• US2319916A - Electric razor : en
  • US2320136A - Well drilling bit : en
  • CA412724A - Rectangular wire enamelling apparatus : en fr
  • US2320145A - Target fish : en
  • AU121653B2 - Improvements in or relating to laminated articles and their methods of manufacture : en
  • DE735826C - Formation of the bearing goniometer used in patent 706538 : de en
  • FR51958E - Sulphonic acids or ethers salts of sulfuric acid and process for preparing these products : en fr
  • US2319979A - Conveyer : en
  • US2320243A - Smokeless powder composition : en
  • US2320031A - Lock nut, including a method for its construction : en
  • US2320292A - Educational block : en
  • US2319875A - Garment with detachable neckpiece : en
  • US2319836A - Process of catalytically cracking hydrocarbon oils : en
  • FR882251A - Anticryptogamic porridge based on pyroligneous juice : en fr
  • US2320235A - Feeding device for machine tools : en
  • SE107457C1 - : sv
  • US2320007A - Damper : en
  • US2319863A - Loom for weaving ladder tape : en
  • US2320242A - Method of purifying sulphuric acid mixtures : en
  • CA412704A - Friction clutch : en fr
  • US2320162A - Air valve : en
  • FR51965E - Process for the production of black-colored, non-corrosive protective layers on the surface of aluminum or aluminum alloy objects : en fr
  • US2320041A - Domestic appliance : en
  • AU116988B2 - Improvement in the manufacture of hollow staybolts : en
  • US2320133A - Dishwasher : en
  • US2320152A - Metal trimming for overalls : en
  • AU477842A - Improvement in the manufacture of hollow staybolts : en
  • US2319959A - Adhesive : en
  • US2320225A - Condensation products of amidines with alkylene oxides : en
  • DE735840C - Single-pole electrostatic indicator to indicate the voltage state of electrical lines : de en
  • GB553593A - Polarograph : en
  • US2320053A - Motor drive : en
  • DE735730C - Gas or vapor-filled discharge vessel : de en
  • US2319889A - Refractometer : en
  • US2320059A - Apparatus for treating oil : en
  • US2320120A - Electron discharge device : en
  • US2320287A - Lubricating oil : en
  • US2320050A - Deflector ring : en
  • FR51991E - extra-shortwave transmitter : en fr
  • FR882252A - High gear motor assembly : en fr
  • CA412784A - Metal-enclosed bus structure : en fr
  • US2320105A - Voting machine : en
  • IE17484L - Refrigerated display case : en
  • US2319873A - Resilient body : en
  • US2320068A - Rewind core and endpiece : en
  • DE735809C - Valve with two valve bodies connected to one another by a threaded pin : de en
  • US2320272A - Notching machine and method : en
  • US2319942A - Coal spray composition : en
  • GB553465A - Improvements in or relating to processes and mash for the production of riboflavin by butyl alcohol-producing bacteria, and the products resulting therefrom : en
  • FR51979E - Electric automatic adjustment device for any quantities to be adjusted by means of switches with swinging lever : en fr
  • USD135712S - Design fob an apron : en
  • GB553477A - Improvements in and relating to gas blast electric circuit breakers : en
  • GB553631A - Couplings for rods, bars, tubes, and the like, and the manufacture thereof : en
  • GB553563A - Process and apparatus for forming liquid-filled capsules : en
  • GB553576A - Improvements in or relating to moving stairways : en
  • DE735813C - Process for the electro-oligodynamic activation of fluids : de en
  • FR882275A - Large typefaces for poster printing : en fr
  • CA412803A - Chiming mechanism for bells or tuned metallic tubes : en fr
  • DE735750C - Method of heating a glass furnace : de en
  • US2320310A - Apparatus for integrating time and temperature : en
  • US2319888A - Ophthalmic instrument : en
  • FR51978E - Marine water tube boiler : en fr
  • GB553547A - Improvements relating to draw bench gripper carriages : en
  • US2319866A - Gas range burner : en
  • US2320211A - Pressure relief device for low pressure vessels : en
  • CA412791A - Shirt folding method : en fr
  • US2320167A - Cigarette package and match book holder : en
  • GB553554A - Improvements in or relating to propeller pitch changing mechanism : en
  • FR51922E - Composite shoe sole : en fr
  • DE735754C - Device for extinguishing burning gases escaping from pipelines : de en
  • DE735875C - Binding mower with conveyor rollers : de en
  • FR51870E - Coupling device in particular for internal combustion engine starters : en fr
  • FR51932E - Coating used to obtain satisfactory adhesion between construction parts and plastic masses to be applied when hot : en fr
  • FR882260A - Process for preparing superpolyamides : en fr
  • GB553570A - Improved coupling for hollow articles, hoses and the like : en
  • DE735692C - Method for the preparation of pancreatic lipase preparations : de en
  • GB553518A - Improvements in or relating to means for indicating and measuring vibrations in powered mechanical units : en
  • US2319967A - Airship : en
  • US2320081A - Telephone system : en
  • GB553581A - Improvements in printing mechanism for machine compiling statistics from record sheets : en
  • DE735745C - Number switch for coin operated telephones : de en
  • FR51997E - Method and apparatus for making crimped or corrugated glass fibers : en fr
  • GB553597A - Improvements in and relating to methods of and apparatus for preventing the formation of ice on aircraft propellers : en
  • US2320253A - Process for the production of formaldehyde : en
  • US2320126A - Preparation op coating compound : en
  • US2320180A - Folding boat : en
  • US2320309A - Sewer cleaning mechanism : en
  • USD135733S - Design for a luminaire : en
  • GR10088B - FULL RANGE OF PARIS GREEN MIXING MACHINES. : el en
  • FR882272A - Small double breaker circuit breaker : en fr
  • US2319908A - Container filling and weighing apparatus : en
  • US2320012A - Carburetor : en
  • US2320095A - Method and apparatus for indicating dissolved oxygen in aqueous liquids : en
  • DE735837C - Schnellschuetz : de en
  • US2319886A - Method and composition for producing crystalline coatings : en
  • FR51986E - Device usable on board airplanes for heating, flame attenuation and use of reaction : en fr
  • US2320125A - Heat saving shield for windows : en
  • US2320014A - Strap lock : en
  • FR51869E - Progressive speed variator : en fr
  • GB553545A - Improvements in or relating to the impregnation of organic fibrous materials with polystyrene : en
  • GB553616A - Improvements in or relating to poppet and like valves particularly for engines and pumps : en
  • US2320247A - Episcopic projector : en
  • CA412766A - Phosphoric acid derivative of bactericidal compounds : en fr
  • GB553507A - Improvements in and relating to colour forming developers and processes of colour development : en
  • GB553497A - Improvements in or relating to the manufacture of paint : en
  • FR882273A - Disc brakes for rail vehicles : en fr
  • US2320046A - Trailer hitch : en
  • US2319796A - Apparatus for forming characters and designs on silver-plated flatware : en
  • USRE22326E - Refrigeration apparatus : en
  • CA412736A - Electrical inductive apparatus : en fr
  • CA412814A - Self-locking fastener : en fr
  • CA412668A - Razor blade holder for stropping : en fr
  • CA412807A - Synthetic material article manufacture : en fr
  • US2320077A - Ant poison container : en
  • US2320056A - Pole cutting machine : en
  • US2319844A - Fuel container : en
  • US2320260A - Columbium-bearing austenitic steel and articles produced therefrom : en
  • US2319964A - Hydraulic press : en
  • USD135723S - Design for a flower holder : en
  • DE735710C - Protection device against current overload from resistance welding systems fed via gas discharge lines : de en
  • US2319868A - Control unit : en
  • US2320106A - Purification of oil : en
  • GB553506A - Improvements in and relating to colour forming developers and processes of colour development : en
  • DE735806C - Vehicle wheel suspension, especially for motor vehicles : de en
  • US2320157A - Catheter : en
  • CA412721A - Electrical apparatus winding : en fr
  • DE735820C - Inlet regulator with return steam sensor for steam circulation heating, especially in railroad cars : de en
  • US2320326A - Manufacture of heat sealed bags : en
  • FR51929E - Manufacturing process for molded parts in hard materials : en fr
  • FR51868E - Process of carbonization of wood in a vacuum : en fr
  • GB553520A - Method of and apparatus for the manufacture of electrodes for apparatus for the electrical precipitation of suspended particles from gaseous fluids : en
  • US2319867A - Fluid dispensing device : en
  • US2320258A - Switching mechanism : en
  • GB553482A - Improvements relating to means for packing the rotors of rotary engines and the like : en
  • US2320019A - Crawler drive mechanism : en
  • FR882274A - Lampholder with device for securing a multiple-plug-base discharge lamp, preventing it from coming out of the socket under the effect of jolting, when placed in it : en fr
  • US2319930A - Overalls and other garments : en
  • US2319951A - Thermoplastic lignocellulosic product and method of making the same : en
  • DE735695C - Process for the production of water-soluble compounds of 4-aminobenzene sulfonamides : de en
  • FR882277A - Scope piece with great bearing power : en fr
  • US2319879A - Shoe and its method of manufacture : en
  • FR882280A - Advanced training in electromagnetic audible warning devices : en fr
  • DE734593C - Rotary fluid flow meter, preferably for milk and the like like foaming liquids : de en
  • DE735718C - Drilling device in which the inserted workpiece is clamped by a cover that supports the drilling plate with the drill bushes : de en
  • US2319946A - Selector mechanism for automatic phonographs : en
  • US2320227A - Sorting apparatus : en
  • US2319798A - Interpolymers of an unsaturated alkyd resin and a poly-(halogenoallyl) ester : en
  • AU116965B2 - Improvements in fire grates : en
  • FR51933E - Electrical connection device : en fr
  • US2320049A - Machine for flanging can bodies having solderless side seams : en
  • US2320201A - Electrical conductor : en
  • US2319809A - Process for making and treating textiles and the products produced : en
  • US2320319A - Oleaginous material : en
  • US2320057A - Tractor mower : en
  • FR51995E - Rotor vane for exhaust gas turbines : en fr
  • FR882269A - Device improving sound reproduction in loudspeaker installations : en fr
  • FR51967E - Improvements to rotary compressors : en fr
  • FR882281A - Improvement in ovens of the siemens-martin type : en fr
  • GB553624A - Improvements relating to apparatus for gauging metal-cutting taps or the like : en
  • DE735825C - Formation of the bearing goniometer used in patent 706538 : de en
  • GB553592A - Improvement in mechanism for opening and closing propeller vanes at any point desired in their revolution : en
  • GB553525A - Improvements relating to change gears to facilitate accurate setting where high precision indexing is required : en
  • FR882285A - Steel for aircraft construction : en fr
  • DK60940C - Boiler for Absorption refrigeration machines. : da en
  • FR51901E - Universal machine for kitchen operations : en fr
  • FR51951E - Process and devices ensuring better design and better use of gasifiers : en fr
  • GB553529A - Improvements in electron discharge devices for generating polyphase high frequency oscillations : en
  • FR51906E - Manufacturing process of clad tubes, in particular copper clad steel tubes : en fr
  • US2319878A - Refrigerating apparatus : en
  • US2320118A - Hydrocarbon conversion and catalyst therefor : en
  • US2320229A - Milking apparatus : en
  • US2320161A - Car floor surfacing device : en
  • FR51904E - Device to allow visibility in fog, in particular for the night movement of a vehicle : en fr
  • US2319814A - Gas and liquid contact apparatus : en
  • GB553500A - Process for the production of dried soups : en
  • US2319949A - Road joint rope seal : en
  • CA412787A - Measuring instrument : en fr
  • DE735795C - Procedure for measuring the tendency to vapor lock gasoline and other low-boiling fuels : de en
  • GB553551A - Improvements in or relating to sliding clasp fasteners : en
  • DE735821C - Transition cladding for coupled vehicles, especially railway vehicles : de en
  • US2319936A - Fender scuff plate : en
  • DK60947C - Front window. : da en
  • US2320091A - Price computing and indicating mechanism : en
  • GB553480A - Operating mechanisms for electric switches : en
  • US2319956A - Packaging process cheese and the like : en
  • US2319991A - Production of solvents : en
  • US2320230A - Washing machine : en
  • GB553539A - Improvements in or relating to viscous solutions of vegetable globulins : en
  • CA412810A - Rock drill : en fr
  • US2319906A - Contact mechanism for electric switches : en
  • US2320111A - Life preserver and distress signal : en
  • US2320298A - Panic bolt : en
  • US2319839A - Recoil-operated machine gun fire control mechanism : en
  • US2319929A - Treating natural oils and fats : en
  • FR51972E - Switchable current limiter with delayed overcurrent trip and short circuit trip : en fr
  • FR51936E - New fuel : en fr
  • GB553475A - Improvements relating to heat-loss measuring apparatus serving as external regulators for automatically controlled heating installations : en
  • US2319891A - Calculating apparatus : en
  • US2320092A - Machine for making adhesive pads : en
  • FR882266A - Uniform film feed device : en fr
  • FR882282A - Apparatus for the distillation and concentration of liquids by using the heat released by the vapors which condense : en fr
  • DE735867C - Process for the preparation of p, p'-dioxy-3, 4-diphenylhexane with a melting point of 185íÒ or its alkyl ethers and esters : de en
  • FR882290A - Optical system comprising a corrective element making it possible, for example, to eliminate the aberration : en fr
  • DE735778C - Switching arrangement, consisting of transformer and switching reactor : de en
  • DE735856C - Lateral sealing device for sinking rollers : de en
  • FR51879E - Mower-binder frame : en fr
  • FR51887E - Process for the preparation of saturated or unsaturated androstanolones, substituted n position 17, and their derivatives : en fr
  • US2319779A - Slenderizing, non-ride-up garment : en
  • AU480542A - An improved nonskid assembly for detachably securing around motor vehicle tyre : en
  • CA412702A - Paper drier felt : en fr
  • FR882300A - Electrical cable without lead sheath : en fr
  • FR51897E - Mounting to adapt an antenna to a transmitter : en fr
  • CA412750A - Butane processing with chlorine : en fr
  • CA412671A - Fish stringer slide lock : en fr
  • CA412781A - Rosin polymerizing method : en fr
  • AU116972B2 - Process of preparing sodium thiosulphate from spent iron oxide and regenerating the latter : en
  • US2320139A - Flexible abrasive article : en
  • FR51881E - Method and device for the electrolysis of solutions containing alkali salts : en fr
  • FR51857E - Backhoe device for cleaning beets and other substances : en fr
  • GB553601A - Process for obtaining sulphonamide derivatives : en
  • DE735784C - Procedure for signaling and remote control in power networks : de en
  • FR51918E - Improvements to discharge tubes : en fr
  • DK60951C - Hanging bowl for potted plants or cut flowers. : da en
  • GB553598A - Improvements relating to the sulphonation of aliphatic and aromatic compounds : en
  • US2319811A - Cathode ray tube : en
  • FR51863E - Ultra-shortwave devices : en fr
  • FR882264A - Fixing on base base for support tube of electric table lamps : en fr
  • US2320212A - Ring traveler : en
  • US2319780A - Laminated mica : en
  • CA412749A - Mould coating method : en fr
  • CA412687A - Flatiron stand : en fr
  • US2319880A - Steering gear : en
  • USD135714S - Design for a jacket : en
  • DE735773C - Device for high-frequency communication on lines : de en
  • DE735723C - Process for surface decoration by means of water-swellable glue paint pictures : de en
  • US2320196A - Tunneling machine : en
  • US2319828A - Wire uncoiling apparatus : en
  • US2319985A - Drum cleaning machine : en
  • DE735855C - Streamlined rear engine vehicle : de en
  • FR51886E - Aminoplastic condensation products : en fr
  • US2319799A - Interpolymers of an unsaturated alkyd resin and a poly-(1-halogenoallyl) ester : en
  • US2320249A - Ironing pad : en
  • CA412697A - Railway car truck : en fr
  • US2320029A - 9, 9-di-(gamma-aminopropyl)-fluorene : en
  • CA412741A - Molten glass feeder : en fr
  • CA412752A - Liquid fuel container : en fr
  • CA412738A - Abrasive article : en fr
  • GB553617A - Improvements connected with the bearings of rolling mills, mixers, calenders, or like apparatus for acting on rubber or like mixes or masses : en
  • CA412805A - Hair treating device : en fr
  • CA412737A - Composite textile material : en fr
  • US2320051A - Automatic disconnector apparatus : en
  • US2320168A - Tractor : en
  • US2320226A - Clothes wringer structure : en
  • US2319960A - Process for producing halogenated cresols : en
  • US2320047A - Method of desulphurizing oils : en
  • US2319988A - Production of solvents : en
  • US2320109A - Production of photographic color images : en
  • US2319834A - Process for treating textiles : en
  • FR51947E - Process for preparing unsaturated organic amino compounds : en fr
  • AU543342A - Improvements in and relating to control knobs for radio and like equipment : en
  • CA412743A - Portable engine-driven pump : en fr
  • FR51888E - Operating process for metallurgical melting furnaces heated by gas and provided with regenerators : en fr
  • FR882262A - Removable wooden packing box : en fr
  • DE735798C - Two-stroke internal combustion engine with external ignition and crankcase mixed pump : de en
  • DK60942C - Electric Pocket or Hand Signal Lamp with Reflector and Flat Housing. : da en
  • DE735788C - Cooling device for oil transformers : de en
  • GB553566A - Improvements in methods of colour photography : en
  • US2320001A - Floor structure for railroad cars : en
  • US2320228A - Lubricant : en
  • FR51982E - Process for preparing condensation products : en fr
  • GB553528A - Improvements in and relating to sheet metal cores or reinforcements for fibrous sheets : en
  • IE17654L - Anti-freeze composition : en
  • FR882268A - Starting device for aerial towing cable installations : en fr
  • GB553504A - Improvements in mufflers for the exhaust of aircraft and other engines : en
  • US2319974A - Container : en
  • CA412665A - Hardness tester : en fr
  • CA412813A - Metallurgy : en fr
  • GR10091B - METHOD AND ARRANGEMENT OF DRAINAGE OF SWAMPS AND MOUNTAINS. : el en
  • USRE22323E - Mechanical poultry picker : en
  • GB553575A - Improvements in and relating to internal combustion engines : en
  • DE735507C - Method and device for producing the edge seams of workpieces attached to the circumference of a turntable : de en
  • US2320116A - Power transmission mechanism : en
  • FR51981E - Heat exchangers such as recuperator and aerocalorifer : en fr
  • US2319965A - Variable frequency bridge stabilized oscillator : en
  • DE735823C - Barrier drive with movement of the barrier from two different points : de en
  • US2320276A - Slide drawer construction : en
  • DK60938C - Process for the Preparation of Dihydro Derivatives of the Sympaticolytically Active, Natural and Synthetic Secale Alkaloids. : da en
  • CA412748A - Mould coating method : en fr
  • US2319807A - Tower unit for concrete mixers and the like : en
  • FR51968E - Process for sizing textile fibers : en fr
  • DE735874C - Harvester : de en
  • FR882258A - Agents for improving fibrous materials : en fr
  • FR882271A - Improvements in vulcanization processes : en fr
  • DE735721C - Photographic and cinematographic film : de en
  • DE735753C - Hand-operated bag sewing machine : de en
  • FR51984E - Electronic relay : en fr
  • GB553467A - Manufacture of organic sulphonyl halides : en
  • FR882288A - Mechanism for sewing machines to sew hooks or eyelets : en fr
  • FR51988E - Improvements to card assortments : en fr
  • US2319865A - Device for spraying loose material : en
  • GR10089B - ADVERTISING MEANS AND FUN GAME. : el en
  • FR51980E - Device for treating metal workpieces with delicate surface in a working bath and in a complementary treatment bath following the previous one : en fr
  • US2320281A - Process for cleaning rugs : en
  • FR51899E - Improvements to transformers for anode modulation (class b) of transmitters and in particular high power transmitters : en fr
  • GB553515A - Improvements in or relating to holding devices for reamers, boring heads or like rotary tools : en
  • FR51889E - Letterpress composition process on matrix for printing on duplicator or other machine : en fr
  • US2319978A - Road vehicle mounting : en
  • DE735722C - Lock with latch held back in the open position : de en
  • DK60944C - Electron tubes, especially for ultra-high Frequency. : da en
  • US2320094A - Apparatus for handling material : en
  • GB553514A - Improvements in and relating to spring fillings for seat cushions, upholstery cushions, mattresses or the like : en
  • US2320043A - Radio tube holder and extractor : en
  • US2320255A - Coating method and material : en
  • US2320318A - Method for catalytic conversion : en
  • US2319986A - Fork : en
  • DE735772C - Inlet regulator with return steam sensor for steam circulation heating, especially in railroad cars : de en
  • FR51867E - Additional air intake operating under the action of the flow of a fuel gas and its applications to supplying engines with all gaseous fuels : en fr
  • GB553596A - Inductance devices : en
  • GB553628A - Improvements in mixing or agitating devices : en
  • FR51895E - Wadding for dressings and other similar applications : en fr
  • CA412753A - Diesel engine fuel control system : en fr
  • DE735752C - Vertical turning and boring mill : de en
  • DE735758C - Drying device : de en
  • DE735802C - Device for changing the transmission ratio by means of a control gear for blueprint devices : de en
  • FR882253A - Device for automatic recording of maneuvers of marine machinery : en fr
  • US2320184A - Game board : en
  • US2320088A - Water-alcohol solution of amino acid-diamine-dibasic acid interpolymers : en
  • US2320141A - Plow hitch : en
  • US2319800A - Means and method for improving the quality of paper : en
  • US2320282A - Diagnostic compositions for aminoarylsulphonamides : en
  • US2320024A - Cultivator tool : en
  • US2320273A - Regeneration of solid contact material : en
  • FR51865E - Aircraft powertrain : en fr
  • GB553543A - Improvements in or relating to the weaving of closely woven fabrics : en
  • US2319927A - Suction nozzle : en
  • DE735869C - Socket, in particular between multiple and coupling socket : de en
  • US2320003A - Curtain hanger : en
  • US2319845A - Instrument casing : en
  • GB553562A - Improvements in the lubrication of textile fibres and/or textile processing machinery : en
  • GB553555A - Improvements in devices for preventing colliery tubs or the like from running backwardly : en
  • SE107467C1 - : sv
  • US2320176A - Reversible single phase motor : en
  • DE735761C - Circular loom : de en
  • DK60934C - Procedure for Making Vinegar from Potatoes. : da en
  • DE735850C - Two-wheeled multi-purpose vehicle for children : de en
  • DE735720C - Machine for applying glue : de en
  • DE735797C - Self-seller for electricity or the like with basic fee collection : de en
  • FR882294A - Method and device for peeling potato tops : en fr
  • US2319926A - Cracking of light petroleum stocks : en
  • US2320112A - Storage of supercooled normally crystalline polymeric material : en
  • FR51989E - Method and device for increasing the efficiency of tank furnaces, in particular blast furnaces : en fr
  • DE735848C - Carburetors for internal combustion engines : de en
  • GB553623A - A new or improved locating pin for temporarily holding metal or other sheets together : en
  • CA412778A - Combustion apparatus : en fr
  • US2319815A - Razor : en
  • CA412692A - Plant growth regulating composition : en fr
  • CA412714A - Homogeneous solution substance recovery : en fr
  • CA412698A - Electrodeposited metal sheet stripping method and apparatus : en fr
  • FR51852E - Vegetable or fruit dryer : en fr
  • FR51854E - New ink supply duct for stylograph : en fr
  • GB553591A - Improvements in apparatus for reading off graphically the vacuity of a cask of liquor : en
  • AU116986B2 - Rock drills : en
  • US2319882A - Photocopy machine : en
  • US2320073A - Bubble deck : en
  • USRE22327E - Disk harrow : en
  • CA412675A - Portable electric drill : en fr
  • CA412682A - Friction clutch : en fr
  • CA412685A - Leather grading apparatus : en fr
  • US2319912A - Electrical discharge device : en
  • CA412742A - Trailer pump for fire-fighting : en fr
  • CA412761A - Stable oleoresin red pepper extract : en fr
  • US2320294A - Sulphite process : en
  • US2319825A - Metal container side seam packing strip applying apparatus : en
  • US2319892A - Coupling for rods or shafts : en
  • DE735739C - Dough tray : de en
  • DE735764C - Mold for air-cooled rib cylinders : de en
  • FR51898E - Fuels for internal combustion engines : en fr
  • CA412735A - Air cooled and air insulated transformer : en fr
  • US2320035A - Refrigerating apparatus : en
  • US2320208A - Contact amplifier : en
  • DE735807C - Dust seal for brake cylinders, especially for road vehicles : de en
  • DE735724C - Method of manufacturing bearings : de en
  • FR882284A - Process for brazing metal envelopes surrounding ceramic insulating parts : en fr
  • GB553603A - Improvements in or relating to hydraulic control mechanism : en
  • DK60931C - Flotation machine. : da en
  • GB553600A - Process for the preservation of meat : en
  • US2320140A - Lubrication : en
  • US2320221A - Shock absorber : en
  • US2320301A - Preparation of a urea-formaldehyde adhesive : en
  • USD135738S - Design for a book cover : en
  • US2320163A - Fusion welding : en
  • GB553579A - Improvements in or relating to double sided presses for sheet metal : en
  • GB553537A - Improvements relating to signalling lamps : en
  • US2319966A - Molded pulf article : en
  • US2320034A - Method of preparing halogenated carboxylic acid esters : en
  • US2320155A - Electrical connection : en
  • US2320252A - Thermostatic protective circuit : en
  • US2320090A - Diacyl acrylamide and its : en
  • US2320241A - Lubricating oil composition : en
  • DE735838C - Multipole electromagnetically operated contactor with short-circuit release : de en
  • FR882255A - Improvements to fixing devices for bung sockets for metal containers : en fr
  • FR882259A - Process for producing utility objects : en fr
  • US2320197A - Line support : en
  • USD135726S - Design fob a watertight bag : en
  • US2319933A - Process of making adhesive tapes : en
  • US2319990A - Production of solvents : en
  • DE735782C - Test circuit for alternating current short-time switching devices : de en
  • DE735716C - Machine tool, in particular radial drilling machine, with memory in the pressure medium circulation : de en
  • US2320217A - Ketonic polycarboxylic acids : en
  • US2320331A - Resilient tire : en
  • US2319953A - Heat stabilizer for polymers of : en
  • US2319958A - Sleeping bag : en
  • DE735787C - Method for applying winding cores to coils or windings of transformers, chokes, converters o. : de en
  • US2320192A - Top center indicator for pistons : en
  • AU540842A - Improvements in or relating to extrusion apparatus : en
  • DK60937C - Clothes dryer. : da en
  • DE735803C - Regulator for maintaining pressure in height chambers : de en
  • FR51913E - Device for driving the yarn guide bars on straight-line picking hosiery looms : en fr
  • GB553560A - Improvements in the production of plastics having a paper base : en
  • US2320306A - Ironer : en
  • DE735765C - Air intake line for aircraft internal combustion engines : de en
  • GB553569A - Gaseous insulating dielectric : en
  • GB553621A - Improvements in conrolling apparatus for the displaceable elements of water gas manufacturing plant and other plant involving cyclic changes : en
  • GB553511A - Improvements in and relating to electric motor control systems : en
  • GB553605A - Improvements in gas-fired apparatus : en
  • GB553549A - Improvements relating to draw bench gripper carriages : en
  • US2320066A - Self-balancing circuit mechanism : en
  • US2320150A - Code selective apparatus : en
  • FR882287A - Linoxin substitutes : en fr
  • CA412667A - Container : en fr
  • GR10092B - METHOD AND ARRANGEMENT FOR THE INCREASE OF THE WORK DISSOLUTION OF THE AGRICULTURAL MACHINERY OF THE SOIL, PREFERRED BY THE PILLERS. : el en
  • USD135732S - Design for a radiator valve : en
  • FR882276A - Automatic regulating transformer : en fr
  • DE735747C - Voltage-dependent measuring bridge for measuring electrical quantities : de en
  • FR51976E - Process for the preparation of photographic prints : en fr
  • CA412783A - Titanium bearing material chlorination : en fr
  • US2320269A - Textile printing machine : en
  • CA412673A - Vacuum bottle cork : en fr
  • USD135724S - Post hole digging attachment : en
  • US2319840A - Compound hoist : en
  • CA412759A - High pressure tube joint : en fr
  • US2320017A - Apparatus for preventing the accumulation of ice : en
  • US2320286A - Brake construction and adjusting means therefor : en
  • DE728573C - Boat launching device : de en
  • DE735808C - Switching device for illuminated direction indicators : de en
  • US2319786A - Bumper switch unit for ball rolling games : en
  • US2320224A - Rectifier circuit : en
  • US2320250A - Full fashioned stocking and manufacture thereof : en
  • US2320100A - Platen printing press : en
  • DE735818C - Deep drilling device : de en
  • AU516842A - Improvements in fire grates : en
  • US2319973A - Saw attachment for electric drills : en
  • US2319976A - Dehydroabietinal and method of producing : en
  • US2320123A - Protection of alternating current electric systems : en
  • US2319776A - Rotary pump : en
  • AU116989B2 - Improvements in vacuum break milking machines : en
  • US2320006A - Container : en
  • FR51999E - Method and device for annealing and heat treatment of sheets : en fr
  • AU116971B2 - Improvements relating to pipes and like hollow bodies : en
  • DK60945C - Procedure in the Manufacture of Dentures. : da en
  • CA412706A - Electrical measurement and control system : en fr
  • CA412775A - Welding electrode : en fr
  • US2319801A - Duplex convenience outlet : en
  • US2320183A - Orthopedic device : en
  • US2320328A - Application of spray metal to metal surfaced substantially cylindrical objects : en
  • US2320084A - Can holder and dispenser : en
  • CA412730A - High voltage rectifier : en fr
  • US2319833A - Leather grading machine : en
  • US2319887A - Hydrometallurgical process for the recovery of tin : en
  • US2320086A - Railway truck and brake mechanism therefor : en
  • CA412686A - Floor or wall safe : en fr
  • US2320131A - Piezoelectric crystal apparatus : en
  • US2320321A - Welt type shoe : en
  • FR51890E - Lantern for signaling road construction sites, blocked streets, trenches, obstacles or wrecks : en fr
  • USRE22321E - Electrical musical instrument : en
  • GB553473A - Improvements in apparatus for condensing webs of staple fibre : en
  • FR51975E - Process for preparing olefins and diolefins from paraffins and olefins : en fr
  • DE735713C - Burners for gas turbine plants : de en
  • DE735805C - Steering device for a caterpillar vehicle : de en
  • US2320300A - Doll eye : en
  • GB553466A - Improvements in or relating to cathode-ray tubes : en
  • US2320325A - Indexing device for wringers : en
  • FR51935E - Improvements in equipment for feeding and priming discharge tubes : en fr
  • CA412718A - Thermal switch : en fr
  • AU508842A - Improvements in vacuum break milking machines : en
  • CA412808A - Bobbin cleaning apparatus : en fr
  • FR51920E - Condensation products and process for preparing these products : en fr
  • GB553542A - Improvements in or appertaining to riveting hammers : en
  • US2319871A - Eraser guard : en
  • US2320322A - Process osi separating : en
  • FR51949E - Method and device for fixing conductor cables in lugs : en fr
  • DE726336C - Method and device for the production of hollow bricks from lightweight building materials : de en
  • DK60946C - Duvet and Blanket Holder. : da en
  • FR51878E - Knurling machine : en fr
  • US2319920A - Railway truck pedestal structure : en
  • FR51969E - Pupinized remote transmission cable and more especially submarine cable : en fr
  • GB553512A - Manufacture of dioxyacetone ether esters : en
  • DE735857C - Ship's hoist with diving shaft : de en
  • FR51871E - Hydraulic device for raising and lowering tillage implements pulled by a tractor : en fr
  • GB553556A - Improvements in devices for preventing colliery tubs or the like from running backwardly : en
  • DE735735C - Continuous casting device with several continuous casting molds arranged next to one another for the simultaneous casting of several metal bars : de en
  • US2319923A - Pad : en
  • FR51953E - Automatic device for regulating the feed water of steam boilers : en fr
  • GB553505A - Improvements in unit air heaters : en
  • FR51950E - Mixer for gaseous fuels : en fr
  • DE735746C - Process for converting a given voltage into a voltage with a different, but freely selectable curve shape using gas or vapor discharge paths : de en
  • GB553561A - Production of plastics having a paper base : en
  • US2320027A - Bed rack : en
  • US2320222A - Swimmer's appliance : en
  • USD135717S - Design for a toy airplane : en
  • USD135718S - Design for a toy airplane : en
  • US2319856A - Rotary pump : en
  • US2319924A - Complete stickless stapleless chick box : en
  • US2319934A - Electric fuel pump : en
  • US2319995A - Overload working method for thermal power plants : en
  • GB553531A - Improvements in acetylation of hydroxy esters : en
  • FR51851E - Process for preparing sulfonamides : en fr
  • US2319778A - Apparatus for making flame coloring sticks : en
  • GB553572A - Improvements in or relating to variable ratio transmission mechanism : en
  • AU359241A - Rock drills : en
  • FR51853E - Chargers for portable electric lights : en fr
  • GB553494A - An improved machine for the manufacture of circular saws : en
  • US2320173A - Fire hose washer : en
  • US2320218A - Viscosimeter : en
  • DE735849C - Pump with a valve piston : de en
  • US2319829A - Needle holder : en
  • FR51990E - Improvements made to locking nut devices : en fr
  • GB553493A - Improvements in locking nuts : en
  • DE735863C - Cinematographic combination process : de en
  • US2320263A - Soluble cutting oil : en
  • DK60952C - Injection nozzle for Combustion power machines. : da en
  • DE735704C - Power collection and transmission device : de en
  • DE735858C - Drill for thawing frozen ground : de en
  • US2320274A - Conversion of normally gaseous hydrocarbons : en
  • FR51939E - Advanced formwork device : en fr
  • FR882254A - Improvements to the methods of fixing waste nozzles for metal containers : en fr
  • FR51927E - Process for the preparation of phenols : en fr
  • DE735599C - Circuit arrangement for company lines in telecommunications systems, especially telephone systems : de en
  • DE735780C - Arc extinguishing device : de en
  • US2319918A - Rubber hydrochloride film : en
  • US2320009A - Inorganic plastic product and process of preparing the same : en
  • DE735732C - Piezoelectric oscillator oscillating transversely to the direction of the electric field : de en
  • GB553558A - Improvements in or relating to cameras : en
  • DE735814C - Table leg attachment : de en
  • GB553508A - Improvements in and relating to the development of photographic prints : en
  • DE735738C - Process for the production of blueprint copies over a reflex negative : de en
  • US2320151A - Rotary advertising display device : en
  • CA412731A - Electrical induction apparatus : en fr
  • US2320089A - Acyl acrylamide and its preparation : en
  • US2320327A - Application of spray metal to metal surfaces : en
  • CA412728A - Aerial system : en fr
  • DE735726C - Process for the production of tar and solid coke : de en
  • GB553568A - Improvements in and relating to alumino-thermic and like processes and crucibles therefor : en
  • US2320069A - Double glazed sash and fastening means therefor : en
  • US2320124A - Radio receiver for horizontally polarized waves : en
  • US2319968A - Apparatus for preventing the accumulation of ice : en
  • FR51909E - Improvements in dielectric materials : en fr
  • GB553594A - Improvements in or relating to the formation of a profile on an article in a lathe, milling machine or similar machine : en
  • DK60954C - Self-charging rifle. : da en
  • US2320114A - Boiler construction : en
  • DE735827C - Circuit arrangement for the goniometer used in the Adcock system according to patent 706538 : de en
  • GB553486A - Turbine engines : en
  • US2319794A - Abrasive : en
  • GB553567A - Improvements relating to stock feed devices for lathes or other machine tools : en
  • US2320179A - Sphygmomanometer cuff or band : en
  • US2320134A - Harvester : en
  • DK60943C - Socket and Base for two-socket electric fluorescent lamps. : da en
  • US2319883A - Water soluble adhesive : en
  • DK60941C - Tuning Indicator for Radio Receivers. : da en
  • DE735819C - Device for transferring metal blocks from the horizontal to the vertical for feeding stationary presses : de en
  • US2320083A - Wrench : en
  • US2320185A - Photoelectric cell : en
  • CA412720A - Thermal switch : en fr
  • US2319797A - Fastening-supplying apparatus : en
  • DE735824C - Arrangement for determining the side of a DF system : de en
  • FR51992E - Device for adjusting the lighting circuits of stages and similar installations : en fr
  • DE735762C - Interchangeable winch for switching the heating medium reversing devices from regeneratively heated coking ovens arranged in batteries : de en
  • US2320266A - Treating corrosive oils : en
  • US2320143A - Package : en
  • FR51943E - Scale plow : en fr
  • DE735810C - Method and device for burning cement and similar goods in suspension : de en
  • GB553485A - Improvements relating to tubular heat exchangers : en
  • US2319858A - Method and means for controlling combustion engines : en
  • US2320312A - Thickened oil : en
  • US2319922A - Apparatus and method for producing one-piece multifocal lens blanks and lenses : en
  • US2320166A - Case to hold toilet articles : en
  • CA412788A - Measuring instrument : en fr
  • US2319962A - Method of and means for treating and/or dehydrating oil, gas, and water mixtures, such as flow from oil wells : en
  • US2319791A - Abrasives : en
  • US2320175A - System for testing resonant networks : en
  • DE735865C - Coke oven door with leveling opening : de en
  • US2320040A - Steel product and method for the manufacture thereof : en
  • US2319789A - Television : en
  • US2319877A - Sectional shelving : en
  • USRE22320E - Material fob shoe stiffenees : en
  • US2319817A - Metal coating machine : en
  • FR51876E - Repeater for transmission systems on overhead bare wires using high frequency power lines : en fr
  • US2320137A - Rotary drill bit : en
  • DE735523C - Power output stage with one or more tubes : de en
  • CA412779A - Combustion apparatus : en fr
  • US2320308A - Curtain hook and installation : en
  • BE446440A - : en
  • US2319948A - Catalytic process of treating hydrocarbons : en
  • US2320220A - Engine starter drive : en
  • US2320023A - Torque measuring wrench : en
  • US2320170A - Cushion mounting for electrical apparatus : en
  • US2319935A - Automatic stoker : en
  • US2320219A - Viscosimeter : en
  • DE735632C - Radial blading for centrifugal machines, especially steam turbines : de en
  • US2320320A - Traction brake and driving mechanism : en
  • GB553496A - Improvements in or relating to washer-boxes for coal and other minerals : en
  • US2320284A - Catalytic conversion : en
  • FR882297A - V-shaped engine conrod bearing : en fr
  • DE735775C - Shift drum for electrical rotary switches with a centrifugal spring : de en
  • FR51977E - Metal for lead-based bearings with alkali and earth alkali content : en fr
  • US2319975A - Cup dispensing carton : en
  • US2320182A - Clutch control mechanism for motor vehicles : en
  • CA412670A - Traction device : en fr
  • US2319818A - Resilient insole : en
  • DE735708C - Tubes with glow cathode : de en
  • DE735790C - Multiple flashlight : de en
  • US2320279A - Detergent composition : en
  • US2320036A - Process of producing natural fruit juices and of eliminating cannery waste : en
  • US2320147A - Aromatization : en
  • CA412696A - Railway car draft gear : en fr
  • CA412729A - Liquid congealing apparatus treating process : en fr
  • US2319790A - Stove : en
  • DE735760C - Water supply pipe provided with an access opening, in particular headrace pipe of an underwater power station : de en
  • DE735749C - Dismountable gas chamber for disinfection, disinfestation and disinfection of objects of any kind : de en
  • CA412690A - Electric hand lantern : en fr
  • US2320039A - Automatic stocking means for bar machines : en
  • US2320008A - Solenoid operated valve : en
  • AU540342A - Crushing machinery : en
  • US2320025A - Calculating machine : en
  • GB553564A - Iodization of textile fabrics : en
  • US2320115A - Method and apparatus for removing the stresses from plastic sheeting : en
  • US2320202A - Musical instrument : en
  • GB553484A - Improvements in or relating to steam superheaters for locomotive boilers : en
  • GB553546A - Improvements in or relating to electric meters : en
  • US2320004A - Slack or cuttings removing device : en
  • AU116987B2 - Art of transportation by airplane : en
  • CA412756A - Grinding machine trimmer mechanism : en fr
  • CA412802A - Electric wave system : en fr
  • US2320042A - Tire filling means : en
  • US2320223A - Use of bauxite to improve the odor of petrolatum : en
  • GB553619A - Improvements relating to rotary engines : en
  • US2320333A - Gun boring tool : en
  • CA412763A - Printing plate preparation : en fr
  • DE735862C - Vessel closure, especially for preserving vessels : de en
  • US2320044A - Wrench : en
  • US2319804A - Television : en
  • GB553607A - Improvements relating to supporting arrangements for electric circuit conductors : en
  • DE735844C - Knee joint for artificial legs : de en
  • US2320231A - Renewable cartridge fuse : en
  • US2320207A - Unit heater : en
  • US2319850A - Cigarette holder : en
  • US2319943A - Pressure balanced plug valve : en
  • US2319783A - Method of making labels : en
  • US2320108A - Color photography : en
  • US2320135A - Corn picker : en
  • US2319861A - Cigarette extinguisher and ash tray : en
  • US2319925A - Automatic bowling alley mechanism : en
  • US2319897A - Vehicle door operating means : en
  • US2320055A - Refrigerating apparatus : en
  • US2319952A - Thermoplastic lignocellulosic product and method of making the same : en
  • US2320093A - Electrical busway : en
  • US2320127A - Treatment of hydrocarbons : en
  • US2320128A - Appliance for mixing and distributing liquid disinfectants or other fluids : en
  • CA412727A - Aerial system : en fr
  • USD135727S - Lathe apron : en
  • US2319937A - Switching contact : en
  • GB553626A - Improvements in the manufacture of metal tubes having sealed ends : en
  • CA412703A - Material handling and loading apparatus : en fr
  • US2319919A - Covered shipping and display box : en
  • US2319848A - Process for preparing branchedchain aliphatic secondary amines : en
  • US2320264A - Wire tensioning device : en
  • US2319907A - Blow-off valve : en
  • US2320018A - Folding box : en
  • USD135734S - Design foe a bag : en
  • US2319862A - Rotary steel rail base stop clip : en
  • US2320245A - Chick box lid : en
  • CA412739A - Abrasive article : en fr
  • US2320054A - Method and apparatus for treating pineapples : en
  • CA412713A - Solid mixture component extraction process : en fr
  • CA412774A - Copper base alloy : en fr
  • CA412722A - Lamp socket : en fr
  • US2320270A - Game : en
  • CA412672A - Electrical connector : en fr
  • CA412693A - Water flow or seepage impeding means : en fr
  • CA412809A - Train pipe connector : en fr
  • CA412726A - Electron multiplier circuit : en fr
  • DE735737C - Silencer, especially for exhaust pipes of internal combustion engines : de en
  • DE735853C - Vehicle suspension : de en
  • GB553491A - Improvements to an electric device for signalling the position of a movable mark : en
  • CA412776A - Welding electrode alloy : en fr
  • US2319795A - Automatic coal stoking machine : en
  • GB553532A - Improvements in and relating to electronic valve devices : en
  • DE735816C - Process for the production of phenolic resins : de en
  • US2319931A - Automobile wheel locking assembly : en
  • US2320122A - Draft gauge : en
  • US2320098A - Cosmetic coloring composition : en
  • DE735859C - Circuit arrangement for telegraph systems : de en
  • US2320210A - Motorcycle seat : en
  • CA412677A - Mirror light : en fr
  • FR51873E - Process for the production of color images : en fr
  • GB553580A - Improvements in or relating to chains with joint pins or the like : en
  • DE735791C - Device for the automatic control of steam-filled discharge vessels, which are equipped with control grids, depending on the spatial position of mechanically moved bodies : de en
  • US2320206A - Reaction method : en
  • US2320080A - Piezoelectric crystal element : en
  • GB553501A - A method of, and means for, producing oil from fish liver : en
  • CA412723A - Motor starter : en fr
  • GB553534A - Improvements in or relating to luminescent screens : en
  • FR51926E - Shortwave balancing device : en fr
  • USD135735S - Design for a dress : en
  • US2320254A - Switching mechanism : en
  • CA412777A - Electrical variable resistance device : en fr
  • FR51858E - Improvements to the squeegee conveyors and the squeegees mounted on them : en fr
  • CA412674A - Bottle neck : en fr
  • GB553499A - Improvements in and relating to electric controllers for winding gears for mines and the like : en
  • FR51910E - Automatic distributor and regulator device for compressed fluid brake systems for vehicles : en fr
  • GB553611A - Improvements in engine starter drive : en
  • FR51911E - Method for straightening and curling the pile of scraped fabrics and pile fabrics in general : en fr
  • US2319842A - Valve control : en
  • GB553550A - Means for correcting the shapes of metal tubes : en
  • DE735733C - Process for the production of a smooth floor wax : de en
  • DE735851C - Device for generator gas vehicles to remove deposited coal fire, coal dust or the like from the gas cleaning apparatus : de en
  • DK60950C - Matchbox case. : da en
  • FR51885E - Improvements to lamps for instant photographs : en fr
  • GB553481A - Improvements in and relating to starting switches for electric discharge lamps : en
  • USD135736S - Design for a woman s cap : en
  • US2319841A - Brush : en
  • US2320278A - Nontilting fifth wheel : en
  • FR51952E - Process and devices ensuring better design and better use of gasifiers : en fr
  • FR51919E - Flashlight improvements : en fr
  • FR882289A - Method for engaging a small rod in a hole in a wall and apparatus for its implementation : en fr
  • GB553522A - An improved stippler : en
  • US2319944A - Method of making printing members : en
  • US2320302A - Mechanical display device : en
  • US2319851A - Latch mechanism : en
  • US2320142A - Grinder machine for strip stock or the like : en
  • FR51893E - Preparation process for metal surfaces before electrolytic coating : en fr
  • DK60939C - Address printing plate. : da en
  • GB553487A - Improvements in carrier bags for cycles and the like : en
  • USD135737S - Design for a rupture pad : en
  • FR51925E - Interior upholstery : en fr
  • FR51963E - Non-return valve, especially for the suction line of a pump : en fr
  • US2319813A - Separation of polynuclear from mononuclear aromatics : en
  • FR51923E - Tubular saws for cutting cheese box rings : en fr
  • GB553498A - Improvements in clutch and/or brake mechanisms : en
  • CA412716A - Bolster friction spring : en fr
  • GB553559A - Improvements connected with devices for affixing tape, ribbon and like strips : en
  • DK60955C - Box. : da en
  • US2319902A - Therapeutic pressor composition and method of preparing it : en
  • CA412678A - Mineral oil processing : en fr
  • GB553608A - Improvements in or relating to bearing arrangements : en
  • FR51974E - Catalyst : en fr
  • DE735768C - Copier : de en
  • DE735832C - Electric circuit breaker : de en
  • FR51938E - Improved process for preparing gums or mucilages by treating algae : en fr
  • FR51862E - Ultra-shortwave devices : en fr
  • GB553483A - Improvements relating to pumps of the swash plate type : en
  • GB553620A - Improvements relating to automatic means for actuating parts of machine tools : en
  • DE735842C - Process for the manufacture of electric discharge tubes : de en
  • FR51902E - Fuels intended for the ignition of fireplaces and method and apparatus for obtaining them : en fr
  • GB553586A - Improvements in or relating to air preheaters for furnaces and the like : en
  • US2319843A - Engine cowling support : en
  • US2320289A - Carton : en
  • FR51856E - Equipment intended mainly for braking, by jaws or by bandages, wagons in marshalling yards : en fr
  • FR882263A - Camphene manufacturing process : en fr
  • CA412740A - Fibrous material production : en fr
  • DE735872C - Device for regulating a consumer connected to an inverter : de en
  • AU116990B2 - Improvements in or relating to extrusion apparatus : en
  • US2319963A - Manufally operated screw machine : en
  • US2319810A - Alternating switch : en
  • US2319893A - Derrick frame : en
  • US2320191A - Diaphragm pressure motor : en
  • US2319981A - Pump for concrete and the like : en
  • US2320203A - Musical instrument : en
  • FR51937E - Process for preparing branched diolefins : en fr
  • FR882286A - Improvements to devices for engaging or retaining and releasing dividers or separators for vertical type file cabinets : en fr
  • AU393441A - Art of transportation by airplane : en
  • US2319940A - Gravitational force measuring apparatus : en
  • US2320011A - Repeating mechanism : en
  • US2320015A - Disk harrow : en
  • FR51875E - Starting process for internal combustion engines : en fr
  • GB553530A - Methods and means of automatically controlling electron beam of electron beam valve devices : en
  • FR51908E - Adjustable band filter : en fr
  • DE735871C - (Sintered) commutator bar made of porous metal mass : de en
  • CA412680A - Overcoat : en fr
  • CA412666A - Table basketball receptacle : en fr
  • CA412689A - Wall covering : en fr
  • GB553492A - Improvements in apparatus for teaching : en
  • FR51955E - Dyes of the anthraquinone series and their preparation process : en fr
  • GB553630A - Improvements relating to thermostatic valves : en
  • GB553469A - Improvements in and relating to straight bar knitting machines : en
  • GB553489A - Mechanisms for operating electric switches : en
  • FR882256A - Automotive windshield wipers : en fr
  • DE735694C - Azeotropic entrainer for water : de en
  • DE735793C - Tripod head : de en
  • DE735846C - Ignition stone guide for iron lighters : de en
  • FR51866E - Sprayers for paints and all liquids, making it possible to paint one, two, three or four shades at a time and thereby obtain marbling or gradation : en fr
  • FR51900E - Device for temperature compensation of electrical quotient measuring instruments, in particular cross-coil devices : en fr
  • GB553519A - Improvements in soap flakes and in the manufacture thereof : en
  • FR51934E - Process for preparing synthetic tanning substances : en fr
  • CA412669A - Positive displacement pump : en fr
  • DE735783C - Time switch device for briefly switching on an electrical alternating current circuit : de en
  • FR51931E - Fuel injection device combined with an ignition device, in particular for preheating the intake air for internal combustion engines : en fr
  • GB553517A - Improvements in or relating to mold cores and molds : en
  • US2320158A - Leather belting : en
  • DE735731C - Discharge vessel with gas or vapor filling and arc discharge : de en
  • US2320033A - Filling nozzle with automatic shutoff : en
  • US2319819A - Liquefied gas vaporizer : en
  • DE735845C - Method for combating animal wood destroyers : de en
  • FR51859E - Accounting machine with calculation mechanisms that can be inserted into this machine : en fr
  • GB553523A - Improvements in or relating to detonation meters for internal combustion motors : en
  • GB553606A - Improvements in and relating to ring springs : en
  • US2319993A - Refrigerating apparatus : en
  • US2319860A - Radio aerial : en
  • US2320232A - Process of making 12-ketostearamide : en
  • US2320113A - Portable electric tool motor construction : en
  • US2320194A - Fluid flow control : en
  • GB553604A - Improvements in liquid-operated classifiers : en
  • US2320267A - Treating corrosive oils : en
  • US2320075A - Rangefinder for measuring and indicating the distance between two points : en
  • AU543942A - Improvements in regulatable output reciprocating pumps : en
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  • FR51883E - Fading and echo compensation method for the transmission of shortwave telegraph signals : en fr
  • GB553510A - Improvements in or relating to motor bicycles : en
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  • GB553589A - Improvements in or relating to oil or like coolers : en
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  • US2319830A - Liquid metering device : en
  • US2319984A - Photographic material and process for producing the same : en
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  • CA412768A - Finder for screw driving tools : en fr
  • DE735830C - Electric gas switch : de en
  • US2319994A - Process for refining and preserving citrus fruit juices : en
  • US2320028A - Converting photographic images into color : en
  • US2320313A - Cable structure : en
  • DE735727C - Process for the preparation of lactams from oximes of cyclic ketones : de en
  • US2319996A - Tool for applying armor to transmission line conductors : en
  • USD135730S - kaltreider : en
  • US2320205A - Apparatus for perforating sheet material : en
  • AU116991B2 - An improved nonskid assembly for detachably securing around motor vehicle tyre : en
  • US2320190A - Tire building apparatus : en
  • CA412811A - Electrolytic device : en fr
  • US2320236A - Polishing composition : en
  • DE735743C - Drive device for rotatable gap filter body : de en
  • US2320144A - Auxiliary ladder leg : en
  • US2320067A - Carrier for small game : en
  • US2320244A - Adjustable headgear connection for helmets : en
  • US2319869A - Windshield : en
  • US2320304A - Roaster : en
  • AU116970B2 - Improvements in or relating to inductance coils whose inductance canbe adjusted by means ofa core of magnetic material whichis slidable ina coil : en
  • CA412806A - Salt of alkyl acrylic acid : en fr
  • US2319785A - Cross roll apparatus : en
  • US2319980A - Safety razor : en
  • FR882278A - Inhaler device : en fr
  • FR882279A - Switch for electromagnetic audible warning devices : en fr
  • USD135728S - Design fob a chin strap : en
  • CA412755A - Glass filament fabricating apparatus : en fr
  • US2320246A - Apparatus for treating strands : en
  • US2319854A - Gravity davit : en
  • US2320101A - Expansible post binder : en
  • CA412758A - Check strap for looms : en fr
  • US2320076A - Selecting system : en
  • US2319872A - Receptacle for empty bottles : en
  • CA412786A - Electronic tube control circuit : en fr
  • DK60936C - Washing machine with removable centrifuge drum. : da en
  • GB553595A - Improvements in and relating to hair curlers : en
  • CA412709A - Rivet producing apparatus : en fr
  • AU116973B2 - Improvements in and relating to control knobs for radio and like equipment : en
  • FR51915E - Method for searching for line lengths or locating faults : en fr
  • FR882299A - Device for slaking lime and adaptation of this device for mixing mortar, concrete, etc. : en fr
  • GB553585A - Apparatus for controlling the production of inert atmospheres : en
  • CA412734A - Vapour electric device : en fr
  • US2320288A - Life raft : en
  • DE735831C - Switch with arc extinguishing by a flow of pressure medium : de en
  • FR51917E - Improvements in power transmission : en fr
  • CA412719A - Washing machine : en fr
  • AU543542A - Printing of textile fabrics : en
  • FR51970E - Process for refining the texture of magnesium and its alloys : en fr
  • CA412794A - Telephone selective switch : en fr
  • AU116984B2 - Crushing machinery : en
  • CA412762A - Morpholine compound : en fr
  • US2320022A - Means to accelerate setting of glue : en
  • US2320307A - Kerf cleaner or gummer : en
  • DE735770C - Process for evaporation of neutralized alkali : de en
  • US2319816A - Light polarizer and process of manufacture : en
  • US2319859A - Process and apparatus for the preparation of rubber compounds : en
  • US2320209A - Vehicle lamp : en
  • USD135731S - Compressor for a hydraulic brake unit or the like : en
  • FR882265A - Agricultural drying plant : en fr
  • US2319855A - Carrier and system for launching motor torpedo boats : en
  • US2320079A - Center sill turnover fixture : en
  • US2320290A - Integrating gradiometer : en
  • CA412746A - Metal body surface conditioning apparatus : en fr
  • DE735811C - Process for making textile goods crease-proof : de en
  • CA412795A - Signalling system : en fr
  • FR51957E - Lantern for signaling road construction sites, barréet streets, trenches, obstacles or wrecks : en fr
  • DE735860C - Extinguishing chamber switch : de en
  • DE735799C - V-belt speed change gearbox : de en
  • GB553541A - Improvements connected with devices for affixing tape, ribbon and like strips : en
  • US2320061A - Vegetable and fruit parer : en
  • US2320216A - Freight car : en
  • US2320021A - Counting mechanism actuator : en
  • US2320104A - Adapter for vent valves : en
  • FR51940E - Agglomerated or compressed, in particular of fuel and its manufacturing process : en fr
  • DE735847C - Lubrication for mixture-compressing two-stroke internal combustion engines : de en
  • GB553472A - Improvements in and relating to gas blast electric circuit breakers : en
  • US2319950A - Pneumatic-hydraulic pressure device : en
  • GB553615A - Improvements in and relating to liquid measuring and delivery apparatus : en
  • FR882295A - Process for producing high strength rayon from viscose : en fr
  • US2320189A - Extensible reach for vehicles : en
  • CA412745A - Sheet positioning means : en fr
  • CA412715A - Sodium citrate penta-hydrate : en fr
  • US2320129A - Metal coating : en
  • FR882296A - Washing and rinsing machine comprising a device for effecting a pushing movement : en fr
  • GB553495A - Improvements in or relating to hydraulic presses : en
  • USD135720S - Design for a game board : en
  • US2320071A - Apparatus for extruding metals : en
  • US2320329A - Spray metal coated, metal surfaced articles : en
  • GB553613A - Improvements in and relating to screens for sewage and the like : en
  • US2319921A - Power shovel : en
  • US2319938A - Poultry restraining device : en
  • US2320239A - Plate clamp for securing and positioning printing plates on printing cylinders : en
  • US2320102A - Binder for catalogues and the like : en
  • FR51861E - Improvements to direction-finding installations : en fr
  • FR51877E - Gear shift mechanism for motor vehicles : en fr
  • GB553527A - Improvements in or relating to rafts, barges, keels or the like vessels : en
  • FR51880E - Process for the manufacture of Thomas and Bessemer steels : en fr
  • US2320178A - Pressing machine : en
  • DE735711C - Resistance welding machine for butt welding, especially for the production of pipes with a large wall thickness : de en
  • FR51905E - Welded crankcase for crankshaft, especially for in-line multi-cylinder piston machines : en fr
  • GB553535A - Process for the production of 1-amino-6-hydroxynaphthalene-8-sulphonic acid and 1-amino-7-hydroxynaphthalene-5-sulphonic acid or their n-substitution products : en
  • DE735728C - Railway vehicle of metallic or semi-metallic design : de en
  • AU116966B2 - Improvements in regulatable output reciprocating pumps : en
  • CA412695A - Railway car truck : en fr
  • US2319900A - Apparatus for packing foodstuffs in cans : en
  • CA412711A - Switching means for radiometeorograph systems : en fr
  • CA412710A - Engine starter drive : en fr
  • US2320045A - Electron discharge tube : en
  • US2320078A - Interchangeable covering member : en
  • US2319932A - Measuring instrument : en
  • US2320316A - Rotary loop-taker for sewing machines : en
  • US2319852A - Coating composition : en
  • US2320251A - Thermal conversion of hydrocarbon gases : en
  • DE677699C - Method and device for normalizing and bright annealing of metallic material : de en
  • US2320188A - Projector : en
  • CA412701A - Electrical testing apparatus : en fr
  • CA412700A - Rotary electric switch : en fr
  • CA412789A - Capillary active agent : en fr
  • GB553584A - An improved composition board or slab or pre-cast building element for floors, walls, ceilings, doors or other parts of buildings or structures : en
  • US2320165A - Method of manufacturing protein products : en
  • CA412782A - Titanium bearing material chlorination : en fr
  • DE735759C - Device for the coring of finely ground, powdery material : de en
  • GB553618A - Improvements in or relating to wireless direction finders : en
  • GB553533A - Improvements in the manufacture of turned or spun tumblers, bottles and similar articles : en
  • GB553625A - Improvements in or relating to the alloying of molybdenum with molten ferrous metal : en
  • US2320215A - Clothes compartment for vehicle seats : en
  • DE735801C - Device for rendering harmless the bearing play occurring in the bearings of the workpiece wheel and the scraper wheel of gear scraper machines : de en
  • AU116978B2 - Improved collapsible bunk and stretcher : en
  • US2320030A - Diaphragm lock nut : en
  • US2320174A - Milk can : en
  • US2320138A - Drum cleaning device for carving machine structures : en
  • DE735873C - Electron-optical imaging device with two or more individual lenses : de en
  • US2320103A - Knuckle joint press : en
  • GB553573A - Improvements in or relating to the manufacture of cast iron : en
  • DE735800C - Device for producing holes with a spatially designed base : de en
  • CA412676A - Watercraft : en fr
  • FR882291A - Automobile stop light switch : en fr
  • FR51914E - Improvements to direction-finding installations : en fr
  • GB553599A - Improvements in the production of branched chain alkanes : en
  • US2319911A - Air compressor : en
  • FR51961E - Fastening systems for buttons : en fr
  • DE735815C - Hydraulic speed controller for conveyor machines : de en
  • DE735868C - Stuffing box with labyrinth and fluid seal for turbines driven by elastic pressure medium : de en
  • US2319969A - Bottle labeling machine : en
  • DE735666C - Method of coagulating stabilized latex : de en
  • GB553627A - Improvements in or relating to cutting tools : en
  • US2320099A - Vapor-glazed ceramic product and method for producing the same : en
  • FR51960E - Snap-release coupling for internal combustion engine ignition devices : en fr
  • US2320065A - Toilet ventilator : en
  • US2320213A - Ring traveler : en
  • GB553476A - Improvements in or relating to plywood panels : en
  • GB553602A - Improvements in and relating to fluid-flow meters and the like : en
  • GB553521A - Improvements in or relating to paper or other containers for foodstuff and other commodities : en
  • DE735774C - Electrical switch with rigid current bridges that can be moved in a switching drum : de en
  • USD135721S - Design fob a laundry unit : en
  • US2319997A - Shock absorber : en
  • AU481742A - Improved plasticized rubber hydrochloride film and containers made therefrom or lined therewith : en
  • DE735781C - Motorized timer with reduction gear : de en
  • DE735834C - Relay switching arrangement : de en
  • US2320240A - Die set assembly : en
  • US2319820A - Nutcracking machine : en
  • US2319910A - Sign : en
  • US2319983A - Convertible skirt, cape, and umbrella device : en
  • US2319989A - Production of solvents : en
  • US2320160A - Can puncturing device : en
  • US2319805A - Television : en
  • DE735712C - Process for the production of zinc paste bandages : de en
  • US2320062A - Fuel feeding apparatus fob furnaces : en
  • GB553474A - Improvements in apparatus for cleaning producer gas : en
  • US2320097A - Refrigeration : en
  • CA412688A - Grease gun : en fr
  • DE735769C - Process for the production of colorings on mixtures of animal fibers and cellulose fibers : de en
  • DK60935C - Washing boiler with associated Oven, if Rinsing water preheater is connected to a closed Hot water system. : da en
  • US2319896A - Machine for cutting sheet material : en
  • CA412764A - Portable asphalt mixing plant : en fr
  • US2320020A - Spring mattress and the like : en
  • US2319971A - Full range fuel mixer : en
  • US2319987A - Production of refined solvents : en
  • US2319901A - Vibrating screen : en
  • US2320297A - Machine for decorating coated candies : en
  • US2320265A - Refrigerating apparatus : en
  • USD135711S - Design for a trailer : en
  • US2320256A - Polymerization of olefins : en
  • DK60948C - Process for the production of rubber-like condensation products from organic polysulphides or polyselenides. : da en
  • US2320016A - Safety device for elevating equipment : en
  • USD135719S - Combined toy airplane and projector therefor : en
  • DE735786C - Battery charger for connection to alternating current : de en
  • DK60933C - Method and Apparatus for Pasteurizing Liquids in Bottles or Similar Containers. : da en
  • US2320164A - Welded assembly : en
  • US2319917A - Game : en
  • US2320037A - Doughnut machine : en
  • US2319849A - Closure for jars and the like : en
  • US2319831A - Yeast-treating process : en
  • US2320305A - Dry pipe sprinkler system : en
  • US2320038A - Carbon control for writing machines : en
  • US2320064A - Oil-relieved geneva movement : en
  • US2320238A - Aircraft gun and gunner's seat mount : en
  • US2319881A - Aircraft pickup and delivery apparatus : en
  • US2320293A - Conversion of paraffinic hydrocarbons : en
  • US2319915A - Clamping device for template and stock used in shaping cutting dies : en
  • US2320085A - Truck bolster suspension : en
  • US2320332A - Electricity conductor unit : en
  • DE735766C - Gear pump for injecting fuel into internal combustion engines : de en
  • CA412717A - Electrical resistance unit : en fr
  • US2319992A - Operating tool for high tension electric lines : en
  • USRE22325E - Protector : en
  • AU116969B2 - Improved plasticized rubber hydrochloride film and containers made therefrom or lined therewith : en
  • US2319890A - Refrigerating apparatus : en
  • US2319782A - Adjustable pointer : en
  • US2320317A - Vine cutting mechanism : en
  • GB553582A - Improvements relating to the preparation of powder water paints : en
  • CA412800A - Sound film recording or reproducing device : en fr
  • US2320107A - Aligning connection for drill collars : en
  • US2320283A - Sea moss harvesting apparatus : en
  • US2320285A - Knitting machine : en
  • DE735843C - Burners, especially for liquid fuels : de en
  • FR51891E - Improvements in manufacturing processes for aluminum clad iron, in particular for discharge tube electrodes : en fr
  • FR51864E - Ultra-shortwave devices : en fr
  • FR51959E - Air flow sintering apparatus : en fr
  • FR882292A - Device for t devices. s. f., intended to avoid the radiation of ultra-high frequency oscillations : en fr
  • GB553612A - Improvements in engine starter drive : en
  • US2319939A - Joint for exhaust pipes : en
  • USD135725S - Design for a toy wheelbarrow : en
  • FR882270A - Removable metal cabinet : en fr
  • CA412757A - Sprinkler system : en fr
  • CA412797A - Automatic ticketing system : en fr
  • GB553571A - Improvements in or relating to pressure accumulators or containers : en
  • FR51941E - Process for preparing alcohols of the acetylenic series : en fr
  • US2319812A - Apparatus for treating and drying thread : en
  • DE735574C - Process for sensitizing halogen silver emulsions : de en
  • DE735789C - Welded connection between the luminous bodies of electric light bulbs and the power supply wires : de en
  • US2319885A - Process and composition for treatment of emulsions : en
  • US2319874A - Tape construction for separable fasteners : en
  • USD135722S - Design for a flight plotting instrument : en
  • USD135729S - Plastic unit for use on handbags or the like : en
  • US2320330A - Flame coloring material : en
  • US2320159A - Combined display rack, oil saver, and waste can receptacle : en
  • DE733350C - Device for the automatic replacement of hose heads for looms : de en
  • US2320010A - Lime and plaster product and process of preparing the same : en
  • US2320096A - Operating means for windows : en
  • US2320172A - Tunnel kiln : en
  • CA412780A - Bessemer steel : en fr
  • DE735777C - Switching device for controlling an electrical circuit with a high switching frequency : de en
  • GB553513A - Improvements in or relating to the manufacture of sponge rubber from aqueous rubber dispersions and the products obtained thereby : en
  • US2320074A - Body and fender tool : en
  • US2320311A - Condition measuring apparatus : en
  • US2320233A - Paper bag holder : en
  • GB553583A - Improvements in or relating to pressure actuated electric switches : en
  • US2320154A - Safety razor : en
  • US2320262A - Paint can handle and brush wiping attachment : en
  • DE735741C - Device for cooling dried brown coal, fine coal or coke : de en
  • US2319787A - Sight training picture device : en
  • US2320117A - Electric control means : en
  • US2319803A - Television : en
  • US2320295A - Take-up mechanism : en
  • DE735839C - Temperature-dependent trigger : de en
  • US2319961A - Proof press : en
  • CA412681A - Pipe joint : en fr
  • US2319838A - Dielectric material : en
  • US2319954A - Heat stabilizer for vinyl compounds : en
  • US2320291A - Mop and mop handle : en
  • US2319947A - Weed cutter for outboard motors : en
  • US2320187A - Flush tank : en
  • US2319835A - Automatic controlling system for engines : en
  • DE735729C - Control transformer, the secondary voltage of which is continuously regulated with the help of electrical discharge vessels : de en
  • US2319777A - Process for the production of a metarsenite : en
  • US2319853A - Printing method and means : en
  • US2320237A - Voltage regulator : en
  • FR51855E - Pneumatic motor device with automatic return : en fr
  • DE735756C - Writing boards made of aluminum or aluminum alloys : de en
  • FR51894E - Electric hand lamp : en fr
  • FR51946E - Process for preparing products based on formaldehyde, other carbonyl compounds and ammonium salts : en fr
  • GB553540A - Improvements in or relating to adjustable spanners : en
  • US2320200A - Clipping machine : en
  • FR51942E - Connection terminal for power lines : en fr
  • DE735672C - Combined bleaching and fixing bath : de en
  • DE735841C - Vacuum-tight power feedthrough for electric lamps or discharge vessels consisting of a thin-walled, flexible metal tube : de en
  • DE735804C - Single-track vehicle with a hood-like cladding and a boarding opening : de en
  • GB553502A - Improvements in or relating to precision boring and drilling : en
  • GB553587A - Improvements in or relating to therapeutic plasters : en
  • DE735779C - Switching device : de en
  • FR51944E - Solid fuel for gasifiers of motor vehicles : en fr
  • US2319821A - Mixing device : en
  • US2319846A - Turbine rotor : en
  • US2320153A - Spring construction : en
  • US2320026A - Time-delay switch recloser : en
  • US2320280A - Detergent and sterilizing composition : en
  • GB553524A - Improvements in and relating to the slitting of paper webs in coiled form : en
  • CA412747A - Tool supporting and guiding apparatus : en fr
  • GB553544A - Improvements in or relating to arrangements for insulatingly leading electric conductors through metal casings : en
  • US2319928A - Drinking cup for fowl : en
  • CA412769A - Forming die for intaglio printing plates : en fr
  • US2320013A - Electric iron : en
  • US2320193A - Combined safety light and illuminating lamp : en
  • DE735785C - Arrangement for controlling electrical circuits in installation systems : de en
  • AU537742A - Improvements relating to pipes and like hollow bodies : en
  • GB553471A - Improvements in and relating to precision gauges : en
  • AU116974B2 - Improvements in and relating to control knobs for radio and like equipment : en
  • FR51964E - Improvements to direction-finding installations : en fr
  • FR51983E - Diaryl compounds and process for the preparation thereof : en fr
  • CA412712A - Rotating body balancing apparatus : en fr
  • FR51994E - Cylinder head for internal combustion engines : en fr
  • GB553590A - Appliances for playing games of skill : en
  • US2320052A - Mat : en
  • USD135716S - Aircraft recognition card deck : en
  • DE735748C - Device for automatically switching off the charging device of gas generators u. like : de en
  • DE735734C - Process for the production of lacquer resins from wood tar : de en
  • GB553536A - A new or improved mesh material for making temporary roads or aeroplane landing surfaces and the like : en
  • GB553526A - Improvements relating to envelopes for correspondence : en
  • US2320130A - Guard for grinding wheels : en
  • DE710288C - Two-stroke internal combustion engine with a crankcase pump : de en
  • FR51874E - Manufacturing process of water resistant and incombustible intaglio printing inks : en fr
  • US2320195A - Airplane propeller and actuating mechanism therefor : en
  • CA412699A - Cupreous article cleaning method : en fr
  • DE735751C - Glove dipping form : de en
  • US2320277A - Process of sweetening petroleum distillates : en
  • DE735794C - Bourdon tube feather : de en
  • DK60949C - Goods delivery device for vending machines. : da en
  • US2319905A - Air conditioning system utilizing refrigeration : en
  • GB553577A - Improvements in or relating to colouring rubber articles : en
  • GB553609A - New or improved wood composition and the manufacture thereof : en
  • CA412796A - Signalling system : en fr
  • FR51882E - Process for the production of proteinaceous substances of commercial value, in particular glue and gelatin, from waste leather : en fr
  • FR882293A - Process for making a can of cut fish : en fr
  • US2320002A - Petroleum lubricating jelly : en
  • US2320314A - Differential spring suspension for vehicles : en
  • GB553509A - Improvements in and relating to parting-off tools : en
  • GR10090B - AUTO POWER ENGINE. : el en
  • US2320323A - Bottle stopper with applicator extension : en
  • FR51907E - Dropper device : en fr
  • FR51921E - Cathode : en fr
  • GB553516A - Improvements relating to the fixing of pipes to walls and the like : en
  • US2320261A - Body massaging machine : en
  • US2320087A - Chemical composition : en
  • US2319792A - Abrasive : en
  • US2320072A - Two button switch : en
  • CA412733A - Vapour electric device : en fr
  • AU116985B2 - Improvements in and relating to glow type thermal switches : en
  • US2319998A - Wire grinder : en
  • AU952843A - Improvements in or relating to laminated articles and their methods of manufacture : en
  • US2319827A - Means for manufacturing wire rope and the like : en
  • US2319864A - Tension for shuttles : en
  • CA412799A - Electric conductor and insulation : en fr
  • US2320110A - Electric indicator for typewriters : en
  • CA412708A - Radiator valve : en fr
  • CA412801A - Cable terminal housing cover : en fr
  • US2320070A - Combined cap and auxiliary container : en
  • US2320257A - Process for drying nitrosyl chloride gas : en
  • USD135713S - Design fob a dress : en
  • AU116976B2 - Printing of textile fabrics : en
  • FR882257A - Device for remotely indicating liquid levels : en fr
  • CA412684A - Glyceride splitting apparatus : en fr
  • CA412804A - Paper pulp container making apparatus : en fr
  • US2320048A - Crankcase servicing device : en
  • DE735744C - Safety device for crossings on single-track lines : de en
  • US2320169A - Tractor planter : en
  • GB553503A - Improvements in or relating to telemetering arrangements : en
  • US2319899A - Damming cultivator : en
  • US2319876A - Preparation of aromatic sulphonamide-phenol-dihalide reaction products : en
  • USD135715S - Design for a blouse : en
  • US2319903A - Method of producing patterned cellulosic fabric : en
  • CA412754A - Fibrous glass manufacture : en fr
  • CA412732A - Igniter bushing : en fr
  • CA412744A - High vacuum production : en fr
  • DE735854C - Arrangement for actuating the control element in hydraulic power steering systems on motor vehicles by means of reaction force : de en
  • US2319784A - Driving mechanism : en
  • US2319826A - Adhesive composition : en
  • FR51996E - Improvements to inclined plane elevators : en fr
  • US2319788A - Remote selector and control system : en
  • CA412773A - Photographic colour image production : en fr
  • USRE22322E - Induction heating device : en
  • CA412707A - Sliding gear transmission : en fr
  • CA412785A - Interval measuring instrument : en fr
  • US2319870A - Boat bailer : en
  • US2319945A - Remote control system : en
  • US2320032A - Lock nut : en
  • US2320204A - Method of stem construction for vacuum tubes : en
  • US2319808A - Sterol derivatives and process for producing same : en
  • US2320181A - Method for the production of : en
  • US2320296A - Railway traffic controlling apparatus : en
  • US2319894A - Filter : en
  • US2319884A - Chimney cap : en
  • DE1532429U - : de en
  • CA412683A - Glyceride splitting process and glycerine recovery : en fr
  • FR51903E - Switching device for alternating currents : en fr
  • CA412663A - Propelling attachment for trucks : en fr
  • US2319909A - Package : en
  • US2319977A - Method of forming heat resistant ferrous alloys : en
  • US2320186A - Cover for elevator door hanger mechanism : en
  • DE735736C - Device for monitoring the consumption of work done : de en
  • FR51872E - Apparatus for carbonization of wood with recovery of by-products : en fr
  • FR882283A - Process for the preparation of amides of basic acids : en fr
  • CA412679A - Snow plough : en fr
  • CA412793A - Contour machining tool : en fr
  • CA412725A - Photography colour former : en fr
  • US2320199A - Hydrocarbon conversion : en
  • US2320268A - Ventilator : en
  • US2319781A - Rotary wing aircraft : en
  • US2319823A - Mechanical pencil : en
  • US2320082A - Chain saw : en
  • DE735740C - Device for moving thin sheets and blanks : de en
  • AU543242A - Improvements in and relating to control knobs for radio and like equipment : en
  • CA412694A - Abrading machine : en fr
  • US2319895A - Turret : en
  • US2320271A - Edge to edge sewing machine attachments : en
  • AU557142A - Improved collapsible bunk and stretcher : en
  • DK60953C - Device at combustion chambers, in particular for gas turbine plants. : da en
  • FR882261A - Propeller blade stem fairing : en fr
  • CA412792A - Molasses fermentation solution processing : en fr
  • US2320149A - Producer of protective gases for the heat treatment of metals : en
  • CA412662A - Bed pan and mattress : en fr
  • CA412770A - Electric by-pass switch : en fr
  • US2319972A - Pavement joint : en
  • CA412705A - Manifolding pack : en fr
  • AU537842A - Process of preparing sodium thiosulphate from spent iron oxide and regenerating the latter : en
  • US2320171A - Railway switch operating apparatus : en
  • US2319913A - Thrust bearing : en
  • DE735870C - Roller switch with jump mechanism : de en
  • DK60932C - Apparatus for Measuring Shoulder Dislocation. : da en
  • US2320299A - Smoke preventer : en
  • USRE22324E - Control system : en
  • DE735705C - Electric control device : de en
  • DE735742C - Method of making fire-starters : de en
  • FR51956E - Switching device for alternating currents : en fr
  • GB553490A - Method and apparatus for handling dispersions, such as spinning solutions, which undergo change on keeping : en
  • GB553479A - Improvements in and relating to electric circuit breakers having arc-extinguishing structures : en
  • US2319822A - Composition for improving the absorbing properties of fabrics and the like : en
  • US2319982A - Door : en
  • CA412771A - Portable timber cutting apparatus : en fr
  • CA412760A - Capsicum base seasoning : en fr
  • US2320234A - Aroyl formhydroximic acid halides and process of making them : en
  • US2319970A - Refining of cottonseed oil : en
  • AU540642A - Improvements in and relating to glow type thermal switches : en
  • CA412767A - Rotary pump : en fr
  • CA412790A - Change-speed mechanism : en fr
  • US2320058A - Process of producing a stable, complex compound for use as a flour bleaching agent and as a convenient source of nitrogen oxides : en
  • US2320275A - Totalizer : en
  • GB553538A - Improvements relating to contact breakers for ignition apparatus : en
  • GB553610A - Improvements in and relating to brassieres : en
  • FR51966E - Interference protection device for periodically controlled contact devices, in particular for mechanical converters : en fr
  • CA412751A - Fluid mixture desiccating method : en fr
  • GB553614A - Improvements in or connected with fire-places : en
  • US2320121A - Mechanism for operating switches : en
  • US2319957A - Coated paper : en
  • AU369541A - Improvements in or relating to inductance coils whose inductance canbe adjusted by means ofa core of magnetic material whichis slidable ina coil : en
  • US2319806A - Absorption or adsorption refrigerating apparatus : en
  • US2320248A - Method for seismic surveying : en
  • DE735822C - Cast spoked wheel for rail vehicles with a segmented wheel rim : de en
  • US2319802A - Ornamental tubing : en
  • CA412772A - Photographic image production : en fr
  • FR51945E - Cylindrical iron scabbard surrounded by a light metal casing, for internal combustion engines : en fr
  • US2319793A - Abrasives : en
  • US2320132A - Flush tank : en
  • US2320259A - Motion transmitting mechanism : en
  • US2320156A - Sanitary device : en
  • DE735861C - Process for soldering any metals other than aluminum, in particular refractory metals, and for soldering metal alloys : de en
  • US2319904A - Sleet blade : en
  • DE723609C - Process for the production of solid moldings with a foam structure : de en
  • FR51860E - Automatic disc change device for talking machine : en fr
  • GB553557A - Improvements in engine starter gearing : en
  • GB553629A - Improvements relating to two-stroke single-acting internal combustion engines of thecrosshead type : en
  • GB553632A - Improvements in or relating to rotary vacuum pumps : en
  • US2320148A - Tractor power lifting arrangement for cultivators : en
  • GB553478A - Improvements in or relating to books, memorandum pads and the like : en
  • US2319941A - Brake control mechanism : en
  • CA412798A - Automatic ticketing system : en fr
  • FR51973E - Condensation products and their preparation process : en fr
  • US2320060A - Soil treatment and composition therefor : en
  • US2320177A - Lock retainer : en
  • IE16412L - Gas meters : en
  • DE735792C - Process for regulating the temperature of molten salts heated by electrodes : de en
  • FR51948E - Process for preparing organic compounds containing sulfur, selenium or tellurium, halogen and oxygen : en fr
  • CA412812A - Resinous condensation product : en fr
  • US2319955A - Fabric and method of knitting : en
  • DE735835C - Frame resistance, especially for electric traction vehicles : de en
  • GB553574A - Electric lamp-cap : en
  • US2319832A - Pipe hanger : en
  • US2320119A - Mechanical wrench : en
  • US2320146A - Safety means for aircraft : en
  • US2320324A - Wringer index assembly : en
  • USD135710S - Design fob a jacket : en
  • FR51924E - Application of chemically neutral chromium-nickel steel : en fr
  • US2319847A - Nonslip holder for cake soap : en
  • US2319824A - Titanium oxide production : en
  • US2320198A - Synchronizing indicator : en
  • US2319837A - Adjustable nose splint : en
  • GB553548A - Improvements relating to draw bench gripper carriages : en
  • FR882267A - Process for processing stylographic and other writing nibs : en fr
  • DE735776C - Electrical installation switch with a switching piece that can be alternately adjusted to the right and left using a rotary or swivel handle : de en
  • CA412765A - Bactericidal compound : en fr
  • US2319914A - Building block : en
  • US2320005A - Process and article for use in the manufacture of combined picture and sound films : en
  • US2320063A - Preparation and use of catalysts : en
  • US2320214A - Adjustable glass holder for welders' helmets : en
  • US2320303A - Mechanic's tool : en
  • FR51892E - Control of the gap cleaning device in the slit filters : en fr
  • US2319999A - Sailboat : en
  • FR51896E - Lead-acid accumulator : en fr
  • GB553552A - Improvements in or relating to sliding clasp fasteners : en
  • CA412664A - Life saving and treasure recovering device for ships : en fr