• US2141313A - Waterproof starch-base adhesive : en
  • CH202166A - Process for the preparation of a chromating dye. : de en
  • US2141645A - Assembly for universal joints and the like : en
  • US2141577A - Machine for printing commercial paper instruments : en
  • US2141760A - Imitation drink : en
  • CA378517A - Heat exchanger : en fr
  • CH202092A - Method for fastening current feedthroughs in ceramic parts of electrical discharge vessels. : de en
  • USD112754S - Design for a textile fabric or : en
  • AT155255B - Punching dies. : de en
  • PL27621B1 - A round for a smooth-barreled weapon. : en pl
  • AT155312B - Process for developing colorations from ester salts of leuco vat dyes. : de en
  • US2141249A - Pressing machine : en
  • US2141666A - Picking motion for looms : en
  • US2141849A - Steering wheel table : en
  • US2142003A - Conveyer chain : en
  • US2142016A - Three-drill tractor hitch : en
  • DE669630C - Sandblasting blower for cleaning spark plugs : de en
  • DK55634C - Lock with locking trap. : da en
  • AT155266B - Horizontal washing machine with washing drum rotating in a container. : de en
  • CA378539A - Camera winding mechanism : en fr
  • PL27559B1 - Artificial mass with the properties of wax. : en pl
  • PL27660B1 - A missile, in particular a glow missile. : en pl
  • US2141206A - Control system for circulating fluids : en
  • US2141309A - Lens surfacing machine : en
  • US2141338A - Detector circuit : en
  • US2141816A - Automatic reeling machine : en
  • US2141742A - Stove : en
  • US2141919A - Building construction : en
  • US2142065A - Liquefied gas storage and dispensing system : en
  • PL27666B1 - Device for damping noise caused by blows in valves, in particular in valves of internal combustion engines. : en pl
  • US2141201A - Alloy : en
  • US2141229A - Reduction of noise : en
  • US2141203A - Control and operating mechanism for slide film projectors : en
  • US2141331A - Engine starting apparatus : en
  • US2141752A - Transparent container : en
  • US2141880A - Auger shaft : en
  • US2142070A - Sheet metal surfacing : en
  • FR835750A - Method and device for calibrating hollow bodies, more particularly cans : en fr
  • US2141285A - Ophthalmic mounting : en
  • US2141840A - Core taking tool : en
  • USD112759S - Design fob a dress : en
  • US2142018A - Ball gyrocompass : en
  • US2141194A - Heavy liquid fuel carburetor : en
  • PL27680B1 - Electric stove. : en pl
  • CH201945A - Method for producing a polyamide. : de en
  • CA378584A - Electric cable : en fr
  • CH202123A - Device for indicating that a certain pressure value has been reached with a pressure indicator. : de en
  • US2141562A - Manufacture of starch : en
  • USD112678S - Design for a flower stand : en
  • DE669633C - Method and device for recording cinematographic scenes with a projected background : de en
  • US2141254A - High-frequency coupling device : en
  • GR7892B - PAPER CUP WITH EXTERIOR ONLY COATING FOR PARAFFIN. : el en
  • DE669669C - Receiver for optional telephony and telegraphy reception : de en
  • GB497846A - Improvements in or relating to the manufacture of threads, ribbons, sheets and the like from cellulose derivatives : en
  • CH202164A - Process for the preparation of a chromating dye. : de en
  • AT155280B - Device for receiving television pictures. : de en
  • GB497903A - Flexible coupling discs : en
  • DE669483C - turbine : de en
  • GB497825A - Improvements in or relating to apparatus for the electrical precipitation of suspended particles from gaseous fluids : en
  • AT155261B - Suspension device on bicycles for bags etc. like : de en
  • CH202008A - Process for casting strands of metal, in particular light metal. : de en
  • AT155286B - Discharge vessel for high reverse voltage. : de en
  • CH201900A - Air conveyor system. : de en
  • US2141158A - Typewriter, typewriter calculating machine, and the like : en
  • US2141897A - Journal box : en
  • FR835555A - Magnetic system for electro-dynamic devices such as loudspeakers : en fr
  • PL27589B1 - Liquid fuel gas burner, : en pl
  • US2141771A - Sprocket chain construction : en
  • PL27682B1 - Cigarette holder or pipe. : en pl
  • US2141524A - Binding device : en
  • PL27601B1 - Device for generating power supply for electric arc welding with alternating current. : en pl
  • GB497766A - Improvements in and relating to light structures : en
  • CH201971A - Tab reading device for the prepared address printing plates of an address printing machine, which are guided one behind the other in their longitudinal direction to the printing point. : de en
  • CH202114A - Self-seller. : de en
  • US2141663A - Sewage shredder : en
  • FR835670A - Air bomb and its launching device : en fr
  • US2141295A - Cover for manifold books : en
  • US2141592A - Spring suspension system for cars : en
  • US2141989A - Pipe and plaque holder therefor : en
  • DE669614C - Scale arrangement for receivers, in which the station names are arranged according to aspects other than the wavelength : de en
  • GB497934A - Improvements in or relating to methods and means for re-shaping sheet metal bodies such as damaged automobile bodies and the like : en
  • USD112676S - Design for a game table : en
  • US2141745A - Attachment for apertures of checkcontrolled apparatus : en
  • US2141529A - Portable bridge : en
  • US2141786A - Friction chuck and driver : en
  • PL27581B1 - Throat tester. : en pl
  • US2141421A - Folding cleat or grouser : en
  • US2141603A - Voting machine : en
  • US2141952A - Receptacle : en
  • PL27683B1 - Method for producing condensation products from urea and formaldehyde. : en pl
  • GB497776A - Improvements relating to ferrules for brushes : en
  • GB497960A - Improvements in or relating to a fermentation process for the preparation of paper-pulp from bagasse and similarly incrusted cellulose fibres : en
  • US2141714A - Refrigerator : en
  • AT155275B - Motor housing made from synthetic resin molding. : de en
  • CA378509A - Container closure : en fr
  • AT155335B - Guide device which is arranged below a paddle wheel propeller. : de en
  • USD112732S - Design for a textile fabric : en
  • DE669619C - Method of manufacturing an electric heating plate : de en
  • DE669606C - Method and device for electrodeposition of tungsten : de en
  • FR835715A - Device for winding textile yarn : en fr
  • DE669520C - Process for preventing wires, sheets or strips, especially those made from heavy metals, from sticking together during bright annealing : de en
  • FR835779A - Process for the preservation and handling of bananas and resulting products : en fr
  • US2141658A - Method and apparatus for making granular coated webs : en
  • GB497942A - Improvements in or relating to apparatus for effecting the register of multiple operations on a web : en
  • DE669631C - Friction disc starting clutch or brake : de en
  • DK55628C - Fabric delivery mechanism for sewing machines. : da en
  • US2141707A - Vat dyestuffs of the triazoloanthraquinone series : en
  • US2141725A - Peanut butter package : en
  • DE669445C - Switching device for punched tape devices : de en
  • GB498287A - Nitrogenous organic compounds and their application : en
  • CA378514A - Motor starting system : en fr
  • CH201876A - Equipment for the preparation of bulk goods. : de en
  • DE669596C - Process for the operation of remote control systems in which audio-frequency control currents are superimposed on a power network : de en
  • FR835787A - Machine for making agglomerate blocks and the like : en fr
  • GB497997A - Improvements in and relating to air-depolarized galvanic cells and electrodes therefor : en
  • PL27671B1 - Dust-free garbage disposal device. : en pl
  • FR835759A - Sheet metal stamping press : en fr
  • US2141165A - Running gear : en
  • US2141324A - Box : en
  • US2141622A - Solvent dewaxing process for lubricating oils : en
  • US2141704A - Dispensing container : en
  • GR7895B - AUTOMATIC DEVICE FOR THE UNINTERRUPTED PAYMENT OF THE RECEIVING TELEPHONE CONVERSATIONS. : el en
  • DE669602C - Method for producing rubber threads : de en
  • GB497843A - Improvements in or relating to valves for hydraulic systems : en
  • US2141423A - Loudspeaker mounting : en
  • CA378602A - Foundation garment attachment : en fr
  • AT155326B - Process for the production of lubricating oils. : de en
  • CH201959A - Process for the preparation of an azo dye containing complexed chromium. : de en
  • US2141420A - Acoustic device : en
  • FR835744A - Absorbent pad : en fr
  • GB497915A - Improvements in or relating to electric furnaces : en
  • GB497751A - Improvements in or relating to magnetic compasses : en
  • DE669525C - Device for comparing two identification numbers : de en
  • FR835777A - Rotary cam timing control for locomotive steam engines and others : en fr
  • FR835682A - Water-soluble mono-azo dyes and method for preparing these dyes : en fr
  • US2141240A - Signal lamp : en
  • US2141445A - Magnetic speedometer : en
  • FR835662A - Stretch leather, shoes made from this leather and process for factories : en fr
  • FR835730A - Azo dyes manufacturing process : en fr
  • FR835599A - Portable power tool and its casing : en fr
  • CH201913A - Collapsible furniture. : de en
  • US2141574A - Paper-cutting appliance : en
  • US2141649A - Furnace installation : en
  • US2141977A - Apparatus for determining the gaseous content of materials : en
  • US2142002A - Citrous fruit juice extractor : en
  • GB497888A - Crank-case ventilating system : en
  • GB498002A - Improved bandage and process of manufacture thereof : en
  • US2141962A - Abrasive drum for leather surfacing machines and the like : en
  • PL27648B1 - Device for filling the extraction mug. : en pl
  • PL27663B1 - A miter cutter or a miter machine with a spindle bench that can be moved vertically up and down. : en pl
  • GB497907A - Improvements in or relating to window construction : en
  • FR835755A - Improvements in drilling equipment : en fr
  • US2141425A - Method and apparatus for feeding molten glass : en
  • US2142035A - Dowel pin former : en
  • CH202097A - Electric ignition device on a gas apparatus. : de en
  • CH202171A - Process for the preparation of a nitro dye. : de en
  • CH201929A - Process to raise the pile of brushed fabrics or with hair in general. : en it
  • CH202182A - Method for the preparation of m-monomethoxy-m-dioxy-p-dioxy-fuchson. : de en
  • DE669492C - Foot control for trolleybuses : de en
  • GR7894B - FIXED INSECTS, BUSINESS AND SIMILARITIES. : el en
  • FR835640A - Method for remedying light scattering in thin film films : en fr
  • IE15516L - Bleaching of textile materials : en
  • US2141716A - Centralizer for drill steels : en
  • US2142051A - Typographical machine : en
  • DE669587C - Mixer : de en
  • DE669566C - Process for the production of iron-containing tanning agents : de en
  • DE669550C - Process for fermentation of tobacco : de en
  • US2141590A - Resistivity meter : en
  • AT155290B - Testing and switching device for mobile telecommunication cables and lines. : de en
  • CH202085A - Device with an electromagnet and an armature oscillating in one plane under its action. : de en
  • US2141181A - Ship : en
  • US2141419A - Multiple packer : en
  • US2141218A - Method of and apparatus for opening metal sheets : en
  • US2141731A - Double cylinder water pressure engine and piston pump actuated thereby : en
  • FR835616A - Advanced device for the distribution of postage stamps : en fr
  • FR835602A - Support device intended to be mounted in bathtubs to transform them into steam baths : en fr
  • GB497859A - Improvements in scoring and marking apparatus for the game of darts : en
  • GR7891B - SECURITY PAPER. : el en
  • DE669334C - Circular knitting machine : de en
  • GB497813A - Improvements in electric discharge lamps adapted for use as sources in optical projection apparatus : en
  • US2141583A - Liquid dispensing apparatus : en
  • US2141992A - Direction indicator for vehicles : en
  • US2141416A - Indicator of detonations for internal combustion engines : en
  • USD112684S - Design for a parking meter : en
  • USRE20955E - Tape serving machine : en
  • DE669558C - Production of boron carbide which does not have free carbon and has a higher boron content than corresponds to the formula B C : de en
  • DE669672C - Isolation and changeover switch for X-ray systems : de en
  • CH202155A - Kötzerspulmaschine. : de en
  • CA378546A - Tool for miter fasteners : en fr
  • CH202102A - Device to illuminate the inside of the mouth. : en fr
  • CH201925A - Knitted article and method of making this article. : en fr
  • US2141744A - Article closure and method of applying same : en
  • US2142058A - Polishing machine : en
  • USD112701S - Design fob a tobacco pipe : en
  • US2141604A - Control system : en
  • GB497800A - System of electromagnetic sound recording on metallic plates, ribbons or wires : en
  • AT155315B - Process for producing photographic images in natural colors by the three-color system. : de en
  • CH202024A - Razor with exchangeable blade. : de en
  • DK55631C - Spring device for Vehicles, in particular Motor Vehicles. : da en
  • GB497944A - Improvements in or relating to buffing or scouring tools : en
  • US2141497A - Container : en
  • US2141935A - Power transmission : en
  • US2141987A - Casing spear : en
  • US2142000A - Single trigger mechanism for double-barreled guns : en
  • DE669512C - Soot furnace : de en
  • IE15036L - Stocks and dies : en
  • CA378513A - Reel handle : en fr
  • CH202158A - Process for the preparation of a diphenyl series hydrazine. : de en
  • CH201891A - Device for assembling the shoe of a rail with a support. : en fr
  • US2141318A - Rubber container manufacture : en
  • CH202124A - Device for issuing cards, brochures or the like. From a container. : de en
  • US2141516A - Sterilizing and warming device for containers : en
  • CH202115A - Radio receiving circuit with a device for blocking reception if a fault occurs. : de en
  • GB497765A - Improvements in and relating to flushing tanks : en
  • GB497959A - Improvements in or relating to circular knitting machines : en
  • AT155271B - Brush. : de en
  • CA378581A - Meat tendering tool : en fr
  • US2141432A - Method and apparatus for crimping sheet material : en
  • FR835719A - Improvements to nozzles for gas generators : en fr
  • GB497877A - Expansible cutter tool : en
  • US2141803A - Railway traffic controlling apparatus : en
  • FR835655A - Signaling device for motor vehicles and similar uses : en fr
  • CH202048A - Circulating centrifugal pump, especially for high pressures. : de en
  • FR835562A - Cold inhaler spray : en fr
  • GB497922A - Improvements in centrifugal blowers : en
  • GB497764A - Device for the electric welding of pipes : en
  • GR7889B - METHOD OF PREPARATION OF CELLULAR PAPER FROM OLIVE NUCLEAR. : el en
  • GR7899B - APPLICATION SYSTEM IN A SPHERE OF RUBBING ON A TRACTION MACHINE FOR EXPORTING SPRING PIPES. : el en
  • US2141937A - Electric phase shifting circuits : en
  • FR835738A - Solvent extraction process of hydrocarbon oils : en fr
  • US2141608A - Pulpstone : en
  • DE669637C - Chubb lock that can be closed on both sides with asymmetrical tumblers : de en
  • DE669646C - Device for venting bandage sterilizers : de en
  • US2141178A - Engine starter : en
  • GB497815A - Improvements in daylight-packages for unperforated roll film for photographic apparatus : en
  • US2141241A - Effecting closures in collapsible tubes by welding : en
  • US2141686A - Vacuum pan : en
  • US2141761A - Improved list finding device : en
  • GB497805A - Improvements in or relating to the purification of air by liquids particularly for gas raid shelters : en
  • GB497863A - Improvements in vertical retort settings for the carbonisation of coal and like materials : en
  • US2141589A - Laundry blueing and souring composition : en
  • DE669480C - Note gate : de en
  • US2141768A - Manufacture of carbon bisulphide : en
  • US2141626A - Solvent refining hydrocarbon oil : en
  • GB497861A - Improvements in or relating to machines for forming and fixing electrical contacts : en
  • DE1453664U - : de en
  • CH201969A - Process for the production of colored coatings on zinc. : de en
  • PL27681B1 - Vessel, or a metal cylinder, especially steel. : en pl
  • US2141909A - Floor lamp with cord take-up device : en
  • FR835767A - Mold for the manufacture of reflectors : en fr
  • GB497746A - Preparation of a complex derivative of gold : en
  • US2141195A - Molding machine for plastics : en
  • US2141504A - Saw teeth : en
  • US2141986A - Joint and dowel structure for roadways : en
  • US2141304A - Dental vibrator : en
  • US2141384A - Method of operating digesters and apparatus therefor : en
  • US2141757A - Manufacture of carbon bisulphide : en
  • DE669666C - Threshold restoring device : de en
  • US2141801A - Shoelace : en
  • CH201973A - Marginal device on writing, calculating and similar machines. : de en
  • US2141683A - Reflecting traffic signal : en
  • US2141780A - Hand-operated brake lever : en
  • US2141357A - Electrical apparatus : en
  • US2141527A - Cutting machine for seed potatoes : en
  • PL27650B1 - A method of pre-purifying alcohol during the direct distillation of fermented mashes containing small amounts of alcohol. : en pl
  • GB497923A - Improvements in or relating to prepayment mechanisms particularly for use in connection with electricity meters : en
  • US2142026A - Coating surfaces of zinc-base : en
  • DE669561C - Pendulum feedback receiver : de en
  • USD112755S - Design for a combined transformer : en
  • DE669514C - Ingot mold : de en
  • FR835680A - Process for preparing interesting fuels : en fr
  • GB498291A - Improvements in sensitized photographic emulsions : en
  • US2141268A - Commutator and method of making same : en
  • US2141362A - Washer for fruits, vegetables, and the like : en
  • DE669459C - Double scale with uninterrupted filling operation : de en
  • DK55607C - Tagpap. : da en
  • FR835624A - Advanced veterinary embryotomy device : en fr
  • FR835623A - Mobile binding : en fr
  • CH201905A - Device to facilitate the chipping of floors. : de en
  • US2141657A - Press : en
  • US2141781A - Device for increasing and decreasing road clearance of vehicles and an adjustable anchor : en
  • US2141923A - Ventilating apparatus : en
  • US2141466A - Method of machining crankshafts : en
  • GB497737A - Polyvinyl acetal resin compositions : en
  • US2141681A - Lens and disaphragm assembly : en
  • DE669659C - Emulsions for enhancing brown coal briquettes : de en
  • FR835565A - Demonstration device for elastic fabrics : en fr
  • GB497939A - Improvements in retarding the oxidation of substances sensitive to oxidation : en
  • DE669681C - Rubber thread with a helical surface and process for its manufacture : de en
  • DE669446C - Receiver with shrinkage control and noise elimination : de en
  • DE669455C - Collapsible table : de en
  • DE669639C - Eraser in the form of a circular ring piece : de en
  • DE669627C - Method for the detection of sedentary chemical warfare agents : de en
  • FR835661A - Sputtering process : en fr
  • GB497834A - Improvements in or relating to portable machines for affixing postage stamps, adhesive strip and the like to articles : en
  • US2141388A - Facsimile telegraph system : en
  • US2141521A - Cushioning device for railroad cars : en
  • US2141913A - Sheet stretching apparatus : en
  • FR835789A - Impregnated fibrous substances and compositions for impregnating such substances : en fr
  • PL27631B1 - Screw protection. : en pl
  • FR835577A - Method and device for the continuous manufacture of a bar from a liquid material : en fr
  • GB497917A - Improvements in or relating to print roll compositions : en
  • US2141359A - Lawn mower sharpener : en
  • US2141848A - Soot remover : en
  • US2141853A - Grinding machine : en
  • US2141887A - Racking mechanism for use in dipping sheets and the like : en
  • USRE20956E - sonsthagen : en
  • FR835586A - Improvement in the establishment of jewelry with separable elements : en fr
  • IE15236L - Yeast and yeast-containing substances : en
  • US2141540A - Garment hanger : en
  • US2141734A - Casket : en
  • US2141769A - Combination lamp and display device : en
  • US2141798A - Distillate treating process : en
  • US2141826A - Method and arrangement for the electrical survey of the strata traversed by a bore hole : en
  • US2141963A - Collapsible delivery for printing presses : en
  • SU54338A1 - Mobile tree harvesting machine : en ru
  • DE669527C - bearings : de en
  • US2141941A - Apparatus for heating vegetable oils : en
  • USD112760S - Design fob a dress ensemble : en
  • US2141395A - Winding apparatus : en
  • US2141911A - Lacquer enamel : en
  • US2141168A - Slide valve arrangement for hydraulic gears : en
  • US2141327A - Vanity case : en
  • PL27592B1 - Plate with a measurement mark for stereoscopic rangefinders. : en pl
  • GB497772A - Process for the production of alkaline earth metals by thermal reduction : en
  • GB498031A - Improvements in sensitised photographic emulsions : en
  • PL27552B1 - Method of extracting vanadium from vanadium-bearing material. : en pl
  • PL27670B1 - Method for the production of a mercury derivative of phthalic acid. : en pl
  • US2141748A - Padlock : en
  • US2141973A - Method of and apparatus for facsimile signaling : en
  • DK55614C - Rotary current transformer with completely or almost completely divided Railways. : da en
  • FR835800A - Benzyl-oxyalkyl and hydroxyalkyl ethers of cinchona alkaloids containing a phenolic hydroxyl group and methods for the hydroxyalocylation of these alkaloids : en fr
  • DE669505C - Rotary switch : de en
  • CH202031A - Metal hose wound from two profiled sheet metal strips. : de en
  • DE669682C - Process for the manufacture of rubber articles : de en
  • FR835692A - Method and apparatus for removing vaporizable elements from carbonaceous materials at low temperature : en fr
  • DE669645C - Cremation furnace : de en
  • FR835681A - Notch press : en fr
  • GB497866A - Lubricated valve for low pressures : en
  • CA378614A - Flash light : en fr
  • US2141858A - Vat dyestuffs of the anthraquinone series : en
  • GB498039A - Improvements in typewriting machines : en
  • DE669443C - Cementation bath : de en
  • PL27553B1 - Pocket packet of toiletries. : en pl
  • FR835742A - Gravimeter : en fr
  • FR835584A - Improvements to barbed wire, and process for their manufacture : en fr
  • US2141386A - Method of making fringed woven articles : en
  • US2141670A - Rope drum for needle looms : en
  • CH201975A - Cinema camera. : de en
  • US2141690A - Land leveler : en
  • DE669545C - Secondary electron multiplier : de en
  • DE669574C - Multi-blade circular saw, especially for woodworking : de en
  • CA378594A - Storage cabinet : en fr
  • CH201893A - Heating system that radiates the heat into the room to be heated. : de en
  • US2141650A - Automobile frame : en
  • US2141939A - Control system : en
  • GB497892A - Improvements in and relating to cans and the manufacture thereof : en
  • DE669503C - Electrostatic speaker : de en
  • US2141585A - Vacuum feeder and paddle wheel therefor : en
  • FR835607A - Discharge tube : en fr
  • GB497822A - Improvements in electric gas or vapour discharge tubes : en
  • PL27558B1 - Dustproof mask. : en pl
  • DK55629C - Upholstery or Upholstery Material and Procedure for its Manufacture. : da en
  • FR835675A - Lighting fixture : en fr
  • GB497869A - Improvements in or relating to the manufacture of lined cork sheets : en
  • PL27673B1 - Carburetor for internal combustion engines, especially for car engines, with nozzles controlled additionally by the negative pressure prevailing in the mixture space of the suction pipe. : en pl
  • USD112725S - Design for a blouse : en
  • USD112737S - Design fob a miniature hubdy gubdy : en
  • BE431271A - Manufacturing process of olefin oxides : en fr
  • CH202041A - Switching device. : de en
  • DE669651C - Method of making inverted slippers : de en
  • USD112688S - Design for a jar : en
  • DK55611C - Radio receiver. : da en
  • AT155281B - Gas-tight electrical vessel. : de en
  • AT155325B - Process for the efflorescence-free surface coloring of cement objects. : de en
  • AT155273B - Device for the mechanical redirection and forwarding of control movements, especially in aircraft. : de en
  • CH202022A - Control unit for rotary tool machines, the tool of which is mounted on an oscillating support. : en fr
  • CH202004A - Process for the production of low-carbon and low-silicon metals and alloys. : de en
  • PL27626B1 - A device for balancing the inertia forces of the moving masses of a two-stroke internal combustion engine with opposing pistons in separate cylinders. : en pl
  • US2141610A - Reel or holder for textile packages : en
  • GB497752A - Manufacture of unsymmetrical hepta-carbocyanine dyes : en
  • DE669535C - Starting device for combustion hammer : de en
  • DE669564C - Arrangement for controlling the electrode feed in spark gaps for converting electrical voltages, in particular arc converters : de en
  • PL27578B1 - Self-acting firearm which operates by means of gunpowder gases discharged from the barrel. : en pl
  • PL27627B1 - Thermal insulation of glass fibers or the like. : en pl
  • FR835748A - Improvements to film drive units : en fr
  • FR835688A - Device for the painless treatment of living teeth : en fr
  • GB497839A - Improvements in or relating to extrusion presses for the treatment of plastic masses : en
  • DE669628C - Procedure for the display and control of excess chlorine in water : de en
  • US2141270A - Ice refrigerator : en
  • US2141804A - Phonograph reproducer : en
  • US2141917A - Boiler : en
  • FR835709A - Installation to produce an action by induction between a railroad vehicle and the track : en fr
  • DE669625C - Measuring instrument : de en
  • FR835587A - Improvements to tape reel machines and thread winding machines and the like : en fr
  • AT155340B - Front wheel carriers, in particular for motorcycles. : de en
  • CA378497A - Air conditioning method : en fr
  • GR7902B - WATERPROOF GLASS AND BACKPACK. : el en
  • CA378531A - Camera shutter mechanism : en fr
  • CH202147A - Process for the production of the elevations of rails, in particular wing or knee rails, for frogs in switches or rail crossings. : de en
  • CH201999A - Sports counter. : en fr
  • FR835672A - Process improvements for metal processing : en fr
  • US2141170A - Rotary pump or motor : en
  • US2141703A - Hydraulic-pneumatic pumping system : en
  • US2141713A - Watch and jewelry cleaning machine : en
  • AT155260B - Seed drill, especially for mountainous terrain. : de en
  • US2141429A - Fluid control system for hydraulic motors : en
  • US2141718A - Bumper : en
  • US2141560A - Ornamental fabric and method of making same : en
  • US2141702A - Dumping bucket : en
  • GB498033A - Improvements relating to automatic change speed gearing for automobiles : en
  • US2141351A - Cover for cans : en
  • US2141609A - Refrigeration : en
  • CA378545A - Film reel : en fr
  • CH202005A - Rotary kiln for the thermal extraction of magnesium. : de en
  • US2141312A - Electric discharge device : en
  • AT155332B - Device for double-acting automatic adjustment devices for vehicle brakes. : de en
  • CH202025A - Process for the production of a paint coating which is supposed to have a more reflective effect. : de en
  • CH201960A - Process for the preparation of a water-soluble azo dye. : de en
  • CH202126A - Containers for travel or the like. : de en
  • FR835705A - Improvements to boxes for printing machines the latest news and the like : en fr
  • US2141167A - Control means for hydraulic transmission : en
  • US2141449A - Closed receptacle or case : en
  • USD112691S - Design for an invalid walker tjnit : en
  • FR835638A - Installation for remote control and signaling : en fr
  • FR835671A - Magnetic bells : en fr
  • CH201912A - Chair. : de en
  • US2141861A - Tank roof seam : en
  • USD112740S - Design for a table : en
  • PL27531B1 - A method of refining fuel for engines, especially benzene, natural and cracked gasolines. : en pl
  • PL27546B1 - A method of producing non-stick fibrous materials. : en pl
  • CH201927A - A method of manufacturing a product suitable for sizing rayon. : en fr
  • US2141994A - Mop : en
  • AT155330B - Road or rail motor vehicle. : de en
  • CH202156A - Process for the preparation of androsterone. : de en
  • FR835790A - Securing system between a nut and the threaded rod on which it is screwed : en fr
  • GB497793A - Improvements in and relating to rubber latex and to the treatment of textiles and kindred materials therewith : en
  • US2141417A - Humidifier : en
  • US2142015A - Reverse current relay : en
  • US2141720A - Wrist pin lock : en
  • CH202051A - Opposing piston internal combustion engine, in particular multi-cylinder engine. : de en
  • CH202061A - Apparatus for gasifying liquid fuel to power an explosion engine. : en fr
  • PL27587B1 - A method of refining lighting oils. : en pl
  • US2141328A - Vanity case : en
  • US2141814A - Maternity garment ensemble : en
  • AT155342B - Device for balancing the tongue spring force in spring switches for railways or the like. : de en
  • CH202138A - Hub for vehicles such as bicycles, motorcycles, etc. : de en
  • AT155294B - Relay. : de en
  • CH201974A - Ink pad. : en fr
  • CH201987A - Device for automatic control of the power supply in electrical heating devices. : de en
  • CH202093A - Process for the production of anode material for electrothermally modulable emitters. : de en
  • DE669467C - Process for the protection of negatives, especially film negatives, during contact copying using the blueprint process : de en
  • US2141900A - Slidable fastener : en
  • US2142069A - Guard or shield for vehicles : en
  • US2141346A - Cutter head for corn cutting machines : en
  • USD112695S - Design for a lamp base : en
  • PL27549B1 - Bicycle lock, : en pl
  • US2141569A - Concrete and hydraulic cement : en
  • US2141307A - Commutator : en
  • USD112715S - Design fob a dress ensemble : en
  • US2141244A - Control system : en
  • US2141890A - Variable inductance device : en
  • US2141764A - Coal burning automatically fired hot water heater : en
  • US2141795A - Curtain trimming : en
  • GB497771A - A process for the preparation of wash out reliefs : en
  • AT155267B - Knitting darning machine. : de en
  • AT155308B - Method for protecting wool, hair, fur, feathers, etc. like before moth damage. : de en
  • CH201961A - Process for the preparation of a vat dye of the 4,5,9,10-dibenzopyrene-3,8-quinone series. : de en
  • USD112735S - Design fob : en
  • CA378508A - Vacuum cleaner : en fr
  • AT155289B - Device for checking the connection of three-phase electricity meters. : de en
  • BE431014A - : en
  • US2141196A - Automatic train pipe connecter : en
  • GB497946A - Improvements in or relating to the construction of the arms of chairs, settees and the like : en
  • CH201918A - Pan holder. : de en
  • DE669547C - Large, circular building as an aircraft, market hall or the like. : de en
  • CA378561A - Film phonograph : en fr
  • CH201957A - Process for the preparation of 2-methylhexahydrobenzthiazole. : de en
  • CA378518A - Clutch control mechanism : en fr
  • CH202154A - Washing machine and dishwasher, in particular for dishes and glasses. : de en
  • GB497796A - Improvements in or relating to extensible rubber threads : en
  • US2141162A - Photographic print washer : en
  • US2141988A - Plaque holder and method of making the same : en
  • AT155309B - Method and device for the production of short-fiber twisted rayon threads. : de en
  • CH202148A - Double centerpiece for crossovers and crossings. : de en
  • CH202170A - Process for the preparation of a nitro dye. : de en
  • US2141701A - Nut lock : en
  • US2141784A - Piston : en
  • USD112729S - Design for a lunch box ob similar : en
  • CH201919A - Lids on vessels, especially transport cans. : de en
  • FR835669A - Process for the preparation of saturated and unsaturated derivatives of pregnanedione 3, 20 and resulting products : en fr
  • FR835737A - Adding agents for lubricating oils : en fr
  • GB497748A - Improvements relating to water-tube and forced flow steam and other vapor generators : en
  • CH201986A - Procedure for displaying distances on course lines. : de en
  • CH202066A - Electrode for electric cells. : de en
  • FR835605A - Bullet and cartridge equipped with this bullet : en fr
  • US2141885A - Plasticizing product or plastic : en
  • FR835574A - Improvements to the polymerization of organic compounds : en fr
  • GB497792A - Process for the alkylation of paraffin hydrocarbons : en
  • USD112689S - Design for a signal lamp for : en
  • DE669436C - Printing unit for cash registers or accounting machines : de en
  • US2141391A - High fidelity radio receiver : en
  • US2142025A - : en
  • FR835786A - Installation for drying and curing fish or other foodstuffs : en fr
  • GB497760A - Improvements in or relating to electrical oscillators and time base circuits : en
  • GB497826A - Improvements in or relating to stamps, hammers and the like : en
  • GB497873A - Improvements in multi-spindle automatic turret lathes and like machines with an indexible work spindle turret : en
  • USD112680S - Design fob a velocipede : en
  • BE431204A - : en
  • CH201923A - Device to protect the baton against breaking on looms with a climbing box. : de en
  • FR835642A - Low pressure mercury tube with elemental gas filling consisting of a mixture of neon and argon : en fr
  • GB497844A - Improvements in the manufacture and production of porous metal bodies : en
  • GB497871A - Improvements in or relating to the manufacture of metal articles or masses : en
  • US2141499A - Container : en
  • US2141834A - Nonmetallic bottle cap : en
  • DE669531C - Device for spraying spray material with abrasive components : de en
  • DE669595C - Method for superimposing control currents of non-network frequency on power networks : de en
  • GR7896B - CAR CRYSTAL ELEVATOR. : el en
  • FR835762A - Suspension table for instruments, and in particular for instruments for measuring electricity : en fr
  • PL27598B1 - A device for automatic determination of the volume of a tree passing through a sawmill. : en pl
  • US2141377A - Process and apparatus for the production of sheeting : en
  • FR835580A - Electron multiplier device : en fr
  • CH201972A - Manually operated address printing machine. : de en
  • US2141486A - Apparatus for cultivating celery with white stalks : en
  • FR835734A - Light source : en fr
  • US2141554A - Adjustable magnetic core structure : en
  • US2141806A - Beet topper : en
  • USD112721S - Design fob a portable air : en
  • FR835720A - Travel direction indicator with swinging indicator arm : en fr
  • FR835566A - Armored turret with an armored dome, a fore-breastplate, forming a stop for the dome, and an intermediate layer absorbing shocks between the dome and the fore-breastplate : en fr
  • GB497901A - Improvements in control devices for fluid-pressure operated apparatus : en
  • US2141611A - Method of alkylating cyclic compounds : en
  • US2141763A - Process for recovery of copper from waste liquors of the artificial silk industry : en
  • US2141189A - Bleaching and cleansing compositions : en
  • US2141436A - Fuel regulator : en
  • DE666486C - Device for registering mechanical vibrations : de en
  • DK55635C - Collection container for Skarnvogne. : da en
  • US2141576A - Method of flattening end portions of a bar : en
  • US2141551A - Centralized traffic controlling system for railroads : en
  • USD112699S - Design for a bottle closure cover : en
  • US2141528A - Knock-down projection room : en
  • CA378507A - Shortening compound : en fr
  • PL27614B1 - : en pl
  • US2141366A - Stapler : en
  • US2141433A - Process and apparatus for varying the width of paper webs or the like, in particularfor the longitudinal creping of paper : en
  • FR835736A - Improvements to hydraulic power transmission devices : en fr
  • GB497955A - Improved arrangement for the co-operation of several electrolytic decomposing apparatus : en
  • FR835575A - Recorder and controller system : en fr
  • GB498030A - Improvements in gramophones : en
  • GB497763A - Improvements in or relating to electron discharge devices : en
  • PL27633B1 - Waving device : en pl
  • DE669583C - Detent or friction clutch that switches automatically at a certain torque : de en
  • US2141305A - Hydraulic coupling : en
  • US2141680A - Cushioning mechanism : en
  • DE669580C - Gemstone setting with gemstones inserted into adjacent grooves : de en
  • US2141905A - Fluorescent lamp and fluorescent material therefor : en
  • US2141526A - Educational apparatus : en
  • US2141619A - Tuyere : en
  • US2141659A - Extensible handle : en
  • US2141289A - Automobile reverse control : en
  • US2141868A - Hose nozzle : en
  • GB497943A - Improvements relating to the treatment of water : en
  • GB497941A - Improvements in method and apparatus for coating containers : en
  • PL27607B1 - A device for drying coils of synthetic fibers. : en pl
  • FR835741A - Vehicle chassis : en fr
  • GB497847A - Railway chair key metal non-return grip : en
  • PL27675B1 - Firearms sight. : en pl
  • US2141183A - Spotting board : en
  • US2141717A - Set-up container : en
  • DE669499C - Evaporator for refrigeration machines : de en
  • GB497795A - Improvements in and relating to electric switches employing a conducting liquid : en
  • GB497856A - New nitrogeneous organic compounds and their application : en
  • GB497827A - Apparatus for separating sand from a mixture of sand and water : en
  • DE669477C - Photoelectric control for fast moving objects, especially for pneumatic tube boxes : de en
  • ES144126A1 - New chemical-industrial procedure applicable to the reproduction of photographs, texts, engravings, drawings and images. : en es
  • FR835667A - Support cradle for burners of heating or cooking appliances with town gas, butane, propane or other : en fr
  • GB497860A - Improvements in or relating to boxes, cartons and like containers : en
  • GB497933A - Fuel injection pumps : en
  • DE669484C - Transfer printing device : de en
  • FR835601A - Improvements to devices for suppressing or absorbing sparks in telephone systems or the like : en fr
  • US2141398A - Changeable exhibitor : en
  • FR835684A - Guided route system for vehicles and road trains : en fr
  • US2141272A - Electric switch : en
  • US2141265A - Door handle rose plate construction : en
  • US2141557A - Stone-picking machine : en
  • US2141215A - Independent wheel suspension : en
  • US2141862A - Flotation machine : en
  • US2141467A - Nonskid device for bathtubs and like fixtures : en
  • US2141812A - Cleanout device for stoves : en
  • US2141827A - Device for distant firing of explosive charges : en
  • US2141891A - Tie plate and rail retaining clip : en
  • USD112683S - Design for an identification plate : en
  • USD112747S - Design for a casing for speech input : en
  • USD112723S - Design fob a toilet case : en
  • GB497879A - Improvement in stabilized vinyl resins : en
  • FR835716A - Page and line synchronization device for the transmission of documents by telephotography : en fr
  • US2141721A - Aralkyl ethers of high molecular carbohydrates : en
  • US2141976A - Can head seaming machine : en
  • USRE20958E - Adjustable gun choke : en
  • GB497838A - Improvements in shaving implements : en
  • DE669589C - Automatic control device for speed regulation of retractable lock gates : de en
  • CH201880A - Tow rake. : de en
  • US2141792A - Fastener : en
  • FR835729A - Compositions for flooring : en fr
  • PL27543B1 - A device for setting the distance of the mechanism for the subsequent dropping of bombs from the plane. : en pl
  • US2141264A - Universal joint : en
  • AT155347B - Gas valve operated by a flow of control gas. : de en
  • FR835604A - Improvements in guiding the windows of motor cars : en fr
  • FR835700A - Brush enhancements : en fr
  • DE669555C - Under-burner coke oven with expansion joints arranged in the concrete slab and extending along the longitudinal axis of the chamber : de en
  • US2142067A - Dynamo-electric machine : en
  • PL27654B1 - Electric high-performance tubular discharge lamp. : en pl
  • IE15342L - Protective device for heating utensils : en
  • US2141638A - Solvent dispensing apparatus : en
  • US2141953A - Crossing gate structure : en
  • US2141514A - Apparatus designed for the successive exhibition of dioramas : en
  • US2141954A - Desk : en
  • CH202150A - AC motor vehicle with bogie. : de en
  • US2141737A - Valve bag : en
  • US2141910A - Electric cable : en
  • US2142017A - Apparatus for expanding sections of tubing : en
  • FR835796A - Shielded spark plug for internal combustion engines : en fr
  • PL27603B1 - A spring assembly for each pair of wheels of motor vehicles, in particular with wheels which move independently on pivoting axles. : en pl
  • FR835698A - Skill game : en fr
  • US2141505A - Bearing system : en
  • US2142006A - Timing system for glass feeders : en
  • US2142059A - Safety pilot control system : en
  • CA378559A - Intaglio printing machine : en fr
  • CH202120A - Level control circuit for television amplifiers. : de en
  • US2141508A - Paraffin cleaner : en
  • USRE20954E - Immersion heater for baths : en
  • US2141561A - Time control contactor : en
  • US2141636A - Center stop motion for looms : en
  • USD112746S - Design for a hollow glass building : en
  • DE669476C - Revolving briquette press : de en
  • US2141414A - Braun tube : en
  • US2141584A - Sound reproducing and recording apparatus : en
  • DE669610C - Process for the electrical prevention of scale formation : de en
  • DE669594C - Automatic controller for technical-physical operating parameters : de en
  • DE669642C - Centrifugal machine with feeding of the centrifuged material through a circulation pump : de en
  • US2141607A - Inking mechanism for printing machines : en
  • DE669528C - Hydraulic drive device for reciprocating parts of machine tools, in particular short planing machines : de en
  • GB498135A - Improvements in or relating to electrical resistances : en
  • PL27657B1 - A device which tells the pilot the direction of flight. : en pl
  • FR835685A - Process for copper treatment : en fr
  • US2141730A - Radio receiving system : en
  • US2141510A - Shoeshine hose protector : en
  • US2141216A - Display device : en
  • US2141598A - Automatic decimal point selecting device for accounting machines : en
  • US2141844A - Signaling device : en
  • FR835651A - Improvements made to regulating systems, in particular for controlling the supply of internal combustion engines : en fr
  • AT155253B - Telecommunication cable with symmetrically stranded wire groups for the transmission of higher frequencies, especially for carrier frequency operation. : de en
  • US2141802A - Stereotype plate casting mechanism : en
  • US2141948A - Game apparatus : en
  • CA378573A - Printing telegraph receiver : en fr
  • US2141654A - Voltage regulator device : en
  • US2141819A - Automatic power lift for agricultural implements : en
  • CH202081A - Piezoelectric element. : de en
  • US2141263A - Indexing work holder : en
  • US2141480A - Neck-band clamp for laundry presses : en
  • CA378512A - Box fastener : en fr
  • CH201882A - Wall and method of making it. : de en
  • US2141211A - Gauge : en
  • US2141972A - Face shield : en
  • CA378589A - Socket and lamp base : en fr
  • DE669491C - Plain bearing with outer and inner bearing ring and oil bath lubrication : de en
  • DE669534C - Storage for a coil spring or the like. Existing elastic conveyor belt rollers : de en
  • US2141473A - Signaling system : en
  • CA378540A - Photographic enlarging apparatus : en fr
  • PL27645B1 - Device for driving vehicles by means of a diesel engine or other internal combustion engines, in which electric power transmission from the shaft of the internal combustion engine to the vehicle's drive axle is used. : en pl
  • USD112763S - Design for a dress : en
  • CH202057A - Device for adjusting the quantity of fuel injected into an internal combustion engine. : en fr
  • CA378500A - Antenna retracting mechanism : en fr
  • CH202167A - Process for the preparation of a chromating dye. : de en
  • US2141829A - Column : en
  • US2141199A - Plunger type fountain pen : en
  • PL27661B1 - Method of transforming hydrocarbon oils. : en pl
  • CA378605A - Ventilator : en fr
  • US2141387A - Electron discharge device : en
  • US2141457A - Vehicle wheel : en
  • US2141765A - Piano mechanism : en
  • US2141523A - Binding device : en
  • CH202015A - Milling machine. : de en
  • CH201990A - Device for temperature compensation of Ferrari meters, in which the leakage flux of a short-circuit ring through which the voltage drive flux passes is changed by a bimetal strip that is adjusted accordingly in the event of temperature changes. : de en
  • AT155303B - Parallel vice. : de en
  • CH202179A - Chronograph watch. : en fr
  • CH202139A - Tire valve fitted with a deflation warning signal. : en fr
  • CH202153A - Centrifugal governor, especially for adjustable propellers. : de en
  • PL27668B1 - kfyi, Ml {£, Four-stroke injection internal combustion engine. : en pl
  • US2141192A - Apparatus for annealing : en
  • CA378600A - Razor : en fr
  • DE669458C - Process for the production of Krarupladders from cold-worked, magnetizable strips : de en
  • CH201943A - Process for exchanging anions in solutions. : de en
  • CH202178A - Tens transfer device on counters of calculating machines and cash registers. : de en
  • GB497824A - Propelling apparatus for boats : en
  • US2141615A - Production of extracts from carbonaceous material : en
  • US2141943A - Electric circuit : en
  • AT155341B - Switching device, especially for gear shifting of motorcycles and the like. like : de en
  • CH202034A - Pipe connection. : de en
  • DE669511C - Spark chamber for small self switch : de en
  • DK55632C - Iron or steel bands for placement on bicycle tires to prevent the bicycle from slipping. : da en
  • GB497817A - Improvements in or relating to physical training apparatus : en
  • DE669624C - Cold impregnating agent for wood : de en
  • GB497950A - Improvements in or relating to variable electric condensers : en
  • CH202173A - Process for the preparation of a nitro dye. : de en
  • GB497951A - Improvements in or relating to multi-scale indicators more especially for multi-wave band radio receivers : en
  • USD112679S - Design for a combined globe : en
  • USD112739S - Design fob a bug : en
  • US2141382A - Apparatus for treating plated strip metal : en
  • US2142034A - Work holder mechanism for machine tools and the like : en
  • CA378537A - Camera shutter mechanism : en fr
  • CA378593A - Greenhouse construction : en fr
  • AT155274B - Collapsible air pump with foot operation. : de en
  • CH202000A - Switch for electromagnet. : en fr
  • BE431304Q - Electric appliance for preparing infusions of coffee, tea and other similar drinks : en fr
  • CH201886A - Sealing device at the exit point of roller shutters from the masonry or woodwork to prevent drafts. : de en
  • CH202090A - Electric discharge tube with metal cover. : de en
  • AT155329B - Control valve for air brakes. : de en
  • CA378543A - Collapsible camera : en fr
  • CH201907A - Confectionery tongs and method of making them. : de en
  • DE669676C - Casting mold for the production of dense blocks : de en
  • DE669250C - Look-up and re-grasp-proof protection device for eccentric presses, punching or the like with two-hand indentation : de en
  • US2141333A - Cash register : en
  • CA378592A - Water motor : en fr
  • GB497840A - Improvements in or relating to coal-cutting and like machines, or combined cutting and loading machines : en
  • BE431378A - : en
  • CA378549A - Shuttle changer loom : en fr
  • FR835659A - Device for butt welding of metal strips : en fr
  • PL27608B1 - Vehicle with faulty driveshafts around drive shaft. : en pl
  • US2141600A - Refractory for induction furnaces : en
  • CA378613A - Air gun : en fr
  • GB498006A - Improvements in or relating to apparatus for baking radiator cores : en
  • US2141250A - Golf practice device : en
  • US2141266A - Brake lever : en
  • US2141291A - Ultra-short-wave receiver : en
  • US2141330A - Solar distilling apparatus : en
  • FR835757A - Box for combination of electrical installation equipment, intended for laying under plaster : en fr
  • GB497757A - Manufacture of aliphatic aldehydes : en
  • US2141565A - Blade holder : en
  • FR835693A - Copy milling machine : en fr
  • CA378575A - Olefine sulphide refining method : en fr
  • DE669495C - Process for finishing textile goods : de en
  • AT155282B - Arc extinguishing device, in particular protective spark gap arrangement. : de en
  • CH202132A - Folding trailer. : en fr
  • PL27604B1 - A method of producing white smoke and an apparatus for carrying out the method. : en pl
  • US2141161A - Method of forming severable flanges for slip covers and the like : en
  • US2141393A - Apparatus for the manufacture of paper and the like : en
  • PL27595B1 - A knife for a meat cutting machine. : en pl
  • US2141643A - Brake for axminster loom tube frames : en
  • DE669575C - Electric shaft furnace for direct resistance heating : de en
  • GB497876A - Improvements in or relating to crystallizing apparatus : en
  • FR835697A - Frame and core for casting metals, glass, etc. : en fr
  • GB497850A - Improvements in and relating to air-depolarized galvanic cells : en
  • USD112751S - Dispenser fob nested dishes ob the : en
  • CH202101A - Process for the production of dental prostheses from plastic materials. : de en
  • US2141491A - Lapping device : en
  • US2141437A - Vehicle direction signal : en
  • PL27566B1 - Pedal belt or similar. : en pl
  • PL27530B1 - -Kl ~ 4LL- * iaar- Ribbed pipe for steam plants, heaters, etc. : en pl
  • CH202142A - Scythe holder that can be attached to the bike. : de en
  • US2141550A - Coating material applying device : en
  • US2141627A - Gauge or indicator : en
  • DE669670C - Spacer made of metal and insulating material for airspace-insulated concentric high-frequency cables : de en
  • US2141232A - Fire extinguishing equipment : en
  • US2141985A - Manufacture of esters of salicylic acid : en
  • US2142046A - Electric switch : en
  • US2141380A - Acetylene generator : en
  • DE669597C - High performance fuse : de en
  • AT155319B - Process for the preparation of water-soluble sulfonium compounds. : de en
  • CH201985A - Torpedo. : de en
  • GB497812A - Improvements relating to means for the cooling and heating of low grade massecuites : en
  • FR835761A - Sprayer : en fr
  • FR835784A - Device for recording and printing doses, in radiotherapy : en fr
  • FR835636A - Apparatus for presenting and distributing packaged items : en fr
  • DE669493C - Barrel cleaning device : de en
  • GB497740A - Improvements in or relating to coal-cutting and like machines, or combined cutting and loading machines : en
  • GB497900A - Improvements in or relating to the control of internal combustion engines : en
  • PL27563B1 - Automatic pencil pressure. : en pl
  • USD112690S - Design for an ashtray : en
  • DE669447C - Long-wave direction finding system for diving boats : de en
  • DE669613C - Circuit arrangement for the transmission of direct current surges over subscriber lines in telephone systems : de en
  • GB497865A - Improvements in or relating to electron tube oscillator circuits : en
  • DE669620C - Process for the production of light-colored products from the decomposition of fatty oils using liquid sulfur dioxide : de en
  • AT155336B - Auxiliary valve for vacuum systems. : de en
  • US2141722A - Container closure : en
  • US2141571A - Grinding of cement clinker : en
  • CH201951A - Process for the production of ethynyl androstenediol. : de en
  • GB497936A - Improvements in or relating to elastic fabric : en
  • DE669523C - Printing calculator, preferably for the use of punch card control : de en
  • PL27618B1 - Resistant stop device for auxiliary motor for driving bicycles. : en pl
  • FR835611A - Tile cutter : en fr
  • FR835765A - Ball joint : en fr
  • AT155276B - Screen for Braun tubes. : de en
  • DE669516C - Message pocket with attached device holders and a map pocket on the front : de en
  • US2141180A - Ship : en
  • FR835578A - Automatic lap : en fr
  • CH201888A - Watertight shutter. : en fr
  • AT155337B - Device for the automatic regulation of air heaters, in particular of railway vehicles. : de en
  • CH201953A - Process for the preparation of terephthaloyl 1- (4'-nitranilide) -4-chloride. : de en
  • CA378534A - Camera shutter actuator : en fr
  • AT155265B - Reflectors for electrically illuminated house number and street boards. : de en
  • PL27624B1 - A device for starting internal combustion engines, especially diesel engines, with the use of compressed air. : en pl
  • US2141531A - Brush holder : en
  • CA378586A - Detonating stick for blasting : en fr
  • CH201950A - Process for the production of methyl vinyl ketone. : de en
  • FR835625A - Electric discharge tube with metal covering : en fr
  • FR835769A - Device for stabilizing airplanes and flying machines, with optical indication of its operation : en fr
  • DE669451C - Device for opening up animal bodies, slaughterhouse waste and the like. Like. In the uninterrupted process : de en
  • GB497919A - Improvements in method of forming bolt heads : en
  • US2141859A - Apparatus for use in manufacturing biscuit and the like : en
  • US2141975A - Multiple stylus facsimile recorder : en
  • DE669572C - Edging rail for runners and carpets : de en
  • BE431079A - : en
  • US2141544A - Device for laying the threads over rotating stretching devices in spool spinning machines for artificial silk : en
  • US2142042A - Process for drying : en
  • US2141552A - Variable pitch airscrew : en
  • US2141612A - Stapling or wire-stitching machine : en
  • CH202060A - Procedure and lubrication device for internal combustion engines. : en it
  • USD112706S - Design fob a jar : en
  • CA378606A - Vehicle wheel : en fr
  • CH201970A - Panel, in particular for wall coverings and processes for producing the same. : de en
  • CH201895A - Toilet system. : de en
  • US2141652A - Fabric guide for take-up : en
  • PL27644B1 - Anti-skid support for railway rails. : en pl
  • CA378571A - Liquid level indicator : en fr
  • FR835668A - Apparatus consisting of an elastic surface, producing wind by deformation, serving as a fan, or screen for the eyes against the sun, and light : en fr
  • CA378560A - Freight car air brake : en fr
  • CH201898A - Process for treating panes of glass. : de en
  • CH202002A - Machine for tapping the balancing screw holes of watch balances. : en fr
  • CA378504A - Electron discharge device mount : en fr
  • AT155270B - Washing device. : de en
  • AT155302B - Setting machine. : de en
  • CH202100A - Glow electrode for electric discharge tubes. : de en
  • US2141404A - Stuffing box : en
  • US2142064A - Respirator : en
  • PL27557B1 - The fire tube. : en pl
  • PL27544B1 - : en pl
  • PL27539B1 - Pencil with interchangeable holders for several inserts. : en pl
  • US2141325A - Liquid level indicating device : en
  • US2141691A - Dispensing device : en
  • CA378515A - Magnetic material : en fr
  • CH202176A - Process for the production of a resin-like, almost water-white product from a natural resin. : de en
  • CA378521A - Welding flux : en fr
  • US2141355A - Switch for traffic signals : en
  • GB497780A - Improvements in or relating to controlling flying boats during take-off, flight and alighting : en
  • AT155350B - Storage container for razor blades. : de en
  • FR835774A - Process for preparing metal oxides : en fr
  • AT155293B - Cathode ray tube. : de en
  • PL27533B1 - Connection system for parallel operation of several high-frequency furnaces. : en pl
  • CH201887A - Opening device for window blinds. : de en
  • CA378562A - Article surfacing method : en fr
  • US2141396A - Artificial cellulosic structure : en
  • US2141967A - Hydraulic brake : en
  • CH202009A - Process for the production of coated welding rods and apparatus for carrying out this process. : en fr
  • CH201878A - Lifting device on mobile farm equipment, such as B. Potato and beet harvesters. : de en
  • CA378565A - Electrode system of unsymmetrical conductivity : en fr
  • CH202087A - Method for connecting the pistons and the feet of metal piston tubes. : de en
  • PL27536B1 - Kfc-4Wirter- Hydraulic pedal. : en pl
  • US2141593A - Lubricating oil : en
  • US2141810A - Roll shaft support : en
  • DE669519C - Hot water remote heating system : de en
  • DK55616C - Current transformer type transformer. : da en
  • PL27551B1 - A method for the purification of phenol-free tricresyl phosphate or other phosphoric acid esters used to leach phenols from waste waters. : en pl
  • DK55627C - Hydraulic Power Transmission. : da en
  • CA378608A - Rotary valve engine : en fr
  • CH202001A - Machine for rounding the ends of the pivots of small mobiles. : en fr
  • CH201948A - Process for the preparation of a new phthalic acid monoester. : de en
  • US2141629A - Rewinder : en
  • DE669461C - Needle changing device on pickups for records : de en
  • US2141509A - Coaster : en
  • US2141262A - Chair : en
  • CH202112A - Registration device at cash registers. : de en
  • GB497739A - Polyvinyl acetal resin compositions : en
  • AT155278B - Stretchable electrical cord. : de en
  • PL27641B1 - Electric transmission, especially for draft machines. : en pl
  • US2141875A - Method of making air-vapor mixtures : en
  • US2141434A - Preparation of cyanine and related dyes : en
  • USD112764S - Design fob a textile fabric or : en
  • US2141805A - Transport truck : en
  • US2141873A - Heating apparatus : en
  • PL27659B1 - A method for processing soybeans, oil fruits, legumes and a device for carrying out the method. : en pl
  • US2141243A - Signal : en
  • US2141634A - Adhesive applying mechanism : en
  • USD112700S - Design for a lamp : en
  • GB497904A - Elastic guide rail particularly for sliding doors : en
  • US2141299A - Crop lifter : en
  • FR835722A - Mechanism for driving the tipping bodies of animal drawn vehicles : en fr
  • GB497889A - Method and apparatus for forming pressed glass ware : en
  • US2142066A - Transformer core structure : en
  • US2141740A - Manufacture of carbon bisulphide : en
  • US2141728A - Upright piano : en
  • US2141974A - High speed facsimile recorder : en
  • FR835701A - Device for catching flies : en fr
  • PL27656B1 - Cooling device for aircraft engines using liquid as a coolant. : en pl
  • DE669427C - Process for converting naphthalene and hydrogenated naphthalenes into lower boiling hydrocarbons : de en
  • IE15514L - Bleaching of textile materials : en
  • FR835727A - Halogenated derivatives of benzoic acids and process for their preparation : en fr
  • GB497808A - Cathode ray tubes : en
  • GB498289A - Improvements in sensitised photographic emulsions : en
  • DE669653C - Process for the production of particularly durable characters and symbols on roughened glass surfaces : de en
  • USD112731S - Design for an atomizer : en
  • GR7886B - METAL ALLOY. : el en
  • FR835771A - Trolley on raft for service of mobile booms : en fr
  • DE669655C - Device for the pretreatment of loaves of bread in a fermentation box and for introducing the loaves of bread into the oven : de en
  • DE669674C - High-speed rotary compressor with screw-shaped rotary lobes : de en
  • FR835783A - Combination pneumatic and pressure injection hand pump : en fr
  • US2141407A - Duplicating apparatus : en
  • USD112724S - Design fob a hat : en
  • USD112743S - Design for an airplane landing : en
  • FR835606A - Unitary piloting system for airplanes : en fr
  • FR835745A - Caged small bird feeder tank : en fr
  • GB497867A - Improvements in or relating to cooking utensils : en
  • US2141204A - Fruit pitting and cutting machine : en
  • FR835564A - Electrical device for checking the match of perforated parts according to different codes : en fr
  • FR835658A - Improvements to the locks with cremone or Spanish, adjustable in length, for windows and doors : en fr
  • CH201892A - Double-way domestic heating appliance for solid fuels. : en fr
  • FR835612A - Billiards : en fr
  • US2141317A - Lens mount : en
  • US2141824A - Tennis racket : en
  • FR835643A - Dryer tunnel for textile yarns : en fr
  • US2141344A - Sign : en
  • US2141413A - Building up of highly sensitive cascade amplifiers : en
  • US2141481A - Hatch closure : en
  • DE669538C - Loom with rapier looms : de en
  • DE669468C - Device for stirring, cooling or heating a liquid, especially for dispensing equipment : de en
  • AT155310B - Process for the production of strips and sheets for cans, sheet metal packaging and the like. like : de en
  • FR835645A - Metal pressure-resistant hollow body and method and apparatus for manufacturing same : en fr
  • US2141886A - Reclaimed gas recovery process : en
  • GB497870A - Improvements in the construction of metal poles and the like : en
  • GR7898B - PETROLEUM ENGINEER REGULATOR. : el en
  • US2141408A - Brassiere and breastpad : en
  • US2141446A - Bicycle pedal : en
  • US2141809A - Multistage creping apparatus : en
  • US2141662A - Grinder : en
  • GB497910A - Improvements in and relating to sliding doors : en
  • US2141219A - Drafting mechanism : en
  • CH201993A - Device for coupling a flexible link to a watch case. : en fr
  • FR835615A - Improvements to manifolds, pipes and exhaust pipes for air or liquid cooled aircraft engines : en fr
  • GR7890B - POWER PROPULATION SYSTEM. : el en
  • FR835673A - Air Intake Regulator for Carburetor : en fr
  • BE430958A - protective enclosure for x-ray tubes : en fr
  • DK55621C - Layered Plate. : da en
  • DE669479C - Cover for road shafts, rain gutters, rail drainage boxes and. Like. With a multi-part cover : de en
  • DE669437C - Sealing for roller bearings or slide bearings composed of inner and outer rings : de en
  • DE669636C - Rowing device : de en
  • DE669554C - Mercerising aids : de en
  • GB497913A - Improvements in or relating to indicating devices : en
  • GB497853A - Improvements in or relating to the manufacture of aluminium sulphate : en
  • FR835763A - Expanding liquid thermal regulation device for electrically heated devices, for example for boilers : en fr
  • FR835696A - Gas purification method and apparatus : en fr
  • GB497906A - Improvements in or relating to manifold transfer devices : en
  • US2141315A - Unwinder and winder mechanism for paper machinery : en
  • FR835731A - Improvements to gas protection devices for young children : en fr
  • USD112702S - Design fob a cigarette holder : en
  • US2141463A - Telephone metering system : en
  • US2141874A - Window frame and sash : en
  • PL27568B1 - Amplifying connection system including a four-mesh lamp. : en pl
  • AT155346B - Device for rectifying the position of the imprint on items supplied with imprint, such as cigarettes or the like, which are fed in rows to the packaging point via a sorting device. : de en
  • DK55633C - Cell-divided Wheel Ring of Rubber. : da en
  • FR835591A - Process for improving lubricants : en fr
  • FR835703A - Cash register or accounting machine : en fr
  • US2141807A - Liquid level controlling valve : en
  • CH201924A - Device on web shuttle spindles to hold the cop. : de en
  • AU189838A - Improvements in or relating to printing machines : en
  • US2141427A - Compressed air operated pump : en
  • US2141444A - Method of purifying aluminous materials : en
  • DE669541C - Process for the preparation of sulfonation products of unsaturated or hydroxylated compounds of the aliphatic series : de en
  • GB497893A - Improvements in or relating to sewing machines and the like : en
  • GB497885A - A control device for sheet feeding apparatus : en
  • GB498012A - Process for the manufacture of polymethine dyestuffs : en
  • US2141301A - Concrete working machine : en
  • US2141383A - Process of preparing solutions of cellulose in sulphuric acid : en
  • US2141981A - Apparatus for casting metal : en
  • USD112750S - Design fob a pencil : en
  • PL27540B1 - A method of making sugar-free diet drinks similar to liqueurs. : en pl
  • PL27562B1 - : en pl
  • US2141669A - Process of making viscose : en
  • US2141946A - Wall : en
  • FR835635A - Mechanical pencil : en fr
  • US2141712A - Drill sharpener : en
  • DE669598C - High voltage fuse with main and secondary fusible conductors embedded in an extinguishing agent : de en
  • GB497753A - A process of copying colour-record lenticular films : en
  • GB497864A - Motion picture film treating apparatus : en
  • GB516358A - Stabilized negative resistance and conductance devices : en
  • GB497770A - An improved sparking plug having means for automatically varying the spark gap : en
  • DE669678C - Extending table with drawers or compartments arranged in the frame or in the foot column : de en
  • FR835559A - Suspension device, consisting of a part fixed to the wall and a removable part : en fr
  • GB497975A - Improvements in storage batteries : en
  • US2141200A - Machine for making fastener stringers : en
  • DE669456C - Heater : de en
  • FR835676A - Improvements in the manufacture of alkali and alkaline earth metal chlorites : en fr
  • GB497773A - Improvements in or relating to hair drying helmets : en
  • DE669501C - Stamping device with stamping weight that can be raised and lowered on a boom : de en
  • IE15340L - Casting pistons : en
  • GB497823A - Improvements in and relating to piston packings : en
  • US2141340A - Safety hair cutting appliance : en
  • US2141471A - Hatch frame construction for car roofs : en
  • DK55618C - Metal vapor discharge pipe. : da en
  • FR835756A - Device applicable to buttonhole machines, for changing the position of the movement mechanism for straight or eyelet buttonholes : en fr
  • FR835691A - Process for preparing tetralylquinol derivatives and products obtained : en fr
  • US2141597A - Decimal point control for accounting machines : en
  • US2141790A - Plug cap : en
  • US2141238A - Boiler : en
  • US2141258A - Moistening device : en
  • US2141860A - Shockproof radiographic tube : en
  • US2141927A - Arc-back suppression : en
  • US2142037A - Moisture control system : en
  • DE669509C - Process for the production of resistance wires for iron-hydrogen resistors : de en
  • DE669504C - Receiver with a device for automatic sharpening : de en
  • DE669581C - Device for shutting off the fuel supply to a carburetor : de en
  • US2141518A - Art of annealing sheets : en
  • PL27521B1 - Arrangement of brush holders for electric machines. : en pl
  • PL27605B1 - Double-wall palisade sheet made of steel or of a stainless steel alloy resistant to the crown. : en pl
  • DE669469C - Sea water evaporators on ships : de en
  • GB497799A - Improvements in fluid-pressure-operated stamps and the like : en
  • DE669563C - Process for protecting water-sensitive mines to be embedded in pencil wood : de en
  • GB497818A - Improvements in or relating to bearing sleeves and to the method of manufacturing same : en
  • CA378516A - Explosive firing apparatus : en fr
  • CH202072A - Multi-layer winding for electrical collector machines. : de en
  • CH202117A - Radio aerial. : de en
  • PL27620B1 - Lock - latch. : en pl
  • PL27658B1 - Suction and delivery pump with oscillating working piston. : en pl
  • PL27541B3 - Timing device for controlling the rams of multi-cylinder radial internal combustion engines. : en pl
  • PL27567B1 - Klr-34-TT23702r- A pad for stiffening the edge of the shoe when pulling on the shoe. : en pl
  • US2141160A - Dispenser : en
  • US2141930A - Receptacle for containing glass during its manufacture : en
  • US2141606A - Shelf edging : en
  • PL27585B1 - Ignition magnet for internal combustion engines. : en pl
  • US2141410A - Loose leaf binder : en
  • US2141915A - Pulley construction : en
  • US2142032A - Presser shoe : en
  • US2142043A - Machine and process for finishing mercerized cotton : en
  • US2141582A - Cutting machine such as a safety razor : en
  • US2141616A - Container for toilet materials : en
  • US2141749A - Maximum current switch : en
  • USD112762S - Design for a dress : en
  • FR835634A - Device for keeping clothes in their shape : en fr
  • CA378538A - Camera view finder : en fr
  • US2141190A - Dental appliance : en
  • US2141498A - Multiple master cylinder unit : en
  • US2141644A - Manufacture of evacuated metal envelopes : en
  • GB498133A - Method of manufacturing mercury displacement relays : en
  • DE1453529U - : de en
  • US2141640A - Method of chromizing : en
  • DE669452C - Device for the continuous feeding of flax stalks to the crusher : de en
  • PL27571B1 - Gyroscope device for indicating the position of the plane and the direction of its flight. : en pl
  • US2141548A - Magnetic recorder : en
  • DE669475C - Cell wheel for feeding the pressed material in ring roller presses : de en
  • DE669599C - Magnet system composed of several bar magnets or horseshoe magnets for electric bicycle alternators : de en
  • US2141298A - Vehicle door construction : en
  • PL27677B1 - Sewn-on collar clip with foldable top. : en pl
  • US2141172A - Derivatives of phenyl-phenyl esters : en
  • PL27591B1 - Lubrication device. : en pl
  • US2141322A - Cascaded secondary electron emitter amplifier : en
  • PL27634B1 - Machine for slitting and rolling paper or the like. : en pl
  • DK55625C - Air-cooled Internal Combustion Engine with V-shaped Cylinders, In particular for Motor Vehicles. : da en
  • GB497921A - An improved method of forming or shaping grinding or abrasive wheels : en
  • FR835646A - Servomotor for speed change of motor vehicles : en fr
  • US2141729A - Polishing composition : en
  • US2141360A - Liquid fuel burner : en
  • FR835573A - Ingot and slab cutting shear : en fr
  • US2141369A - Device for converting direct current into alternating current : en
  • US2141469A - Tong line control for skidder carriages : en
  • US2141490A - Substation protector : en
  • US2141217A - Engine starter : en
  • US2141549A - Lidding machine : en
  • US2142023A - Bracelet attachment : en
  • PL27639B1 - Foldable shower cabin. : en pl
  • US2141912A - Power transmission system : en
  • AT155307B - Process for the production of galvanically coated objects with a high-gloss surface, in particular headlight mirrors. : de en
  • CH202044A - Rotary machine. : en fr
  • US2141174A - Bottle closure : en
  • US2141329A - Viscosity cup : en
  • US2142028A - Grinding machine : en
  • DE669457C - Heater : de en
  • US2141255A - Refrigerating apparatus : en
  • PL27565B1 - A device for lubricating machine parts with reciprocating motion. : en pl
  • USD114499S - Withdrawn : en
  • CA378563A - Self-inflating life preserver : en fr
  • FR835733A - Process for the polymerization of olefins : en fr
  • US2141673A - Electron discharge device : en
  • US2141710A - Seat construction : en
  • FR835788A - Process for preparing polyazo dyes, lacquers derived therefrom and new industrial products resulting therefrom : en fr
  • GB497954A - Improved method for insulating the cell body and container of electrolysers : en
  • FR835653A - Automatic signal receiving system : en fr
  • US2141843A - Hydroxyalkylamino compounds : en
  • US2141637A - Composition of matter : en
  • FR835561A - Device for transforming reciprocating rectilinear motion into continuous circular motion : en fr
  • GB498005A - Improvements in or relating to apparatus for baking radiator cores : en
  • US2141342A - Portable sign : en
  • US2141535A - Railway signaling system : en
  • US2141660A - Vehicle pulsator : en
  • CH202006A - Apparatus for supplying ingots to a melting furnace. : en fr
  • CH202077A - Thermal contact device. : de en
  • CA378591A - Aircraft engine suspension : en fr
  • CA378519A - Friction clutch : en fr
  • US2141984A - Airplane : en
  • CH202068A - Process for the production of a depolarization mass. : de en
  • USD112736S - Design fob a dress : en
  • US2141850A - Sharpening device : en
  • US2141370A - Cementing plug : en
  • US2141993A - Construction toy : en
  • US2141995A - Welding wire : en
  • US2142038A - Band pass filter : en
  • USD112716S - Design fob a dress ensemble : en
  • CA378598A - Display device : en fr
  • CA378604A - Metal railway crossing : en fr
  • CH202082A - Electric discharge vessel. : de en
  • DE669634C - Photocomposing machine : de en
  • US2141888A - Building construction : en
  • CH202080A - Overcurrent delay fuse. : de en
  • CH202109A - Pressed cotton plug with a cover serving as an aid for its hygienic storage and insertion of the same into cavities in the human body. : de en
  • US2141770A - Control device for radio receiving sets : en
  • US2141931A - Method of and apparatus for handling and treating flexible bodies : en
  • PL27625B1 - Lock for securing bikes against theft. : en pl
  • CH202165A - Process for the preparation of a chromating dye. : de en
  • US2141530A - Tractor : en
  • US2141581A - Machine : en
  • US2141830A - Combination ground crust breaker, weeder, and mulcher : en
  • US2141904A - Slicing machine for bakery products : en
  • PL27547B1 - Washable playing card. : en pl
  • US2141191A - Milling machine : en
  • US2141553A - Transmission control circuit : en
  • DE669440C - Process for smoldering fuels in vertical, interrupted chamber furnaces : de en
  • US2142033A - Process for the production of 2-p-dioxanone : en
  • CH202146A - Bogie on which two butting ends of the wagon are supported. : de en
  • CH202094A - Contact device on self-baking oven electrodes. : de en
  • CH202127A - Carrying device for transporting back loads. : de en
  • CA378501A - Oscillation generating system : en fr
  • CH202076A - High-voltage switchgear with oil transformer. : de en
  • GB497890A - Tying machine : en
  • US2141428A - Diesel engine : en
  • US2141596A - Automatic steady rest for grinding machines : en
  • US2141833A - Nonmetallic bottle cap and method of making and applying the same : en
  • US2142013A - Meter insulation and protective barrier : en
  • CA378557A - Brake lever : en fr
  • CH202088A - Circuit with a discharge tube which contains at least one cathode, a control grid, an auxiliary cathode which emits secondary during electron bombardment and an anode. : de en
  • US2141356A - Hydropneumatic scavenging pump regulator for deep boring equipments : en
  • DK55620C - Cold and hot water supply system with hot water boiler for multi-storey buildings. : da en
  • CH202118A - Arrangement for eliminating interference in wireless reception by compensating for the interference component. : de en
  • AT155334B - Cable supports, in particular for suspension cableways. : de en
  • US2141892A - Shelf support and installation thereof : en
  • PL27622B1 - Device for air cooling of internal combustion engines, in particular radial internal combustion engines. : en pl
  • DE669515C - Method and device for the production of dense blocks from aluminum or magnesium alloys : de en
  • US2141306A - Power transmission assembly : en
  • US2141512A - Feed regulator for cotton linter hoppers : en
  • US2141821A - Composite plaster base and insulating unit : en
  • FR835583A - Method of sound transmission applying to intermediate film emissions : en fr
  • FR835666A - Improvement to intake manifolds for internal combustion engines powered by several carburettors : en fr
  • DK55610C - Drive motor for electric vehicles. : da en
  • FR835621A - Naphthalene recovery facility : en fr
  • FR835678A - Water flow regulator : en fr
  • GB497899A - Improvements in roof coverings for buildings, wagons and the like : en
  • FR835657A - Paper for looms : en fr
  • PL27575B1 - Suspension of power lines in rail-free railways. : en pl
  • US2141845A - Method of treating fibrous material : en
  • US2142061A - Automatic universal profile and die sinking machine : en
  • PL27652B1 - An electrical device that signals a drop in pressure in the detectors. : en pl
  • US2141453A - Apparatus for calorimetry of combustible fluids : en
  • US2141789A - Photoelectric cell oscillation circuit : en
  • USD112682S - Design for a doll or similar article : en
  • US2141296A - Weighing machine : en
  • CH202086A - Condenser respectively Condenser bushing and method of manufacturing the same. : de en
  • CH202172A - Process for the preparation of a nitro dye. : de en
  • CH201937A - Cereal husking machine. : en fr
  • DE669567C - Suspension device for leather, skin, etc. like : de en
  • PL27640B1 - Template for making wire mesh. : en pl
  • USD112742S - Design for a handbag : en
  • CH201922A - Shaft pulling device for dobby machines. : de en
  • CA378529A - Weld rod : en fr
  • CA378601A - Floor waxing device : en fr
  • CH201997A - Watch. : en fr
  • CH201877A - Coupling for coupling a plow to a tractor. : de en
  • AT155287B - Plug connection for measuring purposes. : de en
  • US2142078A - Initially light colored phenolacetaldehyde resin : en
  • CH201884A - Method of making the tread of stairs. : de en
  • CH202168A - Process for the preparation of a nitro dye. : de en
  • US2141883A - Conveyer : en
  • DE669592C - Control device for die setting and line casting machines with selector rails, which are brought into various combination positions from a register strip : de en
  • US2141368A - Barrette : en
  • PL27612B1 - Rotating steam generator. : en pl
  • US2141724A - Spinning and twisting : en
  • US2141451A - Apparatus for the pneumatic separation of materials of different specific gravities and sizes : en
  • US2141440A - Knitted fabric and method of making the same : en
  • CH201956A - Process for the preparation of 2-methyl-4-amino-5-cyanopyrimidine. : de en
  • US2141813A - Zinc alloy engraving plate : en
  • FR835594A - Improvements in the means for launching aerodynes, in particular high tonnage aerodynes : en fr
  • FR835717A - Process for manufacturing yarns, filaments, films or other artificial elements : en fr
  • FR835752A - Draftsman's equipment for the blind : en fr
  • FR835772A - Improvements to ignition devices by supercompression for explosion engines : en fr
  • US2141699A - Foot arch support : en
  • US2141791A - Construction of storage battery containers : en
  • CA378607A - Mining machine : en fr
  • CH202019A - Device on trimming saws for adjusting the work piece. : de en
  • US2141335A - Polishing mop : en
  • US2142076A - Phenolic acetaldehyde resin and process of making the same : en
  • US2141893A - Trifluoromethyl-aryl-sulphonic acids and a process of preparing them : en
  • FR835695A - Attachment device for removably fixing tubes or other telescopic parts : en fr
  • AT155269B - Plaster board. : de en
  • US2141349A - Process for the recovery of carbon disulphide from industrial effluent waters : en
  • US2141534A - Folding structural arrangement of aircraft : en
  • PL27520B1 - Method for the production of zinc oxide. : en pl
  • US2141513A - Belt hanger : en
  • AT155348B - Withdrawal signal for oxygen breathing apparatus. : de en
  • BE431324A - : en fr
  • CH201916A - Stirrer. : de en
  • PL27610B1 - A lantern for the non-disruptive street lighting. : en pl
  • USD112703S - Design for a bottle : en
  • CA378609A - Vehicle brake : en fr
  • DE669570C - Method and device for the production of dense blocks from aluminum or magnesium alloys : de en
  • CH202011A - Method and device for the production of finned tubes rolled over a mandrel. : de en
  • US2141779A - Safety emergency brake lever : en
  • CH202043A - Machine comprising at least one free piston assembly. : en fr
  • CA378579A - Convertible coaster wagon and sled : en fr
  • DE669474C - Replaceable tread : de en
  • GB497814A - Improvements in radio sockets : en
  • US2141290A - Electric cable : en
  • US2141857A - Method and apparatus for taking X-ray photographs : en
  • USD112694S - Design fob a musical chime : en
  • CH202007A - Method and device for producing a running surface from a harder material in a light metal cylinder for internal combustion engines by centrifugal casting and light metal cylinders produced according to this process. : de en
  • US2141478A - Apparatus for the germination of seeds and the growth of seedlings : en
  • PL27586B1 - Air bomb. : en pl
  • US2141276A - Tanning agents and process of producing the same : en
  • PL27667B1 - Low piano with lifting music rest. : en pl
  • US2141372A - Telephone system : en
  • US2142011A - Sheet delivery apparatus for folding machines : en
  • US2141811A - Swimming pool cleaner : en
  • USD112734S - Design for an embroidered textile : en
  • US2142040A - Traffic regulating system : en
  • US2142072A - Electric incandescent lamp : en
  • FR835689A - Automatic gear change for all means of transport driven by muscle power : en fr
  • US2141242A - Ultra short wave system : en
  • US2141259A - Control apparatus : en
  • GB497749A - Improvements in or relating to operating means for manually operated variable condensers and like toning devices : en
  • US2141367A - Butter serving implement : en
  • US2141776A - Cellulosic structure and method for preparing same : en
  • US2141842A - Vehicle top : en
  • PL27674B1 - Case for hunting cartridges made of light metal. : en pl
  • US2141173A - Geological instrument : en
  • AT155279B - Tubular clamp. : de en
  • CH202145A - Towing device for tow cableways, in particular for skiers. : de en
  • PL27594B1 - Rotary disc, placed horizontally or vertically in the tank of machines for peeling potatoes or fruit. : en pl
  • US2141376A - Frequency regulation of oscillators in ultra short wave receivers : en
  • US2141831A - Range : en
  • US2141443A - production of glycol derivatives : en
  • US2141479A - Tube tester : en
  • DE669489C - Process for re-impregnating standing wooden poles : de en
  • CH201944A - Process for the production of magnesium compounds from magnesium-containing materials by means of mineral acids. : de en
  • CH202062A - Electric spark plug with automatic spark point cleaning for explosion engines. : de en
  • AT155285B - DC motor. : de en
  • USD112692S - Design fob a smoker s stand : en
  • US2141294A - Embroidering machine : en
  • DK55615C - Coil-type current transformer with high current load capacity. : da en
  • DE669656C - Knee shoe for pit construction : de en
  • US2141300A - Crop lifter : en
  • US2141452A - Means for launching lifeboats : en
  • US2141971A - Portable electric drill and the like : en
  • US2141227A - Electric switch : en
  • US2141628A - Gravity measuring instrument : en
  • US2141618A - Valve for can filling machines : en
  • AT155284B - Process for the production of small-area dry rectifiers. : de en
  • AT155349B - Mechanical combustion equipment. : de en
  • DE669667C - Changeover flap in the air duct intersection of air heaters : de en
  • US2141998A - Method of lasting skeleton insoles : en
  • US2142063A - Stage curtain rigging : en
  • US2141706A - Wire fabric joint and method of producing same : en
  • PL27665B1 - A method of carrying out catalytic gas reactions in the presence of solid catalysts. : en pl
  • US2141261A - Method and apparatus for collecting soil gas samples : en
  • US2142010A - Apparatus for cleaning sand : en
  • US2141411A - Television amplifier : en
  • US2141696A - Storm center locator : en
  • US2141960A - Motion picture camera and the like : en
  • PL27523B1 - The method of separating, especially from the air, noble gases, boiling more difficult than oxygen, and a device for carrying out the method. : en pl
  • FR835652A - Wave transmission system : en fr
  • CA378536A - Camera body shutter release : en fr
  • CA378577A - Fibrous sheet material drawing method : en fr
  • US2141846A - High tension switch : en
  • AT155339B - Pneumatic suspension, in particular for air-filled seats made of rubber or the like in motor vehicles. : de en
  • CH202036A - Process for the production of valve housings composed mainly of pipe sections. : de en
  • CH202050A - Two-stroke internal combustion engine systems on vehicles, in particular on submarines. : de en
  • US2141222A - Fastener : en
  • US2142029A - Combined delayed trip and spindle stop mechanism for machine tools : en
  • US2141586A - Automatic roaster : en
  • US2141906A - Bag : en
  • DE669522C - Translator for values represented according to a combination system : de en
  • GR7897B - AUTOMATIC ELECTRIC WATCH OF RADIO AND OTHER USES. : el en
  • CH202023A - Razor. : de en
  • US2141870A - Combined bottle stopper and liquid measuring device : en
  • US2141783A - Pocket ash receiver : en
  • CH202018A - Device for quench hardening of rail head surfaces, respectively. a longitudinal surface of similar elongated workpieces. : de en
  • AT155263B - For loop-forming machines certain set of needles or the like. : de en
  • CH202103A - Device for correcting knock knees and bow legs. : de en
  • PL27623B1 - A device for the helical twisting of the bags of cotton wool or the like and for inserting the bags into cigarette tubes. : en pl
  • US2141532A - Flexible chair back construction : en
  • PL27525B1 - A device for air cooling internal combustion engines with a horizontal arrangement of cylinders, placed opposite on both sides of the crankshaft. : en pl
  • US2141519A - Golf club grip : en
  • US2141839A - Transparent hat box : en
  • US2141936A - Switch handle guard : en
  • DE669638C - Safety lock with a drive disk for the bolt that can be rotated by a key or the like : de en
  • AT155304B - Method and device for removing oxygen from gas mixtures. : de en
  • CH201938A - Device for mixing dusty or powdery material using compressed air. : de en
  • CA378558A - Sausage casing drying method : en fr
  • CA378615A - Clothes wringer : en fr
  • AT155316B - Process for the preparation of formaldehyde sodium sulfoxylates from arsenobenzene compounds. : de en
  • DE669473C - Bolt with a steel insert : de en
  • DE669660C - Process for the production of liquid hydrocarbon oils by pressure hydrogenation of solid carbonaceous substances : de en
  • DE669641C - Device for lifting out feed potato mass from feed silos : de en
  • GB497911A - Improvements in or relating to vertical chamber ovens for producing gas and coke : en
  • CA378564A - Boring tool : en fr
  • CH202071A - Converter for converting single-phase current into direct current, especially for electric traction vehicles. : de en
  • GB497787A - Improvements in or relating to gas raid shelters : en
  • CA378597A - Drinking tube making machine : en fr
  • CH202151A - Anti-skid device for vehicles with at least two single-phase motors. : de en
  • DE669498C - Power or working machine with pistons rotating always in the same direction of rotation with periodically changing ratio of their angular velocity : de en
  • DE669506C - Pressurized gas nozzle switch : de en
  • CA378555A - Paper machine device : en fr
  • CH202027A - Button with interchangeable top. : de en
  • AT155283B - Reinforcement for covered lead-sheathed lines or the like. : de en
  • CH201934A - Orthopedic footwear with insole. : de en
  • CH202083A - Method and arrangement for the operation of elastic converters. : de en
  • CH201932A - Breast formers for corselets, brassieres and the like. : de en
  • CH202128A - Valve bag filling machine. : en fr
  • US2141614A - Oven valve and the like : en
  • CH201908A - Suspension device, in particular for cloakroom items. : de en
  • DE669471C - Device for axially moving shafts, in particular grinding shafts, back and forth by means of a swash plate : de en
  • CH201921A - A method of manufacturing a yarn made from artificial textile fibers. : en fr
  • CH202161A - Process for the preparation of a new aminoketone. : de en
  • GB497786A - Improvements in the treatment of solid or liquid fuel : en
  • US2141918A - Refrigerator cabinet : en
  • US2141185A - Reforming of naphtha : en
  • CH202141A - Bicycle dynamo with signal light. : de en
  • US2141234A - Power transmission : en
  • US2141412A - Detector for television : en
  • DE669533C - Mixing device for different colored masses for the production of patterned artificial stones : de en
  • US2141932A - Process for sealing receptacles : en
  • US2141991A - Plaque holder and blank : en
  • FR835609A - Graphics making it easy to find and read in a city guide, traffic signs and other related information : en fr
  • GB498032A - Apparatus for electrically testing the thickness of coatings : en
  • DE669532C - Device for cutting clay pipes from a strand of clay which is guided between sliding rollers : de en
  • US2141311A - Food handling apparatus : en
  • US2141348A - Replaceable sash and frame for same : en
  • US2141934A - Belt driven wire spooler : en
  • DE669444C - Automatic clutch for vehicles : de en
  • US2141302A - Tire cover lock : en
  • CA378611A - Airplane : en fr
  • CH201967A - Art mass. : de en
  • USD112704S - Design for a bottle : en
  • PL27653B1 - Adapterless timing for piston machines. : en pl
  • GB497782A - An improved manufacture of lubricants : en
  • PL27579B1 - Braking device, operating with a working medium under pressure. : en pl
  • FR835597A - Aero-heater : en fr
  • GB497925A - A fluid pressure measuring device more especially for indicating at a distance the level of liquid in a tank : en
  • GB498009A - Improvements relating to a sensitive-paper holder for use with photographic printers : en
  • FR835732A - Improvements to personal protective equipment against harmful gases : en fr
  • CH201920A - Spinning device for the production of rayon, man-made staple fibers, artificial horsehair, ribbons and the like. : de en
  • CA378603A - Alarm clock : en fr
  • CH202064A - Process for the production of dry ice. : de en
  • FR835610A - Apparatus for the production of model wax copings for cast dental crown liners : en fr
  • GB498038A - Improvements in and relating to lathes and like machine tools having indexible turrets : en
  • US2141625A - Storage battery charge indicating means : en
  • GB497881A - Indicating head for ascertaining the angular position of a rotary shaft of an ignition apparatus for internal combustion engines relatively to a fixed reference mark : en
  • GB497924A - Improvements in and relating to electric heating apparatus, suitable for cooking and other purposes : en
  • GB498037A - Improvements in or relating to high frequency signalling systems : en
  • FR835751A - Method for increasing the yield of image decomposition tubes with charge accumulation : en fr
  • FR835551A - Burner for air heaters : en fr
  • PL27548B1 - Air vent for fuel lines of transportable internal combustion engines, especially aircraft internal combustion engines. : en pl
  • US2141326A - Telegraph regenerating system : en
  • US2141573A - Antenna coupling system : en
  • USD112674S - Design for a game device : en
  • CA378503A - Radio remote control system : en fr
  • US2141273A - Paper machinery : en
  • US2141493A - Pick-up mechanism : en
  • US2141555A - Gyroscopic aircraft instrument : en
  • US2141756A - Multirange receiver : en
  • US2142049A - Method of increasing the efficiency of resin bonded grinding wheels : en
  • FR49424E - Process for preparing hydrocarbons of interest and their derivatives from carbon monoxide and hydrogen : en fr
  • DK55623C - Deep mold for the production of hollow moldings of cellulose derivatives and similar synthetic materials. : da en
  • GR7904B - HAZARDOUS METHOD OF USING HYDROGEN TO FILL BALLOONS AND SIMILAR. : el en
  • US2142062A - Proportioning apparatus : en
  • DK55617C - Procedure for the manufacture of internally mirrored electric filament lamps. : da en
  • PL27676B1 - The method of producing dithionites. : en pl
  • DE669449C - Magnetic electric small machine, especially for bicycle lights : de en
  • DE669591C - Method and device for charging chamber furnaces for the production of gas and coke with loose coal and for the simultaneous compression of the same : de en
  • US2141187A - Grinding fixture : en
  • US2141563A - Multiple fuse plug : en
  • US2142077A - Alkali-resisting phenolic aldehyde siccative composition and process of making same : en
  • FR835725A - High strength screw fixing : en fr
  • GB497920A - Improvements in and relating to screen wipers : en
  • US2141958A - Game : en
  • PL27561B1 - Machine for washing linen. : en pl
  • GB498013A - Improvements in or relating to apparatus for the centrifugal moulding of concrete pipes and the like : en
  • US2141248A - Means for the bulk measurement of tapes from different rolls : en
  • US2141794A - Apparatus for administering anesthetics : en
  • DE669560C - Speech counter for telephone stations : de en
  • FR835706A - Improvements to water softening apparatus of the base exchange type or other analogues : en fr
  • ES144185A2 - IMPROVEMENTS IN THE OBJECT OF PATENT NUMBER 143453 : en es
  • US2141455A - Process of degrading protein products : en
  • GB497819A - Improvements in liquid contact electric switches : en
  • CA378542A - Photographic camera : en fr
  • CA378574A - Caustic solution purification : en fr
  • PL27635B1 - A cooking vessel that is placed in the teapot. : en pl
  • US2141343A - Electrical system : en
  • USD112711S - Design fob a housecoat : en
  • US2141482A - Logging conveyer : en
  • US2141959A - Leakproofing packed joint in gas distribution systems : en
  • US2141303A - Electric discharge tube : en
  • GB497947A - Improvements in or relating to control mechanism incorporating a stabilising device : en
  • DE669460C - Automatic dumping scale : de en
  • CA378583A - Textile material production : en fr
  • US2141233A - Manufally propelled inertia vehicle : en
  • US2141646A - Device for detecting ethyl alcohol : en
  • US2141980A - Automatic signaling apparatus : en
  • FR835554A - Process for preparing ring-substituted aryl-aliphatic acids : en fr
  • GB497927A - Improvements in or relating to apparatus for baking radiator cores or the like : en
  • US2141723A - Brake : en
  • US2141864A - Convertible railway vehicle : en
  • SE93955C1 - : en
  • US2141230A - Asphalt emulsion : en
  • US2141588A - Spring knotting machine : en
  • US2141735A - Stringed instrument : en
  • US2141755A - Safety razor and blade : en
  • PL27628B1 - fet. 47 c, le. Clutch [friction. : en pl
  • US2141705A - Demand feed system : en
  • US2141796A - Transmission band : en
  • USD112685S - Design for a weighing scale : en
  • FR835632A - Control and adjustment device for radio receivers : en fr
  • GB498134A - Improvements in or relating to mosaic electrode structures for use in cathode ray apparatus for television and similar purposes : en
  • CH201983A - Missile fuze. : de en
  • US2141635A - Automobile frame : en
  • PL27550B1 - Method for the production of thiomoformic acid amides : en pl
  • CA378596A - Dental film holder : en fr
  • GB497810A - Improvements relating to electrical plug and socket connectors : en
  • US2141558A - Snow plow attachment for motor vehicles : en
  • US2141825A - Thermoresponsive control switch : en
  • US2142027A - Indicating means : en
  • GB497872A - A combination slotted bolt and slot indicator with an adjustable locking nut : en
  • FR835603A - Improvements to the control of automobile windows : en fr
  • DE669517C - Double-walled insulating vessel, the outer flask of which is inseparably surrounded by a protective cover : de en
  • GB497804A - Improvements in swath turners and side delivery rakes : en
  • US2142041A - Counter slashing machine : en
  • CA378505A - Telephone system : en fr
  • FR835596A - Game : en fr
  • GB497930A - Improved indicating instrument more especially for aircraft : en
  • GB497747A - Improvements in heavy alloys : en
  • GB497837A - Improvements in or relating to prepayment mechanisms particularly for use in connection with electricity meters : en
  • AT155322B - Process for the conversion of hydrocarbon oils. : de en
  • DE669453C - Belt conveyor device for bast fiber processing machines : de en
  • PL27643B1 - Spoeeb for generating heat and cold, and a device for carrying out this method. : en pl
  • AT155272B - Charging system for high pressure storage. : de en
  • FR835753A - Improvements to devices for lighting indicating instruments : en fr
  • CA378533A - Film winding mechanism : en fr
  • CH202028A - Safety clip usable in particular on bracelets, necklaces or the like. : en fr
  • FR835558A - Photographic slit shutter : en fr
  • US2141406A - Process of production of succinc acid : en
  • US2141275A - Method for hydrating olefines : en
  • US2141441A - Electric lighting fixture : en
  • FR835613A - Improvements in the assembly of wireless telegraphy and telephony transmitting devices : en fr
  • US2141323A - Signaling apparatus : en
  • US2141579A - Fishing line drying reel : en
  • US2141926A - Automatic steam heating system for automobiles : en
  • US2142079A - Device for sewing machines : en
  • PL27556B1 - Vibration damping device. : en pl
  • PL27583B1 - Thermostatic apparatus. : en pl
  • DE669621C - Process for refining hydrocarbon oils : de en
  • US2141448A - Packet boxing machine and method : en
  • US2141188A - Signaling system : en
  • US2141472A - Spinning ring and traveler therefor : en
  • FR835569A - Method and device for the heat treatment of metal tapes : en fr
  • US2141297A - Process for recovering oil from petroleum acid sludge : en
  • US2141688A - Brake mechanism : en
  • US2141871A - Combined bottle stopper and measuring device : en
  • US2142044A - Pneumatic valve insides construction : en
  • FR835773A - Improvements to the actuation mechanisms of eclipsable landing gear for aircraft : en fr
  • FR835648A - Improvements in the manufacture of metal boxes or containers and the like : en fr
  • DE669582C - Process for operating internal combustion engines with high-boiling fuels obtained by extraction or pressure hydrogenation of coal : de en
  • FR835795A - Improvement in any ski attachments that only release the foot after checking that the skier's attitude has not been corrected : en fr
  • GB497821A - Improvements in and relating to electric discharge lamp systems : en
  • PL27599B1 - The method of separating solid components of a mixture with different specific weights. : en pl
  • CH202045A - Device for pressure control on rotary lobe compressors. : de en
  • CA378599A - Green forage crop dehydrating apparatus : en fr
  • USD112714S - Design fob a dress ensemble : en
  • GB497945A - Improvements in or relating to the manufacture of embedding masses containing calcium sulphate plaster : en
  • FR835749A - Improvements to hand-held cameras : en fr
  • FR835781A - Dishwasher : en fr
  • GB497756A - Improvements in or relating to machines for sorting perforated record cards : en
  • DE669601C - Non-dripping pouring spout with a tubular suction lifter located in the wall of the spout : de en
  • GB497758A - Improvements in or relating to moving contact electric current converters : en
  • GB497811A - Improvements in electric discharge lamps : en
  • GB497882A - Improvements in or relating to the manufacture of pipe of soft metal : en
  • DE669464C - Process for the production of cylindrical bodies : de en
  • GB497803A - Improvements relating to the mounting and preserving of small botanical and zoological specimens : en
  • CH202159A - Process for the preparation of a diphenyl series hydrazine. : de en
  • US2141352A - Can cover : en
  • US2141409A - Lace fabric : en
  • US2141867A - Electric toaster : en
  • FR835708A - AC machine especially for the production of medium and high frequencies : en fr
  • GB498007A - Process for producing catalysts for benzine synthesis : en
  • GB497884A - Improvements in hydraulic power transmissions : en
  • DE669569C - Device for post-treatment of spider cake : de en
  • US2141838A - Split cathode multiplier tube : en
  • US2141747A - Educational appliance : en
  • FR835754A - Measuring or adjusting device : en fr
  • IE15333L - Preparing paper-pulp from bagasse, etc : en
  • DE669421C - Circuit arrangement for transmitting messages, in particular fire or police messages : de en
  • GB497761A - Improvements in or relating to radio direction finding receivers : en
  • GB497896A - Improvements in and relating to the tempering of hollow glass articles : en
  • GR7893B - PAPER CUP TYPE. : el en
  • US2141397A - Building system : en
  • US2141808A - Combination solid and gaseous fuel cooking range : en
  • US2141226A - Bakery machinery : en
  • PL27524B1 - Method of obtaining metallic sodium. : en pl
  • US2141914A - Method and apparatus for conditioning and filing tabulator cards : en
  • US2141630A - Machine for coating tubes internally : en
  • US2141672A - Bailer : en
  • US2141736A - Offset die : en
  • DE669507C - Stage signal box with pulleys : de en
  • GB497956A - Improved bracing for electrolytic cell bodies : en
  • AT155259B - Method and device for the production of moldings, in particular panels made of fibrous materials and hydraulic binders. : de en
  • CH202135A - Device on motor vehicles for holding the brakes in their activated position. : de en
  • US2141350A - Drawing apparatus : en
  • FR835617A - Device for operating two synchronous coaxial propellers rotating in opposite directions with a single motor : en fr
  • GB497957A - Improvements in the protection of containers and the like from destruction by high internal pressure : en
  • US2141695A - Saw set : en
  • FR835660A - Trio trains : en fr
  • US2141694A - Conveying apparatus for hot materials : en
  • FR835710A - Artificial fly mounted on a multi-branch hook : en fr
  • US2141982A - Rotary motor : en
  • GB497886A - Anti-skid devices for road vehicles : en
  • AT155331B - Drive device for watercraft, aircraft and. like : de en
  • CA378550A - Crank-case ventilating system : en fr
  • US2141182A - Governor for tube cleaner motors : en
  • US2141866A - License plate holder device : en
  • FR835579A - AC voltage multiplier : en fr
  • FR835631A - Water-soluble azo dyes and method of preparing these dyes : en fr
  • GB497738A - Improvement in hexoic acid esters : en
  • FR835775A - Automatic coupling device for wagons and railway cars : en fr
  • GB497820A - Improvements in wringers : en
  • US2141506A - Apparatus for charging furnaces : en
  • DE669643C - Circuit arrangement for decoupling lines for message purposes by means of negative resistors : de en
  • GB497918A - A method of treating articles of wood or other fibrous material : en
  • GB497816A - Process and apparatus for impregnating wood with rubber : en
  • GB498229A - Brake control mechanism : en
  • USD112722S - Design for a dress : en
  • GB497909A - Improvements in or relating to bottom rail construction for vehicle bodies : en
  • US2141536A - Aerial mail exchange : en
  • US2141538A - Baby carriage : en
  • CA378506A - Shortening compound : en fr
  • CA378572A - Container cleaning apparatus : en fr
  • CH202017A - Drum furnace for bright annealing of metal objects. : de en
  • US2141198A - Light-colored high-melting-point resin adapted for varnish making and process of making same and coating compositions therefrom : en
  • US2141282A - Wave transmission : en
  • US2141578A - Conveyer for drying plants : en
  • AT155306B - Process for the production of threads or films from cellulose acetate. : de en
  • CA378523A - Radio transmitter ringing circuit : en fr
  • CH201991A - Housing made of molding compound, in particular synthetic resin, for measuring technology apparatus, such as electrical measuring devices. : de en
  • US2141676A - Lay motion for looms : en
  • CA378610A - Lubricating oil or grease supplying apparatus : en fr
  • CH202046A - Device for regulating the output of single-cell rotary lobe compressors. : de en
  • CH202111A - Fire extinguisher. : en fr
  • US2142007A - Manufacture of artificial silk : en
  • US2141224A - Pruning tool : en
  • US2141520A - Thermostatically controlled mixing valve : en
  • CH202106A - Process for preparing a sulfonic acid amide compound. : de en
  • US2141186A - Saturator for the manufacture of coarse-crystalline sulphate of ammonia : en
  • US2141687A - Hydroxyphenylamino-anthracene and process of making same : en
  • US2141766A - Manufacture of carbon bisulphide : en
  • USD112719S - Design fob a tooth brush : en
  • AT155254B - Carbon sanding bows with metal support. : de en
  • CH202014A - Device for aligning a swiveling rotary indexing table to the axis of the drilling spindle. : de en
  • PL27597B1 - Coal bath oven. : en pl
  • US2141454A - Cattle fly trap : en
  • CH201885A - Floor. : de en
  • US2141171A - Rotary pump or motor : en
  • US2141492A - Cutting tool : en
  • US2141252A - Package : en
  • US2141371A - Apparatus for clarifying liquors containing suspended and flocculent matter, such as sugar juices, and similar liquors : en
  • US2141964A - Recording process and system : en
  • FR835576A - Electric amplifier device : en fr
  • FR835707A - Refrigeration method and system using a plurality of evaporators : en fr
  • US2141284A - Tensile testing apparatus : en
  • US2141852A - Machine for coating printers' rollers : en
  • US2141942A - Photoelectric relay : en
  • CH201914A - Seating. : de en
  • US2141601A - Suppressing wax in oils : en
  • US2141708A - Method of laying wood flooring : en
  • CH202053A - Engine comprising at least one pair of diametrically opposed cylinders. : en fr
  • CH202113A - Lottery draw log book. : de en
  • CH202059A - Fuel injection pump. : de en
  • CH202052A - Two-stroke internal combustion engine. : de en
  • CA378569A - Lead styphnate : en fr
  • US2141365A - Fuel regulator for carburetors : en
  • US2141817A - Fishing reel : en
  • CH201881A - Embedding process. : de en
  • CH201889A - Blind arm. : de en
  • US2141815A - Powder dispenser : en
  • US2141772A - Circuit controlling device : en
  • CA378510A - Photographic paper : en fr
  • DE669679C - Hollow-pressed bow handle made of sheet metal, especially for furniture, doors or the like. : de en
  • FR835581A - Method of operation of an electron multiplier : en fr
  • FR835797A - Brake improvements for cycles and the like : en fr
  • CH202003A - Process for the production of moldings. : de en
  • CH202021A - Process for the production of artificially grained veneers. : de en
  • CH202079A - Process for the prevention of fires as a result of overvoltages in electrical systems in buildings, and system manufactured according to the process. : de en
  • CH201926A - Process for the production of a condensation product. : de en
  • GR7900B - INDEX OF GAS STERILIZATION AND GENERAL GARMENTS. : el en
  • GB497744A - Foot arch support : en
  • CH202054A - Method and device for operating internal combustion engines for pulverulent fuels. : de en
  • CH202119A - Carrier made of insulating material with metal parts attached to it that are under high-frequency voltage during operation. : de en
  • CH202084A - Electric current conversion installation. : en fr
  • DE669615C - Protection device for DC motors that are used to drive machines with large centrifugal masses : de en
  • CH202026A - Sand sprayer. : de en
  • AT155291B - Process for the projection of electrical recordings, in particular television images. : de en
  • PL27545B1 - A method of producing blue-green to green dyes of the phthalocyanine series. : en pl
  • PL27577B1 - kt> ottY'r / 0b Vibration damper, especially for damping vibrations that occur when working in a combustion engine. : en pl
  • US2142009A - Embossing machine : en
  • USD112693S - Design for a smoking stand : en
  • USD112733S - Design for an embroidered textile : en
  • US2141358A - Fluid pressure brake : en
  • USD112749S - Design fob a chair : en
  • CH202037A - Gate valve with a conical valve body. : de en
  • US2141542A - Tire inflating device : en
  • US2141566A - Stone-cutting apparatus : en
  • US2141872A - Compounds of the pyrazolanthrone series : en
  • US2141546A - Acryloxy carboxylic acids and their esters : en
  • US2141591A - Method of and means for creating a moist atmosphere in bakers' ovens and other chambers : en
  • USD112744S - Design for a base for picture frames : en
  • US2141354A - Method of treating photographic film : en
  • US2141661A - Wire twisting apparatus : en
  • US2141278A - Switch mechanism : en
  • US2141477A - Process of preparing aluminum salts of lower aliphatic acids : en
  • PL27632B1 - ¦ / co, * iS / oi Smooth or threaded pin, cotter pin or similar. : en pl
  • US2141856A - Method of making receptacle sealing caps : en
  • USD112712S - Design for a dress or similar article : en
  • PL27636B1 - Leveling valve, especially for switching clutch with oil. : en pl
  • US2141260A - Governing mechanism for elastic fluid turbines : en
  • US2141572A - Closure device for collapsible tubes : en
  • US2141889A - Electrical plug and socket structure : en
  • US2142021A - Automatic dynamic balancer for machine tools : en
  • US2141288A - Machine for assembling ophthalmic mountings : en
  • US2141424A - Counterbalance crank for pumping units : en
  • US2141430A - Amusement device : en
  • US2141966A - Hydraulic brake : en
  • US2142019A - Holder : en
  • US2142073A - Truss for human rupture : en
  • US2141894A - Cable for transmitting electric power : en
  • USD112727S - Design for a suit : en
  • AT155262B - Powdered substances with excellent adhesion. : de en
  • AT155297B - Barrel weight scale. : de en
  • GB497916A - Improvements in and relating to air-depolarized galvenic cells and electrode therefor : en
  • CA378617A - Internal combustion engine : en fr
  • US2141773A - Recovery of fluorine compounds from water vapor containing volatile fluorine compounds : en
  • GB498228A - Improvements in and relating to massage apparatus : en
  • GB497905A - Improvements in or relating to container barrels for ice cream and the like : en
  • DE669383C - Process for the production of chlorine dioxide : de en
  • GB498128A - Improvements in the electrical production of musical tones by electro-static means : en
  • CA378527A - Welding method : en fr
  • GB497845A - Improvements relating to electric welding : en
  • GB497932A - Improvements in or relating to painting machines for laying coloured lines and various markings on roads, hard courts, parking grounds and the like : en
  • FR835776A - Improvements to optical deflector devices for viewfinders and rangefinders of cameras : en fr
  • FR835782A - Warehouse silo for the storage of grains and cereals : en fr
  • USD112728S - Design for a power driven hand tool : en
  • US2141709A - Cap retainer : en
  • DE669462C - Shaking table for aptitude test of devices or the like. : de en
  • CA378551A - Sedimentation apparatus : en fr
  • CH202032A - Process for making a pipe connection. : de en
  • DE669544C - Device for grid control of gas or vapor discharge vessels : de en
  • DE669488C - Suction mouthpiece for vacuum cleaner : de en
  • GB497794A - Improvements relating to foundations of buildings and other structures : en
  • US2141207A - Sign : en
  • US2141653A - Tube frame for axminster looms : en
  • PL27613B1 - Milling machine working table drive. : en pl
  • PL27651B1 - Method for dehydrogenation of saturated hydrocarbons. : en pl
  • US2141545A - Charging apparatus for carbonizing plants : en
  • CH201977A - Machine for transferring photographic transparencies. : de en
  • DE669648C - Starting device for internal combustion engines : de en
  • GB498130A - Improvements in electrical musical instruments : en
  • GB497937A - Improvements in and relating to the production of organic acids and salts thereof : en
  • US2141855A - Air conditioning system : en
  • FR835712A - Gasifier : en fr
  • US2142060A - Prefabricated building : en
  • CH202149A - Electric bogie locomotive with single axle drive. : de en
  • DK55626C - Bearing for which water or an aqueous liquid is used as a lubricant. : da en
  • US2141541A - Hydraulic damping device : en
  • AT155324B - Process for producing a porous building material. : de en
  • FR835704A - Refinements to gas mask filter cartridges : en fr
  • FR835770A - New reversible device with directed listening : en fr
  • FR835677A - Circular saw pliers for cutting tubes or rods of small sections to length : en fr
  • FR835663A - Window with two tilting and sliding frames : en fr
  • GB497862A - Improvements in or relating to the manufacture of azo dyestuffs : en
  • US2141375A - Photoelectric plate for television tube : en
  • US2141949A - Loudspeaker : en
  • US2141402A - Ornamental device : en
  • US2141921A - Rectifier : en
  • US2142045A - Flux coated welding rod : en
  • PL27669B1 - A device for arranging the weekly timetable : en pl
  • GB498011A - Improvements in the manufacture and production of high quality siccatives : en
  • CH202020A - Method of making plywood. : de en
  • US2142057A - Lapping machine : en
  • AT155320B - Process and device for the production of liquid fuels with a high anti-knock value through thermal decomposition of wood, peat and other vegetables. : de en
  • CA378595A - Razor blade sharpening device : en fr
  • DE669617C - Device for displaying the equality or difference between the phases of two high-frequency alternating voltages using a Braun tube : de en
  • GB497952A - Improvements in pendular units non-responsive to centrifugal force : en
  • PL27678B1 - Electric hair wave pliers. : en pl
  • US2141385A - Hair clamp and supporting bracket : en
  • US2141400A - Expanded metal product : en
  • US2141878A - Fastener member and installation of the same : en
  • US2142012A - Liquefier : en
  • PL27582B1 - A method for fusing tungsten or molybdenum wires for electricity into quartz vessels. : en pl
  • US2141613A - Coil selector : en
  • US2142004A - Cylinder head for two-cycle doublebore-cylinder internal combustion engines : en
  • AT155252B - Electric discharge tube. : de en
  • BE431288A - : en
  • FR835629A - Automotive headlights improvements : en fr
  • FR835690A - Process for the preparation of a tetralin derivative and product obtained : en fr
  • FR835699A - : fr
  • GB497855A - Improvements in or relating to zinc sulphide pigments and methods of preparing same : en
  • GB497880A - Electric incandescent lamp : en
  • US2141754A - Lubricating device for rings and travelers : en
  • US2141928A - Welding flux : en
  • US2141956A - Rail car : en
  • US2141321A - Brake beam support : en
  • GB497741A - Method for introducing gases into liquids : en
  • US2141685A - Hinger : en
  • US2141933A - Cathode : en
  • FR835758A - Advanced spark plug for internal combustion or explosion engines : en fr
  • DE669529C - Impeller, especially for tractors : de en
  • FR835641A - Manufacturing process of new monoazo dyes : en fr
  • CA378587A - Pan lifte : en fr
  • CH201911A - Furniture, preferably seating. : de en
  • CH202157A - Process for the preparation of a capillary active agent. : de en
  • US2141556A - Sealed container : en
  • US2141751A - Adjustable work bed : en
  • US2141823A - Abrading liner : en
  • FR835639A - Protection of electrical cables against corrosion : en fr
  • DE669658C - Process for increasing the dyeability of cellulose fibers using acidic dyes : de en
  • GB497807A - Improvements in rotary screens for paper stock : en
  • CA378566A - Electrolytic condenser : en fr
  • US2141223A - Culinary utensil : en
  • US2141620A - Stoker : en
  • DE669466C - Basic rangefinder for photographic use : de en
  • DE669470C - Valve and control device for sausage filling devices : de en
  • DE669604C - Welding socket connection : de en
  • FR835799A - Advanced switch for electromagnetically operated mechanisms : en fr
  • GB497762A - An improved process for preparing resistant varnish coating on wood : en
  • GB497883A - Improvements in or relating to physical exercise apparatus : en
  • FR835713A - Improvements to discharge tube circuits : en fr
  • FR835735A - Signal transmission system : en fr
  • DE669487C - Method of making plaster bandages : de en
  • GB497938A - Aerial forts : en
  • DE669600C - Deck device for flat weft knitting machines with Jacquardpetinet device : de en
  • GB497767A - Improvements in or relating to the manufacture and use of artificial resins and the like : en
  • CA378524A - Amino alcohol acrylate : en fr
  • CH201940A - Process for preserving the flavoring substances of a dry soluble coffee extract. : de en
  • CH202174A - Process for the preparation of a tanning substance. : de en
  • CH202012A - Method for controlling an automatic milling machine. : de en
  • AT155256B - Repeatedly flammable ignition rod. : de en
  • US2141693A - Terracing and ditching machine : en
  • CH201939A - Steam oven with combined heating. : de en
  • GR7887B - WAY OF FLAVORING AND INCREASING OR IMPROVING THE TASTE OF TURKEY. : el en
  • CH201896A - Key. : de en
  • US2141177A - Sulphurous dyestuffs and process of making same : en
  • USD112675S - Design for a swivel joint fitting : en
  • USD112757S - Design for a crane cab : en
  • PL27554B1 - Machine for ironing linen. : en pl
  • CA378570A - Lamp socket : en fr
  • DE669510C - Arrangement for regulating the operating parameters of direct current machines fed from direct current networks using at least two grid-controlled steam or gas discharge paths : de en
  • AT155292B - Picture sound receiver for television purposes with simultaneous adjustment for picture and sound. : de en
  • CH202130A - Tensioning mechanism intended to be used with a mechanism for assembling the ends of a metal strapping tie. : en fr
  • US2141741A - Stove : en
  • US2141476A - Telephone system : en
  • CH201935A - Shoe heel. : de en
  • CH202110A - Tassel reservoir. : en fr
  • US2141484A - Plant cover : en
  • AT155318B - Process for producing colored images. : de en
  • US2141515A - Overhead door construction : en
  • US2141797A - Fitting : en
  • US2142071A - Plastering machine : en
  • PL27590B1 - The method of purifying potassium hydroxide solutions. : en pl
  • CA378535A - Document reproducing machine : en fr
  • CH202108A - Method of making a face mask composition. : de en
  • CA378511A - Cotter pin locking device : en fr
  • PL27647B1 - The arrangement of capacitors, especially high-current capacitors. : en pl
  • US2141743A - Display container : en
  • GB497775A - Improvements in and relating to fluid pressure measuring instruments for testing oxygen breathing apparatus : en
  • CA378541A - Document recording apparatus : en fr
  • DE669590C - Water reserve : de en
  • US2141599A - Checking device for multiplying machines : en
  • US2141767A - Railway truck : en
  • GR7901B - CAR SHIP. : el en
  • FR835557A - Crankshaft device for internal combustion or internal combustion engines : en fr
  • IE15440L - Pyrolytic reforming of oils : en
  • PL27664B1 - A regulating device for setting the fuel injection time by means of a servomotor for internal combustion injection engines. : en pl
  • GB497809A - Improvements relating to thermal cut-outs for electrically heated receptacles : en
  • USD112738S - Design for a frame for a sanctuary : en
  • US2141968A - Window fixture : en
  • BE431044R - Improvements to x-ray generators : en fr
  • US2141210A - Automobile signal device : en
  • FR835552A - Preparation of concentrated nitric acid starting from nitrous gas : en fr
  • US2141495A - Electric clock : en
  • US2141865A - Swivel : en
  • US2141788A - Manufacture of rubber articles : en
  • US2141799A - Boat : en
  • US2141947A - Bread slicer : en
  • FR49444E - Process for transforming olefins into valuable high molecular weight products : en fr
  • US2141247A - Arrangement for wireless signaling : en
  • US2141347A - Towel rack : en
  • US2141920A - Conveying apparatus : en
  • DE669551C - Sealing of the parting line between the upper and lower part of a centrifugal drum by means of a sealing ring : de en
  • PL27537B1 - Connection of the kitchen range with the chimney pipe. : en pl
  • US2141293A - Safety container for valuables : en
  • US2141392A - Photoengraving camera : en
  • PL27569B1 - A device containing an intermediate cathode lamp powered by a DC source. : en pl
  • US2141246A - Heart beat indicator scale : en
  • US2141470A - Container treating machine : en
  • US2141800A - Core drill construction : en
  • FR835746A - A method for performing chemical and mechanical reactions inside liquids, suspensions, emulsions, and the like : en fr
  • GR7888B - ELASTIC SEAT CLAMPS. : el en
  • DE669482C - Steam turbine with pure radial blades in the moisture area of the steam : de en
  • FR835785A - Improvements to t devices. s. f. : en fr
  • DE669508C - Resistance consisting of more than two resistance elements with gradual regulation : de en
  • PL27616B1 - 46-C °, 1 IbjUZf 'Rotary timing slide for fuel injection pumps. : en pl
  • US2141373A - Electrical testing system : en
  • US2141447A - Slip cover construction : en
  • US2141464A - Regulating apparatus : en
  • US2142056A - Windshield clearing system : en
  • USD112717S - Design for a dress ensemble : en
  • DE669502C - Braking device for vehicles, in particular rail vehicles : de en
  • DE669585C - Window frames for attachment to fabric or other thin-walled materials, in particular the top materials for motor vehicles : de en
  • DE669609C - Separation of liquid components from flowing gases or vapors : de en
  • DE669465C - Luminous image : de en
  • GB497949A - Improvements in electric arc welding : en
  • DE669618C - Ignition device for vacuum vessels with arc discharge and liquid metallic cathode : de en
  • FR835618A - Switching liquid for high power switches with low liquid volume : en fr
  • USD112698S - Design fob a vaporizer : en
  • GB498040A - Improvements in typewriting machines : en
  • DE669450C - Device to avoid overloading constant current machines connected in series : de en
  • GB497852A - An improved device for preventing the condensation of steam on windows or elsewhere in a room or for removing such condensation : en
  • FR835644A - Improvements to pulp regulators for paper machines : en fr
  • FR835764A - Rocket : en fr
  • GB497788A - Improvements in shaped bodies, such as thin sheets, threads or the like, composed essentially of rubber hydrochloride and methods of producing such bodies : en
  • US2141511A - Solvent extraction of mineral lubricating oils : en
  • FR835714A - Device with continuous regeneration device for any physical or chemical treatment of liquids and in particular water : en fr
  • US2141235A - Process and apparatus for making arcuately plaited products : en
  • BE431284A - Process for the preparation of anilide derivatives of p-aminobenzenesulfonic acid : en fr
  • US2141778A - Hand operated brake lever : en
  • US2142053A - Article dispensing apparatus : en
  • US2141271A - Upholstery : en
  • US2141337A - Dispensing unit : en
  • US2141841A - Rotary rock bit : en
  • US2142039A - Thermoplastic pressure sensitive composition and sheet materials coated with same : en
  • CH202175A - Process for the production of a resin-like, almost water-white product from a natural resin. : de en
  • CA378526A - Rubber vulcanization : en fr
  • DE669546C - Process for the production of neutral and bleached soaps : de en
  • FR835679A - Modulation system : en fr
  • GB497759A - Improvements in or relating to staple inserting devices : en
  • GB498136A - Manufacture of amide-like condensation products : en
  • FR835791A - Insulating and self-adjusting concrete block : en fr
  • GB497783A - Improvements in or relating to tobacco pipes, cigarette holders and the like : en
  • GB497894A - Improvements in or relating to embroidery machines and the like : en
  • GB497774A - Improvements relating to the tuning of radio receivers : en
  • US2141475A - Foldable metal furniture : en
  • US2141667A - Water-insoluble azo dyestuffs : en
  • FR835553A - Water-soluble mono-azo dyes and process for the preparation thereof : en fr
  • FR835556A - Selector network formed by wave filters of the band-pass type, particularly usable in telephony : en fr
  • US2141399A - Miniature structure and blank therefor : en
  • DE669441C - Sheet feeding device for printing machines : de en
  • PL27617B1 - Star two-stroke internal combustion engine with piston blow pump. : en pl
  • CA378578A - Power hammer : en fr
  • CH201899A - Retort for charring and dry distillation of wood and other substances. : de en
  • US2141522A - Cushioning device for railroad cars : en
  • US2141587A - Electric lamp socket : en
  • US2141979A - Process for treating sewage to purify the same : en
  • US2141567A - Stone-working tool : en
  • US2142008A - Electrical refrigerator shelf : en
  • US2141787A - Igniter assembly : en
  • US2141231A - Electrical musical instrument : en
  • US2141777A - Racing game : en
  • US2141401A - Gas turbine : en
  • DE669552C - Preserving jar with a semicircular cross-section having a groove in the edge of the vessel : de en
  • DE669497C - Process for the production of clear, crack-free crystals after breeding from lye : de en
  • PL27535B1 - A furnace with forced circulation of flames in the furnace chamber. : en pl
  • US2141166A - Hydraulic transmission : en
  • US2141818A - Clamp device : en
  • CH202162A - Process for the preparation of a new aminoketone. : de en
  • PL27570B1 - Electric bulb from an egg-shaped bank, part of which is designed as a reflector. : en pl
  • US2141719A - Method for making bumpers : en
  • US2141715A - Refrigeration mechanism : en
  • CH201980A - Device for attaching seal skins and the like to skis. : de en
  • US2141175A - Distant reading electromagnetic balance : en
  • US2141785A - Telephone mechanism : en
  • CH201949A - Process for the production of a highly concentrated solution of partially saponified, highly viscous stable acetyl cellulose. : de en
  • PL27532B1 - The method of cutting fabrics for women's and children's clothes and a template for this method. : en pl
  • PL27580B1 - Automatic buffer brake for railway carriages. : en pl
  • CH202049A - Four-stroke internal combustion engine. : en fr
  • CH202129A - Tube and method and device for producing the same. : de en
  • US2141879A - Electric light fixture : en
  • AU106200B2 - Improvements in or relating to printing machines : en
  • CH202035A - Device for adjusting a flow of liquid. : en fr
  • CH201931A - Washing trough. : de en
  • CH201954A - Process for the preparation of pure activators for enzymatic degradation of carbohydrates which do not show any enzyme action. : de en
  • CA378567A - Attrition apparatus : en fr
  • PL27688B1 - Strengthening ring for hollow cylindrical objects. : en pl
  • US2141220A - Spring construction : en
  • US2141320A - Vibrating screen spring : en
  • US2141711A - Automatic air control means : en
  • ES144190A1 - A PROCEDURE FOR MANUFACTURING ANTI-DETONATING FUELS FOR ENGINES : en es
  • DE669548C - Device for curling unvulcanized thin rubber sheets : de en
  • US2141684A - Dispensing device : en
  • DE669481C - Process for briquetting hard coal : de en
  • PL27588B1 - Material imitating karakuli or fancy fur skins. : en pl
  • PL27642B1 - A method of obtaining thermal energy and kinetic energy of gas expansion in a closed cycle and a device for carrying out this method. : en pl
  • US2141228A - Method of converting a sulphite into an oxide and sulphur dioxide : en
  • US2141277A - Interference eliminator : en
  • FR835563A - Bra enhancements : en fr
  • CH202033A - Sealing device with one-piece rings, in particular for pistons of reciprocating engines. : de en
  • US2141415A - Multiple cathode-ray tube : en
  • USD112753S - Design fob an electric table broiler : en
  • AT155251B - High-voltage gas or metal vapor discharge vessel made of glass. : de en
  • DE669632C - Tailstock with core quill under spring pressure : de en
  • CH202107A - Process for the preparation of 3- (bis-dioxypropyl) -amino-4-oxy-5-acetylamino-3'-amino-4'-oxy-arsenobenzene-formaldehyde sulfoxylate sodium. : de en
  • US2141678A - Fluid pressure control mechanism : en
  • PL27685B1 - Drilling shears. : en pl
  • US2141727A - Valve for pneumatic tools : en
  • CH201976A - Process for the production of intaglio printing plates and photographic slide which can be used in this process. : de en
  • CH202042A - Method and device for lowering the press beds of presses for fruit and other fruits. : de en
  • US2141483A - Mechanism for assembling match packets and the like : en
  • US2141847A - Relief valve : en
  • US2141253A - Fibrous silk and the manner of its production : en
  • US2141570A - Concrete and hydraulic cement : en
  • CA378580A - Scaffolding structure : en fr
  • PL27564B1 - : en pl
  • US2142005A - Knock-down structure : en
  • US2141286A - Coupling-on or bridging implement : en
  • US2141459A - Multiple compartment refrigerator : en
  • USD112730S - Design for a lunch box or : en
  • US2141863A - Automatic lubricating device : en
  • USD112708S - Design fob a dress : en
  • US2141489A - High frequency current generating and distribution system : en
  • US2141500A - Trim panel and fastener therefor : en
  • USD112707S - Design for a sanding tool unit : en
  • CH201915A - Writing desk. : de en
  • CH202140A - Air chamber tire and process for its manufacture. : de en
  • CH202096A - Lighting fixtures. : de en
  • PL27534B1 - A method of hardening artificial intestines made of fibrous animal origin, e.g. made of skin or muscles, i.e. making them resistant to the action of water. : en pl
  • USD112686S - Design fob an amusement machine : en
  • PL27630B1 - A device for spraying liquids, especially for spraying milk on drying drums. : en pl
  • US2141287A - Ophthalmic mounting : en
  • AT155258B - Ankle cushions for suffering feet. : de en
  • CH201901A - Cooking appliance. : en fr
  • CH202122A - Fire alarm. : de en
  • DE669540C - Sugar cane mill with three rollers : de en
  • DE669553C - Device to relieve the rope for objects that can be suspended from being lowered, in particular lighting : de en
  • US2141184A - Container : en
  • US2141836A - Charge storage dissector tube : en
  • PL27602B1 - A method for the production of wood pulp strips intended for the production of insulation boards and a device for the application of this method. : en pl
  • US2141753A - Joint stud and process of making same : en
  • CH201981A - Device for connecting a ski to the skier's foot. : de en
  • CH202067A - Battery, especially for balloon probes. : de en
  • US2141916A - Hose for washing machines : en
  • US2141594A - Carburetor : en
  • CA378588A - Package : en fr
  • DE669536C - Warping machine : de en
  • US2141488A - Beadlike metal surface ornamentation : en
  • US2141605A - Solvent refining of oil : en
  • US2141999A - Knitted fabric and method of making same : en
  • AT155345B - Atomizing burners for liquid fuels. : de en
  • CH202183A - Method for the preparation of m-dimethoxy-m-oxy-p-dioxy-fuchson. : de en
  • US2141292A - Radio receiver : en
  • CH202163A - Process for the preparation of a disazo dye. : de en
  • GB497742A - Manufacture of alkylated amino-ketones of the aromatic series : en
  • GB497768A - Improvements in or relating to voltage regulating arrangements : en
  • GB497854A - Improvements in or relating to illuminated indicating apparatus : en
  • US2141159A - bergstrom : en
  • US2141212A - Package collector : en
  • US2141422A - Control device for variable condensers : en
  • CA378576A - Rubber tape : en fr
  • PL27596B1 - A method for the production of casein, suitable for the production of synthetic fibers. : en pl
  • US2141969A - Massage device for tooth brushes : en
  • DE669605C - Pipe connection for the elastic coupling of a smooth pipe end, in particular an asbestos-cement pipe, with a connection piece having a flange : de en
  • US2141339A - Safety razor : en
  • FR835595A - Improvements in processes for obtaining polyoxy-fuchsone derivatives etherified with aliphatic groups : en fr
  • US2141202A - Method of making a diamond tool : en
  • US2141460A - Mechanism for assembling match packets and the like : en
  • DE669537C - Note gate with internal loading : de en
  • FR835650A - Magnetic organ : en fr
  • AT155328B - Device for the automatic delivery of characters on vehicles of all kinds. : de en
  • USD112709S - Design for an alphabet for forming : en
  • US2141501A - Trim panel and fastener therefor : en
  • FR835600A - Mechanism or apparatus for laterally pointing or grinding teeth of rolls or doffers of carding machines and the like : en fr
  • GB497891A - Improvements relating to combined adapters and switches : en
  • US2141901A - Kitchen utensil : en
  • GB497797A - Sliding clasp fastener : en
  • PL27606B1 - A method of producing a durable layer sensitized with cerium sulphate on light printing papers. chromates, : en pl
  • US2141280A - Nut tapping machine : en
  • US2141564A - Store front construction : en
  • US2141940A - Hydraulic power transmission system : en
  • US2141689A - Vehicle control mechanism : en
  • US2141950A - Coin sorter : en
  • US2141450A - Braking mechanism for railway cars : en
  • US2141456A - Method of drawing glass tubing : en
  • GB497769A - Improvements in or relating to vehicle wheels and their manufacture : en
  • DE669626C - Eyeglass temple : de en
  • DK55613C - Electrical resistance. : da en
  • US2141665A - Warp beam and method of making : en
  • USRE20957E - Lubricating composition : en
  • US2141997A - Process for the decomposition of air by liquefaction and rectification : en
  • DE669635C - Lockable overrunning clutch, especially for two-speed gearboxes of motor vehicles : de en
  • DK55630C - Gearbox for crawler vehicles. : da en
  • US2141502A - Venetian blind : en
  • USD112726S - Design for a coat : en
  • CA378554A - Steam generator : en fr
  • FR835778A - Multi-directional control lever for all types of cycle brakes : en fr
  • CH201897A - Glass thread and process for its manufacture. : de en
  • PL27573B1 - Trouser press. : en pl
  • US2142024A - Coating surfaces of zinc-base : en
  • CA378582A - Crepe yarn and fabric : en fr
  • US2141314A - Paper roll holder : en
  • CA378612A - Life preserver : en fr
  • CH202104A - Process for the manufacture of a carrier for pharmaceutical products. : de en
  • FR835598A - Method of coupling photocells and amplifiers in the emission of sound films : en fr
  • FR835721A - Toy cooker : en fr
  • PL27584B3 - The method of producing elastic fabric. : en pl
  • PL27686B1 - A strip for sliding curtains and the method of its production. : en pl
  • US2141895A - Hair clipping and shaving head : en
  • DE669524C - Control device for punch card tabulating machines : de en
  • DK55612C - Filter with piezoelectric crystals. : da en
  • CA378553A - Cyanamid grain stabilization : en fr
  • PL27529B1 - Connector for broad spectrum coaxial cables. : en pl
  • AT155296B - Portable electric light. : de en
  • AT155299B - Method and device for the production of wire nails from wire with a cross-shaped or star-shaped cross-section. : de en
  • CH201978A - Protective cover for writing chalk and colored pencils. : de en
  • GB497801A - Improvements in safety razors : en
  • DE669611C - Circuit arrangement for telecommunication, especially telephone systems with company lines : de en
  • US2141179A - Timed dump bailer : en
  • US2141269A - Control mechanism for calculating machines : en
  • US2141474A - Razor blade : en
  • US2141896A - Protective arrangement for alternating current systems : en
  • USD112718S - Design for an insecticide powder : en
  • PL27555B1 - A method of producing patterns on fabrics by treating them with perganizing agents. : en pl
  • US2141394A - Apparatus and method for handling sheetlike material : en
  • US2141762A - Ventilator : en
  • CH201883A - Reinforcement for concrete beams and ribs. : de en
  • DK55609C - Self-acting line block at train safety system. : da en
  • US2142055A - Vehicle signaling system : en
  • USD112710S - Design for a dress : en
  • US2141775A - Thermostatic device : en
  • DE669586C - Device for preventing the wheels or axles of vehicles from sliding, in particular of motor vehicles : de en
  • US2141319A - Simplified structure for driving spinning blades : en
  • PL27638B1 - Electric cigarette lighter, combined with a bulb. : en pl
  • PL27679B1 - Manufacturing method for forged tubular bends. : en pl
  • US2141517A - Gear ratio indicator and/or control device : en
  • CA378616A - Garment cutter plotting instrument : en fr
  • PL27600B1 - Anti-aircraft gun. : en pl
  • US2141257A - Method of preparing lubricating oil stocks from asphalt-containing crude petroleum ois : en
  • AT155338B - Bogie, especially for relatively light electrically operated rail vehicles. : de en
  • PL27526B1 - Placing the engine in the car. : en pl
  • FR835780A - Improvements made to the controls of the fuel systems for internal combustion engines, mainly those for aircraft engines : en fr
  • GB497743A - Improvements in reciprocating pumps and compressors : en
  • GB498010A - Improvements in flying machines : en
  • CH201906A - Roller hanger for hanging curtains and the like. : de en
  • BE431007A - Manufacturing process of olefin oxides : en fr
  • US2141163A - Method of and furnace for coating pipes with metal : en
  • US2141820A - Magnetic speaker : en
  • CA378547A - Hide and skin processing drum : en fr
  • CH202038A - Valve manifold for hot water storage tank. : de en
  • CH202091A - Slide capacitor with air dielectric and spiral electrodes. : de en
  • CH201994A - Watch. : en fr
  • US2141283A - Oil burner : en
  • DE669472C - Door lock with electrical release : de en
  • DE669556C - Device for operating standing smoldering retorts : de en
  • PL27649B1 - A car with two powered rear axles. : en pl
  • US2141547A - Soft grained dextrose free from water of crystallization : en
  • US2141674A - Weft replenishing mechanism for oval bobbins : en
  • GB497831A - Improvements in or relating to electrical heating apparatus suitable for cooking and other purposes : en
  • FR835633A - Improvements to electric discharge tubes : en fr
  • CA378530A - Camera shutter mechanism : en fr
  • CH202125A - Suitcase. : de en
  • AT155314B - Process for the treatment of liquid or semi-liquid hydrocarbons or of mixtures of such hydrocarbons with solid hydrocarbons with solid carbonaceous material. : de en
  • BE430993A - : en
  • AT155323B - Process for the production of cellulose from wood, grain straw, corn stalks or other cellulose-containing vegetable raw materials. : de en
  • FR835740A - Device used in particular for carrying out measurements by means of a membrane : en fr
  • CH202078A - Installation auto switch. : de en
  • AT155333B - Vehicle, in particular rail vehicle, with an engine system arranged in the bogie. : de en
  • DE669463C - Device for the optional visualization of different surface representations : de en
  • USD112705S - Design for a table lamp : en
  • US2141308A - Lens surfacing machine : en
  • US2141364A - Process of precooking leguminous food products : en
  • US2141633A - Heater for fluids : en
  • US2141738A - Filling and weighing machine : en
  • US2141854A - Cutting implement : en
  • US2141494A - Floating ceiling for car roofs : en
  • US2141996A - Wire for electric welding : en
  • US2142030A - Memorandum recording device : en
  • DK55624C - Hedge trimmer. : da en
  • CA378620A - Fire-arm : en fr
  • DE669677C - Multiple tray made of nested trays connected to one another by collapsible rods : de en
  • CH201963A - Process for making a naphthalene derivative. : de en
  • CA378585A - Tool carrier : en fr
  • DE669568C - Machine for the mechanical processing of fibrous sheets by means of a beating drum : de en
  • CH201904A - Apparatus for mechanical brushing and waxing of shoes. : en fr
  • CH202160A - Process for the preparation of a new aminoketone. : de en
  • DE669571C - A tent consisting of a triangular, pyramid-shaped set-up mantle tent track with a hood-shaped extension piece : de en
  • US2142050A - Crankshaft grinding machine : en
  • AT155311B - Device for sucking off the furnace gases in shaft-shaped roasting, kiln and drying ovens. : de en
  • CA378552A - Rope and cord : en fr
  • CH202010A - Welding unit. : de en
  • CH202134A - Device for preventing side skidding of motor vehicles. : de en
  • CH202152A - Watercraft. : de en
  • CA378520A - Welding electrode : en fr
  • GB497848A - Improvements in or relating to protective covers suitable for use in shoemaking : en
  • GB497802A - Improvements in and relating to gas meters : en
  • GB497842A - Improvements relating to devices for containing and dispensing cigarettes : en
  • CA378556A - Grinding machine : en fr
  • FR835665A - Nozzle cooling by alloy or fusible body, able to operate at constant vacuum, and applicable to all gasifiers : en fr
  • CH201936A - Butter cutter. : de en
  • DE669485C - Railway vehicle with more than two axles, which are combined into two groups by length compensation and of which two axles lead : de en
  • US2142068A - Game : en
  • US2141793A - Device for administering anesthetics : en
  • US2141902A - Automobile door locking device : en
  • DK55619C - Fish fillet slicing machine. : da en
  • FR835694A - Electric pocket torch : en fr
  • CH202098A - Oil burner with a natural draft. : de en
  • FR835637A - Device for making buttonholes at fixed intervals : en fr
  • US2142014A - Gas burning means : en
  • FR835664A - Electrical feedthrough for cathode sputtering devices : en fr
  • GB497858A - Improvements in and relating to electric excess consumption meters of the induction type : en
  • CH202069A - Sheathed transformer with device to increase the spread. : de en
  • FR835728A - Process for preparing allyl chloride : en fr
  • FR835760A - Remote hydraulic servo-actuator installation and its applications, in particular braking : en fr
  • FR835626A - Process for removing carbon monoxide by <<water- vapor>> catalysis of fuel gases purified in the usual manner : en fr
  • FR835798A - Carburetor improvements : en fr
  • FR835628A - Improvements to high voltage windings : en fr
  • FR835792A - Automatic recording device allowing the printing of the second factor in multiplying machines : en fr
  • US2141379A - Tooth powder dispensing container : en
  • US2141697A - Steering mechanism : en
  • US2141726A - Fishing reel : en
  • US2141951A - Air compressor attachment and brake for forging machines : en
  • FR835593A - Tube made of cement-like material, waterproofed against the passage of fluids and gases under pressure : en fr
  • GR7903B - AIR TRAINING ROUND. : el en
  • US2141336A - Mop : en
  • FR835622A - End-to-end machine improvements : en fr
  • US2141169A - Process of making shaped articles from synthetic polymers : en
  • US2141193A - Shoe fitting apparatus : en
  • US2141405A - Apparatus for manufacturing rubber strips : en
  • US2141668A - Carrier and modulation indicator : en
  • CA378525A - Blasting explosive : en fr
  • GB497908A - Improvements in or relating to hard rubber articles and methods of producing the same : en
  • DE669671C - Electric motor drive for fabric web conveyor devices : de en
  • FR835570A - Adjustable reactance transformer : en fr
  • FR835585A - Wood Chip Round Box Making Machine : en fr
  • DK55606C - Elastic strap for sock holders. : da en
  • DE669675C - Hot air sterilizer, in particular for sterilizing medical instruments and bandages : de en
  • FR835723A - Folding camera : en fr
  • US2141458A - Method of preparing colloidal carbonates : en
  • US2141568A - Motor propelled vehicle : en
  • US2141758A - Manufacture of carbon bisulphide : en
  • PL27662B1 - The connection system of a two-stroke combustion engine with a centrifugal compressor. : en pl
  • US2141435A - Means for adapting a gasoline engine to the use of oil as fuel : en
  • US2141639A - Vehicle rocking device : en
  • FR835620A - Process for obtaining white paper pulp from Scots pine wood : en fr
  • FR835711A - Flush tank : en fr
  • CH201955A - Process for the preparation of dehydrobinaphthylenediimine. : de en
  • US2141267A - Vehicle : en
  • US2141631A - Wood-shaping machine : en
  • FR835794A - New methods of wireless communication using modulated waves : en fr
  • US2141381A - Pipe thread protector : en
  • DE669557C - Belt press for mechanical pressure dewatering of peat : de en
  • GB497902A - Improvements in or relating to internal combustion oil engines : en
  • US2141426A - High fidelity receiving system : en
  • US2141922A - Electric valve translating circuit : en
  • US2141439A - Adjustable roller brace for shaker conveyers : en
  • US2141632A - Skirt and method of making the same : en
  • FR835588A - Explosion-proof electric cable : en fr
  • US2141881A - Basket carrying cart : en
  • US2141647A - Milling machine for grain : en
  • CH201930A - Conveying device, in particular for plan drying machines for fabrics. : de en
  • US2141925A - Liquid metering and dispensing apparatus : en
  • US2142020A - Grinding machine : en
  • USD112677S - Design for a parking meter : en
  • DE669662C - Process for the production of stabilized gasoline from pressure hydrogenation products : de en
  • GB497781A - Improvements in liquid contact electric switches : en
  • CH201942A - Process for the production of brines respectively. Suspensions of organic substances. : de en
  • CA378528A - Lens attachment : en fr
  • GB497895A - Improvements in lubricated plug valves : en
  • US2141580A - Amusement and skill game : en
  • US2141378A - Electron discharge device : en
  • US2141389A - Alloy steel : en
  • US2142031A - Process of aluminothermic smelting : en
  • PL27689B1 - Hydraulic foot pedal, coolant cooled. : en pl
  • CA378568A - Electron discharge device : en fr
  • CH201958A - Process for the preparation of a 2-oxynaphthalene-monosulfo-3-carboxylic acid. : de en
  • AT155277B - Method for extinguishing a burning arc in vapor or gas discharge vessels. : de en
  • CH201995A - Watertight watch case with unbreakable glass and process for its manufacture. : en fr
  • US2141438A - Paper box : en
  • CH202040A - Preselector switch. : de en
  • CH202143A - Cushioning device on bicycles, in particular on motorcycles. : de en
  • AT155295B - Liquid cathode for power converters with a metal vacuum vessel. : de en
  • CH201996A - Watch box. : en fr
  • PL27615B1 - A device for measuring the amount of liquid, liquid or gas flowing through tubing, including a vaporimeter. : en pl
  • US2141214A - Traction wheel attachment : en
  • US2141225A - Door lock : en
  • US2141256A - Vacuum tube : en
  • US2141822A - Cooking utensil : en
  • PL27528B3 - Arrangement of the drive components of motor vehicles. : en pl
  • BE428740A - : en
  • CH202074A - Installation on stranding machines. : de en
  • CA378618A - Timed rotary program : en fr
  • US2141679A - Circular loom : en
  • US2141851A - Vending machine : en
  • FR835683A - Purification process for alkali hydroxide solutions : en fr
  • CH201952A - Process for the preparation of an acid amide. : de en
  • PL27572B1 - A gearbox that also acts as a clutch. : en pl
  • US2141374A - Horn button attachment : en
  • GB497778A - Antioxidants for rubber : en
  • US2141281A - Wave transmission : en
  • DE669442C - Heat exchanger with thin sheets : de en
  • AT155268B - Roofing. : de en
  • US2141503A - Terminal protector : en
  • US2141682A - Dispenser : en
  • US2142001A - Apparatus for drying cans : en
  • CH202055A - Device for charging fuel-dust engines with fuel-dust air mixture. : de en
  • CH202089A - Dry rectifier element. : de en
  • GB497745A - Process for the manufacture of azodyestuffs : en
  • GB498127A - Process for the alkylation of paraffin hydrocarbons : en
  • GB497982A - Improvements in or relating to a fermentation process for the preparation of paper-pulp from incrusted cellulose fibres : en
  • CH202029A - Verfahren zum Verbinden von Körpern, insbesondere von Hochspannungsgeräten, miteinander. : de en fr
  • US2141205A - Air brake system : en
  • US2141882A - Refrigeration : en
  • USD112758S - Design fob a dress : en
  • US2141237A - Electric telegraphy : en
  • AT155301B - Process for the production of metal sheets consisting of a base material and plating layers. : de en
  • DE669579C - Control card : de en
  • US2141692A - Hydrant : en
  • CH202177A - Device for inserting several sheets of paper on typewriters. : de en
  • CA378498A - Carrier wave signalling system : en fr
  • CH201946A - Process for the preparation of the methyl ether of transandrosterone. : de en
  • PL27611B1 - Marking paint for raw fabrics, knitted or similar textiles. : en pl
  • US2141623A - Method of refining paraffin base oils : en
  • US2141978A - Rotary printing or coating machine : en
  • CH202065A - Process for the production of a depolarization mass. : de en fr
  • CH201992A - New calculating machine. : en it
  • US2141617A - Boron carbide alloy and method of making the same : en
  • US2141698A - Process of making cheese : en
  • USD112720S - Design for a stair tread : en
  • US2141353A - Refrigerator car door : en
  • AT155288B - Arrangement for the rapid protection of lines and section switches against severe short circuits. : de en
  • GB497898A - Pans for zinc coating objects according to the lead-zinc process : en
  • CH201928A - Device for producing relief patterns on fabric webs. : de en
  • DE669478C - Bucket wheel excavator : de en
  • BE430923A - : en
  • PL27574B1 - Device for increasing the coupling of electric circuits. : en pl
  • US2142075A - Conversion of hydrocarbon oil : en
  • US2141924A - Electrical discharge device : en
  • US2141961A - Reel rod for a printing cylinder : en
  • USD112745S - Design fob a plaque : en
  • CH201989A - Procedure for determining the maximum consumption of consumer goods. : de en
  • BE431248A - : en
  • FR835592A - Process for the preparation of alpha-substituted glycerol nitrates : en fr
  • FR835654A - Method and device for indicating distances on specific routes : en fr
  • BE431269A - : en fr
  • CH201988A - Device for counting and recording sacks or similar packaging filled with any material. : de en
  • US2141236A - Bathroom scale : en
  • US2141929A - Arc welding flux : en
  • BE431141A - : en
  • AT155305B - Process for the production of dyes. : de en
  • US2141208A - Pneumatic sound reproducer : en
  • CA378619A - Self starting synchronous motor : en fr
  • CH201964A - Process for the production of a phthalocyanine pigment. : de en
  • CH201903A - Device with tiltable device for cooking or frying. : de en
  • US2141316A - Arc welding flux : en
  • US2141487A - Artificial denture : en
  • DE669623C - Stumbling block for hay lifts : de en
  • CH202116A - Line with at least one air space insulation wound around the conductor in open screw turns and consisting of dimensionally stable insulating materials. : de en
  • CA378590A - Cigarette box : en fr
  • CH201894A - Device for cleaning sewer pipes. : de en
  • CA378499A - Electric discharge device or vacuum tube : en fr
  • CH202144A - Pedal drives, in particular for bicycles. : de en
  • USD112713S - Design for : en
  • FR835590A - Improvements to equipment for cooking and cooling canned products : en fr
  • AT155313B - Process for the preparation of tin compounds of water-soluble, non-coloring thio derivatives of phenols. : de en
  • PL27542B1 - A device for recording and retrieving notes on a tape moving from one rotary drum to another. : en pl
  • US2141363A - Jewelry setting : en
  • CH202105A - Dentifrice. : de en
  • CH202131A - Closure on tubes with paste-like content. : de en
  • FR835647A - Spinning device : en fr
  • CH202099A - Process for the production of electric lamps with a filling gas pressure exceeding at least one atmosphere at room temperature and an electric lamp produced therefrom. : de en
  • GB497841A - Improvements in the manufacture and production of interpolymerisation products : en
  • GB497878A - Improved air inlet valve for compression-ignition engines in which the vacuum in the intake manifold is utilized to actuate brakes : en
  • AT155317B - Developer for producing colored images through colored development. : de en
  • CH201879A - Braking device on mowers. : de en
  • CH201968A - Process for the production of a fertilizer containing sewage sludge and peat waste. : de en
  • US2141575A - Composition of matter : en
  • US2141869A - Perforation of insulating substances by spark discharges : en
  • AT155343B - Contact strip for pantographs of electrically operated vehicles. : de en
  • CA378522A - Welding electrode : en fr
  • CH202169A - Process for the preparation of a nitro dye. : de en
  • US2141539A - Baby carriage : en
  • US2141944A - Automatic volume control for amplifiers : en
  • US2141907A - Combined volume control and switch unit : en
  • AT155327B - Free-floating young cattle drinker. : de en
  • BE431131A - : en
  • CH201909A - Thermal sleeve for bottles. : de en
  • CH202039A - Stepless speed change gear. : de en
  • CH202030A - Coupling link for chains, in particular cattle chains, ropes and other flexible traction elements. : de en
  • CH202073A - Method for insulating electrical winding carriers, in particular armatures for wheel alternators and small power generators or motors. : de en
  • CH202047A - Conveyor system for pasty masses, especially for concrete. : de en
  • CH202058A - Device for regulating the fuel supply of internal combustion engines. : de en
  • DE669518C - Ladder support : de en
  • USD112741S - Design fob a lamp or : en
  • US2141496A - Method of finishing : en
  • CH202136A - Folding table on automobiles. : de en
  • PL27538B1 - Gyroscopic instrument. : en pl
  • PL27629B1 - Skiing tower. : en pl
  • CH201941A - Steam rectification process. : en fr
  • CH201984A - Device for rendering toxic gases harmless. : de en
  • CH202070A - Method for de-energizing large generators. : de en
  • USD112687S - Design for a tire : en
  • PL27527B1 - Printing and recording device for scales. : en pl
  • US2141983A - Clasp : en
  • CH201979A - Eraser. : de en
  • CA378544A - Modulated carrier wave transmitter : en fr
  • CH202016A - Machine vice. : en fr
  • US2141213A - Method and means for shaping shoe upper materials to the contour of a last : en
  • CH202180A - Automatically controlled milling machine. : de en
  • FR835649A - Automatic mixer-doser for supplying gas to engines : en fr
  • DE669438C - Collapsible photographic camera with a collapsible mirror finder chamber arranged above the receiving chamber : de en
  • CH201966A - Process for separating synthetic resins. : de en
  • CH202056A - Control device for aviation piston machines. : de en
  • CA378548A - Garden or lawn implement : en fr
  • DE669530C - Thread grinding : de en
  • DE669664C - Blade carriers provided with radially acted blading on both front sides : de en
  • AT155257B - Electrical discharge vessel, preferably a small electron tube with a metal shell. : de en
  • DE669562C - Process for generating an alternating current from a direct voltage with the aid of a discharge vessel : de en
  • PL27687B1 - Hangers for attaching the sliding curtains to the disc rails. : en pl
  • US2141341A - Shield for toilet bowl seats : en
  • US2142048A - Meter protective cabinet seal : en
  • US2141837A - Multistage multipactor : en
  • CH201962A - Process for the production of a benzanthrone derivative. : de en
  • PL27522B1 - A method of electric resistance welding, especially of longitudinal seams of pipes and the like, and an apparatus therefor. : en pl
  • CH201910A - Cutlery holder. : de en
  • DE669608C - Slide lock : de en
  • DK55622C - Fuel shafts for residential houses. : da en
  • GB497806A - Improvements in dies, more especially for punching fine holes : en
  • CH201917A - Heating device for cans and the like. : de en
  • CH202013A - Actuating device for the coupling of the work spindle, in particular the thread cutting spindle, on automatic lathes. : de en
  • CH202075A - Push switch. : de en
  • US2141898A - Electric switch gear : en
  • PL27637B1 - Fuse device for gas devices. : en pl
  • US2141176A - Loose sheet camera : en
  • US2141655A - Radiation sensitive device : en
  • US2141957A - Deep well pump : en
  • CH202133A - Steering coupling, in particular for motor vehicle trailers. : de en
  • CH202181A - Process for the preparation of tropine diphenylacetate. : de en
  • GB497779A - Improvements in power transmission systems embodying hydraulic couplings : en
  • GB497851A - Improved bandage and process of manufacture thereof : en
  • CH201947A - Process for the preparation of a cholestadienone. : de en
  • CH202095A - Signal lamp. : de en
  • PL27684B1 - A device for switching the steam counter-pressure and power turbine power regulators. : en pl
  • FR835568A - Method and devices for the manufacture of glass sheets by drawing : en fr
  • FR835747A - Method and device for injecting fuel into multi-cylinder diesel engines : en fr
  • CA378502A - High frequency oscillator : en fr
  • US2141164A - Automatic clutch : en
  • DE669500C - Process for producing a liquid, basic iron-iron oxide / lime slag for refining pig iron and raw steel : de en
  • CH201933A - Trousers. : de en
  • AT155298B - Process for the production of sealing rings with a soft shaft and a hard sealing zone. : de en
  • PL27576B1 - The method of obtaining pressed yeast with a light relatively white color. : en pl
  • US2141624A - Charging storage batteries : en
  • US2141877A - Compounds of the benzanthraquinone series : en
  • US2141245A - Process for the treatment of sulphonated fatty alcohols and the products produced theeby : en
  • CH202063A - Device for the rapid start-up of heating systems which, in order to increase output, work under pressure supplied by a gas turbine-driven compressor. : de en
  • US2141774A - Wireless receiving apparatus : en
  • PL27672B1 - Carburetor for internal combustion engines, powered by two types of fuel. : en pl
  • US2141828A - Arrangement for determining the orientation and value of dip of the beds traversed by a bore hole : en
  • US2141507A - Device for automatically controlling the inflation of tires : en
  • US2141537A - Machine gun : en
  • US2141468A - Bar cabinet : en
  • DE669680C - wire fence : de en
  • DE669661C - Process for the pressure hydrogenation of carbons, tars or mineral oils : de en
  • US2141431A - Amusement device : en
  • US2141903A - Filter unit : en
  • US2141361A - Dewaxing process : en
  • FR835630A - Improvements in the manufacture of lamp filaments : en fr
  • GB497914A - Improvements in or relating to brake operating mechanisms : en
  • FR835686A - Improvements to plate heat exchangers : en fr
  • GB498008A - Improvements in the manufacture and production of capillary-active agents : en
  • GB497832A - Improvements in or relating to the manufacture of explosive compositions or blasting charges : en
  • PL27619B1 - Lubricating device for axle bearings of vehicles running on rails. : en pl
  • AT155321B - Ceramic capacitor dielectric. : de en
  • USD112752S - Design for a finger guard : en
  • DE669616C - Arrangement for the direct conversion of three-phase current of frequency into single-phase current of frequency f / 3 : de en
  • US2141595A - Magnet structure : en
  • USD112696S - Design for a bottle : en
  • PL27593B1 - A method of cutting artificial threads or extracting blotch from alkaline protein solutions. : en pl
  • US2141221A - Beer drawing and cooling system : en
  • US2141759A - Heating device for curls : en
  • US2141782A - Fiber receiving device : en
  • US2141442A - Ventilator : en
  • US2141651A - Shoe-testing device : en
  • DE669439C - Device for introducing the front ends of wound metal strips between the rolls of a rolling mill : de en
  • US2141648A - Peripheral resilient mount for electric motors : en
  • USD112761S - Design for a dress : en
  • US2141390A - Means for fixing the picture carrier on copper intaglio printing cylinders : en
  • US2141965A - Marking material : en
  • US2141970A - Combination sanitary pad and shield and harness therefor : en
  • GB497754A - Improvements in and relating to instruments for determining atmospheric conditions : en
  • DE669576C - Barrel weight balance with a hollow, downwardly open balance beam : de en
  • DE669565C - Jacquard pattern device for flat knitting machines : de en
  • FR835589A - Process for the preparation of derivatives, saturated and unsaturated, of pregnanol-3-one-20 and resulting products : en fr
  • FR835724A - Improvements to aerial propellers and propeller blades or wings, and manufacturing process : en fr
  • US2141197A - Color-stable oil-modified resin and process of making same : en
  • US2141739A - Beauty mitten : en
  • US2141990A - Plaque holder for writing instruments and the like : en
  • US2141418A - Pile raising and lowering mechanism : en
  • US2141533A - Weeding and mulching tool : en
  • DE669543C - Gas-filled tube with mercury and / or sodium vapor as a light source for the subjective observation of a mirror screw : de en
  • DE669542C - Storage or articulation for levers of typewriters and similar machines : de en
  • CH201998A - Dial reminder. : en fr
  • US2141274A - Pipe plugging device : en
  • US2142022A - Infeed cycle control attachment : en
  • DE669559C - Contact vessel for rail contacts : de en
  • US2141602A - Method of making collapsible tubes : en
  • US2141559A - Expanision joint with peripheral seal : en
  • US2141899A - Feed water preheater : en
  • US2142074A - Truss for rupture : en
  • FR835739A - Improvements to ropes and their manufacturing process and articles obtained by means of these ropes : en fr
  • ES144188A1 - PROCEDURE FOR OBTAINING CRISENO DERIVATIVES : en es
  • FR835619A - Improvements to discs for friction clutches : en fr
  • PL27646B1 - : en pl
  • US2141642A - Structural member and manufacture thereof : en
  • DE669673C - Process for the preparation of monoazo dyes : de en
  • GB497849A - Process for obtaining positive films for motion pictures in natural colours : en
  • US2141746A - Electro-optical image producing device : en
  • US2141955A - Sign letter : en
  • US2141209A - Tapping attachment : en
  • US2141334A - Engine starting mechanism : en
  • FR835687A - Insulated refrigerator casing : en fr
  • GB497931A - Improvements in machines for shearing metal sheets and the like : en
  • GB497857A - Improvements in, or relating to boxes for housing electrical apparatus : en
  • GB497897A - A plotting instrument and scales for use in navigation : en
  • DE669454C - Dispensing container for viscous substances with a delivery piston and a bottom valve that can be opened inwards through a spindle : de en
  • DE669496C - Method and apparatus for distillations and similar processes : de en
  • PL27560B1 - Method of obtaining vat dyes. : en pl
  • CH201902A - Screw nut piece for cooking and roasting hearth with side shelf. : de en
  • CH201965A - Piece of rosin for coating violin bows and the like. : de en
  • FR835572A - Manufacturing process of charcoal briquettes : en fr
  • US2141332A - Cash register : en
  • US2141465A - Tap chuck : en
  • US2141279A - Electric switch : en
  • CH202137A - Combination lock. : de en
  • DE669684C - Absorbent paper strip for absorbing nicotine and moisture in tobacco pipes, cigar or cigarette holders : de en
  • FR835582A - Process for removing foreign gases from gases in the catalytic reaction circuit under pressure : en fr
  • GB497887A - Improvements relating to the dehairing of hog carcasses : en
  • FR835560A - Device for fixing the ventilation cap to helmets made of cork or the like : en fr
  • FR835571A - Device for lifting, handling and transporting containers for use in freight transport services by motor trucks, railways and steamers : en fr
  • US2141543A - Tire inflating device : en
  • US2141677A - Lead-in seal : en
  • US2141876A - Conveyer : en
  • FR835567A - Color photography process : en fr
  • GB497912A - Improvements in and relating to power-operated wrenches for screwing up nuts, bolts and the like : en
  • PL27655B1 - : en pl
  • US2141945A - Power transmission : en
  • US2141239A - Elastic seam for garments : en
  • GB497948A - Improvements in or relating to means for regulating the temperature of superheated steam : en
  • FR835608A - Signaling system for railways or the like : en fr
  • DE669549C - Listening device with a parabolic sound collection system : de en
  • FR835768A - Safety binding for ski, automatic release : en fr
  • GB497868A - Improvements in or relating to shock absorbing and load equalizing or stabilizing means : en
  • DE669539C - Chain lowering device for looms : de en
  • US2141671A - Manufacture of wrought iron : en
  • US2141733A - Lens system : en
  • US2141750A - Frequency converter : en
  • USD112681S - Design fob a fish lure body : en
  • US2141462A - Chilling device for dairy products and the like : en
  • US2141345A - Protective means for shoes : en
  • DE669593C - Arrangement for sending and receiving ultra-short waves : de en
  • FR835743A - Insecticide : en fr
  • DK55608C - Flat Pressure Plate and Procedure for Its Manufacture. : da en
  • US2141835A - Relief valve : en
  • FR835614A - Sliding metal core gramophone needle : en fr
  • US2141656A - Multicell shuttle box for looms : en
  • US2142054A - Windshield cleaner : en
  • GB498290A - Improvements in sensitised photographic emulsions : en
  • US2142052A - Press : en
  • US2141310A - Coffee mill : en
  • US2141641A - Sound signal : en
  • US2141732A - Pickling and cleaning device for strip metal : en
  • GB497750A - Improvements in or relating to testing equipment for telephone or like systems : en
  • US2141621A - Electric storage battery : en
  • US2141938A - Arc welding flux : en
  • FR835702A - automotive tent equipment : en fr
  • PL27609B1 - A control device, especially for cars, for the hydraulic pedal. : en pl
  • US2141884A - Photographic objective : en
  • GB497777A - Improvements in and relating to portable buildings : en
  • USD112756S - Design fob a telephone transmitter : en
  • US2141675A - Tension for loom shuttles : en
  • US2141700A - Trim panel assembly : en
  • GB497755A - Improvements in or relating to frequency converters : en
  • GB497798A - Improvements in or relating to radio and like receivers : en
  • GB497958A - Improvements in or relating to the manufacture of composite wall board : en
  • GB498124A - Improvements in typewriting machines : en
  • US2141403A - Drying method and apparatus : en
  • US2141461A - Sample cloth display retainer : en
  • US2141832A - Steering wheel construction : en
  • US2141908A - Combined volume control and switch unit : en
  • US2141251A - Clasp construction : en
  • US2141485A - Plant cover setter : en
  • US2142047A - Electric discharge lamp : en
  • DE669490C - Mixture compressing two-stroke internal combustion engine : de en
  • GB497874A - Improvements in pattern control mechanism for looms, knitting and like machines : en
  • FR835726A - Portable pneumatic device for vibratory massages : en fr
  • GB497828A - Improvements relating to electromagnetically-operated electric switches : en
  • AT155344B - Intermediate closure piece for tubes and similar containers. : de en
  • US2141525A - Carton packer and sealer : en
  • US2141664A - Grinder : en
  • DE669385C - Process for the production of stable, high molecular weight, liquid chlorinated paraffins : de en
  • DE669607C - Glove to be worn as a finger glove and as a mitt : de en
  • US2142036A - Hydration of olefines : en
  • USD112748S - Design for a good luck charm : en
  • AT155264B - Suitcase, in particular made of hard board, vulcanized fiber or the like. : de en
  • BE431142A - : en
  • USD112697S - Design fob a lighting fixture globe : en
  • DE669448C - Tunable high frequency oscillation circuit : de en
  • FR835718A - Verification instrument for watches : en fr
  • CA378532A - Camera winding device : en fr
  • FR835656A - Gear change mechanism for machine tools, in particular for lathes : en fr
  • FR835674A - Improvements to metal keys used to fix railroad tracks in their support pads : en fr