvements to amplifier relays : en fr
  • PL28629B1 - : en pl
  • US2171388A - Method and means for binding fibrous building material : en
  • PL28727B1 - Intertype Corporation, Brooklyn, n. Y. A line folder for the photographic production of line patterns for printing, particularly offset and gravure printing. : en pl
  • PL28779B1 - A method of producing patterns on flat textile products containing fiber. : en pl
  • US2170833A - Di-phenyl mono-ortho-chlorphenyl phosphite : en
  • DE680607C - Voters, in particular labeling voters : de en
  • GB512154A - Improvements in luminescent materials : en
  • DE680430C - Arrangement for remote control by synchronous actuation of pushbutton switches without the aid of special control lines : de en
  • US2171209A - Fuel pump for supercharged engines : en
  • US2171379A - Ammonium nitrate explosive : en
  • USD116335S - Design for a belt buckle : en
  • GB512108A - Improvements in or relating to electric communication systems : en
  • PL28859B1 - A method of determining the quality and quantity of nutrients that should be brought to a specific soil in order to achieve the highest possible yield, and a device for carrying out this method. : en pl
  • DE680318C - Device for remote control of adjustable organs : de en
  • PL28845B1 - . Philips * Gloeilampenfabrieken, Eindhoven. 'pP Receiver with frequency conversion and self-correction correction. : en pl
  • CA383643A - Ball making machine : en fr
  • PL28653B1 - A method of discharging molten metal from an electrolysis vessel lined with electrode carbon, and an apparatus for carrying out the method. : en pl
  • PL28896B1 - Method for the production of cyclic aminosulfamide derivatives. : en pl
  • US2170919A - Method of making rubber articles : en
  • USD116409S - Design fob a dress : en
  • GB512153A - Improvements in or relating to electrical condensers : en
  • US2170965A - Rail flaw detector mechanism : en
  • US2171312A - Consistency control device : en
  • US2171298A - Rate of climb indicator : en
  • US2171223A - Racket for tennis and batting games and method of manufacturing same : en
  • FR845771A - Improvements made to internal combustion engine feed systems with gasifier gases : en fr
  • GB512242A - Magneto strictive devices and electrical and electro-mechanical systems therefor : en
  • FR845783A - Apparatus for dressing the grinding wheels of valve seat grinding machines : en fr
  • PL28691B1 - N. V. Philips' Gloeilampenfabrieken, Eindhoven. Electric discharge lamp from a quartz bank. : en pl
  • US2170871A - Dustproof fixture : en
  • PL28794B1 - Wilhelm Koreska, Vienna. Tracing paper with a waxed back side and the method of its manufacture. : en pl
  • AU126139A - Improvements in or relating to a method and apparatus removing soluble impurities from solid substances : en
  • CA383612A - Railway crossing : en fr
  • CH206669A - Electric oven for cooking purposes. : de en
  • US2170970A - Piston, ring, and ring expander : en
  • CH206848A - Urinal for women. : en fr
  • GB512237A - Improvements in and relating to the control of electric winding engines and the like : en
  • FR845657A - Piston machine working with transformation or production of heat : en fr
  • FR845767A - Construction system applicable to ovens or hearths of all systems, of medium or large capacity, by means of independent refractory elements of uniform conformation and dimensions : en fr
  • AU108272B2 - Apparatus for cutting veneer or ply sheets : en
  • CH206860A - Device for remote transmission of commands, messages or measured values. : de en
  • CH206898A - Process for the preparation of a quaternary amino fatty acid amide derivative. : de en
  • DE680476C - Electric discharge lamp or fluorescent tube with mercury vapor filling and a luminophore layer attached to the inside : de en
  • DE680611C - Device for controlling the heat supply to devices : de en
  • CA383622A - Power driven scaffold : en fr
  • CA383624A - Fibrous container making apparatus : en fr
  • DE680443C - Clamping device for the knives of knife heads : de en
  • PL28760B1 - Method for cleaning soot. : en pl
  • PL28869B1 - : en pl
  • DE680258C - Iron and steel alloy for the manufacture of permanent magnets : de en
  • DE680637C - Base for mattress tamping machines : de en
  • DE680548C - Three-tier four-stroke control switch for parallel, individual and series connection of heating resistors : de en
  • FR845710A - Cylinder head for 4-stroke engines : en fr
  • FR845759A - Thermostatic control : en fr
  • US2170993A - Air conditioning : en
  • US2171338A - Building member and construction : en
  • GB512031A - Manufacture of acid wool dyestuffs of the anthraquinone series : en
  • GB512105A - Means for obtaining relative movement of aircraft parts : en
  • FR845671A - Device for automatic control of the longitudinal tilt of airplanes : en fr
  • USD116346S - Design fob a cupboard : en
  • GB511976A - Improvements in or relating to steam heating systems : en
  • FR845794A - Body or signaling element for roadways : en fr
  • GB512035A - Improvements relating to fatigue-testing machines for materials : en
  • CA383673A - Magneto generator : en fr
  • FR845569A - Process for coating, with sheets based on polyvinyl chloride, articles made of wood, cement, concrete or porous substances which do not conduct heat : en fr
  • CH206800A - Control device for axial fans. : de en
  • USD116363S - Design for : en