• US2288193A - Structural member and building structure : en
  • US2288477A - Production of isobutane : en
  • CH222034A - Steam generator with a shaft-shaped combustion chamber and a horizontal gas flue above. : de en
  • CH221889A - Method and device for igniting fuel. : de en
  • CA405795A - Door mounting : en fr
  • CH222026A - Control device for single and multiple extraction steam turbines, extraction multi-pressure and multi-pressure steam turbines, which is operated by hydraulic fluid. : de en
  • PL30655B1 - : en pl
  • DE722173C - Guide for guiding and combining of glass or similar artificial individual threads produced by mechanical pulling : de en
  • US2288029A - Apparatus for forming hollow glass articles : en
  • USD132908S - Purchaser s profit-sharing indicator or the like : en
  • CA405730A - Direction indicator : en fr
  • CH221971A - DF device with rotating directional antenna. : de en
  • CA405779A - Thermionic valve : en fr
  • US2287920A - Counter shaper : en
  • US2287986A - Resinous coating composition : en
  • US2288382A - Governor : en
  • US2288331A - Circuit breaker testing apparatus : en
  • US2288472A - Circuit interrupter : en
  • AU291241A - An improved gas filter : en
  • US2287773A - Rubberlike materials : en
  • US2287852A - Blocking apparatus : en
  • FR873292A - Capacitor switch : en fr
  • DE722136C - Film switching device : de en
  • CH222102A - Bicycle tires. : de en
  • US2287785A - Regenerative furnace : en
  • US2288408A - Alternating current commutator machine : en
  • US2287927A - Automatic washing machine : en
  • US2288218A - Holder for work objects : en
  • FR873209A - Process for the purification of waste water from the dairy industry and similar industries : en fr
  • CH222005A - Guillotine shears. : en fr
  • US2287982A - Oil filter : en
  • FR873271A - Preservation process for low-sugar vegetables : en fr
  • AU176841A - Improvements in or relating to receivers for start-stop printing telegraph signals : en
  • US2288112A - Process of treating superphosphates : en
  • US2288313A - Article of wearing apparel, accessory, and the like : en
  • US2288584A - Surgeon's screw driver, screw holder, and stabilizer : en
  • GB546254A - Improvements relating to railway sleepers : en
  • CA405744A - Mower driving head : en fr
  • US2288533A - Process for the production of artificial resins : en
  • CA405802A - Radiator cleaning composition : en fr
  • CA405860A - Tuberculin test strip : en fr
  • AU115370B2 - Improvements in or relating tothe purification of magnesium and magnesium alloys : en
  • CH221859A - Shaking device on threshing machines. : de en
  • CH221870A - Oven attachment. : de en
  • CH222028A - Internal combustion engine. : en fr
  • US2288178A - Process of preparing acylated halogen alkyl amines : en
  • US2287765A - Yarn treating apparatus : en
  • GB546195A - Improvements in or relating to sound recording and reproducing apparatus : en
  • PL30618B1 - Giinther Jobst, Berlin The electron tube and its connection system : en pl
  • PL30635B1 - : en pl
  • PL30645B1 - Device for continuous coating of steel pipes. Bituminous protective mass, hot liquid : en pl
  • US2288383A - Railway truck : en
  • US2287861A - Treatment of titanium solutions : en
  • FR873189A - Crawler tractors with shield : en fr
  • US2287878A - Rubber footwear : en
  • US2288106A - Viscose spinning solution : en
  • US2288501A - Airplane : en
  • CA405725A - Aircraft landing gear : en fr
  • US2288514A - Cooling system for internal combustion engines : en
  • USD132932S - Design for a textile fabric : en
  • PL30636B1 - A device for jump-testing the cells of a chain of hanging insulators, assembled in an electrical transmission line : en pl
  • US2288530A - Sulphonic acid amide compound : en
  • GB546121A - Improvements in or relating to light structures : en
  • FR873106A - Improvements to tanks to develop films in broad daylight : en fr
  • US2288249A - Change giving vending machine : en
  • US2288464A - Electric dehorner : en
  • US2288145A - Friction catch : en
  • CA405822A - Radio volume control means : en fr
  • CH222042A - Earthing for electrical systems. : de en
  • US2287800A - Intermittent drive mechanism : en
  • FR873248A - Tap : en fr
  • FR873264A - Footwear and its manufacturing process : en fr
  • CA405838A - Resilient wheel : en fr
  • CH222170A - Process for the preparation of a condensation product from 2-ethyl-3,5-dimethylhydroquinone and phytol. : de en
  • CH222055A - Hot cathode for gas or vapor-filled discharge tubes, which is made up of directly heated individual elements connected in parallel. : de en
  • DE722132C - Process for reducing the caffeine content in coffee and tea : de en
  • DE722088C - Process for evaporating technical fluids which tend to form crusts : de en
  • DE722192C - Device for variable inductive or capacitive coupling of two high-frequency circuits : de en
  • FR873274A - Rubber bandage : en fr
  • US2288012A - Adjustable nozzle for tempering bottles and other glass containers : en
  • US2288510A - Temperature control : en
  • US2288546A - Sash pulley brake : en
  • USD132916S - Design for a hat : en
  • FR873244A - Improvements to gasifiers : en fr
  • GB546259A - Improvements relating to chuck bodies of machine-tool spindles : en
  • US2287817A - Can end assembling machine : en
  • US2287849A - Antistick surface coating : en
  • US2288221A - Register device : en
  • DE722121C - Method and device for the production of low-whey cheese mass from thick milk : de en
  • GB546144A - Improvements in or relating to the moulding of windows, doors and like structures from concrete or other mouldable material : en
  • GR9914B - COME FIXER (FIXATIR) FROM CARBON SEEDS. : el en
  • DE722213C - Subtraction counter with differential gear : de en
  • CH222027A - Free flight piston machine. : de en
  • CH222101A - Wheel tires. : de en
  • US2288186A - Electromagnetic relay : en
  • CA405831A - Ortho-dinitrile manufacture : en fr
  • CH222025A - Blade ring for fastening a radially loaded blade ring to the disc. : de en
  • GB546153A - Improved apparatus for transformer tap-changing under load : en
  • US2288498A - Mower : en
  • US2288520A - Cash register : en
  • CH221900A - Canning pot. : de en
  • CH221906A - Device for cutting wire into sections of determined length and adjustable at will. : en fr
  • FR873297A - Soap substitutes : en fr
  • CH221970A - Method and device for determining the exact bearing minimum when determining the direction of electromagnetic waves. : de en
  • DK59927C - Bicycle support. : da en
  • US2287921A - Suction cleaner : en
  • US2288469A - Protecting cover for automobile seats and the like : en
  • US2288001A - Framing mechanism for motion picture projectors : en
  • FR873162A - Rail vehicle intended for high speeds : en fr
  • FR873187A - Device for automatically maintaining constant DC voltage : en fr
  • GB546143A - Improvements in and relating to a method of and means for weaving on looms : en
  • CA405819A - Stamp counting machine : en fr
  • PL30662B1 - Method of processing multi-isoolefins : en pl
  • US2287886A - Container ship : en
  • US2287937A - Gear shifting apparatus : en
  • US2288274A - Rotatable unit : en
  • US2288351A - Wax emulsion : en
  • US2288363A - Electric valve frequency changer : en
  • US2288453A - Separating hydrocarbon fluids : en
  • US2288065A - Digestion tube : en
  • US2288380A - High frequency radio tube : en
  • US2287888A - Manganese-base alloys : en
  • US2288026A - Method of and apparatus for initiating metal-removing operations : en
  • US2288206A - Reverse gear : en
  • US2287884A - Piston ring : en
  • GB546228A - Improvements in and relating to elastic fluid turbines : en
  • CA405834A - Electro-responsive device : en fr
  • USD132906S - Commemorative service flag or similar article : en
  • US2287951A - Metal article and method of making same : en
  • US2287802A - Manufacture of storage batteries : en
  • US2288093A - Combined tool handle and lamp : en
  • US2288323A - Calculating machine : en
  • FR873088A - Transportable device for resistance welding : en fr
  • CA405800A - Thermionic valve apparatus : en fr
  • DE722048C - Circuit arrangement for telephone systems with dialer operation and interception device : de en
  • FR873241A - Sound film and apparatus for the projection of this film : en fr
  • DE722097C - Manufacture of alkaline earth arsenates : de en
  • US2287932A - Production of effects on artificial materials : en
  • US2287875A - Circuit breaker : en
  • US2288304A - Machine for die cutting paper : en
  • US2288587A - Refrigeration : en
  • US2287827A - Pipe coating coupler : en
  • USD132894S - Design for a beverage cooler : en
  • DE722069C - Filter card : de en
  • CH222049A - Device for lowering the midpoint surge voltage of single and multi-phase transformers. : de en
  • US2288555A - Spot knife : en
  • DE721844C - Automatic control for water gas systems : de en
  • US2287812A - Parachute harness : en
  • US2287818A - Stud welder : en
  • GB546246A - Improvements in or relating to the coating of glass : en
  • US2288129A - Control apparatus for printing equipment : en
  • AU115357B2 - Improvements in or relating to apparatus for dividing or desurfacing metal by use of an oxidising jet : en
  • SU61442A1 - Device for testing hollow articles for leak tightness with compressed air : en ru
  • CH222151A - Process for the preparation of a new dye of the anthraquinone series. : de en
  • DE722193C - Automatic direction finding device : de en
  • US2288052A - Fabricated wood beam : en
  • DE722224C - Device for watering wood : de en
  • DE722019C - For regulating the inlet or outlet cross-section of a ring-shaped channel serving device with movable ring parts : de en
  • AU315841A - Improved method of applying a silver coating : en
  • US2288333A - Apparatus for purifying petroleum oil : en
  • US2288241A - Protective device : en
  • FR873092A - Improvements in the manufacture of aqueous rubber emulsions : en fr
  • AU180541A - Improvements in or relating tothe purification of magnesium and magnesium alloys : en
  • DE722208C - Thin-walled flush-mounted junction box made of synthetic resin hot-pressed material with lateral cable entry sockets : de en
  • FR873287A - Installation of measuring and indicating instruments in an airplane : en fr
  • US2288083A - Oil burning apparatus : en
  • US2288285A - Dehydrator : en
  • US2288508A - Grinding wheel mounting and control : en
  • DE722021C - Shaft coupling : de en
  • CA405784A - Welding generator : en fr
  • PL30652B1 - : en pl
  • USD132938S - Design fob a t pipe fitting : en
  • US2287990A - Zero sequence isolator : en
  • US2288336A - Catalytic reforming of naphthas : en
  • FR873200A - Process for the production of metal moldings : en fr
  • GB546126A - Improvements in or relating to winding machines for strip material : en
  • US2288509A - Rock and like drill : en
  • US2287807A - Photographic material : en
  • GB546248A - Improvements in or relating to electric tuning systems : en
  • BE445734A - : en fr
  • CA405748A - Wall and ceiling : en fr
  • CH221982A - Method and device for testing viscose for spinning maturity. : de en
  • BE445545A - : en
  • CH221866A - Paved paving for squares and paths. : de en
  • US2287790A - Sewing kit : en
  • US2288105A - Luggage closure construction : en
  • CH221992A - Process for treating a transparent object with a view to reducing the quantity of light reflected by at least one surface of this object and transparent object treated according to this process. : en fr
  • PL30656B1 - Wlodzimierz Germak, Przeworsk at Jj * J / Wlodzimierz Germak, Przeworsk at Jj * J / Wlodzimierz Germak, Przeworsk at Jj * J / : en pl
  • US2288123A - Heat exchanger tube sheet connection : en
  • US2288559A - Method of molding ornamental panels : en
  • CH222076A - Process for the preparation of p-aminobenzenesulfone-p-methoxybenzoylamide. : de en
  • DE722094C - Process for the production of highly porous lightweight bodies : de en
  • US2287901A - Production of improved oils for lubricating purposes : en
  • US2288149A - Manifolding method and means : en
  • CH221910A - Process for finishing the right surface of knotted carpets made from textile waste cut into ribbons. : de en
  • CH222150A - Process for the preparation of a triarylmethane dye. : de en
  • CH222065A - Single-anode converters. : de en
  • US2287855A - Method of and apparatus for producing refrigeration : en
  • US2288155A - Car door : en
  • US2287832A - Heel-seat fitting machine : en
  • FR873245A - Method and device for measuring icing speed on board aircraft : en fr
  • GB546251A - Improvements in or relating to control apparatus for boring and facing or other machines : en
  • AU81341A - Wrap stripe device for circular knitting machine : en
  • GB546258A - Improvements in roll-over plows : en
  • GB546124A - Improvements in or relating to automatic electric arc welding : en
  • USD132900S - Design for a hair clipper blade : en
  • FR873166A - Television receiver system for the gap synchronization method : en fr
  • FR873183A - Welded construction parts : en fr
  • US2288184A - Method of making stainless-clad sheet steel : en
  • FR873112A - Process for obtaining vegetable oil from succulents : en fr
  • FR873215A - Oil cooling arrangement, for air-cooled engines of rear-engined aero-dynamic vehicles : en fr
  • GB546130A - Separating gases from liquid : en
  • GB546176A - Improvements in or relating to airscrew-blades : en
  • US2288447A - Container and support therefor : en
  • CH221964A - Delay detonator. : de en
  • US2288071A - Garment separator with size indicator : en
  • US2288076A - Steering gear for ships : en
  • US2288470A - Protective stair edging : en
  • FR873097A - Gasifier gas dewatering and purification device : en fr
  • US2288315A - Interpolymerization product of a diallyl ether and an unsaturated alkyd resin : en
  • GB546238A - Improvements in or relating to direction finding radio beacons : en
  • CA405836A - Printing telegraph apparatus : en fr
  • DE722167C - Switchgear for high voltages : de en
  • US2288165A - Film treating apparatus and process : en
  • GB546265A - Improvements in and relating to piston rings, piston valve rings and the like : en
  • FR873074A - Cable machine : en fr
  • GB546267A - Method and apparatus for generating and superheating steam : en
  • US2288017A - Internal combustion engine : en
  • US2288322A - Moldable copal composition and method of making the same : en
  • FR873151A - Detector : en fr
  • US2288354A - Hoisting equipment : en
  • FR873119A - Device for the dissociation of ammonia : en fr
  • US2288367A - Tube still : en
  • US2288568A - Creeper : en
  • FR873224A - Improvements to electric lamp holders : en fr
  • DE722168C - Assembly trolley for switchgear or the like. : de en
  • FR873170A - Fluid circulation hydraulic coupling : en fr
  • FR873096A - Universal adjuster for tool holder in machine tools and other applications : en fr
  • FR873169A - Device for draining fluid circulating hydraulic couplings or transmissions : en fr
  • GB546134A - Improvements in or relating to irreversible mechanisms : en
  • GB546201A - Improvements in or relating to vertical gas fired tubular boilers : en
  • FR873104A - Icing indicator device : en fr
  • FR873188A - Refrigerated cabinet with cold producing machine : en fr
  • US2288454A - Method of forming hollow articles of plastic material : en
  • US2288040A - Work holder for heat-treating apparatus : en
  • US2288179A - Cement and cement manufacture : en
  • US2288433A - Welding joint : en
  • US2287853A - Centrifugal fan : en
  • US2288201A - High tension transformer : en
  • DE722219C - Plain warp knitted fabric with rubber chain threads : de en
  • FR873288A - Process for sanitizing industrial premises : en fr
  • US2288517A - Thermostatic switch : en
  • US2288051A - Compensating double presser foot : en
  • DE722112C - Device for preheating or cooling centrifugal casting molds : de en
  • FR873221A - Spark plugs for internal combustion engines : en fr
  • US2288085A - Roaster : en
  • US2288215A - Pusher device for chronographs : en
  • GB546185A - Improvements connected with a.c. commutator motors : en
  • DE722184C - Brake with two oppositely moving brake discs : de en
  • CA405715A - Electrical switch : en fr
  • CA405781A - Synchronous motor starting means : en fr
  • US2288049A - Telephone set circuit : en
  • US2287895A - Secondary rack construction : en
  • US2288338A - Electric motor control system : en
  • US2288577A - Vehicle door and method of making the same : en
  • US2288168A - Heel : en
  • US2288332A - Dispensing cabinet and method of servicing : en
  • USD132934S - Combined ironing and finishing machine : en
  • US2288161A - Method of and apparatus for forming fiber can bodies : en
  • US2288211A - Process for the production of betaalkoxyaldehydes : en
  • US2288357A - Wire bottle carrier : en
  • FR873233A - Antenna for short and ultra-short waves : en fr
  • PL30671B1 - The method of winding artificial silk thread on spools : en pl
  • FR873108A - System for fixing the reflector in the headlamps : en fr
  • GB546243A - Improvements in or relating to alternating current electric measuring and like instruments : en
  • CH222093A - Flagpole. : de en
  • FR873133A - A method of using soda slag formed during the desulphurization of cast iron, steel and the like : en fr
  • GB546175A - Improvements in or relating to telegraph systems : en
  • FR873179A - Improvements to mounting methods intended to make telegraph signs sharper : en fr
  • US2287889A - Lock joint coupling : en
  • US2288080A - Method of preparing drying sticks for sausage casings : en
  • US2288339A - Electric motor control system : en
  • US2288576A - Sectional pile shell : en
  • FR873101A - Improvements to radiogonioneters : en fr
  • DE722106C - Electrically heated oven : de en
  • FR873211A - Manufacturing process for stable paraffin and water emulsions : en fr
  • US2288166A - Refrigerating apparatus : en
  • USD132926S - Design for an apron : en
  • FR873146A - Spinning reel : en fr
  • GB546208A - Improvements in and relating to sinks : en
  • US2288068A - Crankshaft manufacture : en
  • US2288310A - Apparatus for geoelectric and seismic investigations : en
  • USD132887S - Design for a bracelet : en
  • CH222021A - Socket connection with spherical pipe ends and with internal caulking. : de en
  • US2288015A - Marking die : en
  • FR873018A - Insulating layer rectifier with cooling plate : en fr
  • CH222118A - Air cooled aircraft engine. : en fr
  • US2288207A - Electrical switch, particularly for control of warning and lighting devices for vehicles : en
  • PL30639B1 - : en pl
  • PL30666B1 - A method of producing polyetines or their derivatives : en pl
  • US2287919A - Can gripper : en
  • USD132923S - Box blank or similar article : en
  • US2287822A - Blower : en
  • DK59925C - Device by Aircraft for Automatic Rotation of Auxiliary Emperor. : da en
  • US2288183A - Illuminating motor tool : en
  • US2288412A - Spinning box : en
  • US2288458A - Cycle timer control apparatus for traffic signals : en
  • GB546149A - Improved method for de-husking carob beans : en
  • USD132918S - Design for a container : en
  • CH221861A - Process for coloring the meat of fish in the live state. : de en
  • FR873155A - Process for recovering potassium from dilute solutions : en fr
  • GB546239A - Improvements in or relating to apparatus for heating air : en
  • US2287968A - Means to remotely control devices : en
  • US2288397A - Curtain heading tape : en
  • DE722067C - Method and device for cleaning electrodes : de en
  • PL30674B1 - TelefunkenGesellschaft fiir drahtlose Telegraphie m, b. H., Berlin Connection system for the device for generating current piles : en pl
  • FR873230A - Starting device for internal combustion engines : en fr
  • DE715301C - Airplane for vertical ascent : de en
  • DK59914C - Process for the preparation of salts of β-alkyl-substituted ethylamines. : da en
  • FR873160A - Process for the production of water soluble moth repellants : en fr
  • CH222105A - Device on vehicles, in particular on bicycles and motorcycles, for protecting the legs and feet of the driver against rain and the street manure thrown from the front wheel. : de en
  • US2288081A - Circuit breaker : en
  • US2288303A - Bracket : en
  • US2288374A - Lawn edging, weeding, and soil-working tool : en
  • US2288188A - Method and apparatus for making coated fabrics : en
  • CA405805A - Accounting machine : en fr
  • CH221877A - Process for the production of pressure pipes from hardening compounds. : de en
  • CH221904A - Process for the production of wool substitute fibers from viscose. : de en
  • US2288519A - Cash register : en
  • AU349641A - Improvements in or relating to rotor assemblies and rotors for rotary pumps ofthe sliding vane type : en
  • CA405832A - Heating and humidifying system : en fr
  • CH221931A - Heat-resistant hydrocarbon oil. : de en
  • AU242441A - Improvements in or relating to combined wire support and corrosion inhibitor : en
  • CA405844A - Sliver guide : en fr
  • CH221980A - Average value display device with excess counter. : de en
  • CH221998A - Automatic welding device for arc welding with coated electrodes. : de en
  • CH221952A - Method of copying sound films. : de en
  • CH222099A - Plug coupling for electrical connection cables, especially those on motor vehicle trains. : de en
  • US2288503A - Electrolytic basic metal chromate pigment manufacture : en
  • FR873123A - Improvements to devices for bending remote controls : en fr
  • GB546236A - Improvements in excavators : en
  • SU61491A1 - Breathing press for plywood production : en ru
  • US2288293A - Manufacture of laminated paper, cardboard, and the like : en
  • FR873147A - Improvements to lubrication devices for the top of cylinders of internal combustion engines : en fr
  • GB546221A - Improvements in or relating to driving or tractor units for doors, partitions, or the like : en
  • US2288486A - Multiple-frequency oscillator : en
  • US2288539A - Radio device : en
  • DE722133C - Typewriter postcard : de en
  • DE722197C - Device for rejecting packs with incorrect weight : de en
  • CA405792A - Bottle washing machine carrier : en fr
  • DE722122C - Process for the production of water-soluble moth repellants : de en
  • US2288490A - High-speed motorboat : en
  • US2288305A - Hook mounting : en
  • CH222045A - AC circuit breaker. : de en
  • AU376141A - Treatment of oil cake : en
  • CA405750A - Hollow propeller : en fr
  • PL30632B1 - Device for resilient suspension of aircraft engines : en pl
  • US2288427A - Pneumatic tube carrier : en
  • DE722117C - Stirring club with a stirrer body rotatably mounted on the club shaft : de en
  • FR873053A - Clamping device for pencil sharpening machines : en fr
  • DE722035C - Circuit for call seekers in automatic or semi-automatic telecommunications, in particular telephone extension systems : de en
  • USPP528P - Peach tree : en
  • US2287813A - Trimming machine : en
  • US2287925A - Radio receiver : en
  • CH221986A - Film guidance in a sound film machine. : de en
  • DK59922C - Loss protection for such releasable joint connections used in pivot bars for work tools on agricultural machinery, in particular potato universal machinery. : da en
  • US2288153A - Dressing mechanism : en
  • CH221965A - Plate-shaped land mine. : de en
  • CA405824A - Loading and unloading elevator : en fr
  • CH221924A - Process for the preparation of the sodium salt of N-methylsulfaminomethylsulfinic acid. : de en
  • CA405818A - Mercury recovery : en fr
  • CH222113A - Device on air brakes of vehicles to adapt the braking force to the vehicle load. : de en
  • US2287823A - Crown cap feeding and positioning means : en
  • US2288230A - Gauge and thief hatch : en
  • CA405732A - Musical instrument : en fr
  • CH222054A - Noise suppression capacitor. : de en
  • US2287794A - Apparatus for measuring mechanical power : en
  • USD132898S - Design for an earring : en
  • USD132929S - Design for a moccasin : en
  • US2288342A - Match book : en
  • US2288574A - Method of forming reamer taps : en
  • GB546226A - Improvements in dashpot controls for connection to magnetic overload or time delay relays : en
  • CA405762A - Humidifier unit : en fr
  • CH222013A - Exchangeable electric heating device, especially on dehydrators. : de en
  • US2287973A - Ice tray : en
  • CA405714A - Pyrophoric lighter : en fr
  • US2287796A - Apparatus for measuring mechanical power and/or torque : en
  • US2288404A - Presser foot for sewing machines : en
  • US2288409A - Free-flowing salt composition : en
  • DE722139C - Butt joint for glass or other panes, especially for the hoods of aircraft weapon stands : de en
  • AU586142A - Improvements in and relating tothe cooling of cylinders of internal combustion engines : en
  • CH221948A - Album for collecting loose sheets such as newspaper clippings and the like. : de en
  • CH222159A - Straightening machine convertible to different straightening speeds. : de en
  • CH221928A - Process for the production of a vat dye. : de en
  • DE722207C - Self-supporting aerial cable for telecommunication purposes : de en
  • US2287811A - Change giving vending machine and the like : en
  • US2287856A - Purification of soda ash solutions : en
  • DE722151C - Process and device for the production of artificial threads by the dry spinning process : de en
  • US2288013A - Method of making connectors : en
  • US2287891A - Production of hydrocarbons and their derivatives from mixtures of hydrogen and oxides of carbon : en
  • US2288442A - Device for clamping fishing rods and the like : en
  • USD132936S - Combined lipstick cover and mirror : en
  • US2287931A - Treatment of hydrocarbons : en
  • USD132931S - Handlebar for a velocipede or the like : en
  • DE722109C - Process for the production of durable lipoid emulsions from animal organs, secretions or excretions : de en
  • DE722223C - Bracket, especially for the joint fastening of the valley gutter and the connection plate to the roof cladding of buildings : de en
  • US2288455A - Means for producing musical sounds : en
  • US2288148A - Intermittent film feeding means : en
  • US2288463A - Electric guitar : en
  • US2287826A - Mastic nozzle for coating pipe : en
  • US2287848A - Method of casting : en
  • US2288393A - Fruit press : en
  • DK59930C - Layer for Packing Boxes. : da en
  • USD132886S - Design for a brooch or similar article : en
  • FR873260A - Devices for ensuring the parallel operation of several gasifiers (or the like) supplying a single engine : en fr
  • GB546213A - Improvements relating to the assembly of electromagnetic induction apparatus : en
  • US2288474A - Wheel structure : en
  • US2287913A - Chain link : en
  • US2288429A - Headlight wiper : en
  • US2288391A - Method of making long draft aprons : en
  • US2288421A - Receptacle : en
  • SU61486A1 - Butt Welding Machine : en ru
  • CA405737A - Container closure : en fr
  • CA405726A - Aircraft with retractable undercarriage : en fr
  • FR873261A - Elastic clamping device for electric cables : en fr
  • FR873242A - Propeller brake for car : en fr
  • BE445626A - : en fr
  • AU115350B2 - Improvement infrequency-modulation television signal receiver : en
  • GB546164A - An improved universal coupling for reversing and continuously running torque transmission for rolling mill drives and the like : en
  • DE722092C - Edge protection for propellers : de en
  • CH222051A - Switching device. : de en
  • CH222007A - Furnace for wood treatment. : en fr
  • CH221882A - Toilet flushing device. : de en
  • US2287844A - Rubber covered paving block : en
  • US2287942A - Electronic amplifier : en
  • US2288226A - Photographic emulsion : en
  • CH221915A - Process for the production of raw rubber cork shoe soles. : de en
  • CA405848A - Cellulosic textile material : en fr
  • GR9912B - METHOD I ALLOWED THE EXTRACTION OF ORGANIC ACIDS OR SALTS OF THESE AND CUT CUT PRODUCTS FOR THIS EXPORT. : el en
  • GB546173A - A convertible stretcher, bunk and seat structure : en
  • GB546227A - A new or improved safety device for gas burners : en
  • US2288394A - Sprinkling apparatus : en
  • FR873208A - Leveling excavator tracked motor vehicle : en fr
  • GB546156A - Improvements in or relating to survey instruments : en
  • FR873061A - Key holder : en fr
  • USD132877S - Design for a garment hanger : en
  • CH222000A - Machine for milling the flanges of aircraft wing spars. : en fr
  • CH222100A - All-electric multi-power vehicle. : de en
  • DE722222C - Curtain rod : de en
  • US2287874A - Lamp holder attachment for dental hand pieces : en
  • GB546264A - Improvements in or relating to road or vehicle lighting devices of the screen cap type : en
  • US2287912A - Garment bag : en
  • US2288273A - Method for forming heating coils : en
  • US2288089A - Mercury relay : en
  • US2288434A - Automatic gain control system : en
  • US2288460A - Process for the manufacture of phosphoric acid and its salts : en
  • GB546250A - Improvements in and relating to multi-break electric switching devices : en
  • GB546196A - Improved manufacture of chromite refractories : en
  • CH222048A - Arc extinguishing device. : en fr
  • US2287904A - Derivatives of phenols : en
  • US2288309A - Alkali-resistant iron blue pigment : en
  • US2288485A - Spinning device for square container end closure seams : en
  • US2287871A - Rail joint splice : en
  • US2288308A - Punch and die : en
  • US2287810A - Mixing valve : en
  • US2288042A - Dispensing carton : en
  • US2287900A - Priming valve assembly : en
  • US2288389A - Coated sheet and method of preparing same : en
  • DE722135C - Single lens reflex camera with light meter : de en
  • DE722076C - Clamping device with replaceable, straight and curved tubes adapted clamping jaws : de en
  • FR873063A - Device intended to correctly adjust the position of the phase between two shafts rotating synchronously : en fr
  • US2288079A - Motion picture apparatus : en
  • US2288479A - Carbonation process for purifying sugar juice : en
  • DE722006C - Arrangement to reduce the influence of mains voltage fluctuations on the voltage supplied by a rectifier and at the same time to achieve a certain characteristic that deviates from the natural voltage current characteristic of the rectifier arrangement : de en
  • GB546245A - Power lift devices for tractor attached agricultural implements : en
  • DE722118C - Furnace for space heating : de en
  • DE722170C - Electric clutch : de en
  • DK59920C - Method and apparatus for debarking tree trunks, in particular deciduous tree trunks. : da en
  • CH222124A - Process for the production of 4,5-cholestenon-3-one. : de en
  • US2288176A - Recovery of readily volatile bases : en
  • US2288237A - Process for concentrating phosphate ores : en
  • DE722124C - Air-compressing internal combustion engine with self-ignition : de en
  • US2288387A - Apparatus for straightening woven material : en
  • GB546160A - Phonetic typewriting machines : en
  • GB546168A - Improvements in frequency stabilising circuits for frequency modulation systems : en
  • DE722091C - Trough chain conveyor as a feeding device for pulverized fuel furnaces with injection mills : de en
  • DE722182C - Lubricating oil cleaner for bearings, gears, etc. Like. With circulating lubrication and separation of the abraded iron parts by magnetic action : de en
  • US2287845A - Thermionic vacuum tube and circuits : en
  • US2287864A - Beta oxy naphthoic acid and process for preparing the same : en
  • US2288086A - Apparatus for forming axle housings : en
  • US2288478A - Phthalocyanine sulphonic acid chloride : en
  • US2288534A - Indicating instrument : en
  • US2287882A - Punch : en
  • FR873144A - Machine for bending and welding, by ordinary or autogenous welding, box bodies : en fr
  • CH221967A - Process for the optical shape inspection of production parts. : de en
  • CH222137A - Process for the preparation of a 1,1'-dioxyazo dye. : de en
  • US2287836A - Parasiticide : en
  • US2288134A - Switch : en
  • US2288205A - Display container : en
  • FR873126A - Method of modulating an ultra-short wave transmitter : en fr
  • US2288190A - Method of making sponge rubber : en
  • US2288567A - Welding control : en
  • FR873284A - Wire electrical resistance : en fr
  • US2288400A - Safety device for motion picture projectors : en
  • GB546191A - Improvements in spark plug insulators : en
  • FR873195A - Compound pad : en fr
  • GB546150A - Improvements in terminal connections for electric heating elements of the sheathed wire type : en
  • GB546117A - Electrically driven hand tools : en
  • DE722236C - Method and device for drying gravure paper webs : de en
  • GB546271A - Improvements in or relating to route or destination indicators : en
  • US2288406A - Positioning means for electric switches : en
  • US2288535A - Seat for automobiles : en
  • USD132899S - Design fos, a finger king : en
  • US2287847A - Oxygen-evolving substances : en
  • US2288476A - Size emulsion and method of preparing the same : en
  • US2287838A - Method of manufacturing confection and product : en
  • US2288162A - Electric shaver : en
  • US2288395A - Cracking with water soluble catalyst : en
  • US2288111A - Washing machine : en
  • US2288189A - Loose-leaf binder : en
  • DE722156C - Ring plate valve : de en
  • DE722040C - Steam generation system heated by engine exhaust, especially for ships powered by generator gas : de en
  • USD132882S - Design fob a refrigerator : en
  • BE445437A - Condensation products and process for preparing these products : en fr
  • CA405728A - Combination garment : en fr
  • CH221973A - Strain gauge. : de en
  • US2287789A - Dispensing device : en
  • US2288038A - Heat treating apparatus : en
  • US2288277A - Pressing device : en
  • FR873299A - Operating method and device of internal combustion engine : en fr
  • US2287958A - Heat exchange apparatus : en
  • US2288260A - Window blind : en
  • AU183241A - Internal combustion rotary motor : en
  • AU115371B2 - Improvements in or connected withthe mechanical brake systems of winding engines, haulages andother rotating machines : en
  • CH221966A - Height markers, in particular for metalworking. : de en
  • CH222131A - Process for the preparation of a disazo dye. : de en
  • US2287782A - Assist cord assembly : en
  • GB546269A - Improved method of recovering non-volatile solutes in electro-plating operations : en
  • US2287948A - Indium plating : en
  • GB546224A - Improvements in or relating to submersible pumps : en
  • PL30623B1 - : en pl
  • CH222168A - Arrangement for converting devices working as rectifiers or inverters. : de en
  • FR873066A - Improvements to guidance systems by the intersection of two partially overlapping radiation patterns : en fr
  • US2287857A - Connector : en
  • US2288157A - Dry electrolytic capacitor and spacing means therefor : en
  • US2288187A - Method of forming indicia on counter wheels : en
  • US2288250A - Luminous vapor lamp : en
  • FR873232A - Product to facilitate metalworking and application of this product : en fr
  • PL30680B1 - : en pl
  • DK59915C - Electrical Remote Signaling System. : da en
  • FR873282A - Motion picture reel : en fr
  • FR873156A - Lexivial products : en fr
  • DE722212C - Switching device for the purposes of electricity billing for small customers, which automatically switches the electricity to a power consumption meter when a specified current is exceeded : de en
  • DE722039C - Braking device for vehicles : de en
  • GB546154A - Improved pricker for cleaning the nipples of vapour burners and the like : en
  • US2288262A - Manufacture of motor fuel : en
  • CA405776A - Camera shutter trigger lock : en fr
  • CH222070A - Device for fixing a dental straightening arch. : en fr
  • CH222142A - Process for the production of a new azo dye. : de en
  • US2288553A - Undergarment : en
  • CH221925A - Process for the preparation of a pigment dye. : de en
  • CH222029A - Silencing device. : de en
  • US2288437A - Air charger for storage tanks : en
  • US2288499A - Electric lamp : en
  • US2288550A - Container : en
  • CH221972A - Circuit for regulating the ratio of two quantities with an adjustable ratio value. : de en
  • CH222161A - Method for gluing plywood panels, cover veneers, etc. using casein glue. : de en
  • AU185541A - Improvements in electron discharge devices for ultrahigh frequency : en
  • CH222104A - Device for locking a bicycle. : de en
  • CA405724A - Welding electrode tongs : en fr
  • CA405787A - Organic material processing : en fr
  • CA405808A - Ore flotation method : en fr
  • US2288330A - Purification of petroleum contaminated waters : en
  • US2287780A - Long draft apron : en
  • US2287805A - Rifle rack : en
  • CH221893A - Transportable shower device. : en fr
  • US2288173A - Control for internal combustion engines : en
  • US2288058A - Machine for cutting gears : en
  • CH221933A - Process for the production of a copolymer from a vinyl sulfamide. : de en
  • CH222119A - Process for the production of a bituminous road surface. : de en
  • AU325141A - Improved method of manufacturing plate-shaped ceramic objects : en
  • CA405821A - Sound reproducer volume compression device : en fr
  • CH221949A - Device for drying paper or fabric webs or sheets printed with color. : de en
  • AU115351B2 - Improvements in or relating to combined wire support and corrosion inhibitor : en
  • CH221864A - Clay pipe for dehumidifying walls. : de en
  • CH222133A - Process for the preparation of a 1,1'-dioxyazo dye. : de en
  • DE722063C - Pressure gauge connection for a pressure gauge assembled with a thermometer : de en
  • US2287979A - Building brick or block : en
  • CH222116A - Machine system for multi-screw ships. : de en
  • US2288057A - Transmission mechanism : en
  • US2288381A - Glass feeding device : en
  • CH221950A - Longitudinal folding device on rotary machines with vertically operating folding blades. : de en
  • CA405861A - Method of and apparatus for filtering gas : en fr
  • CH222114A - Device used to move a vehicle. : en fr
  • CA405858A - Drying oil : en fr
  • DE722115C - Process for lining barrel liners with bearing metals : de en
  • US2288390A - Electrical connector : en
  • GB546184A - Multiple course radio beacon : en
  • FR873070A - Magnetron system : en fr
  • FR873085A - New automatic gas burner : en fr
  • FR873185A - Process for recovering extractants : en fr
  • FR873289A - Device for removing sludge in circular clarification tanks : en fr
  • CH222046A - Tap changer on tap transformers. : de en
  • CH221874A - Process for compensating for the calorific inertia of a so-called room thermostat and device for implementing this process. : en fr
  • GB546127A - Improvements in or relating to air-hardenable coating compositions : en
  • US2288311A - Heat insulating material : en
  • US2288321A - Moldable composition and molded article and method of making the same : en
  • US2288078A - Electrical distribution system : en
  • US2288096A - Television film projector : en
  • US2288122A - Metallic composition for electrical contacts and the like : en
  • US2288272A - Converter furnace : en
  • US2288445A - Stock marker : en
  • AU296441A - Improvements in or relating to apparatus for dividing or desurfacing metal by use of an oxidising jet : en
  • PL30629B1 - : en pl
  • US2288570A - Signboard : en
  • CH221855A - Towing device for two or more wheeled vehicles, in particular agricultural machines and implements. : de en
  • BE445525A - : en fr
  • AU115360B2 - Improved method of manufacturing plate-shaped ceramic objects : en
  • BE445767A - : en
  • CA405751A - Hollow propeller : en fr
  • FR873192A - Process for the preparation of sulfonic acids from arylamides of beta-ketonic acids : en fr
  • GB546192A - Improvements in or relating to electric fixtures : en
  • US2287914A - Brake lining drilling support : en
  • DK59928C - Machine to remove the applied Glaze from the Edges of Tiles before firing. : da en
  • FR873293A - Manufacturing process of macromolecular substances : en fr
  • CA405772A - Camera shutter : en fr
  • BE445733A - : en
  • CH222002A - Work spindle bearings for machine tools, in particular lathes, turret banks and automatic lathes. : de en
  • FR873165A - Arrangement for selective reception of high frequency signals : en fr
  • FR873173A - Method and apparatus for coating surfaces with films and articles thus obtained : en fr
  • US2288548A - Window construction : en
  • CA405797A - Resilient tire : en fr
  • AU115359B2 - Improved method of applying a silver coating : en
  • CA405777A - Photographic film magazine : en fr
  • FR873078A - Method of mounting rotating elements, in particular rotary pistons or the like of rotary piston machines : en fr
  • GB546186A - Improvements in or relating to classifiers or settling tanks : en
  • GB546247A - Improvements in or relating to pipe jointing devices : en
  • PL30654B1 - Józef Bossowski, Tarnów ^ £ ^ / ^ Nozzle for dentures : en pl
  • US2288119A - Draw rolling machine : en
  • US2288487A - Electric communication system : en
  • FR873134A - Process for diffusing silicon in iron and steel and in their alloys : en fr
  • GB546188A - Improvements relating to fuel feed systems for motor road vehicles : en
  • US2287842A - Valve : en
  • CA405780A - Reversible elevator system : en fr
  • FR873290A - Improvements to light alloys based on aluminum, magnesium and zinc, with a view to increasing their ability to undergo machining : en fr
  • FR873202A - High frequency amplifier assembly : en fr
  • GB546200A - Thermionic amplifiers employing negative feedback : en
  • CA405756A - Lightning protector : en fr
  • FR873084A - Angled and floating dipper for angling : en fr
  • US2288347A - Fuel feed system : en
  • DE722073C - Chute motor for compressed air operation : de en
  • DE722098C - Process for the preparation of dihydrofollicle hormones, their derivatives and lower hydrogen analogs : de en
  • DE722200C - Film tour for two different formats : de en
  • DE722229C - Device for covering windrows : de en
  • PL30667B1 - : en pl
  • US2288422A - Mixed ureas : en
  • US2288126A - Recovery of pure aromatics : en
  • USPP529P - Peach tree : en
  • US2287923A - Suction cleaner : en
  • US2288150A - Wristband grip for golf clubs : en
  • US2287792A - Apparatus for controlling the feeding of film : en
  • US2288328A - Pneumatic tire : en
  • US2288446A - Hair curler : en
  • GB546170A - Improvements in the manufacture of threaded machine parts : en
  • DE716986C - Method for obtaining a vanadium-rich slag : de en
  • CH221883A - Mortise lock for room doors. : de en
  • FR873057A - Device allowing the variation of the volume generated by a piston machine, by the variation of the stroke thereof : en fr
  • DK59929C - Procedure for Increasing the Adhesion of Bituminous Coatings. : da en
  • FR873068A - Improvements to thermostats incorporating a liquid contact thermometer : en fr
  • DE722054C - Brake field push-pull circuit for receiving electrical oscillations : de en
  • US2288251A - Automatic toll switching telephone system : en
  • FR873240A - Method and device for introducing fuel into explosion chambers, in particular for explosion turbines : en fr
  • FR873145A - Device for straightening and guiding the bodies of the boxes on their path from the bending mandrel to the welding station : en fr
  • FR873152A - Directional antenna comprising several dipoles in series of lambda / 2 length fed in phase matching : en fr
  • FR873259A - Transportable beams in bricks or reinforced hollow agglomerates for floors or walls : en fr
  • GB546142A - Improvements in or relating to hoisting gear and the like : en
  • US2287970A - Work-positioning means for shoe machines : en
  • US2288208A - Means for controlling the supply of gas to burners : en
  • DE722090C - Process for cooling the anodes of discharge vessels : de en
  • GB546198A - Improved means for holding down the edges of floor, stair and like coverings : en
  • GB546229A - Improvements in electric hand lamps and the like : en
  • US2288489A - Self-feeder for livestock : en
  • DE722177C - Method and device for testing the twist of screw-shaped grooves in bores : de en
  • AU212641A - Color selection display device : en
  • DE722089C - Circuit for number current surge receivers in automatic or semi-automatic telecommunications, especially telephone systems : de en
  • CH222090A - Matched transmission device for multi-phase high frequency oscillations. : de en
  • ES147862A1 - Improvements in the dressing of the metallic frame of the vehicles. : en es
  • CH221860A - Mobile sprayer for pest control with adjustable track width. : de en
  • PL30626B3 - : en pl
  • FR873087A - Soft wooden shoe sole : en fr
  • US2288398A - Current interrupter : en
  • GB546194A - Improvements in or relating to aim-testing devices for firearms such as rifles : en
  • CH222098A - Transmission mechanism for vehicles comprising an electric motor associated with a heat engine. : en fr
  • CH222107A - Device for releasably attaching a bag to bicycles. : de en
  • CH221912A - Belt drive device for a machine for lining bands with zippers. : en fr
  • CH222037A - Device for heat transfer between two flowing heat carriers. : de en
  • FR873176A - Equipment for intestinal baths : en fr
  • GB546197A - Improvements in or relating to variable pitch propeller control : en
  • US2287820A - Convergent rays safety lens : en
  • US2288209A - Suction head : en
  • US2288402A - Television transmitting tube : en
  • CH222060A - Electrical system for conversion purposes. : de en
  • PL30625B1 - : en pl
  • CH222111A - Device for increasing the driving stroke of a cycle pedal. : en fr
  • US2288443A - Holding device : en
  • US2288551A - Clothes hanger : en
  • US2288120A - Iron-cored coil : en
  • US2288257A - Means for phasing distributor brushes in printing telegraphs : en
  • US2288312A - Spray tank : en
  • AU115383B2 - A method of and means for use in preparing surgical plaster bandages : en
  • CA405859A - Luminous signal : en fr
  • US2288214A - Radio system : en
  • US2288456A - Apparatus for preparing pads for shoes : en
  • CA405771A - Dye production : en fr
  • CH222112A - Hydraulic vibration damper. : de en
  • US2288373A - Electrical conductor with improved hydrocarbon insulator : en
  • CA405827A - Metal organic compound stabilization : en fr
  • CH221909A - Textile spool made from an artificial mass, in particular for automatic weaving machines. : de en
  • CA405843A - Brake control mechanism : en fr
  • DE722153C - Optical sound recording device with increasing frequency response : de en
  • USD132940S - Lapel button or similar article : en
  • DE717907C - Conversion device working as rectifier or inverter : de en
  • CH221989A - Process for the production of sound and picture-sound films containing traces of silver and dye. : de en
  • AU115364B2 - Improved circuit for adjusting the disposition ofthe image of cathode-ray tube : en
  • US2287971A - Ice tray : en
  • US2288561A - Thermohydrometer and calculating device therefor : en
  • CH221927A - Process for the preparation of a primary disazo dye. : de en
  • CH222178A - Process for the preparation of a p-aminobenzenesulfonacylamide. : de en
  • US2287876A - Follow-tjp mechanism : en
  • US2288344A - Process for production of ketones : en
  • CA405769A - Electric transformer : en fr
  • FR873258A - Vibration process and machine for the production of agglomerates : en fr
  • US2288118A - Method of preparing soda crackers and composition therefor : en
  • US2288227A - Hair drier : en
  • US2288521A - Hollow glass block : en
  • CH221962A - Device on machine guns to attach the barrel. : de en
  • USD132920S - Design for a mechanical pencil : en
  • US2288432A - Textile finishing : en
  • US2288219A - Wool dyestuffs of the anthraquinone series : en
  • AU115355B2 - An improved gas filter : en
  • AU179741A - Improvements in or connected withthe mechanical brake systems of winding engines, haulages andother rotating machines : en
  • CH221901A - Liquid dispenser-doser. : en fr
  • US2287908A - Internal combustion engine : en
  • US2288276A - Capstan or like hauling means : en
  • US2288210A - Core taking projectile : en
  • US2288392A - Condensation product of aryl amine and long chain aliphatic compound : en
  • US2288410A - Stabilization of peroxide : en
  • US2288468A - Smallware loom : en
  • US2288483A - Method and apparatus for heating metal pipe or the like : en
  • AU115385B2 - Internal combustion rotary motor : en
  • CH221862A - Artificial bait intended for spin fishing. : de en
  • CH222132A - Process for the preparation of a disazo dye. : de en
  • US2288515A - Ignition system : en
  • CA405846A - Pipe coupling : en fr
  • USD132915S - Design for a sprayer pump head : en
  • CH221954A - Drawing-board. : en fr
  • AU274940A - A method and means of controlling the entry of explosion mixtures toan internal combustion engine : en
  • CA405743A - Cosmetic holder : en fr
  • AU115382B2 - Color selection display device : en
  • US2288055A - Riveting machine : en
  • US2288543A - Drilling apparatus : en
  • US2288125A - Conveyer : en
  • US2288084A - Signaling apparatus : en
  • US2288396A - Mill box and the like : en
  • DE722055C - Procedure for tension-free installation of the foot insulator for antenna masts : de en
  • FR873077A - Device comprising two discharge paths connected in parallel but in opposite directions, and means for determining the ignition point at will : en fr
  • US2288578A - Turning machine : en
  • CH222143A - Process for the production of a new azo dye. : de en
  • US2288504A - Lever controlled trolling plate for outboard motors : en
  • CA405774A - Camera magazine arrangement : en fr
  • US2288540A - Window stay : en
  • DK59918C - Device for Series or Block Crown Clamps for Electrical Wiring Assembly. : da en
  • GR9913B - PERFECTIONS IN THE METHODS AND DEVICE OF CONVERSION OF RESIN PRODUCTS IN OILS. : el en
  • FR873103A - Improvements to manufacturing processes for cleaning or laundry products based on fat and in pasty form : en fr
  • DE719207C - Shut-off device for spray devices : de en
  • DK59911C - Clothing press. : da en
  • GB546165A - Improvements in and relating to electric lamp bases and sockets : en
  • DE722157C - Sheeter with rotating knife : de en
  • US2287868A - Manufacture of storage batteries : en
  • FR873129A - Device for wrapping and closing flat objects, such as correspondence folds : en fr
  • GB546223A - Improvements in or relating to submersible pumps : en
  • GB546268A - Heat-exchange apparatus for cooling air and gases and for removing oil and water in suspension : en
  • FR873120A - Ammonia dissociation process : en fr
  • CA405742A - Abdominal truss : en fr
  • AU224641A - Combined toggle and hydraulic press : en
  • CH222126A - Process for the preparation of a green chromating dye. : de en
  • US2288185A - Sand point : en
  • FR873275A - Insulating : en fr
  • GB546146A - Improvements relating to fastening devices : en
  • CH222006A - Process for the production of malleable castings, which in addition to high tensile strength values must have particularly high elongation values. : de en
  • GB546119A - An improvement in or relating to carbon-holders for electric arc lamps : en
  • GB546244A - Compressor unloading valve mechanism : en
  • FR873219A - Mixed hydromechanical transmission device : en fr
  • US2287966A - Process for dewaxing mineral oils : en
  • US2288142A - Well pump : en
  • GB546139A - Improvements in or relating to tour keys for watchmen : en
  • DE722196C - Relays, in particular for protecting electrical systems : de en
  • CH222091A - Generator for generating ultrashort electrical oscillations. : de en
  • DE722086C - Swiveling bobbin holder for cross bobbins : de en
  • GB546179A - Improvements in and relating to processes for the coating of metals : en
  • GB546230A - Improvements relating to cardboard boxes : en
  • CH222173A - Process for the preparation of a new ester. : de en
  • DE722203C - Waistband fastening : de en
  • GB546158A - Improvements in or relating to the manufacture of amino-cyclic sulphonamides : en
  • GB546225A - Method of making a retractile electric conductor cord : en
  • GB546232A - Improvements in flotation reagents : en
  • DE722137C - Double-acting control device for aircraft parts, especially flaps on wings : de en
  • GB546148A - Improvements in or relating to the extraction of components from solutions containing the same : en
  • DE722178C - Driving device for friction wheel lighters : de en
  • US2288147A - Safety paper : en
  • GB546210A - Improvements in vehicle and aircraft control columns : en
  • GB546235A - Improvements in or relating to the manufacture of balloon barrage apparatus : en
  • GB546218A - Improvements in settee beds and the like : en
  • FR873065A - Electric discharge tube : en fr
  • DE722074C - Potting sleeve for rope thimbles : de en
  • CA405753A - Energy dissipating shock absorbing unit : en fr
  • US2288426A - Filter material : en
  • US2288196A - Radio beacon system : en
  • PL30619B1 - : en pl
  • US2288197A - Acrylic acid amides : en
  • US2287956A - Sausage cooker : en
  • US2288580A - Production of unsaturated compounds : en
  • FR873256A - Device allowing the adaptation of a body of any shape on a frame : en fr
  • US2288110A - Earth working implement : en
  • US2287841A - Fluid transfer apparatus : en
  • PL30661B1 - Sarastro-Industrie Adolf Kinzinger, Pforzheim and Hans Reusch, Pforzheim Mechanical pencil : en pl
  • US2288018A - Internal combustion engine : en
  • PL30659B1 - : en pl
  • US2288156A - Hair dressing instrument : en
  • US2288088A - Tying machine : en
  • FR873154A - Process for the hydrolytic decomposition of solutions containing titanium : en fr
  • NL52783C - : en
  • US2288364A - High frequency electric valve generator : en
  • FR873263A - Method of constructing buildings, in particular wooden barracks : en fr
  • GB546222A - Improvements in or relating to submersible pumps : en
  • DE722189C - Pressing device for reshaping paste-like masses in strand form : de en
  • CA405857A - Carrier frequency communication exchange system : en fr
  • US2287987A - Drafting apparatus : en
  • FR873298A - Domestic stove : en fr
  • GB546202A - Subaqueous sound transmission system : en
  • DK59919C - Hot water boiler. : da en
  • GB546172A - Improvements in cooling devices for engines : en
  • GB546206A - Improvements in or relating to elevators : en
  • IE16347L - Stilbene diamidines : en
  • USD132921S - Design for a cigarette holder : en
  • US2287821A - Orthopedic combined wrist joint and distal forearm support : en
  • US2288296A - Doll : en
  • FR873196A - Mouthpiece for massagers operating with a pulsating jet of liquid : en fr
  • US2288204A - Landing gear warning switch cutout : en
  • US2288163A - Spring assembly for saddles : en
  • US2288493A - Illumination means for handbags and the like : en
  • US2287858A - Apparatus for manufacturing concrete pipes : en
  • DE722130C - Socket joint : de en
  • FR873161A - Process for improving the cutting of cellulose wool cutting machines : en fr
  • GB546190A - Improvements in measuring instruments : en
  • USD132890S - Design for a wallboard finishing knife : en
  • US2288403A - Cement block molding apparatus : en
  • DE722056C - Arrangement for regulating a direct current motor : de en
  • FR873180A - Improvements to transit time devices with transverse control : en fr
  • DE722107C - Process for the production of Kuepen dyes : de en
  • CA405854A - Direction finding system by radio : en fr
  • CA405811A - Electrical translating instrument : en fr
  • US2288095A - Method and apparatus for producing bound batts : en
  • AU115352B2 - Improved composite reinforced concrete floor construction : en
  • US2287804A - Device for recovery of minerals : en
  • US2288025A - Automatic frequency control system : en
  • US2288054A - Method of making rubber flooring : en
  • US2288280A - Synchroscope : en
  • US2288035A - Heat treating apparatus : en
  • USD132917S - Cliff drd brooks stevens : en
  • US2288019A - Time controlled radio tuning system : en
  • USD132881S - Design fob, a refrigerator : en
  • US2288507A - Glass bending frame : en
  • USD132911S - Design fob a heating radiator : en
  • PL30669B1 - : en pl
  • US2288318A - Electroplating process : en
  • DE722010C - Rotary piston machine with sliding jaws provided in the rotating runner : de en
  • CH222117A - Installation for the remote pneumatic control of pipelines in an aircraft. : en fr
  • US2287929A - Motor-generator set and generator : en
  • USD132922S - Design for a decorative candle : en
  • FR873072A - Improvements to tuning devices for radio-electric devices : en fr
  • CA405775A - Camera film wind : en fr
  • CH222052A - Safety screw plug of the one-piece fuse system. : de en
  • US2288077A - Spring contact device for window sashes : en
  • FR873150A - Device for increasing steering accuracy in parabolic mirror devices : en fr
  • PL30677B1 - : en pl
  • US2288014A - Device for the automatic detection of genuine coins : en
  • US2288046A - Trailer brake control : en
  • US2287824A - Fuel delivery station : en
  • FR873201A - Green chromatable dyes and their manufacturing process : en fr
  • GB546138A - Improvements in or relating to attendance-checking systems for watchmen : en
  • GB546212A - Improvements in or relating to frequency multipliers : en
  • CH221902A - Method and device for the production of crimped man-made staple fibers. : de en
  • US2287772A - Hot top blocking : en
  • US2288098A - Control device for controllable apparatus : en
  • US2287917A - Manufacture of catalytic material : en
  • US2288181A - Method of manufacturing ether alcohols : en
  • CA405823A - Covered tubing : en fr
  • US2288444A - Machine for treating thin rubber articles : en
  • CH221983A - Drive device for the revolution counter of calculators and similar office machines. : de en
  • US2288372A - Insert in rotary furnaces : en
  • US2288586A - Yellow fog inhibitor : en
  • US2287939A - Respirator : en
  • USD132930S - Hard-surfaced composition tile floor covering : en
  • US2288007A - Corrosion resistant film on zinc : en
  • US2288319A - Pour inhibitor : en
  • US2288505A - Manometer : en
  • DE722142C - Additional front wheel drive for bicycles and similar vehicles : de en
  • FR873235A - Improvements to lamps with high power anode : en fr
  • GB546215A - Improvements in or relating to brakes : en
  • CH221856A - Planter, especially for potatoes. : de en
  • FR873113A - Gas mask with sealing frame : en fr
  • GB546187A - Improvements in and relating to power transmissions : en
  • GB546205A - Improvements in or relating to electrical impedance networks : en
  • DE722102C - Line protection device : de en
  • US2288213A - Carpenter's framing tool : en
  • FR873186A - Process for the production of leuco esters from tank dyes : en fr
  • US2288571A - Conveyer : en
  • DE722041C - Tube-like device for separating liquids from gases or gas mixtures by centrifugal force : de en
  • DE722059C - Spiral housing for flow machines : de en
  • CA405839A - Laundry press : en fr
  • FR873198A - Process for making very adherent layers and compacting in the surface treatment with silicon : en fr
  • AU115374B2 - Wrap stripe device for circular knitting machine : en
  • CH222083A - By recording media to be scanned, in particular by punch cards controlled tabulating machine. : de en
  • CH222089A - Transposition receiver for receiving frequency-modulated high-frequency oscillations. : de en
  • US2288430A - Scanning apparatus : en
  • BE445720A - : en
  • CA405796A - Fire extinguishing method and apparatus : en fr
  • US2287776A - Method of sealing moisture in sheet fiber material : en
  • US2288326A - Internal combustion engine : en
  • US2287991A - Alternating-current electric power system : en
  • US2288053A - Scale shield : en
  • DE722202C - Device at drop-in points to limit the size of mail items : de en
  • FR873228A - Crossing of trolley wires : en fr
  • CA405735A - Non-skid device : en fr
  • CA405856A - Differential condenser circuit : en fr
  • CH222015A - Engraving and copying machine. : de en
  • CH222140A - Process for the production of a new azo dye. : de en
  • US2287953A - Electrical apparatus : en
  • CH222171A - Detergents, cleaning agents, wetting agents and foaming agents. : de en
  • US2288131A - Process of refining and treating petroleum hydrocarbons : en
  • US2288585A - Wood finishing apparatus : en
  • US2288010A - Fish cutting machine : en
  • CH221935A - Agents for preventing the aging of rubber articles. : de en
  • DE721892C - Process for the production of organic sulfur compounds : de en
  • CA405719A - Patient handling device : en fr
  • CH222149A - Process for the preparation of a triarylmethane dye. : de en
  • US2288496A - Power hay stacker : en
  • USD132896S - Design for a badge for motor vehicles : en
  • US2288299A - Combined comb and thinning razor : en
  • US2288034A - Electric transmission system : en
  • FR873079A - Winding device, in particular for covering cables with tapes : en fr
  • GB546118A - Improvements relating to the heating or cooling of canned foodstuffs ready for use : en
  • CH222069A - Casting device that works with compressed air for use by dentists. : de en
  • US2288140A - Boiler : en
  • US2288223A - Boiler control apparatus : en
  • AU115358B2 - Burners and hotplates for gas fired cooking apparatus : en
  • CH222172A - Process for the preparation of a new ester. : de en
  • CA405829A - Pneumatic remote control apparatus : en fr
  • CH222043A - Electrical signaling device. : en fr
  • CA405786A - Vibratory motor for dry shavers : en fr
  • CA405814A - Steel or alloy tube manufacture : en fr
  • FR873210A - Gluing press for curved parts, in particular for parts of aircraft or the like : en fr
  • CH222122A - Process for the preparation of a ketone of the cyclopentanopolyhydrophenanthrene series. : de en
  • US2287803A - Direct conversion of alcohols to acids : en
  • CH221961A - Cartridge case ejection device on automatic weapons. : de en
  • CH221978A - Electrical measuring device for determining the power and the power factor for single and multi-phase systems. : de en
  • CH222177A - Process for preparing a cyclic sulfonic acid amide compound. : de en
  • CH222152A - Process for the preparation of a new dye of the anthraquinone series. : de en
  • FR873141A - Assembly for switching on and off the cathode ray for the observation with the oscillograph of fugitive phenomena : en fr
  • FR873177A - Connection of two elements animated by a rotational movement, such as, for example, a propeller blade with a mount of its foot : en fr
  • CH221956A - Chromatic harmonica. : de en
  • US2288314A - Method of improving yeast : en
  • US2288337A - Rotary brush section : en
  • US2288384A - Temperature responsive control device : en
  • US2287936A - Relief valve : en
  • US2287819A - Device for recording drilling operations : en
  • US2288060A - Solid water-in-rosin paper size : en
  • DE722186C - Lock for small-caliber weapons : de en
  • FR873111A - Improvements to hub boxes for animal drawn vehicles : en fr
  • US2287877A - Rubber shoe : en
  • US2288527A - Wallpapering : en
  • GB546242A - Improvements in alternating current electric measuring and like instruments : en
  • US2288021A - Train heating system : en
  • US2288234A - Metal table top : en
  • US2288275A - Modulating system : en
  • US2288108A - Electrical conductor support : en
  • BE445451A - : en fr
  • CH222138A - Process for the production of a new chromium-containing azo dye. : de en
  • CH222078A - Process for the preparation of a condensation product. : de en
  • CH221941A - Method and device for the control of multi-motor drives. : de en
  • US2288294A - Ultra high frequency oscillator : en
  • DE722215C - Arrangement for generating a measuring or relay effect as a function of the deviations of a frequency from a nominal value : de en
  • US2287854A - Coal washery : en
  • US2288028A - Furnace : en
  • CA405770A - High frequency electronic apparatus : en fr
  • BE445588A - Process for improving the magnetic properties of pure iron : en fr
  • AU588742A - Electron discharge device : en
  • US2288459A - High-voltage power transmission system : en
  • CA405833A - Power transmitting mechanism : en fr
  • US2288484A - Regeneration of catalysts by combustion : en
  • DE722234C - Conveyors, especially for sloping construction : de en
  • GB546240A - Improvements in or relating to the treatment of dust-laden air : en
  • PL30642B1 - : en pl
  • US2287851A - Automatic speed control for continuous rolling mills : en
  • US2288195A - Rubber composition having high flex-resistance and low hysteresis : en
  • CA405746A - Stove igniter : en fr
  • CH221963A - Detonator. : de en
  • US2287775A - Release valve : en
  • US2287978A - Striker plate : en
  • US2287783A - Assist cord assembly : en
  • US2288452A - Electric switch : en
  • SE104864C1 - : en
  • PL30647B1 - : en pl
  • US2287938A - Gear shifting apparatus : en
  • US2287947A - Weatherproof insulated electric wire : en
  • US2288121A - Protector for eave troughs : en
  • US2288117A - Fuse construction : en
  • US2288136A - Die set : en
  • US2288133A - Dynamic lowering crane controller : en
  • US2288180A - Apparatus for measuring ph : en
  • US2287846A - Derivatives of i-cholesterol : en
  • US2288056A - Container construction : en
  • GB546113A - Improvements in or relating to valves : en
  • US2287774A - Rubberlike materials : en
  • US2288235A - Adjustable band resistor : en
  • CH222123A - Process for the preparation of a ketone of the cyclopentanopolyhydrophenanthrene series. : de en
  • CA405851A - Rubber-coated conductor : en fr
  • CH222088A - Circuit for the transmission of ultra-high frequency vibrations, which contains a Lecher wire system with variable tuning. : de en
  • US2288365A - Wall form support : en
  • US2288552A - Method of surface treating objects of cast magnesium base alloys : en
  • CH221884A - Window closing device that triggers automatically. : de en
  • CH222011A - Tenon polishing machine. : de en
  • DE722144C - Process for the production of non-caking powdered ammonium nitrate explosives : de en
  • US2288288A - Lubricating oil : en
  • CA405755A - Dairy product processing : en fr
  • US2288327A - Apparatus for forming and filling capsules : en
  • US2288107A - Printing machine : en
  • DE722169C - Brush bridge adjustment device for three-phase commutator motors controlled by centrifugal energy : de en
  • US2287840A - Relief valve : en
  • US2287911A - Suction cleaner : en
  • US2288151A - Sign : en
  • CA405807A - Crystallizing apparatus : en fr
  • CH222033A - Control device for prime movers. : de en
  • CH222121A - Process for the preparation of a ketone of the cyclopentanopolyhydrophenanthrene series. : de en
  • US2287902A - Refrigeration : en
  • USD132901S - Design for a game boakd : en
  • CH222139A - Process for the production of a new azo dye. : de en
  • US2287837A - Method and apparatus for applying coating materials : en
  • USPP530P - Rose plant : en
  • DE721803C - Pump with a reciprocating piston designed as a rotary slide valve : de en
  • CH221911A - Device on suspenders for fastening the same to trousers. : de en
  • CH222024A - Hydraulic pump. : en fr
  • US2288290A - Sheet clamping means for duplicating machines : en
  • CH222128A - Process for the preparation of a monoazo dye. : de en
  • DE722220C - Spirometer : de en
  • US2288325A - Photographic film carrier : en
  • US2288532A - Filter device : en
  • US2287924A - Suction cleaner : en
  • US2287872A - Printer's blanket : en
  • US2288440A - Mixing apparatus : en
  • US2287815A - Method of making mat of glass fibers : en
  • USD132924S - Design foe an apron : en
  • DE722123C - Two-stroke internal combustion engine : de en
  • FR873135A - Condensation products and their preparation process : en fr
  • CA405741A - Tank heating unit : en fr
  • CH221999A - Arrangement for the compensation of the reactive power consumption, in particular of resistance welding transformers. : de en
  • PL30646B1 - : en pl
  • US2287793A - Control mechanism for linecasting and composing machines : en
  • US2288099A - Continuous metering conveyer for bulk material : en
  • US2287816A - Double signal system : en
  • GB546159A - Improvements in drawing pins or like pin units for insertion in or attachment to a board or other surface : en
  • CH221959A - Firearm. : de en
  • CH221975A - Device for measuring forces. : de en
  • CH221930A - Process for the preparation of a dye of the merocyanine series. : de en
  • US2287885A - Breech block operating means : en
  • US2288526A - Automatic phonograph : en
  • CA405720A - Vending machine : en fr
  • US2288194A - Vulcanization of rubber : en
  • US2288159A - Sacking device : en
  • FR873073A - Pressure pencil with two pliers : en fr
  • CH221940A - Process for retarding the corrosion of ferrous metals. : en fr
  • FR873051A - Process for recovering fibers from rubberized materials which contain these fibers and device for carrying out this process : en fr
  • US2287945A - Welding machine : en
  • US2288264A - Nonchoking magnetic separator : en
  • PL30658B1 - : en pl
  • US2288545A - Drilling apparatus : en
  • US2288425A - Drive spindle : en
  • CH222155A - Process for the preparation of a new dye of the anthraquinone series. : de en
  • US2287962A - Stocking : en
  • US2287976A - Insulator : en
  • US2288064A - Time cycle control mechanism : en
  • AU118681B2 - Electron discharge device : en
  • US2287814A - Scale : en
  • CH222136A - Process for the preparation of a 1,1'-dioxyazo dye. : de en
  • CA405760A - Telephone system : en fr
  • US2288583A - Distributor switch : en
  • CA405738A - Television synchronization system : en fr
  • CH222134A - Process for the preparation of a 1,1'-dioxyazo dye. : de en
  • US2288011A - Teeth separator : en
  • AU115354B2 - An improved concentrated aqueous dispersion of casein for addition to foodstuffs and method of preparing thesame : en
  • AU303841A - Burners and hotplates for gas fired cooking apparatus : en
  • CA405847A - Textile material processing : en fr
  • DE721963C - Rotary switch with fuse : de en
  • AU85641A - Improvements in or relating to knitting machines : en
  • FR873194A - Vulcan transmission : en fr
  • DE722101C - Feedback device for circuit breakers operated remotely by overlay remote control : de en
  • FR873090A - Automatic direction finder : en fr
  • GB546253A - Improved apparatus for trimming the edges of veldtschoen and similar footwear : en
  • FR873114A - Connection contact housed in a shielding cap for spark plugs : en fr
  • DE722163C - Sheet feeder for cylinder printing presses : de en
  • DE722187C - Luminous emergency signal : de en
  • CH222008A - Method and device for the production of synthetic resin with increased elasticity. : de en
  • CH222063A - Multi-phase conversion arrangement for heavy current with mechanically moved contacts. : de en
  • CH222141A - Process for the production of a new azo dye. : de en
  • FR873131A - Process for increasing the endurance of carrier cables and the like subjected to considerable stress : en fr
  • US2287961A - Separately fired superheater arrangement : en
  • AU115384B2 - Improvements in or relating to knitting machines : en
  • CA405793A - Aircraft retractable undercarriage : en fr
  • CA405828A - Abrasive tool : en fr
  • USD132883S - Design for a refrigerator : en
  • AU262841A - An improved concentrated aqueous dispersion of casein for addition to foodstuffs and method of preparing thesame : en
  • CH222003A - Device for testing and processing workpieces. : de en
  • CA405813A - Cut-off applying means : en fr
  • DE722058C - Automatic regulation for ovens with rooms with different temperatures : de en
  • PL30628B1 - Yereinigte Gliihlampen- und Elektrizitats-Aktiengesellschaft, Iljpest 'Discharge lamp from metal bank : en pl
  • CH222012A - Electric dry shaver with electric lighting. : de en
  • CA405816A - Light sensitive diazo compound : en fr
  • US2287940A - Hydrocarbon conversion : en
  • AU115379B2 - Improvements in electron discharge devices for ultrahigh frequency : en
  • US2288536A - Fuel feeding mechanism for liquid fuel burners : en
  • AU267841A - A method of and means for use in preparing surgical plaster bandages : en
  • CA405765A - Grinding machine : en fr
  • AU115381B2 - Improvements in bolt anchors : en
  • US2288377A - Cover plate for electrical outlet boxes : en
  • CA405747A - Driveway signalling device : en fr
  • CH222023A - Turbo compressor. : de en
  • CH221908A - Loom. : de en
  • CH222058A - Converters working with vapor discharge paths with immersion igniters. : de en
  • FR873128A - Self-priming centrifugal pump : en fr
  • FR873300A - Improvements to the supports of lamps used in very short wave devices : en fr
  • US2288537A - Sealing machine : en
  • CH221876A - Radiator. : de en
  • CH221977A - Cathode ray polar tube. : de en
  • BE445599A - Manufacturing process for monohalogenated lactams : en fr
  • CA405798A - Sound-absorbing device : en fr
  • FR873094A - Improvement in speaking machines or phonographs with playback of an endless tape : en fr
  • FR873117A - Azo dyes and their production process : en fr
  • FR873137A - Swath disperser with oblique crankshaft adaptable or towable by tractor : en fr
  • DE722199C - Elastic joint : de en
  • FR873203A - Method for determining the bond strength of the plating in plated tubes : en fr
  • CH222061A - Electrode insertion to vacuum vessel. : de en
  • FR873227A - Trolley wire support for power transmission lines : en fr
  • CH221918A - Process for the production of beer with enrichment of the same with vitamins and other active substances from yeast. : de en
  • CH222157A - Method for producing pores on light metal running surfaces, in particular on aluminum pistons of internal combustion engines. : de en
  • GB546270A - Improvements in and relating to excavating devices for land drainage : en
  • FR873067A - Improvements to direction finders with direct reading oscillographic indicator : en fr
  • GB546174A - Improvements in apparatus for selectively illuminating parts of pictures : en
  • FR873143A - Phthaloylcarbazol series vat dyes and their production process : en fr
  • FR873214A - Coloring matter soluble in organic solvents : en fr
  • FR873296A - Device for preventing the formation of eddy currents in packages of sheets of electrical machines : en fr
  • GB546114A - Saw blade : en
  • FR873138A - Electric switch : en fr
  • GB546262A - Improvements in and relating to refrigerator cabinets : en
  • FR873107A - Gasifier vehicle equipment system : en fr
  • DE722232C - Piston engine operating with a swash plate or a swash plate : de en
  • FR873115A - Refrigeration machine with compressor : en fr
  • GB546147A - Improvements in and relating to typewriters : en
  • US2288092A - Die-cast cylinder block : en
  • DE722161C - Arrangement for regulating the operation of a high-pressure tubular steam generator : de en
  • PL30651B1 - : en pl
  • DE722155C - Combination warehouse : de en
  • DE722201C - Firing stand in a single-spar aircraft wing with a built-in engine : de en
  • FR873089A - : fr
  • US2287867A - Suction cleaner : en
  • GB546135A - Improvements in or relating to snap-action electric switches : en
  • US2287995A - Apparatus and method for condensing liquids : en
  • USD132903S - Biszantz dump body : en
  • US2287831A - Can closing machine : en
  • US2288270A - Circuit breaker : en
  • DE722065C - Hardness checker combined with a measuring microscope : de en
  • FR873206A - Optical compensation by the use of a series of tilting mirrors : en fr
  • FR873213A - Process for the stabilization of aqueous solutions of condensation products of4. 4'-diaminodiphenylsulfones : en fr
  • GB546116A - Improved method of making cemented joints using adhesives requiring heat : en
  • US2288549A - Container : en
  • CH222145A - Process for the production of a new azo dye. : de en
  • DK59917C - Push Button Selector for Electrical Message Devices, Especially Radio Receivers. : da en
  • FR873136A - Arrangement of steering clutches consisting of multiple disc clutches for tracked vehicles : en fr
  • CH221960A - Recoil spring for automatic, mass-locked firearms. : de en
  • US2287781A - Articficial arm and hand : en
  • US2287830A - Method of coating pipe : en
  • US2287866A - Vibration damper : en
  • US2288516A - Inductance : en
  • DE722057C - Heating device for electrical operation : de en
  • FR873142A - Anti-foaming phthalocyanine : en fr
  • US2288066A - Multiple index : en
  • CH221854A - Process and device for maintaining the pressure in oil reservoirs. : de en
  • CH221899A - Cardboard disc used as a cap for milk bottles. : de en
  • DE722141C - Direction indicators, especially for bicycles and motorcycles : de en
  • US2288370A - Purification and reconcentration of spent sulphuric acid : en
  • US2288448A - Manufacture of insoles : en
  • CA405806A - Soy bean debitterizing process : en fr
  • US2288091A - Process for the recovery of nitric oxide from gaseous mixtures : en
  • US2288268A - Electrostatic heating system : en
  • US2287860A - Winding machine : en
  • US2287964A - Antisplitting device : en
  • US2287829A - Liquid metering device : en
  • US2288141A - Cleaning machine : en
  • US2287946A - Antiskinning and weather resisting agent for drying oil compositions : en
  • US2287985A - Laced boot : en
  • US2288170A - Thermal insulating material : en
  • US2288172A - Sound deadening connection : en
  • FR873093A - Calcium sulfide treatment process : en fr
  • FR873277A - Cable clamp for copper-aluminum and aluminum-aluminum conductors : en fr
  • CH222084A - Cloakroom ticket. : de en
  • FR873149A - Heating system for workers' houses, dwellings, apartments and various premises : en fr
  • FR873280A - Material protection device for feed or transport hoppers : en fr
  • FR873140A - A method of improving the magnetic properties of permanent magnet materials capable of hardening : en fr
  • GB546181A - Improvements in apparatus for collecting and feeding groups of articles : en
  • US2287768A - Roller having surface of sponge rubber knobs : en
  • DE722185C - Passenger seat suspension for motorcycles with a swinging rear wheel : de en
  • US2287779A - Deep well pumping mechanism : en
  • US2287980A - Door locking mechanism : en
  • US2288075A - Rock drill : en
  • US2288259A - Connecting device for electrical conductors : en
  • US2288424A - Bakery equipment or the like : en
  • GB546263A - Improvements in or relating to bearings : en
  • GB546112A - Improvements in or relating to telegraph receiving and recording systems : en
  • AU115361B2 - Improvements in fluid motors or gear pumps : en
  • CH222085A - Self-seller for warm sausages. : de en
  • CH222106A - Device for attaching a bicycle lamp to the bicycle frame. : de en
  • US2288199A - Foot protector : en
  • FR872999A - : fr
  • FR873281A - Film reel, artificial material : en fr
  • GB546257A - Improvements in or relating to photographic copying apparatus : en
  • FR873269A - Method and agent for selective weed control : en fr
  • FR873279A - Improvements to the construction of junctions and crossings of railway and tram tracks : en fr
  • FR873069A - Improvements to anode modulation transformers (class b) of transmitters and, in particular, high power transmitters : en fr
  • GB546216A - Improvements in or relating to flourescent screens and methods for the production thereof : en
  • CA405783A - Electrical machine protective system : en fr
  • CA405825A - Typewriter : en fr
  • FR873064A - Safety device for opening oysters : en fr
  • FR873205A - Cathode for electric discharge tube : en fr
  • FR873220A - Spark plugs for internal combustion engines : en fr
  • CA405826A - Laminated cellulosic web manufacture : en fr
  • BE445757A - PROCESS FOR MANUFACTURING REGENERATED LEATHER FROM TANNED OR NON-TANNED LEATHER WASTE : en fr
  • US2288246A - Wheel mounting : en
  • GB546199A - Improvements in or relating to joints in hose for the passage of water or other liquid : en
  • US2288044A - Glass : en
  • FR873091A - Grid winding machine : en fr
  • DE722165C - Device for two-way communication on directional short or ultra-short waves : de en
  • FR873125A - Horse-drawn car or similar : en fr
  • DE722180C - Trawl harness : de en
  • DE722075C - Claw switching device for flow gear : de en
  • DE722131C - Arrangement and method for metallizing objects by means of cathode sputtering : de en
  • DE722183C - The brake valve for the trailer compressed air brake to be actuated by the railcar brake and an air brake group possibly located on the railcar : de en
  • DE722143C - Switching device for electric hand indicators with signal disc : de en
  • GB546129A - Improvements in test strips : en
  • GB546256A - A new and improved composition for the prevention and fire-proofing of wood, timber and other materials : en
  • US2288130A - Upholstery cushion : en
  • US2288345A - Projector or the like : en
  • US2288569A - Protection of economic crops : en
  • FR873060A - Cathode ray tube for writing in polar coordinates with cylindrical or conical deflection electrodes : en fr
  • CA405850A - Tobacco pipe device : en fr
  • US2288366A - Furnace : en
  • US2288554A - Synchronizing system and method : en
  • US2287963A - Spring support for railway trucks : en
  • DE722194C - Device for circular deflection of the electron beam of a Braun tube : de en
  • DE722209C - Chopper of an inverter with control of the excitation coil by the pendulum spring : de en
  • DE722099C - Gas element with gas collecting containers arranged over the electrodes : de en
  • CH222059A - Method of manufacturing a dry rectifier valve. : de en
  • GB546249A - Improvements relating to the production of foam and foam-containing liquids : en
  • US2288074A - Photographic projection apparatus : en
  • US2288231A - Diverting valve float controlled means : en
  • US2288488A - Apparatus for photographing titles on motion picture films : en
  • US2288582A - Shoe clamp : en
  • US2288177A - Floodlight : en
  • US2288547A - Process of working up complex ammoniacal solutions of metal : en
  • US2287993A - Electric discharge apparatus : en
  • US2288411A - Folding chair : en
  • CH221929A - Process for preparing an anthraquinone derivative. : de en
  • FR873071A - Application of iron-chromium-silicon alloys to parts subjected to magnetic forces : en fr
  • US2288524A - Process of : en
  • DE722206C - Track board for displaying the operating status at a train station : de en
  • FR873217A - Junction device for electrical conductors : en fr
  • US2288102A - Radio direction finding apparatus : en
  • DE722105C - Device for controlling electrically heated heating devices, in particular large kitchen devices with resistance heating : de en
  • USD132935S - Design for a sachet potpourri : en
  • US2288167A - Movable scaffold : en
  • GB546167A - Improvements relating to mechanism for feeding cardboard and like blanks to creasing, folding or other treating machinery : en
  • US2287905A - Coating machine : en
  • DE721909C - Standard counter with photoelectric detection of its speed for testing and calibration of electrical counters, the speed of which is determined by recording only whole revolutions : de en
  • DK59916C - Volume control device for Radio Receivers. : da en
  • DE722119C - Pipe coupling for two support pipes pushed into one another : de en
  • CH222020A - Bowden cable. : de en
  • USD132905S - Design for a bedstead : en
  • CH222017A - Band bodies for jewelry or other uses with links lined up on at least one carrier band and forming display surfaces. : de en
  • DE722120C - Projection screen with metallic foils attached to a base : de en
  • US2288002A - Scouring device : en
  • US2288388A - Transparent or translucent shoe heel : en
  • US2287965A - Method and apparatus for the operation of photoelectric cells : en
  • US2287835A - Apparatus for controlling rotation : en
  • US2288340A - Method of making composite tubular structures : en
  • USD132891S - Design fob a tool handle : en
  • US2287771A - Production of powdered alloys : en
  • US2288047A - Ceramic body and a method of making the same : en
  • US2288495A - Wall support : en
  • CA405801A - Inertia element operated device : en fr
  • CA405812A - Window : en fr
  • US2288281A - Process for separating mixtures of chemically related substances : en
  • US2288128A - Etching machine : en
  • CA405794A - Aircraft retractable landing gear : en fr
  • PL30679B1 - A device for introducing the foaming liquid into running water, otherwise under pressure : en pl
  • CA405788A - Watchman's clock : en fr
  • US2287786A - Automatic weather station : en
  • US2288255A - Eyeglass case : en
  • CH221987A - Steel tone machine. : de en
  • US2288302A - Razor : en
  • US2288449A - Converter unit : en
  • US2288027A - Method of and apparatus for initiating desurfacing operations : en
  • US2288266A - Can opener : en
  • DE722093C - Circuit arrangement for nurse call systems with emergency call facility : de en
  • FR873153A - Cleaners : en fr
  • US2287809A - Phonograph record cutting mechanism : en
  • US2287975A - Liquid treatment apparatus : en
  • US2288139A - Junction box for electrical circuits : en
  • CH222039A - Squirrel cage rotor for asynchronous motors with uninsulated winding. : de en
  • CH222014A - Centrifugal machine with at least one centrifugal pump. : de en
  • US2287893A - Sealed box with pouring spout : en
  • US2288334A - Local anesthetic : en
  • BE445742A - : en
  • CH221881A - Cistern. : de en
  • US2287843A - Clamp : en
  • CH221943A - Shaped body and process for its production from fiber-containing vegetables. : de en
  • CH221994A - Box for timepieces, counters, manometers, etc. : en fr
  • DE722113C - Device for the production of centrifugally cast bodies : de en
  • US2288475A - Shoe heel : en
  • US2288192A - Constant pressure clasp connector : en
  • US2288329A - Mounting or joint strip : en
  • USD132876S - Design for a table : en
  • DE721000C - Process for the oxidative degradation of essentially solid carbon-containing substances : de en
  • CH222125A - Process for the preparation of 2-mercapto-benzoxazole-acetic acid-5-arsic acid. : de en
  • CA405757A - Signal device : en fr
  • PL30634B1 - : en pl
  • US2287949A - Vitamin e substitute and process of making it : en
  • US2288289A - Lubricant : en
  • US2288413A - Plasticized article of manufacture : en
  • US2288405A - Recovery of zinc values : en
  • AU370441A - Improvements relating to the control of fluid compressor systems : en
  • US2287999A - Machine for conditioning leather surfaces : en
  • CH221947A - Document cassette. : de en
  • US2287926A - Signal actuated alarm circuit : en
  • CH221937A - Process for the production of practically anhydrous calcium nitrate. : de en
  • CA405749A - Aluminium base alloy thermal treatment : en fr
  • CH222031A - Heating apparatus, in particular for heating internal combustion engines. : de en
  • FR873252A - Improvements to shoes and boots with a wooden or other rigid material : en fr
  • PL30637B1 - : en pl
  • BE445420A - : en fr
  • CH221892A - Music cabinet. : de en
  • US2288439A - Fixture : en
  • US2287880A - Apparatus for operating vibratory motors : en
  • CH222147A - Process for the production of a new azo dye. : de en
  • CH222156A - Process for the preparation of a new dye of the anthraquinone series. : de en
  • FR873095A - Mechanically controlled acetylene gas generator allowing rational use of calcium carbide : en fr
  • CH222053A - Shaft locking, especially for rotary capacitors. : de en
  • DE722111C - Device for ejecting cast hollow bodies : de en
  • CA405758A - Telephone system : en fr
  • US2288016A - Vapor electric device : en
  • US2288114A - Refrigerating apparatus : en
  • US2288522A - Dyestuffs of the dioxazine series and process of preparing them : en
  • DE722110C - Process for disinfecting rooms and objects : de en
  • AU115386B2 - Automatic water feed for gas producers : en
  • CH221990A - Stereophonic sound recording. : de en
  • CH221974A - Method and device for indexing an internal combustion engine. : de en
  • US2287944A - Device for use in handling loose bulk material : en
  • USD132919S - Design for a game board : en
  • PL30648B1 - The method of continuous welding of pipes : en pl
  • US2288003A - Air conditioning apparatus : en
  • DE722081C - Advertising stand for business and exhibition spaces : de en
  • DK59924C - Container of paper or other flexible material and subject to its manufacture. : da en
  • GB546155A - Machine for forming and trimming die castings : en
  • CH222127A - Process for the preparation of a monoazo dye. : de en
  • US2288457A - Poultry box : en
  • US2287784A - Control device : en
  • US2287898A - Stabilization of gasoline and the like : en
  • US2288109A - Material handling apparatus : en
  • US2288565A - Breathing apparatus supply valve : en
  • DE716219C - Coating material resulting in non-flammable coatings : de en
  • US2287959A - Chemical gas generator : en
  • US2288286A - Fastening device : en
  • US2288256A - Transmission through space discharge device : en
  • US2288341A - Blocking layer electrode system : en
  • US2288164A - Shaft seal : en
  • US2287801A - Scouring and abrading appliance : en
  • FR873109A - Device for extracting and replacing accumulator batteries on electric vehicles : en fr
  • GB546140A - Improvements in or relating to sewing machines : en
  • CH221898A - Airtight closure device on vessels, in particular glass vessels, with an inner groove. : de en
  • CH221919A - Device for distilling a liquid. : de en
  • GB546122A - Process for modifying the dyeing and other properties of cellulosic textile materials : en
  • CA405759A - Telephone system : en fr
  • DE722062C - Altimeter : de en
  • FR873246A - Icing speed indicator : en fr
  • DK59926C - Apparatus for Delivering Pressure Fluid, Special Compressed Air. : da en
  • GB546166A - Improvements in magnetic counterpoles for use in electricity meters : en
  • US2288572A - Felting hat bodies : en
  • DK59923C - Welding rod for welding chromium or chromium alloys on metal objects of any kind and method of manufacture. : da en
  • AU236841A - Improvement infrequency-modulation television signal receiver : en
  • CH221895A - Device for making cheese fondues for restaurants and inns. : de en
  • CH222108A - Trailers for bicycles. : de en
  • DK59912C - Procedure for the manufacture of androstenediols, their esters or ethers. : da en
  • US2288216A - Means for recording eye movements : en
  • USD132907S - Design for a table : en
  • FR873139A - Permanent magnet chuck : en fr
  • GB546183A - Improvements relating to full stroke mechanism : en
  • US2288494A - Chain welding : en
  • US2288369A - Apparatus for hair waving : en
  • US2288544A - Rock drilling apparatus : en
  • US2288203A - Electric reciprocating motor : en
  • CH222035A - Cooling system with temperatures that are at least temporarily below freezing point. : de en
  • US2288222A - Coin receptacle : en
  • US2288407A - Pencil pointer : en
  • CH221957A - Ski binding. : de en
  • DE722230C - Greenhouse with a hollow roof rung : de en
  • US2288143A - Smoke detector : en
  • US2288350A - Supporting device : en
  • US2287769A - Brassiere : en
  • DE722191C - Circuit arrangement for current surge generation for the free choice of dialers in telecommunications systems, in particular telephone systems : de en
  • FR873294A - Process for the manufacture of semi-rigid lingerie pieces : en fr
  • SU61428A1 - Multiple telegraph : en ru
  • US2287791A - Engine starter control apparatus : en
  • CH222001A - Pre-selection circuit. : de en
  • CA405855A - Directional antenna : en fr
  • GB546131A - Improvements in, or relating to, furnace hearths : en
  • US2288386A - Method of manicuring and article for same : en
  • US2288575A - Frequency modulation : en
  • USD132914S - Design for a bottle : en
  • US2288045A - Process for roasting cocoa beans : en
  • CA405717A - Vibratory screen : en fr
  • CH222153A - Process for the preparation of a new dye of the anthraquinone series. : de en
  • US2288127A - Viscosity-controlled unit : en
  • CH221917A - Roller scraper brush for roller mills. : de en
  • US2288039A - Heat-treating apparatus : en
  • US2287981A - Method and apparatus for supplying current to exciter lamps : en
  • US2287935A - Treatment of hydrocarbons : en
  • US2287989A - Release device for fire protection apparatus : en
  • US2288417A - Manual reset valve : en
  • US2288462A - Sound reproducing system : en
  • US2287933A - Tangent bender : en
  • USD132889S - Design for a badge or simttar article : en
  • US2288563A - Top construction for tables or the like : en
  • US2288376A - Lamp holder : en
  • US2287859A - Ball winding machine : en
  • US2288043A - Adjustable electrical resistance : en
  • US2288032A - Automatic welding apparatus : en
  • US2288267A - Strip holding device for duplicating apparatus : en
  • US2287934A - Manufacture of fluoro-hydrocarbons : en
  • US2287952A - Brake drum and method of making same : en
  • PL30622B1 - A method for removing and recovering residual solvent from a liquid, especially residual selective solvents from hydrocarbon oils, and a device for carrying out this method : en pl
  • USD132927S - Design fob an apron : en
  • BE445735A - : en fr
  • CA405727A - Gyratory crusher : en fr
  • DE722072C - Load cell for internal combustion engine fuel regulator, especially for aircraft : de en
  • FR873182A - Manufacturing process of seamless pipes in hard-to-deform hot metals : en fr
  • USD132892S - Statuette or similar article : en
  • GB546180A - Improvements in and relating to collapsible bunks : en
  • US2288152A - Hectograph blanket : en
  • FR873082A - Variable pressure fluid flow regulator : en fr
  • FR873184A - Safety contact for flashlight : en fr
  • FR873121A - Stapler-nailer : en fr
  • GB546171A - Improvements in or relating to cellulosic textile materials suitable for use in manufacturing laminated articles, composite articles made therefrom and methods of making such materials and articles : en
  • DE722104C - Differential protection with percentage relay : de en
  • DE722164C - Cooling tub for periodic absorption refrigeration machines : de en
  • GB546136A - Dental instrument or device for the cleaning of teeth : en
  • FR873083A - Improvement in power line signal transmission systems : en fr
  • USD132910S - Design for a heating radiator : en
  • CA405810A - Bottle filling valve bell top : en fr
  • US2288070A - Hydrocarbon conversion process : en
  • US2287863A - Level : en
  • PL30631B1 - : en pl
  • CH222095A - Device for the formation of loops on straps, in particular on the carrying straps of the storm pack. : de en
  • US2288343A - Match book and holder : en
  • USD132933S - Design for a combined ironing and finishing machine : en
  • CH221920A - Process and apparatus for the production of neutral hypochlorine solutions. : en fr
  • US2288353A - Washing apparatus : en
  • US2288481A - Visor construction : en
  • CA405849A - Plant harvesting machine : en fr
  • PL30615B1 - Radio Corporation of America, New York, N. Y. '/ Receiver for simultaneous reception of two different carrier vibrations with constant frequency difference : en pl
  • US2287922A - Suction cleaner : en
  • US2288435A - Remote control apparatus : en
  • CA405722A - Motor control system : en fr
  • US2288301A - Razor : en
  • CH222097A - Sled for military mountain formations, with runners formed from skis for the transport of pack animal loads including saddle. : de en
  • CH222080A - Indicator and control board. : en fr
  • US2287950A - Piezoelectric device : en
  • US2288248A - Heating means for grease guns : en
  • US2287777A - Regenerative heat exchanger : en
  • US2287994A - Electric switch : en
  • US2288324A - Electric circuit breaker : en
  • US2288358A - Carrier for necked containers : en
  • PL30640B1 - : en pl
  • US2288359A - Detachable handle for cans : en
  • GB546203A - Improvements in and relating to temperature responsive control devices : en
  • CH221923A - Process for the production of a new condensation product. : de en
  • DE722071C - Coin counting device : de en
  • DE722100C - Socket in which switching elements are provided between the power supply and the sockets : de en
  • FR873062A - Mechanically operated device for establishing any phase relationship between two synchronously rotating shafts : en fr
  • FR873132A - Cable gland and pipe assembly sleeve : en fr
  • FR873168A - Mounting device for passing from an asymmetric high-frequency power line into a symmetrical power line or vice versa, and intended in particular for waves of the order of one meter and one decimeter : en fr
  • US2287788A - Control system : en
  • CH222041A - Method and device for insulating electrical conductors. : de en
  • FR873110A - Shoe known as <cothurne> single lace of adjustable length, and reinforced flexible sole : en fr
  • FR873164A - Press for gluing wooden parts and similar materials : en fr
  • FR873239A - Rear light, in particular for bicycles, with a protective glass forming at the same time a reflector : en fr
  • GB546266A - Improvements in and relating to electromagnetic switches, particularly for use as starting relays for alternating current motors : en
  • BE445460A - Procedure for establishing constructions : en fr
  • DE722083C - Axle arrangement on road vehicles : de en
  • USD132928S - Design for a gem setting : en
  • CA405763A - Fractionating tower control system : en fr
  • US2288037A - Clutch : en
  • DE722227C - Accelerometer : de en
  • US2288138A - Wire grip : en
  • US2288225A - Pipe coupling : en
  • US2288506A - Watertight threadless connector : en
  • US2288295A - Electric valve control circuit : en
  • DE722116C - Soap holder : de en
  • FR873286A - Method and apparatus for the rapid production of small plastic articles : en fr
  • US2288356A - Press for vulcanizing play balls and similar articles : en
  • US2288023A - Machine for assembling roller bearings : en
  • US2288320A - Process of preparing chromium oxide gel catalysts : en
  • US2288542A - Drilling apparatus : en
  • FR873075A - Anthraquinone series wool dyes and method of production : en fr
  • US2287870A - Package : en
  • US2288419A - Removable eraser for pencils : en
  • GB546125A - Improvements in, or relating to, tumbril carts : en
  • GB546128A - Improvements in or relating to motor-transmitting couplings : en
  • AU240141A - An improved kiln for manufacturing charcoal from wood : en
  • CH222094A - Table top for garden umbrellas. : de en
  • CA405853A - Radio high frequency system : en fr
  • CH222135A - Process for the preparation of a 1,1'-dioxyazo dye. : de en
  • CA405789A - Flame-cutting method : en fr
  • CH221936A - Process for the softening of polyurethanes. : de en
  • US2288245A - Oil and gas separator : en
  • US2287887A - Scarf and sash : en
  • US2288428A - Device for protecting electrical apparatus from voltage surges : en
  • GB546163A - Lubricating means for sewing machine loop-takers : en
  • FR873167A - Device intended to establish a correct phase relationship between two shafts rotating synchronously : en fr
  • CH221926A - Process for the production of a new azo dye. : de en
  • DE722114C - Process for the production of casting or compression molds : de en
  • GB546207A - Improvements in and relating to the desalting of fish : en
  • US2288399A - Electrical measuring device : en
  • US2288418A - Manufacture of mixed phosphates : en
  • US2288291A - Method of forming cutters : en
  • US2288451A - Electric switch : en
  • US2288528A - Direction indicator and signal : en
  • US2288243A - Indicator apparatus : en
  • FR873236A - Method for shortening the duration of the entry into oscillation of an oscillating element : en fr
  • FR873229A - Safe lock : en fr
  • USD132878S - Design for a settee : en
  • US2288239A - Electron lens and deflecting system : en
  • CA405830A - Fluid actuated apparatus : en fr
  • CH221991A - Projection system. : de en
  • FR873148A - Contact apparatus for gas reactions : en fr
  • GB546120A - Improvements in or relating to road sweeping machines : en
  • GB546177A - Improvements in the production of hydrogen : en
  • US2287828A - Pipe coating apparatus : en
  • FR873163A - Press for gluing wooden parts of all sizes : en fr
  • FR873234A - Welding improvements for refractory metals : en fr
  • GB546255A - Improvements in or relating to rotor assemblies and rotors for rotary pumps of the sliding vane type : en
  • US2288371A - Movable doll and the like : en
  • CA405731A - Gas purifying apparatus : en fr
  • CH222176A - Process for preparing a cyclic sulfonic acid amide compound. : de en
  • PL30627B1 - : en pl
  • US2288171A - Cabinet latch : en
  • US2287881A - Telephone system : en
  • US2287941A - Refrigeration apparatus : en
  • US2287983A - Filter : en
  • DE721625C - Process for the preparation of water-insoluble monoazo dyes : de en
  • FR873159A - Exercise apparatus for studying the use of the slide rule : en fr
  • DE722070C - Calculator with full keyboard and locking of the drive mechanism if the keystroke is insufficient or if the key is pressed again : de en
  • US2288024A - Gas valve : en
  • USD132925S - Design for an apron : en
  • US2288420A - Carriage control means of machine tools : en
  • CH221894A - Process for the production of a fibrous material sheet for personal hygiene, in particular toilet paper, and a sheet material produced according to this process. : de en
  • PL30665B1 - Fichtel & Sachs A, -G., Schweinfurt Outer sleeve for freewheel hub, especially for bicycle hub : en pl
  • USRE22126E - Separation of phases with the aid of sonic waves : en
  • CH221976A - Device for visualizing electrical impulses and vibrations. : de en
  • US2287798A - Vapor generator : en
  • US2288511A - Automobile lift : en
  • CH221938A - Process for filtering liquids and apparatus for carrying out the process. : de en
  • CH222074A - Process for the preparation of a sulfonamide. : de en
  • US2287890A - Adjustment for dial indicators : en
  • DE721744C - Arched ceiling for steam boilers : de en
  • DE722190C - Synchronous clock with quarter and full hour calculating hammer driven by the synchronous motor : de en
  • FR873081A - Charcoal crusher : en fr
  • AU330841A - Improvements in fluid motors or gear pumps : en
  • US2287967A - Wringer : en
  • CH222162A - A grinding tool consisting of a carrier made of aluminum and a material to be grinded on it and a process for its manufacture. : de en
  • US2288067A - Ice cream freezer : en
  • US2288073A - Printing plate having a water repellent surface and method of preparing same : en
  • CA405778A - Film or sheet forming apparatus : en fr
  • CH222175A - Process for preparing a cyclic sulfonic acid amide compound. : de en
  • AU115356B2 - Compound lubricating oils : en
  • US2288362A - Electric valve frequency changer : en
  • US2288523A - Delivery mechanism : en
  • CH221880A - Zinc alloy pipe fitting. : de en
  • CH221981A - Transformer, especially voltage converter, with a cylindrical vessel. : de en
  • PL30660B1 - The method of producing active gas black : en pl
  • CH222068A - Device for the direct sterile withdrawal of blood from the bloodstream and for the collection of blood plasma. : de en
  • BE445589A - Portable firearm with superimposed barrels and vertical block closure. : en fr
  • CH221897A - Closure device on containers. : de en
  • US2287894A - Mechanical pencil : en
  • US2288124A - Drilling string protector : en
  • US2288224A - Lining machine : en
  • PL30650B1 - A method of producing magnesium by reducing magnesium oxide compounds with calcium carbide : en pl
  • US2288401A - Method of treating diesel fuel : en
  • US2288557A - Method of and composition for providing permeable cement packs in wells : en
  • SU61359A1 - Wiper dryer for cotton and similar materials : en ru
  • US2288200A - Process for the production of water-soluble cellulose ethers in powder form : en
  • AU115365B2 - Improvements relating to the control of fluid compressor systems : en
  • CA405803A - Luminair : en fr
  • CH221985A - Method and device for matrixing mechanically inscribed sound bands. : de en
  • CH222038A - Winding cooled with insulating liquid for transformers and reactors. : de en
  • US2288217A - Double ratchet wrench : en
  • US2288414A - Control system for closures : en
  • FR873266A - Process for the preparation of p-amino-benzene-sulfon-acylamides : en fr
  • PL30616B1 - : en pl
  • USD132875S - Design foe a table : en
  • USD132884S - Design for a textile fabric : en
  • US2288529A - Electrical switch : en
  • DE721961C - Branch terminal for electrical lines : de en
  • US2288385A - Rivet cutter : en
  • US2288022A - Door emergency lock : en
  • US2288573A - Crozing and stacking mechanism for hat bodies : en
  • CH222160A - Carbide moldings. : de en
  • DE722211C - Method for applying winding cores to coils or windings of transformers, chokes or the like. : de en
  • US2288031A - Feed mechanism : en
  • US2288465A - Multiglazed window and light screen therefor : en
  • CH221996A - Hard solder for aluminum and aluminum alloys. : de en
  • US2288473A - Chopper and slicer : en
  • CH222056A - Process for converting a three-phase alternating current into direct current or vice versa by means of mechanical converters and switching devices to carry out this process. : de en
  • US2287806A - Air cleaner and silencer assembly : en
  • CH221921A - Process for removing sulphurous acid from basic aluminum sulphite. : de en
  • CH222163A - Device on single-stage centrifugal fans to convert the speed of the conveying medium generated in the impeller into pressure, using diffusers and a spiral housing. : de en
  • CH222167A - Arrangement for converting devices working as rectifiers or inverters. : de en
  • CH222044A - Chassis for high-voltage switchgear. : de en
  • CH222096A - Tube. : de en
  • CH222062A - Contact device for periodic switching. : de en
  • USD132939S - Design fok an elbow pipe fitting : en
  • CA405723A - Fluid foil : en fr
  • US2288297A - Method for controlling the flow of gases : en
  • US2287984A - Damping device : en
  • FR873157A - Power supply for high voltage rectifier auxiliary equipment : en fr
  • DE722160C - Air hammer : de en
  • AU183741A - Automatic water feed for gas producers : en
  • CA405840A - Garment pressing machine : en fr
  • US2288349A - Method of making closure caps : en
  • CH221867A - Stove for slow burning of sawdust, wood and coal waste or the like. : de en
  • USD132937S - Design for a diaper or simdiar article : en
  • PL30673B1 - A method of producing artificial viscose fibers and threads : en pl
  • US2288467A - Baseball mitt or glove : en
  • US2288560A - Thermohydrometer : en
  • US2287892A - Change making machine : en
  • US2287977A - Shoe treating apparatus : en
  • US2288378A - Dimpling tool : en
  • CA405835A - Printing telegraph apparatus : en fr
  • USD132897S - Design for a textile fabric : en
  • AU188641A - Improvements in bolt anchors : en
  • CA405804A - Rotary hydraulic power transmitter : en fr
  • FR873098A - Reflector device particularly intended for signaling : en fr
  • US2287787A - Thermostatic switch : en
  • US2288061A - Oil cooler and heat exchanger : en
  • PL30624B1 - C. Lorenz Aktiengesellschaft, Berlin-Tempelhof Stand for high-frequency telecommunications device : en pl
  • US2288097A - Lifting jack : en
  • US2288228A - Device for repairing automative engines : en
  • DE722150C - Paints : de en
  • FR873099A - Improvements to wood gasifiers and the like : en fr
  • US2287833A - Cutoff machine : en
  • PL30668B1 - : en pl
  • US2288069A - Crusher : en
  • USRE22127E - Composition of matter and process : en
  • PL30644B1 - A shaft furnace for carrying out metallurgical processes : en pl
  • US2288175A - Sadiron : en
  • DE722068C - Process for the production of semiconductor cells for concentration determinations : de en
  • US2287862A - Transmitting system : en
  • US2287883A - Switch control device : en
  • US2287928A - Nt office : en
  • US2288271A - Emergency apparatus for ships : en
  • US2288174A - Printing press : en
  • FR873283A - Method for producing color-selected images of exact intensity values : en fr
  • GB546178A - Improvements in and relating to furnace fronts : en
  • PL30621B1 - : en pl
  • US2288355A - Builder's platform : en
  • US2288436A - Resuscitating device : en
  • US2288232A - Electric heating pad : en
  • FR873124A - Advanced spade : en fr
  • FR873212A - Curler enhancements : en fr
  • US2288352A - Transfer machine : en
  • US2288254A - Spindle driving mechanism fob screw : en
  • US2288566A - Process of producing acrylic acid and its salts : en
  • USD132885S - Design fob a shoe : en
  • CH222166A - Arrangement for converting devices working as rectifiers or inverters. : de en
  • US2288502A - Optical objective : en
  • CH221871A - Insert grate for wood burning, especially for central heating boilers. : de en
  • DE722061C - Arrangement for weight measurement independent of acceleration and position : de en
  • DE722152C - Device for monitoring the consumption of electrical energy or the like. : de en
  • US2288283A - Electric switch : en
  • PL30649B1 - : en pl
  • GB546209A - Process for tanning animal hides, and the resulting leathers : en
  • US2288588A - Solvent for organic film-forming materials : en
  • US2287839A - Process of spinning : en
  • US2288375A - Frequency modulation : en
  • FR873130A - Portable hot water heater : en fr
  • US2288558A - Friction window sash mounting : en
  • PL30617B1 - International Standard Electric Corporation, New York, N.Y. High voltage single-pass cable : en pl
  • US2288087A - Apparatus for forming dustless carbon black : en
  • US2288220A - Garment pressing board : en
  • PL30670B1 - Ringhoffer-Tatra-Werke A, G "Praga Distribution of cooling air to the engine compartment in cars with : en pl
  • PL30641B1 - Discharge lamp : en pl
  • USD132880S - Rideout velocipede : en
  • US2288144A - Electric range : en
  • FR873000A - : fr
  • FR873080A - Process for the production by pressure of tubes, in particular of cable coatings : en fr
  • DE721728C - Carrying device for solid or hollow bodies in hardening heat treatments : de en
  • DE722080C - Advertising device, especially for roads : de en
  • US2287879A - Tangled wire mass : en
  • CH222110A - Bicycle coaster brake. : de en
  • US2287873A - Fire extinguishing apparatus : en
  • CH221913A - Zipper. : de en
  • CH222081A - Device for the operational control of textile machines. : de en
  • GB546137A - Improvements in reciprocating pumps : en
  • FR873267A - Electric discharge tubes with deviation control : en fr
  • CH221863A - Reinforced concrete ceiling. : de en
  • US2287992A - Valve construction : en
  • US2288541A - Drilling apparatus : en
  • US2288253A - Introducing mercury into vacuum devices : en
  • US2288160A - Joint assembly : en
  • US2288423A - Eye protector for riders : en
  • US2288518A - Azo dyestuffs capable of being metallized : en
  • US2288512A - Multiple strand fourdrinier wire : en
  • CA405733A - Rear view mirror for eye-glasses : en fr
  • CA405736A - Table decoration : en fr
  • CH221873A - Chimney attachment. : de en
  • US2287799A - Hammer mill : en
  • DE722145C - Detachable safety lock for strapping of packages : de en
  • FR873181A - Improvements to speed modulating lamps for very short waves : en fr
  • FR873253A - Improvement in lubrication pumps : en fr
  • GB546169A - Improvements in furnaces : en
  • CA405716A - Servo-motor device : en fr
  • DE722149C - Current collector roller for fine regulator : de en
  • GB546141A - Improvements in or relating to wireless receivers : en
  • GB546237A - Multimotored vehicle driving unit : en
  • CH222129A - Process for the preparation of a disazo dye. : de en
  • CA405721A - Shaft control system : en fr
  • CH221887A - Gas generator system with an engine driven by the gas generated. : de en
  • CA405745A - Clutch plate : en fr
  • CH221914A - Closing device for items of clothing. : de en
  • CH221944A - Process for the production of cans made of non-metallic material, with an inside film covering that covers at least the casing and floor, and cans produced by this process. : de en
  • FR873238A - Process for the preparation of products derived from superpolyamides : en fr
  • US2288284A - Coffee extract : en
  • PL30643B1 - : en pl
  • US2288113A - Container : en
  • DE722129C - Air motor with several working cylinders arranged in a circle and parallel to an axis : de en
  • FR873247A - Improvements to filters for gasifier : en fr
  • CH222115A - Ship propulsion with inclined propeller shaft. : de en
  • FR873199A - Process for the preparation of oxypyridine derivatives : en fr
  • CA405767A - High efficiency amplifier : en fr
  • PL30620B1 - The device for fixing the frame parts carrying the blade and the jet wheel in potato diggers : en pl
  • DE722018C - Connecting rod bearings for two-stroke internal combustion engines with star-shaped or fan-shaped cylinders : de en
  • CH222164A - Device for protecting high-voltage windings against surge voltages. : de en
  • CH222036A - System for the transport of perishable goods to be kept in closed and insulated containers at low temperature. : de en
  • CH221955A - Pencil sharpener. : de en
  • CH221958A - Revolver with magazine. : de en
  • AU115349B2 - Combined toggle and hydraulic press : en
  • CH221916A - Grain washing machine. : en fr
  • CH222018A - Antivibration support. : en it
  • CH221934A - Process for the production of thermoplastic masses. : de en
  • CH221993A - Anti-dust winder. : en fr
  • DE722126C - Two-stroke internal combustion engine : de en
  • CH221942A - Carbon paper and process for its manufacture. : de en
  • CA405817A - Photo sensitive transparency : en fr
  • CH222016A - Button set. : de en
  • FR873207A - Method and device for frequency division : en fr
  • PL30676B1 - Total Kommanditgesellschaft Foerstner & Co, Apolda Air foam device : en pl
  • US2288090A - Mercury relay : en
  • USD132902S - Design foe a stand for a hand telephone : en
  • CH222109A - Handle on vehicles such as bicycles and motorcycles. : de en
  • US2288480A - Engine or the like : en
  • CH221997A - Tin solder. : de en
  • FR873058A - Pressure relief device for rotary pressurized fluid distributor : en fr
  • GB546182A - Improvements in piezoelectric devices for use as loud-speakers or in recording sound : en
  • CA405815A - Abrasive article : en fr
  • BE483136A - : en
  • CH222022A - Fluid transmission. : de en
  • BE445473A - Process for the preparation of sulfonic acids : en fr
  • FR873052A - typewriter exhaust : en fr
  • DE720007C - Process for increasing the ergosterine content of yeast : de en
  • GB546145A - Improvements relating to the measurement of gas flow : en
  • DE722210C - Arrangement for the production of a staggering of the parallel-connected brushes or groups of brushes of alternating current series machines with intermediate transformer : de en
  • DE722052C - Magnetron circuit : de en
  • DE722154C - Air-cooled star cylinder engine with a fan mounted on the crankshaft : de en
  • AU242841A - Improved composite reinforced concrete floor construction : en
  • CH221868A - Accumulating furnace with heating fluid, in particular for workshops, studios, restaurants. : de en
  • US2288261A - Textile printing paste : en
  • DE722064C - A hardness tester working according to the preload method with a mechanically operating device for automatic zero setting of the dial gauge : de en
  • AU294141A - Compound lubricating oils : en
  • CH221945A - Clamping device for letter files. : de en
  • DE722079C - Device for the recovery of fat in smoke ovens : de en
  • DE722188C - Traffic control facility : de en
  • FR873178A - Device for maintaining constant pressure in conduits or vessels filled with liquids or gases : en fr
  • CH221969A - Tester for tools. : de en
  • DE722103C - Selective protection circuit with excitation and direction relay : de en
  • DE722148C - Device to avoid detuning in oscillation circuits when changing the coupling : de en
  • CA405782A - Motor reversing control means : en fr
  • GB546260A - An improved sealing device for anti-friction bearings : en
  • USD132893S - Design fob, a bed tkay : en
  • CA405773A - Photoflash synchronizing device : en fr
  • US2288009A - Fishing lure or artificial fishing bait : en
  • GB546234A - Improvements in brakes : en
  • PL30657B1 - : en pl
  • GB546193A - Improvements in apparatus for the construction of concrete roads : en
  • BE445556A - Process for the preparation, in the pure state, of amino carbonic acids from oximes : en fr
  • CA405790A - Ironing pad cover : en fr
  • DE722125C - Two-stroke internal combustion engine : de en
  • GB546152A - Improvements in or relating to electrically driven gyroscopes : en
  • GB546231A - Improvements in or relating to the supply conductors of electron discharge tubes : en
  • GB546220A - Improvements in and connected with refractory bricks and the moulding thereof : en
  • DK59913C - Procedure for the Preparation of Pregnant Diones-3,20. : da en
  • GB546214A - Improvements in and relating to the preservation of fish by salting : en
  • US2288137A - Liquid conditioning apparatus : en
  • FR873249A - New coupling method for double piston machines with one engine stroke per beat : en fr
  • FR873122A - Flexible wood sole : en fr
  • US2288036A - Induction heat treating : en
  • US2288492A - Stretcher : en
  • US2288431A - Water heating apparatus : en
  • DE722181C - Rotary shaft articulated connection for the common control of expansion flaps o. The like., The side by side on the circumference of flow hoods z. B. are arranged for the cool air outlet of air-cooled aircraft internal combustion engines : de en
  • FR873262A - Improvements to devices such as hydraulic cylinders : en fr
  • CH221995A - Process for the production of cast iron from iron mixtures containing steel and cast iron produced according to this process. : de en
  • CH222092A - Monitoring device on phase shift switches for directional antennas. : de en
  • FR873197A - Device indicating the complementary values to be introduced in the presence of given partial values of several factors in order to obtain a determined target result : en fr
  • GB546123A - Improvements in road sweeping and refuse collecting machines : en
  • GB546151A - Improvements in and relating to fluorescent materials : en
  • US2288004A - Tool holder : en
  • US2288238A - Grass or hay lifter : en
  • US2288500A - Stapling device : en
  • US2287997A - Refrigerated showcase : en
  • DE722179C - Beehive with pull-out support frame for the honeycomb frame : de en
  • FR873127A - Centrifugal pump with two wheels that can be put, at will, in parallel or in series : en fr
  • GB546133A - Improvements in or relating to fastening devices : en
  • PL30664B1 - A method of producing threads from multi-vinyl resins : en pl
  • US2288306A - Production of condensation products : en
  • US2288438A - Brake drum : en
  • US2288020A - Method of making printing screens : en
  • US2288379A - Weighing mechanism feeder : en
  • GB546132A - Improvements relating to the generation of frequency modulated electrical oscillations : en
  • US2287906A - Incubation of eggs : en
  • US2288278A - Gamma-ray well logging : en
  • DE722042C - Process for the production of vinyl methyl ketone from its aqueous solutions : de en
  • DE722096C - Process for the crease-proofing of textile goods made of cellulose hydrate fibers or mixed fiber goods containing them : de en
  • US2288229A - Indicating device : en
  • US2288100A - Chewing gum base : en
  • US2288292A - Magazine pencil assembly : en
  • CH221857A - Laying wheel, especially for potato planters. : de en
  • DE722084C - Paddle propeller : de en
  • FR873231A - Process for manufacturing disinfectant preparations with surface active properties : en fr
  • US2287808A - Apparatus for detecting a definite color phase during the processing of a material : en
  • US2288006A - Grate bar : en
  • US2288094A - Method of making tubing : en
  • US2288233A - Apparatus for increasing the flow of water in artesian wells : en
  • CA405852A - Olefine hydration : en fr
  • CH221907A - Closed-shed single-stroke dobby. : de en
  • US2287896A - Production of acyl aminosulphonic acids : en
  • CH222086A - Coin selector mechanism of a coin operated device. : en fr
  • CH222146A - Process for the production of a new azo dye. : de en
  • CH221891A - Articulated connection of the mutually facing ends of three parts of the longitudinal spars on a collapsible bed frame equipped with a flexible bed. : de en
  • CH222075A - Process for stabilizing active ingredients, especially essential oils, in plants. : de en
  • US2288316A - Apparatus for coating pipe : en
  • BE445737A - : en
  • USD132913S - Driving extension for power driven tool units : en
  • US2287899A - Adjustable waist construction : en
  • CA405739A - Collapsible tube closure : en fr
  • CH222066A - Electrode sealing on electric arc furnaces. : de en
  • CH222079A - Device for the transfusion of blood plasma, whole blood and blood substitute fluid. : de en
  • CH221946A - Clamping device for letter files. : de en
  • DE722128C - Fuel injection pump for internal combustion engines : de en
  • FR873218A - Process for drying and cooling absorbents : en fr
  • US2287955A - Device for movement of aircraft : en
  • US2288103A - Mattress construction : en
  • DE722078C - Hammer mill : de en
  • GB546252A - A new or improved reducing valve for use with fluids under pressure : en
  • US2288579A - Rotary machine tool : en
  • USD132904S - Bottle display unit or similar akticle : en
  • US2288247A - Vacuum breaker : en
  • US2288252A - Ringing circuit for carrier frequency communication systems : en
  • DE722228C - Closure, especially for bracelets, necklaces or the like. : de en
  • US2288104A - o i v it : en
  • US2288441A - Process for refining animal and vegetable oils : en
  • DE722140C - Shock absorbers for vehicles, especially aircraft : de en
  • US2288298A - Apparatus for marking articles : en
  • USD132895S - Design for a finger ring : en
  • US2287825A - Apparatus for cooling coated pipe : en
  • US2288146A - Brake : en
  • US2288191A - Nutcracking machine : en
  • US2288263A - Vulcanizer packing : en
  • US2288317A - Record holder : en
  • DE722214C - Measuring arrangement, in particular noise meter : de en
  • US2287770A - Metal spray gun : en
  • US2288202A - Firearm : en
  • US2288538A - Air conditioned receptacle : en
  • US2287903A - Closed receptacle or case : en
  • US2287969A - Brake system : en
  • US2288307A - Deflector attachment for ventilating fans : en
  • US2288135A - Stop motion mechanism for sewing machines : en
  • US2288491A - Open hearth furnace : en
  • DE722146C - Lighting body with ellipsoidal mirror : de en
  • CH222004A - Lathe for internal form turning of hollow bodies. : de en
  • US2287918A - Hydrocarbon conversion : en
  • US2288158A - Conduit supporting block : en
  • CH222050A - Surge arresters. : de en
  • CH222169A - Process for the preparation of a condensation product from 3,5-diethyl-hydroquinone and phytyl halides. : de en
  • BE445458A - : en fr
  • US2288564A - Method of making cages for roller bearings : en
  • USD132879S - Step plate for velocipedes or the like : en
  • CA405841A - Garment press : en fr
  • AU115347B2 - Improvements in or relating to receivers for start-stop printing telegraph signals : en
  • CA405799A - Universal joint : en fr
  • DE722176C - Device for raising and lowering the platform of a pallet truck : de en
  • CA405809A - Laminated shim producing apparatus : en fr
  • BE445697R - : fr
  • CH222077A - Process for the preparation of a condensation product. : de en
  • US2287910A - Tool for holding dental instruments for sharpening : en
  • CH221984A - Electrical computing network for the continuous determination of function values of a quotient of functions of several independent variables. : de en
  • US2288008A - Heat treating apparatus : en
  • CH222165A - Device for protecting high-voltage windings against surge voltages. : de en
  • GB546241A - Improvements in or relating to mobile cranes : en
  • US2288062A - Fruit handling machine : en
  • DE721945C - Process for the production of oxidation products from higher molecular paraffin hydrocarbons : de en
  • GB546111A - Improvements in and relating to gas fires and like heating appliances : en
  • GB546217A - Improvements in or relating to electric carrier wave signalling systems : en
  • AU115541B2 - An improved kiln for manufacturing charcoal from wood : en
  • CH221896A - Electric motor driven machine, so-called kitchen machine. : de en
  • CH221890A - Wedge plates, in particular for seating and reclining furniture. : de en
  • CH222019A - Snap ring. : de en
  • CA405791A - Annular object wrapping apparatus : en fr
  • PL30653B1 - : en pl
  • US2288041A - Induction heat-treating apparatus : en
  • CH221953A - Electric light meter. : de en
  • CH221875A - Electric heater. : en fr
  • US2288101A - Adjustable duster nozzle : en
  • CA405718A - Syrup manufacture : en fr
  • CH221878A - Method for coloring bricks using spray devices. : de en
  • CH222130A - Process for the preparation of a disazo dye. : de en
  • CH222148A - Process for the production of a new azo dye. : de en
  • BE445750A - : en fr
  • CH222154A - Process for the preparation of a new dye of the anthraquinone series. : de en
  • AU1410444A - Filament structure and method of assembling thesame : en
  • CH221951A - Photographic roll film camera with single lens reflex viewfinder. : de en
  • FR873243A - Tube Forming Machine For Paper Bag Making : en fr
  • BE445513A - Improvements made to bicycle lanterns. : en fr
  • CH222064A - AC electromagnet with tie rod. : de en
  • CH222009A - Device for grinding out recesses such as internal grooves and the like on workpieces. : de en
  • DK59921C - Apparatus for Automatic Comparison of the Intensity of Two Light Beams. : da en
  • FR873190A - Spark plug for internal combustion engines : en fr
  • US2288005A - Cigar lighter : en
  • US2288236A - Tuning arrangement for radio signaling apparatus : en
  • CH221903A - Method and device for the gentle dissolving of moist cellulose fleece consisting of cut and firmly compressed fiber material into individual fibers. : de en
  • CH222071A - Sleep mask. : de en
  • CH222032A - Device for starting free-flying piston engine compressors with the aid of compressed gas. : de en
  • CH222030A - Device for adjusting the start of injection of the injection pump of internal combustion engines. : de en
  • CH221879A - Process for the manufacture of ceramic products. : de en
  • US2288466A - Glassware forming apparatus : en
  • PL30630B1 - : en pl
  • US2288198A - Ethers of mono-hydroxy-halogen-1.4-benzoquinones and a process of preparing them : en
  • CH221885A - Portable charring furnace for wood and other plant waste. : de en
  • CH221922A - Process for the purification of nitriles. : en fr
  • CA405768A - Deflecting circuit : en fr
  • DE722162C - Control for flywheelless piston engines : de en
  • US2288265A - Automatic keying device : en
  • DE722235C - Process for the manufacture of finned tubes : de en
  • CA405734A - Magnesium manufacture : en fr
  • AU115366B2 - Treatment of oil cake : en
  • CH222010A - Device intended for tool grinding machines for radial relief grinding of tools with helical cutting edges. : de en
  • US2288212A - Crease construction for trousers : en
  • US2288450A - Accelerator device : en
  • US2288471A - Wire stretcher and splicer : en
  • US2287916A - Clogged sewer cutting head : en
  • US2288497A - Concentration of potash ores : en
  • CH222067A - Device with at least one electrical discharge tube. : de en
  • CH222144A - Process for the production of a new azo dye. : de en
  • CA405761A - Welded article manufacture : en fr
  • USD132909S - Design fob an ascot scarf : en
  • US2287943A - Educational device : en
  • FR873076A - Arrangement of fins for cylinders of air-cooled internal combustion engines : en fr
  • DE722087C - Rate monitoring device for timers, in which a straightening device driven by a synchronous motor periodically corrects the timer : de en
  • DE722172C - Oil pressure atomizer burner : de en
  • CH221905A - Process for the pre-spinning of fibers and machine for carrying out the process. : de en
  • CH221869A - Solid fuel stove. : de en
  • AU121139B2 - Filament structure and method of assembling thesame : en
  • CA405766A - Electric lamp : en fr
  • PL30614B1 - Device for generating saw vibrations for deflecting the beam of cathode rays in vacuum lamps : en pl
  • US2288050A - Lightning arrester : en
  • US2288368A - Furnace : en
  • AU369141A - Improved circuit for adjusting the disposition ofthe image of cathode-ray tube : en
  • AU118664B2 - Improvements in and relating tothe cooling of cylinders of internal combustion engines : en
  • CA405785A - Toaster : en fr
  • CA405820A - Sound recording system : en fr
  • CH221888A - Steam oven. : de en
  • US2288335A - Synthetic acrolein : en
  • CH222158A - Clip made of resilient wire, in particular for paper goods and textiles. : de en
  • US2288581A - Elastic wheel : en
  • CH222072A - Operating table. : de en
  • US2288416A - Apparatus for the treatment of hay fever : en
  • CH222047A - Star point tap selector for regulating transformers. : de en
  • US2288030A - Transmission line structure : en
  • US2288082A - Dictation machine control means : en
  • DE722175C - Backpack carrying frame : de en
  • US2287797A - Apparatus for controlling electric circuits : en
  • US2288169A - Mechanism control apparatus : en
  • US2288415A - Control system : en
  • DE723565C - Photoelectric light meter : de en
  • FR873204A - Cage die with an adjustment collar for the bearings : en fr
  • CH221858A - Installation in drying rooms through which air-permeable dry material passes. : de en
  • US2287957A - Bag closing and sealing apparatus : en
  • US2287996A - Adjusting means for front and rear shutters of motion picture projectors : en
  • US2287850A - Gray cast iron : en
  • CH221988A - Process for the serial production of sound tapes provided with mechanically scannable sound writing. : de en
  • CA405754A - Coking coal treatment : en fr
  • DE722085C - Electric fire alarm system : de en
  • FR873171A - Process for obtaining celluloses low in pentosans from plant materials : en fr
  • CH222073A - Mobile transport device. : de en
  • CH222040A - Rotor for asynchronous motors with cast short-circuit winding. : de en
  • GB546204A - Improvements in and relating to pyrophoric lighters : en
  • PL30633B1 - : en pl
  • PL30678B1 - : en pl
  • US2288244A - Spead comprising animal body fat : en
  • USD132912S - Design for an oven control indicator : en
  • ES148346A2 - PROCEDURE FOR MAKING FIBROUS MATERIALS WATER-REPELLENT : en es
  • US2288072A - Method and apparatus for making bonded fibrous products : en
  • US2288287A - Sheet positioning means : en
  • DE722216C - Device for determining the magnetic properties of metal sheets with a terminal yoke : de en
  • DE722095C - Process for the production of hollow bodies exhibiting an emptying approach : de en
  • FR873216A - Automatic regulation system of alternating current circuits : en fr
  • CA405740A - Fluid fuel burning apparatus : en fr
  • DE722066C - Balancing machine with compensation of the disturbing forces by counter forces : de en
  • US2288482A - Safety stove-cabinet : en
  • US2287972A - Ice tray : en
  • CH222087A - Selector mechanism for printing telegraph. : en fr
  • GB546162A - Improvements in beam grids for roof and floor structures : en
  • CA405752A - Hollow propeller : en fr
  • US2288279A - Superpolyamide-formaldehyde reaction product : en
  • US2288360A - Method and apparatus for interconnecting manifold sets of stationery : en
  • US2287795A - Mechanism for removing moisture from liquid products : en
  • PL30675B1 - Pneumatic device for balancing the weight of the gun barrel : en pl
  • FR873059A - Automatic deep mowing device for automatic weapons with recoil movement : en fr
  • FR873158A - Device for retaining an auxiliary reserve of fuel in the fuel tank, in particular of motor cars : en fr
  • FR873175A - Condensation products and their preparation process : en fr
  • US2288461A - Separating hydrocarbon fluids : en
  • US2288525A - Electrical plug and receptacle : en
  • PL30613B1 - : en pl
  • US2287974A - Heating apparatus : en
  • US2288346A - Hair-curling device : en
  • USD132888S - Design for a pin or similar article : en
  • US2287907A - Baby bed : en
  • BE445393A - Process for the implementation and enhancement of the textile material of used rubber objects, such as vehicle tires, conveyor belts and the like : en fr
  • CH221932A - Process for the preparation of a polymerization product. : de en
  • FR873276A - Check valve determined by liquid pressure : en fr
  • FR873285A - Suction nozzle for dust extractors : en fr
  • CA405837A - Synchronous motor circuit : en fr
  • CH221865A - Snow shovel. : de en
  • DE722237C - Iron core coil for the magnetic deflection of cathode rays in cathode ray tubes for television purposes : de en
  • US2288059A - Brake shoe mounting : en
  • US2288300A - Control mechanism : en
  • DE710753C - Method for obtaining a vanadium-rich slag : de en
  • DE722077C - Circle cutting device for oxy-fuel cutting machines : de en
  • FR873255A - Improvements to brake control devices for lifting devices : en fr
  • US2288116A - Snatch block : en
  • FR873172A - Device for directed reception of wave movements : en fr
  • GB546261A - Improvements in telemetric indicating systems : en
  • FR873237A - Stretcher trolley : en fr
  • US2288154A - Dry kiln and the art of kiln drying : en
  • FR873056A - New polymerization products and production process : en fr
  • FR873118A - Process and device for the production of a protective gas by dissociation and combustion of ammonia : en fr
  • GB546157A - Improvements relating to gauges : en
  • US2288115A - Vacuum sweeper : en
  • CH221939A - Process for the production of opaque, almost white and colorable layers on objects made of aluminum and aluminum alloys. : de en
  • GB546219A - An improved substitute material for tanned leather for use in the manufacture of straps and other articles : en
  • US2287954A - Locomotive pilot coupler structure : en
  • US2288048A - Riveting machine : en
  • USD132874S - Design for a game board or similar article : en
  • US2287869A - Pressure tank for milk : en
  • CA405842A - Human body congestion treating equipment : en fr
  • FR873054A - Safety device for chain conveyors : en fr
  • US2288033A - Method of producing autofrettaged hubs : en
  • FR873270A - Multi-range receive switch block : en fr
  • PL30638B1 - A method of producing a fabric with high weft density, independent of the bottle, and an apparatus for carrying out the method : en pl
  • US2287998A - Telephone circuit : en
  • US2288513A - Alloy : en
  • CH222057A - Power converter with ignition pin-controlled discharge sections. : de en
  • GB546233A - Improvements in and relating to vehicle wheels : en
  • US2287834A - Gas discharge device and circuit therefor : en
  • US2287897A - Manufacture of organic derivatives of cellulose materials : en
  • US2287960A - Hydraulic steering and control appliance : en
  • FR873193A - Process preventing the increase in viscosity of colloids : en fr
  • CH221968A - Tester for tools. : de en
  • CA405764A - Hydraulic hoist for dump trucks : en fr
  • US2288132A - Ozone generator : en
  • US2288258A - Hot air heating plant : en
  • US2288282A - Process for producing polyhydroxyarylsulphones : en
  • US2287909A - Expansion chamber for pressure core barrels : en
  • US2288556A - Method of and composition for producing permeable packs in wells : en
  • US2288182A - Container manufacture : en
  • PL30663B1 - : en pl
  • FR873100A - Electro-ionic grinder : en fr
  • GB546115A - Improvements in or relating to pipe anchors or tubing catchers for oil and like wells : en
  • US2288063A - Drink mixing device : en
  • US2287988A - Fusible strut for automatic sprinklers : en
  • PL30672B1 - moPFwJ As / M Loze to department : en pl
  • US2287930A - Plastic material : en
  • FR873174A - Inductor comprising a material of good magnetic permeability and method of making such material : en fr
  • FR873291A - Improvements to clippers for trimming hairs, especially those of rabbit skins : en fr
  • GB546211A - Improvements in and relating to systems for the automatic collection of payment for services supplied : en
  • US2287865A - Combined ring and pin : en
  • US2288348A - Welding equipment : en
  • US2288531A - Benzenesulphonamide compounds : en
  • US2287915A - Electrically heated clothing and equipment : en
  • FR873265A - Improvements made to gasifiers, intended in particular to supply fixed moterrs : en fr
  • FR873191A - Glazing in cockpit and living quarters, in particular for aircraft altitude rooms : en fr
  • US2288240A - Beverage making device : en
  • US2288361A - Hosiery : en
  • US2287766A - Rubber flooring or sheeting : en
  • CA405845A - Radio static eliminating apparatus : en fr
  • US2287767A - Bearing setting instrument : en
  • DE722138C - Control device with built-in transmission for aircraft : de en
  • DE722231C - Gear for generating a straight line movement : de en
  • DE722171C - Device to achieve a pulsation-free three-phase power with grid-controlled three-phase single-phase current converters : de en
  • CH222103A - Bike holder. : de en
  • FR873086A - Process for the electrolytic oxidation of magnesium alloys : en fr
  • AU115363B2 - Improvements in or relating to rotor assemblies and rotors for rotary pumps ofthe sliding vane type : en
  • US2288000A - Sound reproducing apparatus : en
  • US2288562A - Arrow shaft construction : en
  • US2288269A - Electrostatic heating apparatus : en
  • CH221872A - Method and device for heating rooms. : de en
  • CH221886A - Gas generator. : de en
  • DE722238C - Circuit arrangement for automatic telephone systems : de en
  • CH222082A - Office machine controlled by punch cards. : de en
  • US2288242A - Phonograph : en
  • CA405729A - Tobacco pipe : en fr
  • CH222174A - Process for producing a cyclic sulfonic acid amide compound. : de en
  • GB546189A - Improvements in flash lamps : en
  • FR873055A - Motor vehicle with engine arranged at the rear : en fr
  • FR873295A - Process for fully utilizing the qualities of hard steel in reinforcement for reinforced concrete : en fr
  • CH221979A - Maximum consumption measuring device. : de en
  • FR873222A - Dry rectifier valve comprising in particular a support plate of light metal : en fr
  • FR873226A - Device for gas control : en fr
  • FR873254A - Process for fractional separation of hydrocarbon mixtures : en fr
  • AU115372B2 - A method and means of controlling the entry of explosion mixtures toan internal combustion engine : en
  • CH222120A - Electric flow heater with induction heating. : de en
  • FR873272A - Process for preserving vegetables with a high sugar content : en fr