• GB543447A - Improvements in welding : en
  • DE717818C - Steam dome for steam boiler : de en
  • CA403066A - Pile fabric : en fr
  • FR870005A - Photographic camera with device for igniting a flash lamp operating at the same time as the shutter is released : en fr
  • DE717953C - Production of 2,3-dichlorodioxane : de en
  • US2274037A - Paper container and protector : en
  • US2274454A - Switch : en
  • US2273848A - Indicating device : en
  • US2274042A - Tooth and like brushes : en
  • US2273845A - Indexable reversible chuck mechanism : en
  • US2274204A - Process for selective oxidation or dehydrogenation of petroleum hydrocarbons : en
  • US2274118A - Battery filler : en
  • US2274254A - Remotely adjustable control : en
  • PL30390B1 - : en pl
  • US2273931A - Forging : en
  • US2274299A - Range construction : en
  • FR870028A - Improvements to directed antennas with elimination of lateral radiation : en fr
  • CA403026A - Aircraft landing gear : en fr
  • US2273909A - Printing telegraph apparatus : en
  • FR870046A - Socket particularly applicable to trolleybuses and other vehicles : en fr
  • US2274467A - Carburetor : en
  • US2274262A - Air speed indicator : en
  • DE717898C - Method and device for processing stable manure with manure to form liquid manure : de en
  • FR869928A - Film or sound image device : en fr
  • CH219752A - Device on air-cooled engines with cylinders facing each other to cool them with a fan : de en
  • US2274241A - Injector for internal combustion engines : en
  • US2274621A - Butter cutter : en
  • DE717894C - Process for the preparation of pregnendione : de en
  • FR869923A - Glue press for welt shoes : en fr
  • ES148400A3 - IMPROVEMENT IN THE CONSTRUCTION OF GLASSES FRAMES : en es
  • DE717817C - Automatic speed regulator for spin-drying : de en
  • US2274406A - Calf weaner : en
  • US2274505A - Controlled transmission circuit : en
  • US2274158A - Timing device and method : en
  • US2274572A - Hand knitting stitch holder : en
  • US2274627A - Slicing machine : en
  • GB543407A - Improvements in or relating to the conversion of electric currents : en
  • PL30324B1 - Pneumatic or oil / pneumatic shock absorber : en pl
  • DE717779C - Shielding tape for lengthways shields between the wires or wire groups of telecommunication cables : de en
  • US2274097A - Crankless engine : en
  • DE717915C - Driving device for agricultural equipment, especially soil cultivation equipment, e.g. Harrows and like : de en
  • CH219666A - Method and device for temperature measurement on moving webs and on rotating rolls and drying cylinders of paper, cardboard, cellulose and similar machines. : de en
  • DE718023C - High frequency coil with iron core : de en
  • FR870025A - Anthraquinone derivatives containing trifluoromethyl groups and process for the preparation of these products : en fr
  • GB543443A - Improvements relating to roller mills : en
  • US2273997A - Negative feedback amplifier : en
  • US2274126A - Weight removing pliers : en
  • CA403005A - Oil burner : en fr
  • ES146313A1 - IMPROVEMENTS MADE IN THE MAIN : en es
  • PL30354B1 - : en pl
  • US2273872A - Double silicates of zirconium and method of making same : en
  • US2274002A - Paint brush : en
  • US2274166A - Blade adjusting mechanism for printing presses : en
  • CH219699A - Device for measuring the overlap of phase-shifted currents, especially with contact rectifiers. : de en
  • US2273945A - Two-way speech transmission : en
  • US2273952A - Brake release control means : en
  • US2274102A - Process for making isochlorophyllin-a-sodium and the product thereof : en
  • ES148862A1 - VERTICAL STEAM BOILER OF SMOKE PIPES, PERFECTED : en es
  • DE717859C - Gas or oil heated air heater with a fan : de en
  • US2273886A - Regenerative coke oven : en
  • US2274356A - Polarity control system : en
  • US2273884A - Coil opener : en
  • PL30379B1 - : en pl
  • US2274164A - Lift truck : en
  • US2274268A - Apparatus for controlling travelling webs : en
  • DE717954C - Control valve for air brakes : de en
  • US2274119A - Automatic switching mechanism : en
  • CA403052A - Glaze for ceramic decoration : en fr
  • DE717836C - Testing device for determining the shear stress on skin areas : de en
  • DE717956C - Electromagnetically driven stepping mechanism for dialers in telecommunications systems, especially telephone systems : de en
  • FR870019A - Collector for electrical machines : en fr
  • DE717879C - Must-destroying preservative for leather goods : de en
  • DE717917C - Process for the manufacture of a weed killer suitable for spreading : de en
  • GB543466A - Improvements in and relating to the stretching of synthetic filaments and filamentary yarns : en
  • CH219662A - Process for the production of a condensation product. : de en
  • DE718000C - Sheet depositing device for two-turn high-speed presses : de en
  • US2273943A - Infant's vest and method of constructing the same : en
  • US2274008A - Electrical communication apparatus : en
  • US2274148A - Method of treating liquid egg material : en
  • ES147157A1 - A new line for cartoonists. : en es
  • CA403106A - Yeast and microorganism manufacture : en fr
  • DE717845C - Trigger device for the lens shutter of a spread camera : de en
  • US2274058A - Long-chain alktl ammonium metallo- : en
  • US2274191A - Broaching machine : en
  • US2274423A - Machine for making slivers or rovings : en
  • CH219633A - Electric iron grate. : de en
  • DE718009C - Internally heated oven with baking rooms arranged one above the other and separated by a false ceiling : de en
  • CH219697A - Circuit arrangement for polar control of a Braun tube on the Wehnelt cylinder. : de en
  • CH219684A - Ski. : de en
  • US2274357A - Socket adapter : en
  • US2274418A - Steering knuckle joint : en
  • CH219734A - Seal with regulating device on shut-off valves. : de en
  • FR869903A - : fr
  • DE717883C - Fuel valve for fuel injection engines : de en
  • ES148835A1 - A PROCEDURE FOR THE MANUFACTURE OF A PRODUCT INTENDED TO FACILITATE THE IGNITION OF FIRE : en es
  • ES148858A1 - IMPROVEMENTS IN THE CONSTRUCTION OF ELECTRICAL CURRENT CIRCUIT BREAKERS : en es
  • DE717929C - Small electrical work device : de en
  • CA403129A - Pipe fitting : en fr
  • FR869889A - : fr
  • DE717931C - Disintegration link for machine gun metal cartridge belts : de en
  • FR869965A - Hollow rivet particularly applicable to fragile materials : en fr
  • DE717857C - With Degenrohrzufuehrung equipped movable or movable soot blower for heat exchanger for heat exchanger : de en
  • PL30347B1 - : en pl
  • US2273810A - Preserved casing and method of preparing the same : en
  • US2274288A - Control mechanism : en
  • FR869977A - Method and apparatus for filling and closing sachets as well as the sachets obtained : en fr
  • GB543506A - Improvements in devices for flaring the ends of tubing : en
  • GB543424A - Improvements in and relating to the treatment of oil or fat-containing material for the recovery of oil or fat therefrom : en
  • US2274161A - Molded slider for slide fasteners : en
  • GB543491A - Drilling machines : en
  • US2274043A - Motorized bicycle : en
  • FR869886A - Starting device for carburettors of internal combustion engines : en fr
  • CH219751A - Device on vehicle engines for cooling by an axial fan. : de en
  • CH219695A - Flow meter for air, gas and steam. : de en
  • US2274323A - Sealing gasket : en
  • CA403103A - Rotary shearing mechanism : en fr
  • CH219646A - Sieve in which slots penetrate a sieve plate through its entire thickness and method for making such a sieve. : de en
  • CA403116A - Electron discharge apparatus : en fr
  • CH219726A - Steel holder. : de en
  • US2274258A - Container : en
  • SU60815A1 - Machine for waxing or similar processing of backs or other parts of a shoe : en ru
  • CA403091A - Asbestos fibre and rock separator : en fr
  • CH219690A - Automatic firearm. : de en
  • CH219857A - Process for the production of a new condensation product. : de en
  • AU8141A - Improvement in or relating to the manufacture of felts for roofing and other purposes : en
  • CA403070A - Centrifugal separator : en fr
  • CH219622A - Seating or reclining furniture. : de en
  • SU60813A1 - Hydraulic press for molding soles, insoles and similar operations : en ru
  • US2274195A - Firearm : en
  • US2274509A - Wax dispersion and method of preparing same : en
  • US2273851A - Slotted ironing table top : en
  • US2273984A - Safety plug and bypass : en
  • CH219728A - Process for preparing press mixes from curable resins. : de en
  • CH219753A - Air cooling device on engines with cylinders facing each other. : de en
  • PL30350B1 - : en pl
  • GB543379A - Improvements in or relating to the manufacture of cigarettes : en
  • GB543465A - Improvements in automatic firearms : en
  • US2273853A - Brewing : en
  • CH219642A - Process for heating ovens with wood and oven for performing this process. : de en
  • CH219777A - Vacuum switch. : de en
  • DE717805C - Process for mixing solid substances containing carbon, such as coal, with organic liquids : de en
  • CA403003A - Toggle operated press : en fr
  • CH219659A - Process for the preparation of a mixed ester-ether compound from a polyalcohol. : de en
  • CA403057A - Opaque window shade material : en fr
  • CH219608A - Process for the production of pouring stones, washing troughs, bathtubs, washing troughs, plant troughs, etc. : de en
  • ES148849A3 - AN IMPROVEMENT IN THE POWER SUPPLY TRANSFORMERS OF RADIO DEVICES : en es
  • GB543414A - Improvements in sound recording amplifier circuits : en
  • DE718058C - Method for the fine-level starting and control of motors operated in series-parallel connection, especially for rail vehicles : de en
  • FR870022A - Apparatus for performing artificial respiration : en fr
  • FR870009A - Screen mechanism or sieve : en fr
  • GB543429A - Improvements relating to electric contacts suitable for fuses : en
  • PL30307B1 - : en pl
  • US2273964A - Chin strap : en
  • FR869894A - Device for tightening and tensioning conveyor belts and the like : en fr
  • FR870004A - Cinematographic camera : en fr
  • US2274374A - Air conditioning control system : en
  • CA403050A - Gas pressure generating cartridge : en fr
  • US2274238A - Dispensing device : en
  • DE717822C - Arrangement for self-connecting telephone stations : de en
  • ES148830A1 - A PERFECTION IN TIRE COVERS : en es
  • AU114683B2 - Improvements in or relating to means for attaching lids, covers doors or like panels to boxes or other compartments : en
  • US2274291A - Compounded mineral oil : en
  • US2274475A - Closure for the handhole of burner bowls : en
  • SU60931A1 - Device for the exploration of ore by induction : en ru
  • US2274073A - Compass : en
  • DE718007C - Preservation method for sausages : de en
  • GB543479A - Improvements in tap change switches for electric transformers and similar apparatus : en
  • CH219652A - Process for the preparation of a quaternary ammonium compound. : de en
  • CA403012A - Reciprocating electric motor : en fr
  • FR869875A - Lantern cap for storm lanterns with fresh air intake : en fr
  • CH219750A - Oil cooling device on air-cooled engines. : de en
  • US2274555A - Polyvinyl halide : en
  • FR869959A - Electric stove with reversible hotplates : en fr
  • PL30329B1 - : en pl
  • GB543508A - Improvements in or relating to centrifugal separators : en
  • CH219744A - Process for supplying an acetylene gas explosion engine and device for implementing this process. : en fr
  • US2274408A - Electrically heated tool : en
  • US2273967A - Method of making coating deposit rollers : en
  • US2274480A - Motor for food mixers and the like : en
  • ES148770A3 - MACHINE FOR CUTTING GARMENTS IN SERIES : en es
  • DE717667C - Metal vapor converters : de en
  • FR869961A - Distributor for stud transformers : en fr
  • GB626284A - Improvements in radio transmitters : en
  • DE717829C - Process for manufacturing electrical machines : de en
  • US2274457A - Clutch and brake mechanism : en
  • ES146676A3 - A method for the manufacture of concrete molded articles. : en es
  • CH219614A - Boiler firing. : de en
  • PL30380B1 - Patent-Treuhand-Gesellschaft fiir elektrische Gluhlampen Cl. 21 f, .85 ,,, i m. D * H., Electric cathode ray lamp with small dimensions : en pl
  • PL30357B1 - : en pl
  • DE717958C - Device with motor drive for remote setting of the tuning means of devices for wireless communication : de en
  • DK59508C - Process for the manufacture of a detergent and cleaning agent of an abrasive and a highly foaming binder. : da en
  • GB543473A - Improvements in and relating to rotary distributors for sewage and other liquids : en
  • DE717506C - Closure for backpacks, bags or the like with a cord, rope clamp or the like. : de en
  • DE717674C - Plug valve with lubricant supply from above and below the plug and interconnected by grooves chambers : de en
  • DE717875C - Automatic flushing device for piss pools : de en
  • GB543438A - Improvements in electrical signalling systems using frequency modulation : en
  • US2274205A - Insole for shoes : en
  • US2274422A - Electrical connection : en
  • FR869874A - : fr
  • CA403065A - Vat dyeing apparatus : en fr
  • DE717984C - Practice hand grenade : de en
  • US2274134A - Fender and fender shield construction : en
  • US2274601A - Oil well pumping unit : en
  • US2274387A - Azo dye : en
  • DK59511C - Sealing strip for doors and windows. : da en
  • DE717874C - Process for the manufacture of pipes from asbestos cement : de en
  • US2274321A - Article of apparel : en
  • DE717180C - Starting device for internal combustion engines : de en
  • US2274201A - Locomotive rod bearing seal : en
  • US2274520A - Lapidary's tool : en
  • US2274001A - Locomotive ash pan : en
  • CH219597A - Device for placing cut stalk plants on motor mowers with a cutter bar attached to the front. : de en
  • CA403033A - Electric discharge device : en fr
  • FR869871A - Liquid fuel injection pump for internal combustion engines : en fr
  • FR869986A - Apparatus for honing oval and elliptical bores and, in general, non-circular bores : en fr
  • GR9792B - SMALL MECHANISM FOR HOME PROCESSING, COTTON, SILK AND THE LIKE FOR MAKING YARN. : el en
  • FR869858A - Device for checking the content of certain receptacles such as, in particular, hoppers : en fr
  • ES148868A1 - A PROCEDURE TO DECREASE THE DISTURBANCES OF RECEPTION BY COMPENSATION : en es
  • ES148851A1 - A SYSTEM OF REMOTE DRIVE OF APPLIANCES AND MACHINES THAT SHOULD BE MOVED IN AN ALTERNATIVE MOVEMENT : en es
  • US2273844A - Spindle carrier locking mechanism : en
  • ES148829A2 - A NEW SYSTEM OF METOPLASTIC JOINT : en es
  • US2274332A - Lapping or polishing machine : en
  • DE717988C - Arrangement for the transmission of messages by means of infrared or even longer-wave radiation : de en
  • FR869951A - Starting device intended for internal combustion engines for the use of acetylene gases or other detonating gases : en fr
  • US2274101A - Bacteriostatic substance and process for making the same : en
  • US2274468A - Floor covering : en
  • US2274553A - Stand for work tables : en
  • US2274613A - Refrigeration apparatus : en
  • GB543397A - Improvements in corrugated paper : en
  • CH219598A - Sealing device on windows. : de en
  • CH219780A - Device for the protection of direct current high voltage power transmission systems. : de en
  • AU114676B2 - Improvements in or relating to resilient mountings : en
  • CH219632A - Dyestuff preparation for printing on textile fabrics. : de en
  • CA403001A - Rock drill auxiliary chuck : en fr
  • CA403125A - Safety tire tube : en fr
  • US2273933A - Portable laundry rack : en
  • US2273921A - Interrupter : en
  • US2274206A - Rotary fluid meter : en
  • CH219603A - Device for heating air by means of exhaust heat from ovens or stoves. : de en
  • BE444169A - Oscillating assembly with an electro-magnetic or electro-dynamic oscillation generator supplied by the network : en fr
  • US2274424A - Sliver making machine : en
  • CA403027A - Aircraft landing gear : en fr
  • US2273995A - Lining of rubber articles : en
  • US2274426A - Method and apparatus for manufacturing pottery ware : en
  • PL30323B1 - Antoni Kielbasa, Big Hajduki Knife with a hook : en pl
  • DE717904C - Impression button switch : de en
  • CA403140A - Heat consumption measuring method : en fr
  • FR870036A - Roll film camera with reciprocal blocking device for film advance and shutter cocking : en fr
  • GB543368A - Improvements in or relating to machines for trimming inseams of shoes : en
  • USRE22031E - Mower : en
  • FR869944A - Stable support foot for motors, movable by dragging or carrying, operating devices : en fr
  • US2273896A - Reciprocating pump : en
  • CH219732A - Lock nut with mounting flange. : de en
  • FR870000A - Electronic microscope : en fr
  • AU44641A - Improvements in or relating to producer gas generators : en
  • CH219654A - Process for the preparation of an azo dye. : de en
  • DE717941C - Control device for electric motors for intermittent operation : de en
  • CH219618A - Device forming a filter for the gases leaving a gasifier used to supply an explosion engine. : en fr
  • DE717928C - Ball polishing drum for mass objects : de en
  • US2274234A - Oil seal for moving parts : en
  • US2274381A - Liquid cooled resistor : en
  • FR869917A - Continuous camera : en fr
  • US2274178A - Flashlight : en
  • FR869991A - Multiple brush holder : en fr
  • GB543365A - Improvements in or relating to pressing, stamping or like machines : en
  • GB543502A - Improvements in and relating to carriers for braiding and like machines : en
  • CH219610A - Community washing facility with washing trough and shower heads. : de en
  • CH219764A - Device for quick reversing of motors operated in Leonard circuit. : de en
  • ES146612A3 - Procedure for producing artificial wood panels. : en es
  • DE717906C - Electrodynamic vibratory drive for machines such as sieves, vibratory mills, hammers and the like. like : de en
  • GB543476A - Improvements in spraying devices : en
  • DE717862C - Device for limiting the maximum output of internal combustion engines, especially aircraft engines : de en
  • DE717491C - Process for the preparation of butanol- (1) -one- (3) : de en
  • US2274051A - Tag dispenser : en
  • DE718031C - X-ray tube anode with circulation cooling for high performance : de en
  • DE717903C - Device for the detection of an insulation fault in high-voltage networks by means of a high-frequency measuring device connected to a loop antenna : de en
  • DE718005C - Process for the discontinuous production of resoles : de en
  • FR869935A - Process for the preparation of n-sulfonylureas : en fr
  • CH219801A - Process for preparing a pyridinecarboxamide compound. : de en
  • FR869921A - Friction gear shift mechanism : en fr
  • DE717895C - Monitoring device for the water level in steam boilers : de en
  • DE717963C - Electric light bulb for air raid purposes : de en
  • CA403039A - Cellular building unit : en fr
  • US2274014A - Nut fastened installation : en
  • US2274162A - Method and apparatus for precooling freight cars : en
  • US2274282A - Interlocking means : en
  • US2273930A - Process of sulphating aluminum ore : en
  • US2274088A - Tabulator : en
  • US2274620A - Substituted aryl amides of pyridine carboxylic acid : en
  • DE717793C - Start safety device for aircraft : de en
  • AU114697B2 - Improvement in or relating to the manufacture of felts for roofing and other purposes : en
  • US2274252A - Composition : en
  • FR869933A - Floating bell for scraping animal hair : en fr
  • FR869979A - Mobile transformer station on removable trolley : en fr
  • US2274557A - Electric gauge : en
  • AU38341A - Improvements relating to liquid fuel burners : en
  • CH219703A - Device for stereophonic sound transmission. : de en
  • FR869872A - Process for preparing esters and esters obtained by this process : en fr
  • GB543486A - Improvements in starting arrangements for electric generators driven by internal combustion engines and associated with accumulators : en
  • US2273998A - Slide closure for containers : en
  • FR869992A - Compressed gas switch, multiple break : en fr
  • IE16211L - Supporting ladders, etc. on uneven ground : en
  • DE718062C - Pin anchor for hand-fired full porcelain crowns with a root post made of base metal : de en
  • US2274465A - Apparatus for manufacturing confectionery products : en
  • GB543497A - Improvements in or relating to screws and a screw driver therefor : en
  • FR869873A - Improvements to centrifugal separators : en fr
  • CH219693A - Measuring device. : de en
  • US2274477A - Tubing hanger : en
  • USRE22041E - Multicylinder pressing machine : en
  • USRE22032E - Fish bait : en
  • US2273819A - Apparatus for electrically etching metallic articles : en
  • US2273974A - Sulphonataing process : en
  • US2274524A - Method for the separation of chemically modified rosin alcohols into components : en
  • US2274567A - Circuit controlling and impulse sending device : en
  • FR869901A - Improvements made to gas turbine blades and rotors : en fr
  • FR869941A - Electric rotary regulator, in particular rotary rheostat : en fr
  • US2274120A - Process for curing vanilla beans : en
  • PL30362B1 - Erwin O. Haberfeld, Berlin f) 4K i> ftjOO : en pl
  • DE717860C - Device for fastening the retaining bolts of bearing blocks u. like : de en
  • DE717989C - Die and device for working with the die : de en
  • DE717831C - Arrangement for disconnection or short-circuit current limitation in converter conversion devices : de en
  • DE717967C - Process for the production of a coating agent which protects metals against corrosion : de en
  • SU60823A1 - The method of separation of tantalum and niobium compounds : en ru
  • US2274036A - Wire straightening device : en
  • GB543436A - Improvements in emergency automatic shut-off valves : en
  • GB543370A - Improvements in or relating to metallurgic furnaces : en
  • US2273857A - Calculating machine : en
  • FR869857A - Control, in particular for driving compressors : en fr
  • ES148859A3 - UPGRADES TO ARTICULATED TOYS : en es
  • CA403054A - Candy wrapper : en fr
  • CA403096A - Combined regenerator and catalyst chamber : en fr
  • CH219845A - Process for the production of front wheel forks, in particular for bicycles, and forks produced by this process. : de en
  • CH219658A - Process for the production of a new blue-violet basic dye. : de en
  • GB543472A - Improvements in and relating to rotary distributors for sewage and other liquids : en
  • DE717842C - Device for amplifying the sound of keyboard instruments : de en
  • GB625885A - Improvements in or relating to radio transmitters : en
  • PL30386B1 - Machine for smoothing and dehairing raw hides : en pl
  • US2273899A - Sheet-deliver y mechanism : en
  • US2274310A - Swing : en
  • US2273820A - Carrot counting machinery : en
  • US2274096A - Pressed tubular glass structure : en
  • US2274139A - Clothesline reel : en
  • US2274172A - Sand blasting machine : en
  • US2274581A - Method of producing seamless tubes : en
  • US2274608A - Attachment for tabulating machines : en
  • DE718042C - Hand tool for catching plant vermin : de en
  • CH219807A - Telegraphic receiver with storage of characters. : de en
  • DE717911C - Process for the decomposition of cyan sludge containing complex metal-cyan compounds : de en
  • US2273941A - Process for the production of resistances : en
  • US2274429A - Lockstitch sewing machine : en
  • GB543393A - Letter-press printing process : en
  • CA403120A - Electron discharge device : en fr
  • US2274046A - Knockdown chest of drawers : en
  • US2274584A - Soap composition : en
  • FR869953A - Improvements to dynamometers : en fr
  • GB543449A - Improved apparatus for heating or heating and drying fluid, granular, pulverulent or like mediums : en
  • GB543374A - Improvements in or relating to means for supplying heated air to furnace and the like fires : en
  • CA403047A - Cellulose nitrating process : en fr
  • CH219854A - Dish washing and drying equipment. : de en
  • US2274265A - Window operating mechanism : en
  • FR870032A - Advanced shooting process : en fr
  • CH219717A - Process for welding and soldering metals. : de en
  • CH219600A - Device serving for the storage and loading of goods with a plurality of changeable positions for the goods. : de en
  • DE717790C - Spray device for powdery spray material, such as metal powder : de en
  • DE717951C - Process for the production of acetaldehyde from gases containing acetylene : de en
  • DK59505C - Device for Connections between Winding and Coal Collector. : da en
  • FR870010A - Improvements to rigid electrical connections and method for making these connections : en fr
  • FR869922A - Laundry wringer with pendulum drum resiliently suspended in the frame and drive motor : en fr
  • AU114701B2 - Improvements in the seed and fertiliser hopper boxes of combines or seed and fertiliser drills : en
  • CH219705A - Watch box. : en fr
  • CA403114A - Electronic discharge device : en fr
  • US2274370A - Method and apparatus for producing musical sounds : en
  • CA403078A - Ice making apparatus : en fr
  • PL30325B1 - : en pl
  • BE442681A - : en
  • CH219741A - Power supply device for an explosion engine. : en fr
  • US2274105A - Method of manufacturing articles : en
  • US2274535A - Carrier wave system : en
  • CA403095A - Electrical connector : en fr
  • GB543463A - Improvements in or relating to the feeding of flexible disc-shaped articles such as labels, gaskets and the like : en
  • DE717825C - Unlinked, electromagnetically operated remote switch : de en
  • DE717841C - Control device for an internal combustion engine working with charging and indirect power transmission : de en
  • DE718034C - Process for the enrichment of lactoflavin : de en
  • SU60812A1 - Machine for trimming pribivki, embossing and other operations for processing belts and similar products : en ru
  • CA403132A - Heterocyclic imide compound : en fr
  • US2274466A - Temperature compensated crystal holder : en
  • DK59510C - Concrete wall of building stone. : da en
  • US2273953A - Brake system charging means : en
  • US2274081A - Ski exercising machine : en
  • SE103803C1 - Electric switch with arc extinguishing through extinguishing gas generated under the influence of the arc. : en sv
  • US2274028A - Method of making shoes : en
  • US2274174A - Clutch member : en
  • US2274440A - Parking bumper for motor vehicles : en
  • US2274519A - Hydraulic cylinder construction : en
  • DE717832C - Device for controlling rectifiers : de en
  • DE717978C - Device for the uninterrupted cleaning of suspensions or sludge, especially fibrous materials from the paper industry : de en
  • FR869940A - Wire guide : en fr
  • DE717770C - Use of copper alloys for parts exposed to sliding : de en
  • DE717899C - Automatic or semi-automatic interlocking circuits : de en
  • GB543498A - Improvements in steam or gas turbines : en
  • DE718004C - Double window with tiltable ventilation panes : de en
  • DE718022C - Antenna arrangement for generating radiation for the implementation of aircraft blind landings : de en
  • US2274517A - Apparatus and method for fusing earth material in place : en
  • FR869883A - Metal electrolysis apparatus : en fr
  • GB543376A - Improvements in dipole aerial systems : en
  • US2274382A - Woman's foundation garment : en
  • US2274586A - Cathode ray tube : en
  • DK59512C - Procedure and Apparatus for Converting Sound Vibrations to Electrical Vibrations with an Amplitude Range Reduced in Relation to Sound Vibrations. : da en
  • SU60864A1 - Switchgear for underground gas generator : en ru
  • DE717720C - Machine for closing wire wraps : de en
  • DE717723C - Control device for arc lamps, especially high-performance arc lamps with a cathode that can be displaced in a carbon tube : de en
  • DE717787C - Structural waterproofing : de en
  • US2274367A - Age resisting rubber composition : en
  • DE718045C - Heating rollers : de en
  • DE717947C - Process for the production of box-shaped driven piles and box-piling wall piles from Z-pile parts : de en
  • DE717909C - Electric radiation lamp : de en
  • FR869897A - : fr
  • FR869900A - Process for preparing aliphatic polymers of acetylene : en fr
  • FR870045A - lock nut : en fr
  • FR870002A - Coupling device for subscribers of telewriting exchange installations : en fr
  • ES140343A1 - Procedure for the manufacture of rubber valve stems for articles that can swell. : en es
  • DE718012C - Process for the extraction of sulfur : de en
  • US2274401A - Agitating and aerating means for flotation cells : en
  • DE717939C - Push lock for perforating units of printing machines : de en
  • US2274345A - Packaging method and machine : en
  • US2274056A - Extruded anode : en
  • GB543480A - Improvements in or relating to steam heating systems : en
  • DE717782C - Device for the control or ignition of converter vessels : de en
  • US2274276A - Valve : en
  • US2274388A - Hydrogen absorber : en
  • US2274412A - Method of preparing free aliphatic bases : en
  • FR870016A - Pulverized fuel fireplace : en fr
  • ES148767A1 - IMPROVEMENTS IN THE MANUFACTURE OF MATRICES TO PRINT DIRECTIONS, WITH PARTS OF INDEX OR MOVABLE TABS : en es
  • AU5141A - Improvements in footwear : en
  • DE717918C - Device for introducing the pulverulent fuel dust into the working cylinder of an internal combustion engine : de en
  • ES148831A3 - A MECHANICAL PROCEDURE FOR THE CONSTRUCTION OF MOVABLE FIGURES : en es
  • PL30389B3 - : en pl
  • CA403017A - Flat screen discharge element : en fr
  • US2274405A - Luminaire : en
  • US2274527A - Hydraulic control circuit and mechanism : en
  • CH219601A - Rail fastening. : de en
  • CA403138A - Multicellular glass manufacture : en fr
  • DE717999C - Process for purifying tricresyl phosphate : de en
  • DE717888C - Electric spring hammer : de en
  • FR869892A - Oxide layer cathode and method for its manufacture : en fr
  • FR869994A - Numbered disc counter giving two different indications : en fr
  • US2273821A - Sintering machine : en
  • US2273876A - Apparatus for indicating tilt of cameras : en
  • US2274061A - Esterification process : en
  • US2274264A - Aerial mine : en
  • PL30364B1 - Stahlwerke Bnininghaus Aktiengesellschaft, Werdohl i. W. Resilient pull-bumper device for vehicles, especially for mine carts : en pl
  • US2273992A - Air conditioning system : en
  • US2274209A - Furnace : en
  • US2274259A - Latch lock : en
  • ES148841A1 - SYSTEM FOR SEPARATING THE CENTRIFUGAL AND ANALOGUE PUMPS THROUGH THE SAME PUMP OR ANOTHER CENTRIFUGAL OR ANALOGUE PUMP : en es
  • CA403102A - Pigment and paper : en fr
  • DE718003C - Disinfectants : de en
  • GB543398A - Improvements in or relating to looms for weaving : en
  • DE717837C - Method and device for determining the damage line of metallic materials : de en
  • US2274110A - Apparatus for treating polarized light : en
  • US2274452A - High speed rotary flying shear : en
  • US2274376A - Control valve mechanism for musical wind instruments : en
  • GB543495A - Method or process of agglomerating and decarbonizing cast iron and steel borings, turnings and the like by means of sintering : en
  • SU60913A1 - Steel refining furnace : en ru
  • US2274292A - Refrigerating system : en
  • DE717976C - Device for soldering long folded sheets : de en
  • GB543441A - Improved glass compositions and seals for sodium vapour electric discharge lamps made therewith : en
  • DE717852C - Lubrication of the control valve of compression refrigeration machines : de en
  • DE718008C - Control for compressed air accumulators : de en
  • CH219638A - Metal fitting strips for the heels of boots and shoes. : de en
  • DE718050C - Device for mixing oil and fuel in a container : de en
  • PL30375B1 - : en pl
  • CH219630A - Process for the production of artificial threads from protein. : de en
  • DE717948C - Process for the production of uniform mirrors with figure surfaces from metal-covered embroidery thread : de en
  • FR869924A - Press with elements arranged in a row for gluing the soles to shoes or shoes : en fr
  • US2273849A - Parasiticidal material : en
  • US2274436A - Steam valve : en
  • PL30361B1 - : en pl
  • US2273914A - Radio navigation system : en
  • FR869936A - Panel improvements : en fr
  • US2274024A - Apparatus for washing dishes, silverware, and the like : en
  • US2274094A - Refining process : en
  • US2273978A - Control circuit for gas triodes : en
  • US2274316A - Automatic suction control of timing : en
  • US2274463A - Preparation of alkali cellulose : en
  • GB543409A - Improvements in thermostatic timing control devices : en
  • US2274257A - Connector : en
  • US2274404A - Latch for luminaires : en
  • FR870024A - Roll film camera without film passage window : en fr
  • DE717872C - Centrifuge for removing bullets and powder charges from cartridge cases : de en
  • CA403053A - Polymeric product : en fr
  • CH219779A - Switching device for eliminating arcs in high-voltage networks and systems. : de en
  • US2273826A - Fluid treating apparatus : en
  • US2274084A - Valve for pumps : en
  • US2274086A - Testing device for internal combustion motors : en
  • USRE22039E - Orchard sprayer : en
  • FR869975A - Coupling device for telegraphic transmission of messages for submarine cables : en fr
  • US2274532A - Safety fuel system fob internal : en
  • US2274214A - Coin-freed vending machine : en
  • US2273910A - Printing telegraph apparatus : en
  • PL30392B1 - The method of producing the adhesive : en pl
  • US2274160A - Closure construction : en
  • US2274591A - Match book brace : en
  • PL30365B1 - woicL a o o Siemens & Halske Aktiengesellschaft, Berlin-Siemensstadt jj (Connection system for adjusting the gain level : en pl
  • US2274359A - Cotton duster : en
  • US2274261A - Shoulder pad : en
  • US2274226A - Broaching machine : en
  • US2274215A - Electronic microscope : en
  • CH219616A - Device to activate the draft of a chimney. : en it
  • CH219865A - Process for the production of an acidic wool dye of the anthraquinone series. : de en
  • US2274351A - Fabricated dynamoelectric machine : en
  • US2273906A - Pouch : en
  • CH219870A - Waterproof winding watch. : en fr
  • PL30353B3 - Device for adjusting the amount of injected fuel in internal combustion engines operating at different heights : en pl
  • CA403056A - Organic product and process : en fr
  • ES148852A1 - PROCEDURE OF REPRODUCTION THROUGH A ROTARY PRINTING CLICHE, WITH AUTOMATIC INK FEEDING : en es
  • US2273951A - Combined fog and driving light : en
  • US2274398A - Attachment plug : en
  • AU44441A - Improvements in or relating to means for attaching lids, covers doors or like panels to boxes or other compartments : en
  • US2274561A - Trimmer : en
  • CA403013A - Sander and levelling machine : en fr
  • ES148683A3 - A PROCEDURE FOR THE MANUFACTURE OF A NEW TYPE OF SECAFIRMS : en es
  • US2273904A - Electric heating apparatus : en
  • CA403137A - Glass article manufacture : en fr
  • DE717867C - Device for keeping the cutting speed constant when the working diameter changes, especially with turning jaws : de en
  • CA403134A - Silica removing process from minerals, etc. : en fr
  • US2273835A - Apparatus for treating fluid materials : en
  • US2274554A - Electrical space discharge tube : en
  • AU114680B2 - Improvements in or relating to cutters for use in dry-shaving apparatus : en
  • US2274054A - Tailor's square, and method for drafting patterns : en
  • US2274077A - Leg connection : en
  • US2274027A - Mattress : en
  • US2274075A - Delivery machine for blanks and the like : en
  • US2274187A - Roller bearing axle construction : en
  • US2274631A - Welding torch : en
  • FR869984A - Cooling plant, in particular for superheated steam from internal combustion engines : en fr
  • FR870041A - Stabilization device for automatic control systems working mechanically or electrically : en fr
  • GB543412A - Improvements in heating means for use in connection with drying stoves and the like : en
  • US2273962A - Machinery packing : en
  • US2274305A - Lubricating composition : en
  • CH219819A - Receiver with automatic low-frequency bandwidth control. : de en
  • DE717998C - Markers made of flexible fabric : de en
  • DE717802C - Segment lock for water passages on double-walled lock gates : de en
  • US2274511A - Drinking fountain attachment for faucets : en
  • CA403076A - Valve operating mechanism : en fr
  • FR869882A - Process for the recovery of copper, nickel and other metals which accompany them in non-ferrous alloys : en fr
  • FR869929A - Mobile furnace for carbonization of wood with recovery of by-products : en fr
  • CA403048A - Cellulose glycolic acid : en fr
  • CA403088A - Disc harrow : en fr
  • DE718016C - Device for moving conveyor wagons, primarily in underground operations : de en
  • DE718010C - Map pocket with laterally staggered finding strips between the pocket walls : de en
  • CA403064A - Piston packing : en fr
  • US2274294A - Window cleaning system : en
  • FR870033A - New device for mounting sole or heel elements, under a shoe sole : en fr
  • GB543361A - Improvements in immersion heaters for liquids : en
  • CH219617A - Cleaning device for gases. : de en
  • DK59509C - Central heating boiler of the Combustion type. : da en
  • CH219847A - Rail vehicle with bogies. : de en
  • US2274522A - Bowling ball : en
  • CA403121A - Electron discharge device : en fr
  • DE717925C - Stopwatch-type device for determining the length of a film before it is made : de en
  • FR869947A - Improvements made to devices for the production of high electrical voltages : en fr
  • GB543415A - Improvements in or relating to paper making machines : en
  • US2274072A - Spring steel heating, severing, and forming machine : en
  • CH219692A - Device for generating changes in length of a route, in particular for measuring and calibration purposes. : de en
  • CA403035A - Free air fan : en fr
  • US2274074A - Safety block attachment : en
  • CA403018A - Envelope : en fr
  • CH219738A - Multi-stage axial compressor. : de en
  • US2274225A - Apparatus for handling concrete : en
  • US2274470A - Fountain pen : en
  • US2273859A - Making ceramic articles : en
  • US2274337A - Refrigerating apparatus : en
  • US2274479A - Device for measuring fluid pressures : en
  • CA403011A - Power generator unit : en fr
  • CH219628A - Closing cap for vessels such as bottles, glasses, pots, tubes, etc. : de en
  • ES146653A1 - Procedure for obtaining steels with a high degree of micrographic purity. : en es
  • US2273834A - Powdered titanium metal : en
  • US2273937A - Traction lug : en
  • CH219669A - Process for the production of packaging from impregnated materials. : de en
  • US2274228A - Articulated car construction : en
  • DE717949C - Bed spring sorting machine : de en
  • DE718039C - Dissolving, softening, gelatinizing and swelling agents : de en
  • PL30387B1 - Method of descaling hides : en pl
  • CH219856A - Process for the production of a new condensation product. : de en
  • US2274611A - Production of chloroisoprene : en
  • PL30317B1 - Device for testing the uniformity of the camshaft setting of individual cylinders of a multi-cylinder steam or internal combustion engine : en pl
  • CH219702A - Method for producing sound tape matrices. : de en
  • DE717819C - Device for keeping the overheating temperature constant in continuous tube steam generators : de en
  • US2274250A - Process for tendering steak : en
  • US2273981A - Analysis of gases : en
  • US2274380A - Casting float : en
  • DE717788C - Device for the electrical actuation of a shut-off valve for the fuel supply to spray gasifiers : de en
  • US2274112A - Semibright nickel deposition : en
  • US2274069A - Steering wheel attachment : en
  • US2274197A - Sleeve valve internal combustion engine : en
  • PL30321B1 - : en pl
  • US2273989A - Brake : en
  • US2274462A - Liquid dispensing means and stove incorporating same : en
  • PL30345B1 - Device for screw ships, for improving the propulsion of the screw : en pl
  • AU114682B2 - Adjustable antenna devices : en
  • CA403107A - Sugar solution processing : en fr
  • PL30372B1 - L G, Farbenindustrie Aktiengesellschaft, Frankfurt n. M. Multi-layered photographic material for color photography and cinematography : en pl
  • DE717834C - Gauze plaster bandage : de en
  • CA403060A - Frequency dividing circuit arrangement : en fr
  • FR869976A - Telecommunications cable that can withstand strong mechanical stresses : en fr
  • FR870037A - Removable tile for floors : en fr
  • GB543400A - Improvements in or relating to electron discharge devices incorporating high-frequency resonators : en
  • FR869966A - Process for preparing oximes : en fr
  • PL30346B3 - : en pl
  • CH219846A - Shoe brake, especially for coaster brake hubs. : de en
  • DE717813C - Maltese cross gear : de en
  • US2273883A - Vacuum cleaner : en
  • US2274428A - Vise mechanism : en
  • US2274152A - Air conditioning system : en
  • US2274212A - Reflecting sign and reflecting unit therefor : en
  • US2274391A - Refrigerating system and evaporator therefor : en
  • AU112741A - Improvements relating togas fires : en
  • BE444126A - : en
  • DE717843C - Makeshift tripod for cameras : de en
  • PL30340B1 - : en pl
  • US2274137A - Bearing assembly : en
  • US2274464A - Method of and apparatus for manufacturing confectionery products : en
  • US2273830A - Method of making nozzle sprayer plates : en
  • CH219636A - Process for making a police hat. : de en
  • CA403044A - Dimethylol-ester resinous reaction product : en fr
  • FR870042A - Installation of circuits for teleprinter communications installations with long distance lines isolated from office circuits : en fr
  • GB543426A - Manufacture of polyamides : en
  • GB543406A - Improvements relating to the removal of fluorides from water : en
  • DE717864C - Turning device for internal combustion engines : de en
  • CA403075A - Glass fibre production : en fr
  • CH219644A - Device for boiling drying oil. : de en
  • PL30331B1 - : en pl
  • US2274150A - Manufacture of rubber hydrochloride films : en
  • US2274399A - Starting switch : en
  • US2274594A - Apparatus for removing impurities from internal combustion engine exhaust gases : en
  • CA403111A - Ticket dispensing machine : en fr
  • US2274192A - Changeable letter sign : en
  • US2274146A - Spindle mounting : en
  • DE717876C - Process for the extraction of starch from the rhizomes and leaves of the Typhaceae : de en
  • CA403097A - Multi-pane glazing unit : en fr
  • CH219660A - Process to improve the continuous manageability of polyisoolefins. : de en
  • CH219792A - Electric oven. : de en
  • GB543364A - Improvements in packaging machine : en
  • CA13247S - Pattern to be applied to objects of chinaware or earthenware : en
  • US2274153A - Air conditioning system : en
  • US2274229A - Kange heater : en
  • US2273939A - Degreasting machine : en
  • US2274089A - Electric convenience outlet and contact means therefor : en
  • US2273970A - Combination hay buck and stacker : en
  • US2274420A - Knuckle joint : en
  • US2274157A - Carbon holder for electric arc welding devices : en
  • CH219710A - Process and furnace for the recovery of metal from foil waste. : de en
  • CA403029A - Self cleaning filter : en fr
  • CH219813A - Built-in microphone capsule with moisture protection. : de en
  • CA403045A - Cellulosic structure : en fr
  • DE717923C - Washing device for flowing pulp suspensions : de en
  • CH219645A - System for recovering heat from hot, unevenly accumulating solution quantities. : de en
  • US2274029A - Flow responsive device : en
  • DE717773C - Direction indicator with bevel arm swinging up and down in the display position : de en
  • DE717799C - Self-operated firearm, especially handgun : de en
  • CH219849A - Process for the production of hollow metallic propeller blades. : de en
  • DE718044C - Vibrating mill for grinding all kinds of goods : de en
  • US2274127A - Expansion valve : en
  • AU114691B2 - Improvements in discharge-operated thermal switches : en
  • DE717856C - Process for the production of sulfur dyes : de en
  • US2274242A - Adjustable curtain fixture : en
  • USRE22034E - Variable pitch propeller mechanism : en
  • US2274318A - Air brake : en
  • US2274587A - Carburetor : en
  • US2273824A - Apparatus and method of making plastic binders : en
  • US2273911A - System of radio communication by means of polarization modulation : en
  • US2273908A - Gear cutter : en
  • US2274109A - Electrical brake control mechanism : en
  • US2274326A - Hand loom : en
  • US2274626A - Slicing machine : en
  • US2274230A - Automatic lathe : en
  • US2274339A - Means for automatic weight control in well drilling : en
  • US2274306A - Fruit juicing apparatus : en
  • US2274540A - Locking slider for slide fasteners : en
  • CA403004A - Elevator guide shoe : en fr
  • ES148678A1 - A NEW TOY : en es
  • US2274585A - Chair : en
  • US2273927A - Strainer : en
  • US2274266A - Isosensitive regulator : en
  • US2274313A - Transfer car : en
  • US2274502A - Mulling apparatus : en
  • CA403061A - Two-speed sander : en fr
  • CH219790A - Brake field tube for generating ultra-short waves. : de en
  • GB543422A - Improvements in or relating to high-frequency induction furnaces : en
  • FR869864A - Card combined with a spinning machine : en fr
  • ES146312A1 - Procedure for obtaining new magnesium alloys. : en es
  • US2273954A - Drill jig : en
  • US2274132A - Oil reclaiming apparatus : en
  • US2274508A - Filled bag closing units : en
  • FR869989A - Hollow insulator : en fr
  • CH219696A - Apparatus for determining forces such as weighing, testing the strength of materials and the like. : de en
  • US2274138A - Electric illuminating device : en
  • GB543416A - Improvement in method of welding : en
  • CA403123A - Frequency metre : en fr
  • CH219824A - Tube. : de en
  • CH219760A - Device for lubricating the valve control linkage of internal combustion engines. : de en
  • CH219827A - Spray gun working with compressed air for oil and similar liquids. : de en
  • DE717955C - Arrangement for automatic volume control for teleraphy receivers : de en
  • US2274628A - Slicing machine : en
  • CH219687A - Amusement ride. : de en
  • GB543411A - Potato harvester : en
  • US2273846A - Process for treating hydrocarbons : en
  • US2274079A - Piezoelectric crystal apparatus : en
  • US2274491A - Gear finishing tool : en
  • US2274612A - Reflector and fixture : en
  • AU301941A - Composition and method of treating cast iron : en
  • DE717833C - Refractory mass for molds or models for the manufacture of ceramic tooth replacement parts : de en
  • US2274220A - Refrigerated dough mixer : en
  • GB543369A - Improvements in knickers : en
  • US2274531A - Collapsible end leaf construction for tables : en
  • US2274604A - Valve lifter : en
  • FR869972A - Switching device for gear change with toothed pinions : en fr
  • FR869876A - : fr
  • US2274025A - Lubricant : en
  • FR869925A - Driver's seat, especially for tractors and agricultural machinery : en fr
  • DE717797C - Load shedding device for aircraft : de en
  • GB543475A - Improvements in or relating to colliery and like overwind gear : en
  • FR870038A - Vat dyes and process for preparing these dyes : en fr
  • ES148857A1 - PROCEDURE FOR THE PRESERVATION AND DESULFITATION OF SUGARED JUICES AND ALCOHOLIC LIQUIDS : en es
  • US2274047A - Screen : en
  • FR869981A - Flexible suspension by independent wheels for cycles and motorcycles : en fr
  • US2274147A - Motor pot spindle : en
  • US2274275A - Inside caliper : en
  • US2274430A - Turning gear for internal combustion engines : en
  • ES148827A3 - A PROCEDURE FOR THE MANUFACTURE OF PECTORAL SUPPORTS OR BRAIDES : en es
  • CH219814A - Device for setting the degree of modulation of wireless transmitters. : de en
  • US2274330A - Safety cable reel : en
  • CH219822A - Circuit for influencing the modulation depth of an amplitude-modulated oscillation. : de en
  • PL30318B1 - The method of isolating the olfinins from their mixtures with the appropriate saturated hydrocarbons and possibly with methane and hydrogen : en pl
  • PL30378B1 - : en pl
  • US2273881A - Variable airfoil : en
  • CA403100A - Piston ring : en fr
  • CH219859A - Process for the preparation of a condensation product from trimethylhydroquinone and allyl halide. : de en
  • US2274071A - Interconnection system : en
  • US2274269A - Jewelry attachment : en
  • US2274327A - Condenser construction : en
  • CH219602A - Oven. : de en
  • ES148861A1 - A SYSTEM OF AUTOMATIC DRIVING OF TOOLS AND TOOLS AND OF SETS OF THEM FOR THE REPLACEMENT OF MANUAL WORK BY THE MECHANICAL : en es
  • PL30370B1 - : en pl
  • US2274560A - Vacuum cleaner attachment : en
  • CA403025A - Bonded abrasive : en fr
  • US2274279A - Multiple pressure device for molding plastics : en
  • DE717839C - Device for clamping strain gauges : de en
  • US2274169A - Multiple spot welding : en
  • US2274333A - Driving mechanism for sleeve valves : en
  • US2273949A - Traction device for motor vehicles : en
  • US2274017A - Lack-of-liquid safety device for liquid heaters : en
  • US2274390A - Control device for electric irons : en
  • US2274558A - Solenoid switch operator : en
  • US2274568A - Cellulose derivative compositions : en
  • FR869942A - Multi-layered brooms, with internal compensation : en fr
  • FR869869A - Improvements to direction finding frames with magnetic core and, in particular, core of the agglomerated type : en fr
  • FR869911A - Device for use as an icebox or Norwegian kettle with expandable pad closure : en fr
  • GB543358A - Process for the production of artificial fibres from fibre-forming liquids, especially acetylcellulose, by the application of a high-potential electric field effecting the formation of the fibres : en
  • US2274525A - Tying machine : en
  • GB543454A - Improvements in or relating to internal combustion engine fuel injectors : en
  • GB543500A - Improvements in or relating to electrical firing devices : en
  • US2274530A - Automatic light intensity control for sound apparatus : en
  • FR870043A - High-lift device improving, and facilitating at the same time, the lift, take-off, flight, vertical landing of the airplane, and its use as an electric generator : en fr
  • US2273912A - Vibratory conveyer or motor and means for controlling same : en
  • GB543461A - Improved resin-forming compositions : en
  • FR869962A - Cooler : en fr
  • US2274013A - Time delay relay : en
  • US2274281A - Safety stop for hoists : en
  • US2274368A - Method of preserving rubber and product obtained thereby : en
  • US2274629A - Nitro-type ignition promotor for diesel fuels : en
  • CH219749A - Motor housing for air-cooled motors. : de en
  • PL30366B1 - A method of producing a coating with the appearance of a sphagite on ceramic objects : en pl
  • AU54841A - Improvements in discharge-operated thermal switches : en
  • CA403022A - Soldering iron stand : en fr
  • US2274049A - Calculating machine : en
  • AU114690B2 - Improvements in or relating to producer gas generators : en
  • US2274548A - Cornhusking machine : en
  • SU60867A1 - Shutter for self-unloading hatchways : en ru
  • US2274544A - Printing of textile fabrics : en
  • CH219850A - Process for the production of hollow metallic propeller blades. : de en
  • CA403009A - Engine muffler : en fr
  • US2274202A - Foundation garment : en
  • FR870006A - Anti-theft device for bicycle : en fr
  • US2273963A - Switching device, especially for machine tools : en
  • CH219631A - Dishwasher. : de en
  • CH219713A - Process for the production of alloys containing zirconium. : de en
  • CH219816A - Rotary selector in telephone system. : de en
  • US2273816A - Marking machine : en
  • ES148624A3 - A PROCEDURE FOR THE CONSTRUCTION OF REMOVABLE HEATERS : en es
  • CA403063A - Fabric knitting method : en fr
  • PL30319B1 - A method of producing a tape from artificial fibers : en pl
  • GB543485A - Method of and means for reproducing a television picture with cathode ray tube and separate light source : en
  • US2273985A - Cash register : en
  • US2274518A - Vehicle suspension : en
  • US2274373A - Process of refining mineral oils : en
  • US2274485A - Color mixing device : en
  • US2273988A - Timing of electromagnetic switches : en
  • CH219664A - Process for the production of surface layers on objects made of alloyed steels. : de en
  • DE717940C - Process for removing carbon oxide from gases or gas mixtures containing organic sulfur compounds by means of steam catalysis : de en
  • DE718026C - Fabric hose provided with binding agent that solidifies the fabric for electrical lines, in particular for connection lines in brushes of electrical machines : de en
  • FR869877A - Eraser holder : en fr
  • DE717986C - Alarm system with a plurality of fire and guard alarms lying in a common loop : de en
  • GB543417A - Article of apparel : en
  • FR870039A - : fr
  • CH219853A - Device for operating motor vehicles with acetylene as fuel, which is generated in acetylene generators arranged on the vehicle. : de en
  • US2274344A - Package and method of making the same : en
  • US2274419A - Thrust ball bearing : en
  • SU60947A1 - Device for discharging a hydrogenerator : en ru
  • GB543439A - Improvements in or relating to the construction of seatings and the like : en
  • DE671154C - Chain ship with water motor drive : de en
  • GB543390A - Improvements in lighting units : en
  • US2273976A - Vulcanized rubber joint : en
  • US2274571A - Aircraft control : en
  • CA403083A - Synthetic resinous material : en fr
  • US2274210A - Piston ring scale : en
  • BE444152A - : en fr
  • CA403090A - Calculating equipment : en fr
  • US2273856A - Fluid control device : en
  • US2273866A - Stereophonic sound recording and reproduction : en
  • US2273948A - Dispensing apparatus : en
  • US2274378A - Control system : en
  • US2274006A - Wash-box seal for gas generating sets : en
  • PL30339B1 - : en pl
  • US2274007A - Boring tool : en
  • PL30393B3 - : en pl
  • ES147346A1 - A procedure to hold the brushes of the masons, suppressing the use of the strings that are currently used. : en es
  • US2273870A - Machine tool : en
  • US2274319A - Hatch construction : en
  • CH219811A - Zone determiners in telephone systems, in particular for charge control in coin-operated telephones with network group traffic. : de en
  • CH219796A - Burr for dentistry. : en fr
  • PL30320B1 - : en pl
  • DE717920C - Bearings for spring roller mill rollers : de en
  • CH219635A - Slider on zippers. : de en
  • DE717942C - Control for hoists : de en
  • FR869856A - Method and device for switching gear changes with toothed gears : en fr
  • FR869878A - Process for converting alpha, beta unsaturated carbonyl compounds into corresponding unsaturated alcohols : en fr
  • FR870026A - Radio receiver that can be switched on and off remotely : en fr
  • US2273923A - Separation of organic compounds : en
  • US2274563A - Reversing switch : en
  • FR869927A - Advanced transporter mechanism : en fr
  • US2274062A - Differential pressure unit : en
  • US2274057A - Process for the oxidation of aliphatic hydrocarbons : en
  • US2274064A - Preparation of carbon monoxid-hydrogen gas mixtures for hydrogenation : en
  • US2274510A - Combination sleeve and mitten : en
  • GB543360A - Manufacture of resinous of condensation products : en
  • BE444180A - : en fr
  • DE717654C - Tilt control for separating suction cups on sheet feeders : de en
  • US2274208A - Toy airplane : en
  • DE717946C - Oar lock for windows and doors : de en
  • GB543399A - Improvements in or relating to the reduction of magnesium : en
  • DE718027C - Connector : de en
  • DE717777C - Process for the preparation of reactive esters of oxyalkylamidines : de en
  • DE717908C - Electromagnetic coil system for deflecting cathode rays in two mutually perpendicular directions : de en
  • FR870040A - Grapple for lifting loads : en fr
  • GB543367A - Improvements in or relating to printers' column rules or spacers and printers' chases : en
  • GB543490A - Improvements in or relating to the manufacture of textile yarns or cords : en
  • DK59517C - Method and Apparatus for continuous coating of confectionery, in particular with chocolate. : da en
  • FR869949A - Improvements to stay cable insulators : en fr
  • FR870008A - Method for calibrating the ends of tubes and calibrating device intended for its implementation : en fr
  • US2274273A - Well spider : en
  • CA403030A - Beading strip : en fr
  • CA403089A - High frequency transmission modifying network : en fr
  • US2274360A - Picker for textile fibers : en
  • US2273929A - Recovery retort for mercury and the like : en
  • US2274255A - Fishing line : en
  • US2274045A - Extensible luggage : en
  • US2274194A - Apparatus for and method of electron discharge control : en
  • US2273959A - Container : en
  • CH219724A - Drilling device with automatic feed and fast reverse. : de en
  • CH219830A - Bearings on swivel block couplings, in particular for motor vehicles. : de en
  • CH219742A - Internal combustion engine with piston pump system for conveying lubricant. : de en
  • CH219776A - Device on installation devices for adapting the same to the plaster thickness. : de en
  • PL30363B1 - Erwin O. Haberfeld, Berlin Typewriter table : en pl
  • CH219613A - Transportable plant for producing charcoal. : de en
  • CH219770A - Multi-phase high voltage transmission line. : de en
  • CH219808A - Method for sending telegraphic messages using the five-letter alphabet and with the help of memory strips. : de en
  • US2274590A - Suction conveying or feeding apparatus : en
  • FR869974A - Handling device for alternating current telegraphy with dry rectifiers : en fr
  • CH219797A - Elevator bracket for hospital bed. : de en
  • US2274482A - Fastener device : en
  • ES148622A3 - A DEVICE FOR THE GAME OF BALL TO PADDLE : en es
  • FR869868A - Improvements in methods and devices for observing or controlling movement phenomena in electrodynamic loudspeakers : en fr
  • FR869853A - Automatic control of the condenser circulation pump operating normally with natural circulation of water for ship propellants : en fr
  • CA403087A - Disc harrow : en fr
  • CH219864A - Process for the preparation of a dye of the anthraquinone series. : de en
  • BE444106A - : en fr
  • DE717812C - Grindstone : de en
  • CA403000A - Sash window : en fr
  • CH219701A - Arrangement for converting a measured value that can be represented by a torque into an electrical current with the aid of a compensation device. : de en
  • DE717975C - Potato peeling machine : de en
  • ES148500A3 - A PROCEDURE TO SANITIZE AND GIVE A BETTER PRESENTATION TO THE SERVICES OF CAFES, BARS, RESTAURANTS AND SIMILAR ESTABLISHMENTS : en es
  • US2274506A - Chair : en
  • US2273812A - Dandelion and weed puller : en
  • US2274469A - Room heater : en
  • US2273850A - Specific gravity recording system : en
  • US2274383A - Electric water heater : en
  • CH219836A - Device on vehicles with rear engine for cooling the same with air. : de en
  • PL30336B1 - : en pl
  • AU114692B2 - Improvements relating togas fires : en
  • US2274451A - Receptacle for garbage cans : en
  • US2274087A - Electricity conductor unit : en
  • US2274274A - Fluid pump and metering device : en
  • US2273861A - Screw driver : en
  • US2273918A - Container and part therefor : en
  • US2273932A - Game : en
  • DE717916C - Potato squeezer with a double-sided, spring-loaded plunger : de en
  • FR869861A - Infusible nozzle gasifier fore-hearth : en fr
  • FR869995A - Device for recovering by-products for mobile carbonization furnace : en fr
  • CH219786A - Process for producing an oxide cathode for electrical discharge tubes and oxide cathode produced by this process. : de en
  • US2274355A - Method of producing card assemblies : en
  • US2274489A - Electrical apparatus : en
  • GB543380A - Improvements to blades for safety razors : en
  • US2274095A - Resin-bearing molded pulp article : en
  • US2273935A - Pencil lead : en
  • CA403110A - Power transmission device : en fr
  • FR870030A - Key for calculating machines : en fr
  • GB543458A - Preparations for cleaning removable dentures : en
  • FR869998A - Dry battery with paper sleeve : en fr
  • US2274203A - Filing equipment : en
  • SU60904A1 - Method for detecting deformation in metal articles made of ferromagnetic material : en ru
  • US2273969A - Slicer : en
  • US2274116A - Optical system : en
  • GB543469A - Machines for use in examining or assorting metallic or other plates or sheets, and particularly tinplates : en
  • DE717778C - Process for displacing peatland : de en
  • DE717826C - Multi-point overlay of extensive, especially meshed power networks : de en
  • DE717977C - Stapling device with two toothed stapling wheels : de en
  • US2274108A - Burial vault : en
  • US2274547A - Insect trap : en
  • US2274236A - Mold : en
  • US2274364A - Voltage regulator circuit : en
  • FR869863A - Coke extinguishing method and device : en fr
  • FR869904A - Electron microscope : en fr
  • US2273873A - Adhesive surgical dressing and method of applying the same : en
  • US2274500A - Washing apparatus : en
  • US2274623A - Tape dispenser : en
  • CH219737A - Device for the transmission of rotational movement. : en fr
  • CA403040A - Metal window sash : en fr
  • CH219655A - Process for the preparation of an ester salt of a leuco vat dye which is readily soluble in water. : de en
  • DE717827C - Device for earth fault extinguishing and / or for influencing the position of the earth point : de en
  • US2274015A - Variable reactance transformer : en
  • CH219712A - Process for the production of press products. : de en
  • US2273860A - Insect repellent : en
  • US2274145A - Temperature compensating metering valve : en
  • US2274177A - Fuel burner control system : en
  • US2273825A - Lead aluminate pigments and paints and method of making same : en
  • US2274044A - Duplicating apparatus : en
  • US2274247A - Heat exchanger : en
  • US2274453A - Drain flushing apparatus : en
  • US2274599A - Sound control : en
  • CH219781A - Multiple protective spark gap for high-voltage systems. : de en
  • AU114699B2 - Improvements in and relating to seed and fertilizer broadcast distributors : en
  • USRE22038E - Preparation of antirachitic : en
  • US2274224A - Pumping system : en
  • US2274348A - Heating device : en
  • US2274488A - Sales promotional check : en
  • DE717952C - Process for the preparation of adipic acid, its homologues and halogen substitution products : de en
  • CH219832A - Fluid pressure servo control device for hydraulic vehicle brakes. : en fr
  • US2274499A - Birthday cake and candle support : en
  • CA403135A - Aryl-methyl ether of b-methylcholine salts : en fr
  • US2273855A - Film handling and sound apparatus and control thereof : en
  • US2274492A - Heating apparatus : en
  • CH219771A - Contact arrangement on electrical low-voltage and high-voltage switches and fuse cartridges. : de en
  • US2274198A - Uncurling guide for sewing machines : en
  • US2274545A - Built-up wheel : en
  • US2274067A - Spark plug insulator : en
  • US2274303A - Interchangeable figure structure : en
  • CH219754A - Oil cooling device on air-cooled engines with V-shaped cylinders. : de en
  • FR869997A - Process for preparing oximes : en fr
  • US2274416A - Bread chip process : en
  • CA403108A - Cinematographic resetting apparatus : en fr
  • CH219709A - Process for the recovery of metal from metal foils provided with an organic coating. : de en
  • US2274117A - Chair : en
  • CA403092A - Electrical connector : en fr
  • CH219626A - Sheet steel attachment for gas stoves. : de en
  • DE718019C - Arrangement for AC-fed tube amplifiers : de en
  • US2274182A - Moving luminescent screen oscillograph : en
  • BE444256A - Process for preparing adipic dinitrile : en fr
  • FR869898A - Device for fixing locks and fittings on trunks and similar objects : en fr
  • FR869909A - Wooden first to be used for the assembly of the shoe to then fix it on a wooden sole with screws or spikes : en fr
  • US2273982A - Combination wrench and die starter : en
  • US2273991A - Copper oxide disk and method of making same : en
  • FR870007A - Disinfection cabinet : en fr
  • FR870017A - Improvements to telescopic shock absorbers : en fr
  • GB543470A - Improvements in or relating to suction cleaners : en
  • CH219795A - Gas-saving burner. : de en
  • CH219606A - Setting device for flow heater. : de en
  • CH219670A - Book with text and picture supplements. : de en
  • CH219839A - Installation on vehicles with an engine in the rear for cooling the same with water. : de en
  • US2274278A - Package : en
  • DE717807C - Automatic sheet loading and unloading device for cylinder printing machines : de en
  • FR869982A - Chain sizing process : en fr
  • GB543388A - Improvements in installations for conversation in both directions between two points : en
  • FR870049A - Norwegian cooking pot : en fr
  • CA403051A - Chemical process : en fr
  • CH219720A - Welding agent for electrical welding. : de en
  • CH219871A - Method for automatic adjustment of the start of injection in internal combustion engines. : de en
  • US2274343A - Pyrometric cone plaque : en
  • US2274513A - Electromagnetic speaker : en
  • DE717853C - Matched amplifier, especially high frequency amplifier : de en
  • PL30356B1 - A method of treating threads and fabrics, and an apparatus for carrying out the method : en pl
  • US2274233A - Heat exchanger unit : en
  • US2273917A - Automatic toaster : en
  • AU114670B2 - Non slip dress hanger : en
  • GB543419A - Improvements in indicating pointers : en
  • DE718047C - Retractable landing gear with two running wheels arranged next to each other : de en
  • GB543451A - Improvements in or relating to a roll film photographic camera : en
  • CH219763A - Heat exchanger and method of making the same. : de en
  • US2274300A - Filing machine : en
  • US2274410A - Electric switch : en
  • US2273889A - Method of and apparatus for manufacturing confection products : en
  • US2274283A - Railway signal system : en
  • US2274496A - Wheel rim decorative ring : en
  • CH219825A - Calibration label on the barrel. : de en
  • CA403074A - Glass fibre drawing and winding apparatus : en fr
  • CA403084A - Record posting machine : en fr
  • DE717828C - Splash water protection for ventilation openings arranged on the back of electrical machines or the like : de en
  • US2274098A - Deflecting circuit : en
  • US2274016A - Overhead car hanger : en
  • US2273858A - Smoking device : en
  • AU114694B2 - Improvements in or relating to shaped articles made from casein or vegetable seed proteins : en
  • US2273874A - Manufacture of artificially colored granules : en
  • US2274537A - Fluid-cooled resistance : en
  • CH219852A - Device for operating motor vehicles with acetylene as fuel, which is generated in acetylene generators arranged on the vehicle. : de en
  • DE718021C - Device for monitoring the horizontal radiation pattern of a directional antenna system : de en
  • CH219768A - Process for the production of an electrical insulating material. : de en
  • DE717950C - Filing device or the like with vertically arranged cards : de en
  • PL30308B1 - : en pl
  • DE717912C - Method and device for the simultaneous casting of several metal blocks in a single block form : de en
  • CH219681A - Ski binding with clamping device. : de en
  • CH219704A - Dust cover tube and method for its manufacture. : en fr
  • CH219873A - Television arrangement. : de en
  • US2274068A - Electric cigar lighter : en
  • US2274128A - Wire dereeling : en
  • BE444078A - : en fr
  • CA403099A - Piston ring : en fr
  • CH219725A - Device for pressing the punch off the punch sleeve and the punch sleeve from the spindle on machine tools. : de en
  • DE717889C - Laces for corsets u. like : de en
  • DE717936C - Device for the gentle filling of conveyed material, especially in conveying vessels for mining conveyor systems : de en
  • US2274350A - Circuit breaker operating mechanism : en
  • US2274471A - Railway vehicle : en
  • CA403094A - Electrical connector : en fr
  • AU95841A - Improvements in or relating to cutters for use in dry-shaving apparatus : en
  • CH219661A - Process for the preparation of polymerization products. : de en
  • US2273916A - Installation for mechanically recording sound on endless tapes coated with wax : en
  • DE717905C - Eddy current switch, especially for switching the auxiliary phase in single-phase motors : de en
  • CH219838A - Device on car bodies with a duct leading from a roof opening to a rear opening to reduce air resistance. : de en
  • US2273871A - Double silicates of zirconium and method of making same : en
  • US2274168A - Draw works : en
  • CH219647A - Double-walled pressure vessel. : de en
  • GB543471A - Improvements in and relating to dipole antenna arrays : en
  • DE717693C - Process for reprocessing spent cobalt catalysts : de en
  • DE717962C - Electric lamp with gutter mirror : de en
  • US2273898A - Furace wall : en
  • US2274582A - Protractor : en
  • DE717979C - Display device for fire extinguishers with pressurized extinguishing fluid : de en
  • ES148479A1 - A NEW PROCEDURE FOR THE MANUFACTURE OF AMPOLLAS : en es
  • GB543430A - Improvements in the fabrication of metal aircraft : en
  • FR869887A - Photographic viewfinder : en fr
  • FI19085A - Copy control for automatic volume control by radiomottagare o.d. : en fi
  • FR869854A - Footwear manufacturing process and industrial product resulting from said process : en fr
  • US2273966A - Process for preparing 1-amino-5-nitro-anthraquinone : en
  • US2273977A - Vulcanized rubber joint : en
  • US2274263A - File cabinet : en
  • CH219620A - Gas stove. : de en
  • CH219650A - Process for preparing 5,6-pregnentriol-3,17,20. : de en
  • FR869930A - Automatic cleaning filter for gasifiers : en fr
  • US2274361A - Flocculation : en
  • DE717774C - Extension drill : de en
  • CA403043A - Methylol urea ether : en fr
  • US2273971A - Apparatus for safe collection, delivery, and transporation of valuables : en
  • US2273882A - Internal combustion engine : en
  • US2273950A - Traction device : en
  • US2274253A - Display carton : en
  • DE718024C - Electrical contact cable with a central conductor and a ring of individual conductors : de en
  • PL30313B1 - C. Lorenz Aktiengesellschaft, Berlin-Tempelhof Radiogoniometer system to prevent bearing errors : en pl
  • US2274010A - Lock washer : en
  • US2273885A - Underfired coke oven : en
  • US2274113A - Oil refiner pack : en
  • CH219723A - Process for the production of can sleeves with a longitudinal fold without the use of tin. : de en
  • FR869912A - Improvements to Norwegian cooking pots : en fr
  • GB543377A - Improvements in or relating to absorption refrigerating systems : en
  • CH219680A - Pencil sharpening machine with cylindrical cutter. : de en
  • CH219700A - Power converter. : de en
  • DE717878C - Electric switch with time setting : de en
  • ES148833A1 - A NEW UNION DEVICE FOR THE BLOCKS OF EXPLOSION ENGINES : en es
  • PL30381B1 - A method of purifying carbon sulphide in a continuous procedure : en pl
  • CH219729A - Cutting tool. : de en
  • FR869931A - Nozzle for gasifiers : en fr
  • GR9791B - HOW TO MAKE A MOBILE KITCHEN HOB. : el en
  • US2274397A - Grating for coaling stations : en
  • US2274574A - Vascular and joint exerciser : en
  • GB543356A - Improvements in or relating to mechanisms for hoists, windlasses, tensioning machines, torsion machines, lifting appliances and the like : en
  • GB543384A - Mercury switches : en
  • SU60821A1 - Apparatus for determining viscosity of slag by efflux method : en ru
  • US2274538A - Remote control system for toy electric railroads : en
  • DE717881C - Process for the production of inhomogeneous metallic substances : de en
  • DE717892C - Storage device for bottles : de en
  • GB543405A - Improvements relating to pipes for removing damp from masonry : en
  • DE717890C - Device for adjusting motor vehicle headlights : de en
  • DE717972C - Flat weft knitting machine with device to achieve a constant thread feeder advance : de en
  • DE1514430U - : de en
  • US2273823A - Sheet feeding mechanism : en
  • US2274080A - Autographic machine : en
  • US2274031A - Insulated electrical conductor : en
  • US2274578A - Shoemaking apparatus : en
  • CA403081A - Syrup manufacture : en fr
  • CH219599A - Method for sealing the joint in space-enclosing organs and space-enclosing organ sealed according to the method. : de en
  • DK59504C - AC power switch. : da en
  • US2274421A - Power driven pruning device : en
  • US2274603A - Hydraulic feed control panel : en
  • GB543427A - Improvements in and relating to cake decorations : en
  • CA403055A - Rubber hydrochloride preservation : en fr
  • USRE22030E - Carburetor valve : en
  • AU11041A - Non slip dress hanger : en
  • ES148869A1 - A DEVICE FOR DRIVING A TREE BY VARIOUS ENGINES : en es
  • FR870023A - Cinematographic camera with optical compensation : en fr
  • CA403042A - Resin solution from diethers of dimethylol urea : en fr
  • ES148853A3 - A PROCEDURE FOR THE MANUFACTURE OF TOOTHPICK TOPS : en es
  • US2274111A - Hanger for emergency equipment : en
  • US2274617A - Lubricating oil composition : en
  • US2273987A - Direct current amplifier : en
  • US2274609A - Fuel metering and timing governor for injection internal combustion engines : en
  • US2274417A - Joint assembly for shock absorbers and the like : en
  • US2274235A - Extension bracket : en
  • GB543420A - An improved manufacture of olefin polymers : en
  • US2273831A - Magnesium alloy : en
  • DE717910C - Process for preparing bones for gelatine manufacture : de en
  • DE717944C - Overflow valve for circulation pumps : de en
  • US2273957A - Turbulence manifold : en
  • USRE22037E - Electric lighting fixture of the portable wall lamp type : en
  • DE717983C - Fitting for windows, doors and the like that can be opened around a vertical and a horizontal axis. like : de en
  • CH219634A - Method for manufacturing an article comprising two branches integral with one another, in particular suspenders, and article obtained by this process. : en fr
  • CA403133A - Electrolyte for aluminium refining : en fr
  • US2273893A - Metal clip machine : en
  • FR869860A - Manufacturing process of polarizer filters : en fr
  • FR870031A - Remote control system : en fr
  • CA403007A - Textile material : en fr
  • FR870035A - Method for locating oil fields : en fr
  • ES148836A3 - A PROCEDURE TO TAKE ADVANTAGE OF THE RESIDUAL MARC OF THE OIL INDUSTRY : en es
  • US2273842A - Torque transmission device : en
  • US2274066A - Self-scaling tube : en
  • FI19086A - Anordning for automatic volume control with radio frequency and high frequency control : en fi
  • CA403079A - Indicating mechanism zeroizing means : en fr
  • CA403127A - Floating and troweling machine : en fr
  • FR869880A - Process for mechanically printing knitting : en fr
  • CA403002A - Window : en fr
  • CH219747A - Mixing device on vehicles powered by wood gas. : de en
  • CH219823A - Double roof tent. : de en
  • US2274315A - Fuel injection system or device for internal-combustion engines : en
  • CH219821A - Two-pole network with constant impedance with partly variable branch impedances. : de en
  • CH219855A - Washing machine with guided laundry tamper. : de en
  • CA403037A - Demand metre : en fr
  • CH219621A - Armchair convertible into a bunk. : en fr
  • US2274180A - Traction wheel : en
  • CA403062A - Precision grinding machine : en fr
  • US2274020A - Fruit juice machine : en
  • US2274402A - Washing machine : en
  • US2274507A - Excavating bucket structure : en
  • US2274293A - Accessory system for motor vehicles : en
  • AU41741A - Adjustable antenna devices : en
  • DE717848C - Wire drawing machine with vertically arranged, non-rotating reel : de en
  • DE718037C - Device for winding ropes, consisting of two coaxially arranged drums with spring drive : de en
  • US2274619A - Vehicle rocking device : en
  • US2274460A - Muffler : en
  • US2273947A - Clutch and brake mechanism : en
  • US2274533A - Doorframe for collapsible closets : en
  • US2273828A - Ball winding machine : en
  • US2273999A - Slide closure for containers : en
  • DE717789C - Pull-in and pull-out device for pipe connections : de en
  • PL30328B1 - : en pl
  • CH219844A - Elastic wheel. : en fr
  • CH219862A - Process for the preparation of a dye of the anthraquinone series. : de en
  • DE717869C - Pulling device that can be used for carriage or power train : de en
  • US2274183A - Push pole structure : en
  • CA403006A - Vehicle wheel : en fr
  • CH219643A - Process for the production of a product containing vitamin A or one of its provitamins in a durable form. : de en
  • FR869885A - Invisible door hinge for car doors attached in pairs to a common door pillar, in particular for motor car doors : en fr
  • US2274022A - Lubricant and method of preparing same : en
  • US2274478A - Apparatus for manufacturing frozen confections : en
  • US2274246A - Head for decoy ducks : en
  • US2274439A - Pressure vessel : en
  • US2274583A - Feeding mechanism for bottle capping machines : en
  • US2274324A - Seal : en
  • GB543433A - Stabilized partially hydrolyzed starch pastes : en
  • GB543444A - Improvements in or relating to water cooling towers : en
  • FR870047A - Heating appliance running on oil or any other fuels : en fr
  • PL30332B1 - : en pl
  • FR869955A - A method and device for controlling the auto-pulmonary breathing apparatus oxygen addition valve : en fr
  • FR869881A - Ticket holder : en fr
  • GB543395A - Improvements in master clock mechanisms : en
  • CH219683A - Leaning support on skis. : de en
  • CH219668A - Process for the production of hard fibreboard, smooth on both sides. : de en
  • GB543386A - Improvements in projectile fuze-setting apparatus combined with automatic firing means for guns : en
  • DE717844C - Display device on roll film cameras : de en
  • CH219829A - Gas generation system on tractors, for solid fuels such as wood, coal, peat etc. : de en
  • US2274005A - Method of and apparatus for surface hardening metal articles : en
  • US2274616A - Quick-setting vinyl compositions : en
  • AU80741A - Improvements in or relating to resilient mountings : en
  • US2274271A - Transmitting system : en
  • US2274494A - Air heating apparatus : en
  • CH219685A - Table bowling game. : en fr
  • US2274125A - Refrigerator shelf : en
  • US2274564A - Step by step positioning device : en
  • CA403139A - Aircraft piloting system : en fr
  • FR869859A - Improvements to rotary hydraulic compressors : en fr
  • GB543391A - An improved generator for producing a range of predetermined frequencies : en
  • CH219863A - Process for the preparation of a dye of the anthraquinone series. : de en
  • CH219609A - Device for cleaning the drainage opening of hydrants. : de en
  • FR869993A - Internal combustion engine carburetor choke air heater : en fr
  • GB543448A - Improved method and apparatus for sealing joints in cabins and like purposes : en
  • CH219791A - Circuit with an electric discharge tube. : de en
  • CH219843A - Control device for the pressure medium of gear shifting devices, in particular for motor vehicles. : de en
  • PL30312B1 - Device for drying tapes : en pl
  • PL30371B1 - : en pl
  • DE717970C - Moving grate : de en
  • CH219612A - Rod lock on window sashes. : de en
  • FR870018A - Skin care product and deodorant : en fr
  • IE16253L - Nickel-platinum alloys : en
  • CA403077A - Knitting head : en fr
  • DE717854C - Electromagnetic drive device for tools and straight back and forth movement : de en
  • US2274223A - Method of separating wax from oils : en
  • ES148843A1 - A PROCEDURE FOR SEPARATING THE SOLID SUBSTANCES PHYSICALLY DISINTEGRATED, ACCORDING TO THEIR QUALITATIVE COMPONENTS, AND CLASSIFYING THE PARTICLES OF MATTER IDENTITY ACCORDING TO THEIR SURFACES OR MASSES, VIA ELECTRICAL : en es
  • DE717847C - Protection against flashbacks and oxygen in a gas line : de en
  • DE717966C - Winding capacitor for high voltage purposes consisting of several partial capacitors connected in series : de en
  • DE717901C - Slot clamp for electrical conductors : de en
  • CH219782A - Safety fuse with display and trigger device. : de en
  • DE717835C - Bottle with a chamber arranged on the side of the bottle neck and provided with a removal opening : de en
  • CA403117A - Electron discharge device : en fr
  • FR869946A - Improvements made to relaxation oscillation generators : en fr
  • US2274207A - Wrist watch : en
  • US2274030A - Process improvement for solvent extracting operations : en
  • US2274516A - Shuttle : en
  • GB543496A - Improvements in and relating to ball bearings of the combined journal and thrust type : en
  • AU37041A - Boiler for refrigeration apparatus : en
  • CH219743A - Magneto ignition for internal combustion engines. : en fr
  • US2274124A - Band-pass filter coupling, compensating, and dividing network : en
  • FR870012A - Resin-based chemical product that transmits to any copper or insecticide product its dual wetting and fixing power : en fr
  • PL30337B1 - : en pl
  • PL30359B3 - Knife with a hook : en pl
  • US2274052A - Toy for blowing bubbles : en
  • CH219653A - Process for the preparation of an ester of a non-coloring sulfurization product of phenols : de en
  • CA402999A - Motor vehicle safety device : en fr
  • US2274438A - Precision rolling disk colter : en
  • CH219818A - Process and device for the control of high-frequency vibrations. : de en
  • US2273839A - Barrel cooling device : en
  • US2274335A - Mitten : en
  • US2273875A - Drag pan : en
  • CH219706A - Watch. : en fr
  • FR869914A - Apparatus for rewinding a film strip : en fr
  • FR869915A - metallic sponge and process for its manufacture : en fr
  • US2274227A - Shock absorbing system : en
  • US2274329A - Multiple switch indicating instrument : en
  • IT392472B - : it
  • US2274239A - Recoil device : en
  • US2274331A - Tube mill lining : en
  • FR870014A - Seeding shaft control for internal combustion engines : en fr
  • DE717806C - Process for the catalytic pressure hydrogenation of liquid carbonaceous substances : de en
  • US2273942A - Coin wrapper crimping machine : en
  • US2274630A - Process of preparing nitrohydroxyhydrocarbons from hydrocarbons : en
  • PL30315B1 - Method of cleaning a metal bath : en pl
  • PL30376B1 - : en pl
  • GB543453A - Improvements in or relating to water-proof or water-resisting garments : en
  • GB543484A - The preparation of threads, fibres, straws, films, sheets and the like from cellulose esters : en
  • US2273829A - Variable discount metering system for electric plant use : en
  • DK59520C - Resilient brake means for such apparatus for drying agricultural and horticultural products, consisting of two internally arranged drums. : da en
  • US2274363A - Treating cellulosic materials : en
  • DE717784C - Process for the production of double-sided mosaic electrodes : de en
  • US2273813A - Wallpaper steaming device : en
  • DE718054C - Ink feed for fountain pens with a length channel that can be closed by a plug for introducing solid ink : de en
  • FR869970A - Self-lubricating device for high-speed rotating shafts : en fr
  • US2274135A - Circuit breaker : en
  • US2274566A - Grouting for earth's strata : en
  • US2274442A - Heat exchange device : en
  • US2274504A - Strip supporting roll for pickling vats and the like : en
  • US2274541A - Erosion-corrosion testing device : en
  • FR869907A - Process for preparing a fur with textile fibers : en fr
  • US2274354A - Screen grid tube : en
  • FR869896A - Coal preparation process : en fr
  • ES148517A3 - A DEVICE FOR SUPPLYING INK TO THE STYLOGRAPHIC PENS : en es
  • US2274023A - Drill : en
  • US2274093A - Apparatus for completing submarine wells : en
  • DE718040C - Translucent mirror for optical purposes : de en
  • GB543435A - Improvements in and relating to cutlery pieces : en
  • CH219810A - Timepiece for telephone calls. : de en
  • DE717995C - Circular loom with electrically driven shuttle : de en
  • US2274055A - Cable strain clamp : en
  • BE444205A - : en
  • CA403019A - Photometric apparatus : en fr
  • FR869895A - Process for removing sulfuric acid from aqueous liquids : en fr
  • CH219800A - Process for the production of a protracted, blood sugar-lowering substance from the pancreas. : de en
  • AU114704B2 - Composition and method of treating cast iron : en
  • CH219640A - Disintegrator device for cleaning gases. : de en
  • CH219675A - Pivot pin. : de en
  • CA403028A - Manifolding device : en fr
  • AU114688B2 - Improvements relating to filters : en
  • CH219772A - Spring-loaded feedback device for hand controls with one middle and two end positions. : de en
  • DE717810C - Photoelectric cell : de en
  • FR869983A - Shunt capacitance neutralization arrangement of oscillating crystals : en fr
  • GB543501A - Improvements in electric valve converting apparatus : en
  • DE717943C - Impregnation agent for flammable substances : de en
  • US2274149A - Television antenna : en
  • BE448848A - Process for preparing hair active substances : en fr
  • US2274562A - Closure device : en
  • CA403109A - Cinematographic film feeding apparatus : en fr
  • PL30349B1 - : en pl
  • US2274552A - Safety latch for sliding closures : en
  • US2274121A - Cleaning machine : en
  • US2274312A - Thermostatic switch : en
  • US2274437A - Battery terminal clamp : en
  • US2273922A - Fluorine-containing compounds of the naphthalene series : en
  • US2274218A - Roller bearing axle construction : en
  • DE717729C - Gripper arrangement for cloth arm sewing machines : de en
  • US2274032A - Repairing tool : en
  • US2274136A - Continuous outlet construction : en
  • US2274328A - Olefin polymerization : en
  • FR869902A - Ignition hearth for powdery fuel fireplaces : en fr
  • IT392439B - : it
  • GB543440A - Improvements in or connected with coal-cutting machines : en
  • US2274159A - Circuit breaker : en
  • US2274309A - Washer : en
  • FR869960A - Single phase transformer with high power and voltage : en fr
  • US2273944A - Locomotive brake equipment : en
  • DE717861C - Device on cheese tubs for emptying them : de en
  • FR869916A - Soot blower fitted with an inlet device with two concentric tubes, for heat exchangers : en fr
  • US2273980A - Article of furniture : en
  • CH219656A - Process for the production of an acidic wool dye. : de en
  • CH219736A - Shut-off device to be arranged in lines for compressed gases, compressed air, liquids, etc. : de en
  • US2273890A - Cellulosic article : en
  • US2274338A - Fluid-translating apparatus : en
  • CA403112A - Liquid volume indicator : en fr
  • FR869954A - Improvements to scales : en fr
  • CA403101A - Stable diazo compound : en fr
  • US2274090A - Beehive frame rest : en
  • US2274092A - Electron discharge device : en
  • US2274486A - Piezoelectric resonator circuit : en
  • US2274549A - Temporary fastener : en
  • US2274501A - Manufacture of projection screens : en
  • US2274434A - Radio apparatus : en
  • CH219809A - AC telegraphy system with frequency doubling. : de en
  • CH219657A - Process for the preparation of a vat dye of the naphthalimide series. : de en
  • CH219721A - Welding process. : de en
  • CH219730A - Bottle for paints, spreads and the like. : de en
  • CH219748A - Device for starting internal combustion engines. : de en
  • US2274503A - Brake drum : en
  • CA403023A - Soldering iron : en fr
  • CH219739A - Centrifugal hoist with volute casing. : de en
  • US2274290A - Hygrometer : en
  • US2273827A - Manufacture of artificially colored granules : en
  • US2274512A - Motion transmitting machanism : en
  • US2274559A - Shoe calk : en
  • CA403113A - Telephone and telegraph exchange system : en fr
  • US2273895A - Roller or ball bearing : en
  • CH219769A - Process for the production of a material consisting at least partly of inorganic fibers. : de en
  • CA403014A - Crack indicating device : en fr
  • GB543507A - Improvements relating to methods for separating suspended particles of solid matter from water or aqueous solutions : en
  • ES148179A1 - IMPROVEMENTS INTRODUCED IN THE CONSTRUCTION OF TRAVIESAS DE VÍA FÉRREA : en es
  • FR869920A - Nut wrench with free-running ratchet : en fr
  • DE718014C - Blade lock for multi-row turbine blades : de en
  • US2274573A - Oil burner : en
  • US2274076A - Calculating machine : en
  • US2274476A - Insecticide and moth larvae repellent : en
  • FR869851A - Reels for tapes, tapes, more particularly for films : en fr
  • US2274314A - Transfer car : en
  • FR869926A - Baler, especially straw press : en fr
  • CH219834A - Device on vehicles with rear-mounted engine for cooling the same with water. : de en
  • FR869964A - Process for the production of n-sulfonylureas : en fr
  • FR869963A - : fr
  • DE717863C - Device for automatic shutdown of a starter carburetor : de en
  • CH219799A - Foot massage machine. : de en
  • GB543378A - Fuel injector nozzle for internal combustion engines : en
  • DE717824C - In particular, switching device serving as a command transmitter and sealed against pressurized water by a membrane seal in the switch room : de en
  • DE717884C - Quick-closing device for valves, slides or the like. : de en
  • FR870050A - Manufacturing process for colored yarns in glass or other similar mineral material : en fr
  • GB543431A - Improvements in or relating to the purification of aluminium : en
  • DE717792C - Protective bag for respiratory protection filter : de en
  • US2274129A - Jointer fence : en
  • GB543455A - Improvements in and relating to gyroscopes and gyroscopic apparatus : en
  • GB543372A - Improvements in extrusion machines : en
  • PL30351B1 - : en pl
  • US2273915A - Process of desalting petroleum : en
  • DK59516C - Procedures for preserving vegetables such as fruits, seeds, flowers, leaves, stems, roots and tubers. : da en
  • CH219727A - Adjustable machine reamer. : de en
  • DE717840C - Stabilization device for indirectly acting regulators : de en
  • CH219596A - System for sprinkling crops. : de en
  • US2273869A - Resilient support : en
  • US2273920A - Universal joint : en
  • US2274298A - Portable sterilizing unit : en
  • DE718057C - Process for the production of higher molecular weight chlorinated hydrocarbons : de en
  • ES148386A1 - A CLASSIFIER ARCHIVER, WITH MULTIPLE METAL STICKS SYSTEM, INTENDED TO CONTAIN ALL KINDS OF PUBLICATIONS, EDITIONS AND DOCUMENTS : en es
  • CA403104A - Electric motor manufacture : en fr
  • CH219833A - Twistable frame for vehicles. : de en
  • US2273993A - Gaseous discharge device circuit : en
  • CH219837A - Lighting device on aerodynamic bodies for the license plates of the vehicle. : de en
  • US2274185A - Polishing wheel : en
  • US2274622A - Bag making, stringing, and tagging machine : en
  • FR869852A - Motor vehicle with engine at the rear : en fr
  • FR869890A - Improvements to vacuum cleaning devices : en fr
  • PL30344B1 - : en pl
  • CH219716A - Process for the production of casting molds. : de en
  • CH219722A - Program spot welding machine. : de en
  • US2273973A - Artificial leather : en
  • PL30333B1 - Friedrich Cavallo, Berlin Pednia, for a change of speed : en pl
  • PL30314B3 - : en pl
  • PL30341B1 - Ceskoslovenska Zbrojoyka A- S, Brno, Brno Impact fuse, especially for anti-aircraft missiles : en pl
  • DK59518C - Power transmission systems for motor vehicles, in particular rail carriages. : da en
  • GB543385A - Improvements in appliances for machine tapping or screwing operations : en
  • US2273958A - Gas filled discharge device : en
  • AU114669B2 - Improvements in footwear : en
  • CH219804A - Hair styling device. : en it
  • CH219820A - High-frequency conductor with switched on series impedance. : de en
  • CA403141A - Fire extinguishing compound : en fr
  • US2274286A - Shaft bearing : en
  • PL30374B3 - A method of obtaining medicinal preparations from fresh plants or their parts : en pl
  • US2274211A - Stapling machine : en
  • US2274543A - Trimming mechanism for grinder wheels : en
  • CH219677A - Multi-color ink fountain pens. : de en
  • CH219835A - Body for high-speed vehicles. : de en
  • US2273878A - Gun recoil damping structure : en
  • US2274170A - Hair waving device and process : en
  • US2274011A - Electrical condenser : en
  • CH219605A - Heat exchanger for heating liquids. : de en
  • CH219627A - Pan with lid. : de en
  • US2274301A - Machine for affixing can openers to cans : en
  • US2274320A - Machine for recovering carbons : en
  • US2274433A - Range construction : en
  • FR870027A - Horizontal coke oven with vertical heating flues and individual regenerators : en fr
  • US2273868A - Grain grinder : en
  • US2273897A - Method of and means for electrically protecting against corrosion partially submerged linear metallic structures : en
  • FR869978A - Process for the preparation of readily water-soluble heterocyclic compounds containing nitrogen in the nucleus : en fr
  • FR870021A - Device to compensate for the action of external magnetic fields in electron tubes : en fr
  • GB543362A - Improvements in the production of bent tubes : en
  • PL30385B1 - : en pl
  • PL30382B1 - : en pl
  • US2273847A - Collinear reflector : en
  • US2273862A - Stabilized viscous mineral oil composition : en
  • GB543452A - Improved apparatus for filling sausage meat and other plastic food substances into cans and like containers : en
  • CA403020A - Stereogram manufacture : en fr
  • GR9793B - METHOD OF MAKING RESIN SOAP. : el en
  • AU114681B2 - An improved method of constructing a cavity wall : en
  • CA403036A - Socket adapter : en fr
  • CH219667A - Embossing calender. : de en
  • US2274222A - Safety appliance : en
  • DE717823C - Circuit for low-frequency gain control using a reflexively switched multi-grid tube : de en
  • DE718043C - Device on internal combustion engines, in particular vehicle engines, for changing the composition of the fuel-air mixture by means of a saving device : de en
  • ES148744A3 - PROCEDURE FOR THE CULTIVATION OF GRAMINE : en es
  • DE717798C - Device for balancing the running wheels of motor vehicles : de en
  • DE717850C - Process for the manufacture of pulleys : de en
  • US2274083A - Sender control system : en
  • US2274483A - Railway vehicle : en
  • US2273979A - Carburetor : en
  • PL30352B1 - : en pl
  • US2274000A - Elevator safety apparatus : en
  • US2274565A - Straight-bar knitting machine : en
  • US2274598A - Ironing table top : en
  • FR869948A - Grinding machine without tips : en fr
  • CH219629A - Process for producing rayon with particularly good strength properties from viscose : de en
  • CH219735A - Automatic float valve. : de en
  • PL30373B1 - : en pl
  • US2274403A - Chimney : en
  • CH219812A - Telephone. : de en
  • DE717809C - Device for testing high-voltage converters earthed on one side : de en
  • DE717873C - Process for the production of detonation-sensitive ammonium nitrate : de en
  • ES148854A1 - A NEW PETROLEUM BURNER AND HEAVY OILS, WITHOUT PRESSURE, APPLICABLE TO BURNERS, KITCHENS, STOVES AND SIMILAR : en es
  • DE718048C - Shoe brake, especially for backstep brake hubs of bicycles : de en
  • PL30309B1 - : en pl
  • US2274018A - Traffic signal : en
  • DE717821C - Magnet system for separately excited electrodynamic loudspeakers : de en
  • ES148676A1 - RUBBER STRIP DEVICE FOR ELASTIC MACHINERY SUSPENSIONS : en es
  • GB543462A - Manufacture of ground-nut food products : en
  • CA403024A - Textile yarn and fabric printing product : en fr
  • DE717885C - Device for precisely limiting the movement of back and forth moving slides in machine tools, especially milling machines : de en
  • DE717985C - Bomb target training device with photographic registration : de en
  • DE718055C - Calculating device, especially for artillery purposes : de en
  • US2274189A - Sheet roofing : en
  • US2274217A - Vehicle lamp : en
  • US2274362A - Latch mechanism : en
  • US2274536A - Portfolio, brief case, and the like : en
  • CH219673A - Drive device for office machines, in particular typewriters, typewriters, calculating machines and the like. : de en
  • SU60861A1 - Rotator : en ru
  • ES148838A3 - TROUSERS IRONING APPLIANCE : en es
  • US2274407A - Means for producing from spaced oil sands one of which requires pumping : en
  • US2274082A - Method for construction of marine foundations : en
  • US2274100A - Key pulsing sender for telephone systems : en
  • US2274441A - Exposure meter : en
  • PL30343B1 - : en pl
  • GB543503A - Improvements in or relating to radio receivers : en
  • US2274176A - Seat construction : en
  • US2274400A - Manufacture of photoflash lamps : en
  • USRE22033E - Container and seam closure : en
  • DE717786C - Push-button-like closure with an upper part with a locking pin and a lower part with a locking spring for handbags, briefcases and the like. like : de en
  • DE717796C - Oil pressure braking device : de en
  • DE717776C - Process for the production of zippers : de en
  • CH219719A - Solder to connect aluminum to any other metallic material. : de en
  • CA403032A - Starch-containing felted fibre sheet manufacture : en fr
  • US2274012A - Antenna : en
  • CH219691A - Centering instrument. : en fr
  • US2274456A - Method of making calcium thiocyanate : en
  • CH219788A - Circuit arrangement for suppressing the alternating current component of wave currents, in particular in the case of rectified alternating currents. : de en
  • CH219869A - Process for the preparation of a resinous condensation product. : de en
  • US2274297A - Method of treating earth and rock formations : en
  • US2273865A - Apparatus for catalysis and the use thereof : en
  • GB543482A - Improvements in or relating to automatic control means for aircraft : en
  • US2274063A - Shoe-shaping machine : en
  • US2274481A - Manure spreader : en
  • US2274151A - Core making and filling device : en
  • US2274349A - Extinguisher : en
  • FR869884A - Process for the recovery of copper and other constituent metals of bronzes : en fr
  • FR869910A - Improvement of the brabant plow : en fr
  • GB543423A - Improved spring support : en
  • DE717870C - Transmission for road and off-road vehicles : de en
  • US2274372A - Automobile suspension : en
  • FR870011A - Receiver station of t. s. f. comprising at least two adjustable members having a common drive device : en fr
  • CH219773A - Method and device for switching transformer taps under load. : de en
  • DE717981C - Carbon dioxide absorption material based on lime : de en
  • GB543366A - Discontinuous screens for cables used in electrical communications : en
  • DE718015C - Piston rod end for steam engines : de en
  • DK59503C - Voice Viewer for Radio Receivers. : da en
  • FR870001A - Spindle for double or multiple recording by image points : en fr
  • CA403038A - Inorganic chemical product : en fr
  • CH219648A - Process for the manufacture of catalysts. : de en
  • US2274605A - Gripping pad for handles : en
  • PL30326B1 - A method of refining flat products such as artificial leather : en pl
  • US2274435A - Snare drum : en
  • ES148716A3 - A SPECIAL FLAT BROOCH FOR WOMEN'S GARMENTS : en es
  • DE717902C - Actuation device for disconnector : de en
  • US2273965A - Method of making collars : en
  • US2274244A - Cutting blade adjustment for boring bars : en
  • US2274570A - Process for producing sound films and matrix therefor : en
  • US2273888A - Oil primer : en
  • DE717783C - On the inside wall of the vessel, a transparent and conductive ignition lightening coating for electric discharge lamps or tubes : de en
  • DE717893C - Washing and fulling machine for fabrics u. like : de en
  • ES148855A1 - A PROCEDURE FOR THE MANUFACTURE OF THE METAL CLAMPS FOR THE RETENTION OF THE CANILLAS IN THE LANZADERAS FOR AUTOMATIC TELESCOPES : en es
  • GR9794B - AQUATIC IMPROVEMENTS. : el en
  • ES148856A1 - A NEW BIRD FOR BIRDS : en es
  • GB543483A - Improvements in apparatus for edge grinding cementitious slabs or boards : en
  • CH219784A - Overvoltage protection device. : de en
  • US2274490A - Dry cell machine : en
  • AU238040A - Improvements in or relating to shaped articles made from casein or vegetable seed proteins : en
  • CH219755A - Drive unit with a combustion engine for vehicles cooled by an axial fan. : de en
  • US2274413A - Method of and apparatus for making solder connections : en
  • US2274196A - Transparent container : en
  • US2274595A - Marking machine : en
  • CH219858A - Process for the production of a new condensation product. : de en
  • CA403031A - Artificial leather : en fr
  • US2274035A - Machine for packing matches : en
  • CH219802A - Process for the preparation of 3-oxy-4-carbaminyl-4'-acetylamino-arsenobenzene-2'-oxyacetic acid. : de en
  • US2273891A - Method of polymerizing polymerizable materials containing more than one polymerizable grouping : en
  • US2273926A - Method of forming metal shells and arbor for the saem : en
  • CH219641A - Equipment on baking stoves to discharge the steam generated during baking. : de en
  • AU38141A - Improvements in and relating to seed and fertilizer broadcast distributors : en
  • CA403119A - Space discharge apparatus and circuit : en fr
  • DE717866C - Seat fastening of the roller bearing race rings : de en
  • SU60822A1 - A method for processing eudialyte : en ru
  • US2274099A - Traveling block : en
  • CH219831A - Device for the automatic control of speed change gears, in particular for vehicles with internal combustion engine drives. : de en
  • CH219841A - Bodywork for motor vehicles. : de en
  • US2274181A - Knitting device : en
  • BE442561A - Power supply device for a rare gas lamp and signaling device fitted with this device : en fr
  • CH219672A - Device provided on printing machines for eliminating passport differences. : de en
  • AU37941A - An improved method of constructing a cavity wall : en
  • PL30327B1 - : en pl
  • DE717804C - Sugar snap device : de en
  • GB543408A - Improvements in gear cutting machines : en
  • US2274307A - Control mechanism for rail sanders : en
  • US2274495A - Process of the manufacture of insulating units : en
  • US2274213A - Vehicle brake : en
  • CA403073A - Electron discharge device : en fr
  • CA403041A - Dimethylol urea diether : en fr
  • GB543396A - Improvements in valves for controlling the supply of fluid under pressure : en
  • ES146673A3 - Toggle switch. : en es
  • US2274526A - Tying machine : en
  • CA403049A - Cylindrical article wrapping apparatus : en fr
  • DE717896C - High pressure storage system : de en
  • US2273811A - Method of knitting and machine therefor : en
  • US2274375A - Reed for musical instruments : en
  • PL30355B1 - : en pl
  • US2274473A - Lubricating apparatus : en
  • FR869990A - Armature winding for electrical machines : en fr
  • PL30348B1 - An automatic electrical device for selecting threads of different colors in a weaving loom : en pl
  • GB543402A - Improvements in or relating to liquid atomising or spraying devices : en
  • CH219607A - Device for slaking lime. : de en
  • US2273841A - Copyholder : en
  • US2274142A - Multifocal ophthalmic lens : en
  • US2273887A - Machine for operating on sheet material : en
  • US2274019A - Switch : en
  • US2274289A - Railway signaling apparatus : en
  • FR869855A - Floating electric liquid heater : en fr
  • FR869943A - Extrusion press for ceramic pastes : en fr
  • GB543450A - Improvements in or relating to a roll film photographic camera : en
  • CA403122A - Educational apparatus : en fr
  • CH219679A - Table for writing. : en fr
  • CH219718A - Device for the removal of surface layers from objects that can be flame-cut by the action of heating flames and oxygen rays. : de en
  • ES148069A1 - IMPROVEMENTS IN OR RELATIVE TO DEVICES FOR VARIABLE CAPABILITIES AND CIRCUIT SYSTEMS IN WHICH THEY ARE USED : en es
  • US2274060A - Mold and mold making method : en
  • US2274173A - Collapsible tube : en
  • US2274371A - Temperature control apparatus : en
  • US2274308A - Multiple way fluid control valve : en
  • US2274624A - Vapor phase isomerization of hydrocarbons : en
  • US2273880A - Moistureproof sheet wrapping material : en
  • US2274021A - Brake : en
  • US2274459A - Muffler : en
  • US2274514A - Welding mechanism : en
  • CA403058A - Cinematographic film leaderstrip : en fr
  • CH219798A - Apparatus for influencing nerves and muscles with electrical impulses. : de en
  • DE717794C - Process for the production of conical tubular spars for aircraft : de en
  • DE717987C - Device for determining aircraft heights using sound waves : de en
  • US2274231A - Battery separator : en
  • FR870044A - Realization of a beaconing network by hertzian waves : en fr
  • BE441874A - : en
  • BE441873A - : en
  • USPP503P - Apricot : en
  • CH219698A - Magnetic shunt to improve the error curve in induction meters. : de en
  • FR869891A - Improvements in the construction of variable electric capacitors : en fr
  • US2274589A - Universal nose grip for eyeglasses : en
  • US2274221A - Synchronized motor clock movement : en
  • CA403010A - Grass or hay lifter : en fr
  • US2274521A - Production of finely divided pigment substances : en
  • US2274600A - Tubular knit fabric singeing machine : en
  • BE444129A - : en
  • CH219678A - Inkware. : de en
  • GB543505A - Improvements in electrolytic electric condensers : en
  • US2274272A - Luminescent material : en
  • CH219733A - Connection of a pipe to a wall with the pipe end drawn in through the wall. : de en
  • CA403105A - Polyphase watthour meter : en fr
  • US2274445A - Heating means : en
  • US2274249A - Burner : en
  • FR869958A - Cleaning pad : en fr
  • CA403086A - Conveyer drive : en fr
  • CH219649A - Process for the preparation of a derivative of the unsaturated cyclopentanopolyhydrophenanthrene series. : de en
  • CH219848A - Retractable landing gear for aircraft. : en fr
  • US2274593A - Glucamine salts of amino-phenyl-stibonic acid : en
  • DE718033C - Smelting agents : de en
  • CH219872A - High-voltage transformer with coils of high resp. Low voltage winding. : de en
  • CH219762A - Heat exchanger. : de en
  • PL30311B1 - : en pl
  • US2273843A - Strip shifting tongs : en
  • US2274133A - Hand brake lever assembly : en
  • US2274277A - Wiper blade : en
  • SU60831A1 - Method and device for determining soil washout : en ru
  • CA403124A - Steerable antenna system : en fr
  • US2273833A - Decorative upholstery panel : en
  • US2274287A - Crucible furnace : en
  • ES146671A2 - IMPROVEMENTS MADE IN THE MAIN : en es
  • ES148848A3 - IMPROVEMENTS INTRODUCED IN THE CHANGING SHEET BOOKS : en es
  • US2274144A - Electrical connector for articulated trucks : en
  • US2274515A - Endless v-type belt : en
  • US2273867A - Closure for bottles, etc. : en
  • GB543383A - Method of and apparatus for making composite metal strip : en
  • US2274256A - Fluid heater : en
  • US2274539A - Transmission rail lock : en
  • DE718036C - Control for means of conveyance for conveying people : de en
  • US2274444A - Lighting fixture : en
  • DE717982C - Safety lock, especially for fuel tanks in motor vehicles : de en
  • AU114674B2 - Boiler for refrigeration apparatus : en
  • AU114678B2 - Improvements in or relating to circuit arrangements forthe transmission of electrical oscillations : en
  • CH219708A - Alarm clockwork. : de en
  • FR869988A - Control system for converter operating with controlled discharge paths : en fr
  • CA403136A - Substituted indole acid : en fr
  • CH219604A - Device for ventilation of premises. : en fr
  • CH219711A - Alloy for dental technology purposes. : de en
  • DE718011C - Process for separating hydrophilic and hydrophobic dust particles from gases : de en
  • DE717964C - High pressure electric metal vapor discharge lamp : de en
  • US2274615A - Air conditioning system : en
  • US2273972A - Control device : en
  • US2274033A - Automobile heater : en
  • CA403131A - Uniform colour lens : en fr
  • CH219688A - Contact device for the time marking for the strike pin of firearms on the primer of cartridges. : de en
  • GB543474A - Improvements in television transmitters : en
  • GB543467A - Improvements in apparatus for edge grinding and bundling cementitious slabs or boards : en
  • CH219676A - Pocket ruler. : de en
  • US2273840A - Electric motor wheel : en
  • US2273818A - Air flow control device : en
  • US2274270A - Garment : en
  • US2274352A - Filter : en
  • US2274431A - Hydraulic drill : en
  • US2274392A - Transmission control in two-way signaling systems : en
  • US2273940A - Addition products of amides of low molecular carboxylic acids and process of producing the same : en
  • US2274334A - Variable-pitch propeller : en
  • PL30368B1 - A method of heat treatment of material used for the production of permanent magnets : en pl
  • US2274123A - Refrigerator : en
  • BE444157A - Method of establishing solid adherent organic fusible coatings : en fr
  • CH219785A - Device for the automatic regulation of extinguishing coils. : de en
  • US2274579A - Method of producing seamless tubes : en
  • PL30358B1 - Device for determining the condition of the surface : en pl
  • US2273852A - Gas generator : en
  • CH219757A - Air cooling device on motor vehicles. : de en
  • CH219778A - Ultra-fast reclosing device for electric circuit breaker. : en fr
  • US2274448A - Motor driven hand tool : en
  • US2274493A - Rail connection : en
  • GB543401A - Improvements in or relating to the impregnation of wood : en
  • CH219851A - Cultivation system for mushrooms, bleached vegetables or the like. : de en
  • FR869952A - Automatic and adjustable constant low pressure acetylene generator for motor vehicles or other uses : en fr
  • GB543446A - Improvements relating to heat interchange apparatus : en
  • CH219694A - DF antenna arrangement in connection with a goniometer. : de en
  • US2274186A - Method of and apparatus for investing patterns under vacuum : en
  • CH219868A - Process for the preparation of a resinous condensation product. : de en
  • US2274091A - Bucking tool : en
  • US2274188A - Stripping knife : en
  • US2274237A - Process for the removal of metallic magnesium from mixtures of beryllium and magnesium : en
  • CH219817A - Selector switch. : de en
  • US2274167A - Printing press : en
  • US2274447A - Catalytic conversion of ureaformaldehyde resins : en
  • US2274614A - Air conditioning system : en
  • CA403118A - Electron discharge device : en fr
  • CH219689A - Firing device on guns. : de en
  • CH219787A - Process for the production of selenium-covered baseplates for selenium cells. : de en
  • CH219826A - Sheet metal container to hold in particular moist filling products, e.g. B. Jam. : de en
  • US2274358A - Production of butadiene : en
  • US2274498A - Ash tray snuffer : en
  • DE717745C - Device for evenly distributing the load on the anodes of a multi-phase converter : de en
  • DE717938C - Process for the softening of textiles made from cellulose rayon : de en
  • US2274497A - Power hack saw : en
  • ES145883A1 - New aluminum alloys which, in addition to high mechanical strength qualities, also present a high resistance to intercrystalline corrosion and stress corrosion, particularly against sea water. : en es
  • CH219860A - Process for the preparation of a condensation product of trimethylhydroquinone and tetrahydrofarnesyl halide. : de en
  • DE717990C - Mincer for fiber material : de en
  • FR870048A - Device applicable to the braking of rotating parts : en fr
  • US2274232A - Rotary motor : en
  • FR869870A - Simultaneous dyeing and finishing process for textile products : en fr
  • US2274026A - Arm protector for automobile doors : en
  • US2274414A - Method of disposing of fly ash : en
  • CA403128A - Backfire oil trap : en fr
  • US2273934A - Noise limiting device : en
  • US2274415A - Telemetering system : en
  • FR869934A - Opposed piston compressor unit : en fr
  • DE717851C - Device for the intimate mixing of vapors and liquids in exchange columns : de en
  • FR869866A - Method and device for adjusting the sharpness in the electrical transmission of images : en fr
  • US2274432A - Extrusion apparatus for coating veneers : en
  • US2273879A - Shingle : en
  • CH219794A - Carbon anode. : de en
  • DE717921C - Process for the production of a non-sticky, spreadable molasses-containing dry feed : de en
  • US2273913A - Valve gear for compound locomotive engines : en
  • US2274396A - Dial clearing means for meters : en
  • CH219828A - Vehicle brake. : en fr
  • US2273822A - Treatment of polystyrene : en
  • US2274034A - Evaporative heat transfer apparatus : en
  • GB543413A - An improved remote control device for use with plug and socket connexions for electric machinery such as conveyors and coal cutting machines : en
  • US2273996A - Autonomic electrical current converting device : en
  • US2274240A - Suspended arch for furnaces : en
  • US2274369A - Electrical control system : en
  • DE717814C - Machine for transferring pigment and transfer papers to cylindrical printing form carriers : de en
  • DE717971C - Device for achieving two Roesschenwege of different sizes on flat weft knitting machines : de en
  • FR869956A - Autopulmonary oxygen supply valve for oxygen breathing apparatus without constant dosage : en fr
  • DE717725C - System for cladding tubular steel with plain bearing metal : de en
  • GB543437A - Improvements in and relating to alternating electric current induction type watt hour meters : en
  • FR870029A - Board game : en fr
  • GB543428A - Improvements in or relating to machine tool-holders : en
  • GB543481A - Improvements in methods of and means for projecting images with flickering effect : en
  • US2273815A - Boat propelling and maneuvering attachment : en
  • GB543488A - Improvement in or relating to the preparation of resinous composition : en
  • GB543499A - Improvements in electron discharge tubes : en
  • US2274427A - Mechanism for preventing overloading : en
  • PL30383B1 - : en pl
  • FR869908A - Arrangement for bore gauges and the like : en fr
  • US2274458A - Cylinder and method of making same : en
  • US2273990A - Method of making spark plugs : en
  • ES148333A1 - REMOTE SIGNAL COMMAND AND TRANSMISSION SYSTEM : en es
  • GB543375A - Improvements in or relating to the catalytic conversion of hydrocarbons : en
  • FR869888A - Improvements to current rectifiers with synchronous contacts : en fr
  • GB543387A - Improvements in or relating to radio-receiving sets : en
  • US2274048A - Container, cabinet, and the like : en
  • CA403068A - Sleeve valve engine : en fr
  • CA403015A - Manual bookkeeping apparatus : en fr
  • US2274280A - Hoist : en
  • US2274474A - Alkoxy alkylol cyanamide compound : en
  • US2274528A - Pole guying fixture : en
  • GB543357A - Improvements in or relating to electric resistance heating elements : en
  • DE717968C - Additive to lubricants : de en
  • US2274085A - Shoe : en
  • ES148828A1 - APPARATUS FOR MEASURING LIQUIDS : en es
  • GB543359A - Improvements relating to two-stroke internal combustion engines : en
  • CA403082A - Fish lure : en fr
  • US2273817A - Windshield cleaner : en
  • US2274009A - Toy cannon or howitzer : en
  • US2274455A - Latch mechanism : en
  • US2274141A - Safety razor : en
  • GB543389A - Cam mechanisms for operating the valves of internal combustion engines : en
  • CH219756A - Device on vehicle engines with cylinders lying opposite one another in a horizontal plane for cooling them by an axial fan. : de en
  • US2274041A - Fractionating plate construction : en
  • GB543492A - Improvements in or relating to sound and vibration damping supports for machines and the like : en
  • US2274155A - Towel cabinet : en
  • US2274325A - Sandwich cooker : en
  • DE717933C - Circuit arrangement for the transmission of switching processes in telecommunications systems : de en
  • US2274542A - Reed-forming device : en
  • CH219806A - Circuit arrangement to prevent incorrect connections in teleprinter systems with dialer operation. : de en
  • DE717961C - Three-phase transformer controllable by magnetic shunt : de en
  • DE718041C - Set of blades for the agitator shaft of washing machines for agricultural products : de en
  • US2273905A - Oxides of substituted phenothioxins : en
  • US2274163A - Luminescent material : en
  • US2274190A - Electrical meat cooker : en
  • USRE22040E - Buckle : en
  • US2273936A - Opaque and slide projection apparatus : en
  • US2274199A - Electrical musical instrument : en
  • CH219707A - Waterproof watch box. : en fr
  • CH219815A - Circuit arrangement for telephone systems with main and sub-offices and voter operation. : de en
  • US2273960A - Fluorescent lamp : en
  • US2274411A - Wire supporting and joining fixture : en
  • PL30388B1 - : en pl
  • SU60905A1 - The method of automatic arc welding : en ru
  • US2274449A - Chromones and process for producing same : en
  • US2274551A - Derivatives of resins and their preparation : en
  • DE718038C - Nipple connection for the links of sheet steel boilers : de en
  • DE717924C - Spin-dryer for cleaning paper, cellulose and wood pulp suspensions : de en
  • US2274304A - Piston : en
  • US2274395A - Locomotive : en
  • GB543457A - Improvements in or relating to apparatus for precipitating metal by decomposition of a gaseous compound thereof : en
  • US2274107A - Paraffin cutter : en
  • US2273837A - Faucet connector : en
  • US2273902A - Apparatus and method for preheating of air and the like by conduction : en
  • PL30377B1 - Method of obtaining zinc : en pl
  • DE717830C - Electric roller : de en
  • GB543381A - An improved hand-operated grab for handling incendiary bombs and the like : en
  • GB543432A - Stabilization of wet processed starch pastes with urea or thiourea-formaldehyde compounds : en
  • US2274353A - Dual wheel assembly : en
  • CH219746A - Light metal pistons for internal combustion engines. : de en
  • US2273975A - Apparatus for the production of music : en
  • DE717868C - Device for machining crankshafts : de en
  • US2274340A - Seed gathering apparatus : en
  • US2274569A - Internal combustion engine : en
  • US2274425A - Method of making slivers : en
  • US2273946A - Indicator : en
  • US2274384A - Control system : en
  • US2274618A - Core oil : en
  • ES148845A1 - MECHANISM FOR ELECTROMAGNETICALLY INJECTING FUEL INTO OVERSIZED AVIATION ENGINES : en es
  • GB543394A - Means for mounting instruments and other articles on panels : en
  • US2274245A - Mixing method and apparatus : en
  • DE717922C - Device for the continuous dissolving and grinding of waste paper, cellulose and similar fiber material : de en
  • AU114689B2 - Improvements in or relating. to variable gain amplifiers : en
  • CH219663A - Process for the production of moldings. : de en
  • US2273894A - Composite metallic fabric : en
  • US2273836A - Automaton merchandising device : en
  • US2274219A - Holder for spoons and the like : en
  • US2274248A - Well surveying method : en
  • US2274461A - Muffler : en
  • PL30360B1 - Switching device for variable gears, especially for reverse gears and similar : en pl
  • US2274143A - Multifocal ophthalmic lens : en
  • US2273864A - Reactivation of hydrogenating catalysts : en
  • US2273877A - Door saddle : en
  • CH219715A - Lining on centrifugal casting molds. : de en
  • CA403080A - Sugar bearing material processing : en fr
  • US2274588A - Stable rubber hydrochloride : en
  • US2274596A - Fishing plug : en
  • CA403098A - Matrix for electroforming foraminous sheets : en fr
  • CH219731A - Hand tool for burning off old paint on wood and masonry or the like, as well as for quick drying of repaired areas before repainting. : de en
  • DE717803C - Quick-release vice : de en
  • GB543468A - Improvements in or relating to the reduction of aluminium and like metals : en
  • CH219637A - Shoe sole. : de en
  • US2274295A - Flexible transmission : en
  • DE717849C - Process for the production of floor jackets for partial jacketed floors with intermediate floors : de en
  • ES148846A3 - IMPROVEMENTS IN THE CONSTRUCTION OF BUILDING FLOORS : en es
  • FR869865A - Device for automatic switching of a multistage compressor for aircraft engines : en fr
  • FR869867A - Coil system : en fr
  • GB543382A - Improvements in liquid-blast electric circuit breakers : en
  • CH219805A - Charge self-vendors for electricity, gas, water or the like. : de en
  • CA403016A - Bucksaw : en fr
  • US2274393A - Retaining clasp : en
  • AU8041A - Improvements relating to filters : en
  • CH219789A - Arrangement to reduce the electrical strength in any media. : de en
  • DE717858C - Gas or oil heated air heater with a fan : de en
  • GB543460A - A method for sterilization by means of ultra-violet rays : en
  • SU60896A1 - Device for wireless telegraph manipulation : en ru
  • US2274443A - Bate of turn gyroscope : en
  • US2274243A - Chamber charging mechanism : en
  • DE717914C - Process for the production of synthetic resin pressed pieces from tablets : de en
  • CH219651A - Process for the production of a condensation product. : de en
  • US2274193A - Slicer device : en
  • US2274580A - Production of metal castings : en
  • US2274386A - Smoking pipe : en
  • DE717960C - Control transformer with a fixed core part carrying the primary winding parts and the secondary winding parts and a core part that is adjustable in relation to this : de en
  • USRE22036E - Watchcase : en
  • AU41341A - Improvements in or relating. to variable gain amplifiers : en
  • DE717959C - Process for reshaping pipes made of thermoplastic materials : de en
  • US2273814A - Newspaper vending machine : en
  • US2274575A - Installment posting machine : en
  • FR869905A - Balancing device for electromagnetically controlled DC-field variometers : en fr
  • GB543493A - Electron discharge apparatus : en
  • GB543434A - Improvements in spun glass products : en
  • FR869906A - Fuel, process and equipment for its manufacture : en fr
  • US2274114A - Machine for operating upon hides, skins, leather, and other sheet material : en
  • US2274296A - Electrical transformer : en
  • US2273838A - Photometer : en
  • US2273854A - Device for positioning containers on vehicles : en
  • DE717973C - Frame for Haecksler : de en
  • DE717800C - Storage of a machine gun on a tripod with a ball joint head : de en
  • DE717791C - Arm sewing machine : de en
  • ES148847A3 - PROCEDURE FOR THE MANUFACTURE OF A MATERIAL FOR PROJECTION SCREENS : en es
  • DE717882C - Process for preparing slide film images for projection : de en
  • DE711795C - Disc brake for motor vehicles or aircraft : de en
  • US2274115A - Computing counter : en
  • ES146576A1 - A process for the electrolytic production of neutral hypochlorinated solutions and the corresponding means and apparatus used in this process. : en es
  • FR869973A - photographic emulsion based on silver halides : en fr
  • US2274556A - Marking the flaps and the films for photographic film packs : en
  • US2274131A - Fishhook coupling : en
  • US2274311A - Mechanical pencil : en
  • DE717764C - Process for the production of highly filterable, high-grade calcium hypochlorite : de en
  • DE717994C - Drilling device with drill pot that can be moved up and down on the drill rod by pulling cords : de en
  • FR869987A - transformable vice : en fr
  • US2273892A - Apparatus and method for preheating of air and the like : en
  • US2274523A - Method for the separation of chemically modified rosin alcohols into components : en
  • US2274070A - Short-circuited winding for induction machines : en
  • US2273900A - Internal combustion engine : en
  • US2274302A - Compounded oil : en
  • US2274472A - Railway car end construction : en
  • DE717927C - Device for the previous adjustment of the delivery rate of a device for dispensing liquid : de en
  • PL30338B3 - : en pl
  • BE443575A - : en
  • CA403021A - Bee swarm connector : en fr
  • GB543392A - Improved automatic clutch or the like for electric motor or other prime mover : en
  • GB543421A - Improvements in or relating to apparatus for reducing the cross-sectional area of elongated metal bodies : en
  • US2274184A - Phase and frequency variation response circuit : en
  • US2274284A - Method and apparatus for treating materials : en
  • PL30330B1 - A device for molds at presses : en pl
  • DE717815C - Device for the hydraulic preloading of the compression springs in ring roller presses : de en
  • US2274179A - Apparatus for coating, printing, and treating sheet material : en
  • FR869971A - Staged spring suspension, especially for off-road cars : en fr
  • DE717926C - Containers, in particular made of glass, porcelain or the like, with a handle device : de en
  • CA403034A - Electric lamp : en fr
  • CH219671A - Process for the production of dies for pressure bodies. : de en
  • US2274342A - Game apparatus : en
  • FR869879A - Shoe mounting device and machine for heel seat work : en fr
  • DE718028C - Switch box with built-in automatic switch, the actuation axis of which runs perpendicular to the drive axis : de en
  • DE717771C - Method for operating two-stroke composite piston internal combustion engines : de en
  • CA403126A - Needle loom : en fr
  • CA403115A - Photoelectric cell circuit : en fr
  • PL30322B1 - : en pl
  • AU114700B2 - Improvements relating to liquid fuel burners : en
  • US2273986A - Piston : en
  • US2274059A - Delayed action and indicating electric fuse : en
  • US2273955A - Loop antenna : en
  • US2274078A - Downspout connection : en
  • US2274156A - Bell attachment for vehicle wheels : en
  • US2274216A - Door assembly : en
  • US2274267A - Insect repellent : en
  • US2274379A - Control system : en
  • ES148844A1 - PROCEDURE FOR THE MANUFACTURE OF A POROUS FABRIC PERMEABLE, INARRUGABLE, APPROPRIATE FOR CLOTHING ARTICLES AND ESPECIALLY CUELOS : en es
  • CA403071A - Rotary valve and lubrication : en fr
  • DE717913C - Drying device for film strips : de en
  • CH219775A - Coupling between shift drum and axle on rotary switches. : de en
  • CH219686A - Board game. : en fr
  • FR869937A - Collector machine enclosed in a housing and ventilated : en fr
  • FR869938A - Friction wheel transmission mechanism, especially for machine tools : en fr
  • US2274122A - Traveling repeat welder : en
  • DE717993C - Movable seal for centrifugal machines or centrifugal pumps connected to them : de en
  • US2274050A - Apparatus for separating dust from flue gases : en
  • CH219615A - Wood gas generator. : de en
  • US2274529A - Sound film recording apparatus : en
  • CA403008A - Ladder stand : en fr
  • DE717820C - Process for the production of winding supports for voice coils of electrodynamic vibration converters : de en
  • CH219761A - Heat exchange process. : de en
  • CH219765A - Magnetic circuit with a laminated plunger and method and apparatus for making this circuit. : de en
  • US2274140A - Eyeleting machine : en
  • US2273983A - Synthetic rubber composition : en
  • US2274317A - Wall panel securing frame : en
  • CH219867A - Process for the preparation of a resinous condensation product. : de en
  • DE717808C - Circuit arrangement for telephone systems with dialer operation : de en
  • US2273903A - Apparatus for uniformly heating air supplied to a furnace : en
  • US2274171A - Horizontal boring and milling machine : en
  • CA403046A - Cellulosic thread : en fr
  • CH219665A - Process for the production of easily parchmentable pulp. : de en
  • CH219840A - Drive unit on vehicles with rear engine and streamlined body. : de en
  • ES148067A1 - IMPROVEMENTS IN OR RELATIVE TO CIRCUITS OF NEGATIVE RESISTANCES : en es
  • SU60921A1 - Device for determining the work : en ru
  • DK59513C - Stroboscopic Speedometer, preferably for measuring the speed of ships. : da en
  • US2273968A - Pneumatic horn : en
  • USRE22035E - Hair device : en
  • FR869999A - Automobile car : en fr
  • US2274065A - Botilecooler : en
  • DE717980C - Warning device for oxygen breathing apparatus : de en
  • DK59502C - Coupling to Converting a Telephone Subscriber Station to Carrier Frequency Road Operation. : da en
  • US2274550A - Method of making rifled extruded tubes : en
  • FR870034A - Control for refrigeration machines with compressors : en fr
  • CH219714A - Casting mold for the production of clad cast bodies. : de en
  • CA403085A - Printing machine paper spacing mechanism : en fr
  • US2274175A - Electric hoist : en
  • US2274592A - Resistance material and method of making the same : en
  • ES146123A3 - Toy consisting of a duck with rubber or rubberized cloth tongues, in the shape of legs, adhered to the wheels, on which the duck is mounted, and which, when pushed forward, gives the exact sensation of the moldings or anima swinging : en es
  • GB543373A - Improvements in and relating to cop-winding machines with automatic cop-tube changing devices : en
  • PL30384B1 - A method of producing azo dyes on fibers : en pl
  • US2273928A - Mercury interrupter : en
  • US2274104A - Drying frame or tray : en
  • US2273919A - Aircraft wing structure : en
  • FR869945A - Improvements to television receivers : en fr
  • FR869969A - Improvements to gasifiers : en fr
  • GB543403A - Improvements in or relating to the manufacture of electron discharge devices : en
  • DE717871C - Car bodies, especially for motor vehicles : de en
  • US2274377A - Electric switch and light fixture : en
  • DE718056C - Ball game : de en
  • ES148834A1 - IMPROVEMENTS IN THE TRANSMISSIONS OF METAL TAPES WHICH ENGAGE WITH DENTATED PULLEYS : en es
  • GB543445A - Improvements relating to stoves for burning solidified petroleum and like fuels : en
  • CH219767A - Electric motor. : de en
  • CH219866A - Process for the preparation of a resinous condensation product. : de en
  • US2274625A - Portable stick handling device : en
  • DK59501C - Snow removal device. : da en
  • US2274450A - Fuel distributor : en
  • AU39241A - Improvements in the seed and fertiliser hopper boxes of combines or seed and fertiliser drills : en
  • US2273961A - Paper feed for wrapping machines : en
  • GB543371A - Improvements in and relating to indexing or dividing heads : en
  • FR869919A - Badger holder : en fr
  • US2273956A - Micrometer indicator for measuring machines : en
  • FR869918A - Spark plug cleaner : en fr
  • US2273925A - Stabilized drilling mud : en
  • CH219611A - Manure stirrer. : de en
  • DE717781C - Brush holders for electrical machines : de en
  • DE717965C - High pressure electric metal vapor discharge lamp : de en
  • GB543456A - Improvements in or relating to arrangements for controlling two or more electric vapour-or gas-discharge tubes : en
  • PL30367B1 - A method of heat treatment of hollow annular objects and an apparatus for carrying out the method : en pl
  • ES144649A1 - A new mermaid : en es
  • ES148842A1 - A PROCEDURE TO SEPARATE THE MOLECULAR COMPONENTS OF ELECTRICAL SUBSTANCES : en es
  • US2274546A - Radio compass : en
  • CH219625A - Sales system with stacking compartments. : de en
  • US2274003A - Method of hydrocarbon oil conversion : en
  • US2274251A - Detachable coupling for lubricating apparatus : en
  • DE717785C - Resistance welding device that is fed via gas or vapor discharge paths : de en
  • GB543442A - Improvements in metal mirrors : en
  • ES148837A3 - A PROCEDURE FOR OBTAINING SYNTHETIC RESINS : en es
  • DE718001C - Electron tubes used for amplification control with a screen grid dividing the discharge path into two partial discharge paths connected in series : de en
  • DE718025C - Insulating clamp : de en
  • GB543487A - A method of rendering wood, cork and like material waterproof : en
  • FR869932A - Improvements to flexible wire switches : en fr
  • PL30391B1 - : en pl
  • US2274346A - Frequency selective transmission line : en
  • CH219619A - Purifier-filter for gas from charcoal gas generators suitable for powering internal combustion engines in general and particularly for motor vehicles. : en it
  • CH219623A - Spring bandage. : de en
  • US2273907A - Hoist control : en
  • US2274260A - Method of producing permeable bodies : en
  • FR869996A - Arc welding transformer : en fr
  • FR870015A - Current and power feedback relays for direct and alternating currents : en fr
  • GB543489A - Improvements in or relating to vulcanizing presses : en
  • US2274038A - Disk plow : en
  • PL30316B1 - : en pl
  • US2274610A - Apparatus for wax treating paper disks and the like : en
  • FR869967A - Rotary mechanism for motors, pumps and compressors : en fr
  • US2274053A - Tabulating machine : en
  • US2274577A - Lasting machine : en
  • DE717877C - Extinguishing chamber switch : de en
  • PL30369B1 - Method of removing the unpleasant odor or bad taste of mill products, e.g. flour, or starting materials, e.g. stone fruit, legumes and similar : en pl
  • US2274200A - Anticavitation hydrofoil : en
  • DE717801C - Dishwasher : de en
  • CA403059A - Roll film camera mechanism : en fr
  • CH219674A - A method of manufacturing a photographic package composed of wrapping material and photosensitive material, and a photographic package made therefrom. : de en
  • US2274040A - Tabulator : en
  • US2274154A - Universal joint : en
  • CH219595A - Process for the separation of coal and ash-forming impurities therefrom. : de en
  • US2274347A - Negative resistance circuit arrangement : en
  • DE717887C - Receiver for true-to-angle remote transmission devices for remote display of surface and solid angles of any size : de en
  • US2274103A - Telegraph printing system : en
  • US2274484A - Railway vehicle : en
  • US2274597A - Furnace for the reduction of metals : en
  • DE717865C - Hollow blade for exhaust gas turbine wheels made of two parts welded together : de en
  • PL30310B1 - : en pl
  • FR870020A - Manufacturing process of concentrated nitric acid from oxides of nitrogen, oxygen or gases containing it and water : en fr
  • CH219758A - Cooling device on cylinders of air-cooled internal combustion engines. : de en
  • CH219842A - Drive unit on vehicles with a transverse engine in the rear. : de en
  • ES148839A1 - IMPROVEMENTS IN THE VERTICAL RETORTAS FOR THE DISTILLATION OF CARBONOS MATERIALS : en es
  • GB543504A - Saw-tooth wave generator : en
  • DK59507C - Yarn key holder for knitting or crochet yarn. : da en
  • DE717846C - Hydraulic double press : de en
  • DE717880C - Softener for films made from regenerated cellulose or from cellulose formate : de en
  • PL30334B1 - : en pl
  • PL30335B1 - Hessenwerk Rudolf Majert Kommanditgesellschaft, Kassel-Bettenhausen Pressure reducing valve : en pl
  • DE717937C - Device for the automatic ignition of gas flames of all kinds : de en
  • ES148668A3 - A CAN OPENING APPLIANCE USED AS A LANDFILL : en es
  • CH219624A - Hot water generator. : de en
  • US2274366A - Television scanning : en
  • CH219639A - Mountain shoe nail. : de en
  • US2274365A - Voltage regulator : en
  • DE718020C - Circuit arrangement for telephone systems with dialer operation : de en
  • GB543418A - Improvements in or relating to hydraulic distant servo-control arrangements : en
  • DE717712C - Spur planetary gear : de en
  • ES148860A1 - LAUNCH COUPLING FOR IGNITION DEVICES OF EXPLOSION AND INTERNAL COMBUSTION ENGINES : en es
  • US2274004A - Treatment of corn protein : en
  • DE717945C - Device for the vertical guidance of wheel axles supported by longitudinal leaf springs for motor vehicles : de en
  • US2274165A - Display rack : en
  • US2274394A - Refrigerating machine : en
  • US2274487A - Transport truck for lawn mowers : en
  • US2274602A - Preservation of semihard rubber compositions : en
  • FR870013A - Automotive roof closing device : en fr
  • US2274322A - Lighting system : en
  • DK59514C - Procedure and Apparatus for Starting Generator Gas-Engined Engines. : da en
  • CH219759A - Device for air cooling of multi-cylinder vehicle engines. : de en
  • AU95941A - Improvements in or relating to circuit arrangements forthe transmission of electrical oscillations : en
  • CA403067A - Striped elastic fabric : en fr
  • GB543477A - Improvements in electric toasters : en
  • US2273938A - Turntable speed governor : en
  • US2273994A - Machine and process for making slide fastener stringers : en
  • SU60918A1 - MagnetoFugal mechanism : en ru
  • FR869980A - Side-by-side two-seater bicycle : en fr
  • GB543464A - Improvements in or relating to the catalytic cracking of hydrocarbon oils : en
  • US2273924A - Fluid pressure braking system : en
  • US2274446A - Bunch builder : en
  • US2274385A - System of processing lint : en
  • US2274336A - Control system for refrigerating apparatus : en
  • US2274534A - Collapsible cabinet : en
  • DE717992C - Sludge valve for centrifugal drums for intermittent emptying of the sludge chamber during operation : de en
  • DE718006C - Device for monitoring work performed at varying levels over time (energy supplied, amount consumed) : de en
  • CH219793A - Electric salt bath furnace for tempering special steels. : de en
  • US2274409A - Liquid dispensing apparatus : en
  • DE717930C - Electric shot counter, especially for automatic firearms : de en
  • DK59519C - Conversion device for slot-controlled two-stroke ship combustion power engines. : da en
  • FR869985A - Ventilation with hot air : en fr
  • FR869950A - Improvements to ultra-short wave devices : en fr
  • US2274039A - Television : en
  • US2274607A - Coffee maker : en
  • DE718052C - Grinding process for centerless grinding machines : de en
  • DE717775C - Process for the preparation of oil sands : de en
  • PL30342B1 - : en pl
  • DE717886C - Device for applying liquids to cinematographic film strips provided with perforations : de en
  • CH219803A - Syringe for medical purposes. : de en
  • CH219861A - Process for the preparation of a dye of the anthraquinone series. : de en
  • DE717780C - Arrangement for generating high DC voltages : de en
  • DE717932C - Multiple remote measurement method : de en
  • DE717997C - Process to accelerate technical fermentations : de en
  • US2274341A - Heating apparatus : en
  • DE718053C - Machine for cutting hair : de en
  • CA403072A - Insecticidal composition : en fr
  • CH219783A - Identification cartridge for fuses. : de en
  • DE717935C - Individual spindle drive for spinning and twisting machines : de en
  • DE718013C - Process for the production of anhydrous or anhydrous magnesium sulfate : de en
  • GB543410A - Improvements in and relating to bearings : en
  • CA403130A - Pigment and textile material : en fr
  • CH219766A - Small motor, especially small synchronous motor. : de en
  • FR869862A - Continuous flow self-carbonizing furnace : en fr
  • FR869968A - mechanical depilation of skins, in particular rabbit and hare skins, for the manufacture of fur hats, etc. : en fr
  • DE713400C - Device for resilient support of the electrode system of electron tubes : de en
  • CH219682A - Lifting roller. : de en
  • CH219745A - Multiple plug device in the course of several parallel lines, in particular of high-voltage cables of ignition systems for operating internal combustion engines. : de en
  • GB543425A - Improved polyamide compositions : en
  • DE713690C - Process for the preparation of dry alkali phenolates of the three or more carbon atoms in the ester alkyl containing ester of p- and m-oxybenzoic acid : de en
  • DE717772C - Installation on machines with free-flying pistons : de en
  • US2273832A - Method of making metal powder : en
  • US2274389A - Asymmetrical antenna with shielded feed line : en
  • CA403069A - Cast refractory block : en fr
  • CA403093A - Electrical connector : en fr
  • US2274285A - Combined lunch kit and electric griddle : en
  • CA403142A - Camera case : en fr
  • DE717974C - Machine for breaking hard-skinned fruits, especially almonds : de en
  • US2273901A - Apparatus for preheating the air supply for a furnace : en
  • US2274130A - Apparatus for spinning fibers : en
  • DK59515C - Resilient Clutch. : da en
  • DE717838C - Equipment on tear strength testers for rubber rings for immediate reading of the elongation in percentages of rings of different diameters : de en
  • FR869899A - Variable transmission ratio braking device in the linkage : en fr
  • GB543404A - Standpipe connection for pumps : en
  • US2274106A - Weatherproof cabinet : en
  • US2274606A - Can packing machine : en
  • FR869913A - : fr
  • GB543459A - Compositions for use in agriculture or horticulture : en
  • US2274576A - Shoemaking method : en
  • DK59506C - Apparatus for generating short-term electric shocks. : da en
  • US2273863A - Sound record : en
  • GB543363A - Manufacture of tetrahydro-dibenzopyran derivatives : en