• GB460265A - Improvements in and relating to magnet systems : en
  • DE641371C - Electrically operated pot vacuum cleaner : de en
  • DE641344C - Process for the production of flakes and flours : de en
  • CA11297S - Frictional table lighter : en
  • US2068779A - Cooling roll refiner or like mill : en
  • DE641321C - Process for the preparation of engine propellants : de en
  • DE641350C - Arrangement for displaying switching operations : de en
  • US2068899A - Calculating machine : en
  • US2068813A - Combined cigarette and vanity case : en
  • FR808169A - Improvement in fluid transport pipes and in particular in engine supply pipes : en fr
  • CH188894A - Process for the production of moldings from collagen fiber pastes. : de en
  • US2068648A - Pipe coupling : en
  • US2068911A - Photographic shutter : en
  • AT148511B - Electric tubular heater for high voltage. : de en
  • PL24254B1 - Hand grenade fuse. : en pl
  • US2069016A - Windshield wiper motor : en
  • US2068952A - Thermostatic by-pass riser : en
  • BE419013A - Process for manufacturing cellular plaster for use in construction and insulation materials. : en fr
  • US2068788A - Typewriter : en
  • FR807961A - Cup : en fr
  • GB460354A - Improvements relating to stereotype apparatus : en
  • GB460631A - Improvements in the manufacture of fabrics and articles of wearing apparel : en
  • US2068928A - Door stop or check : en
  • PL24280B1 - Motorized device for fast and thorough skinning of animals. : en pl
  • PL24352B1 - Insert for high-speed compressed or diluted air brake. : en pl
  • US2069046A - Spark plug shield : en
  • CA363652A - Halogenated composition : en fr
  • AT148499B - AC rail locomotive. : de en
  • FR808023A - Improvements to devices for controlling exposure conditions in photographic and cinematographic cameras : en fr
  • DE641414C - Weight-loaded tension pulley arrangement in drive devices for rewindable phonetic carriers : de en
  • GB460350A - Improvements in concentrating latex : en
  • GB460464A - Improvements in the manufacture and production of cyanhydrins : en
  • SU50225A1 - Typewriter Typewriter : en ru
  • US2068807A - Cutter chain and cutter bar : en
  • US2068957A - Shoe jack : en
  • US2069035A - Device for detecting the presence of foreign gases or suspensions in air or other gas : en
  • FR807929A - Process for preparing interesting products by catalytic hydrogenation under pressure : en fr
  • GB460471A - Improvements in or relating to electric condensers : en
  • GB460554A - Improvements in and relating to gas producers : en
  • FR808034A - Bed convertible into sofa : en fr
  • DE629169C - Skin removal device : de en
  • DK52614C - Process for the production of lecithin and other phosphatides, optionally mixed with oil. : da en
  • FR808016A - Low gas pressure measurement method : en fr
  • GB460550A - Improvements relating to roof coverings : en
  • DE641261C - Device for keeping a technical-physical quantity constant : de en
  • SU50191A1 - Casing head for interconnecting plugging and production boreholes : en ru
  • US2069173A - Refining hydrocarbon gases : en
  • GB460420A - Improvements in and relating to lining rings for piston ring grooves : en
  • DE641429C - Hydraulically or pneumatically controlled single or multi-disc clutch or brake : de en
  • US2068678A - Injection valve tip : en
  • US2068698A - Hearing aid : en
  • US2069051A - Coin and token separator : en
  • DE641385C - Rooster : de en
  • US2068764A - Target : en
  • US2068835A - Foundry system : en
  • GB460255A - Process for the manufacture of alkoxyanthraquinones : en
  • GB460376A - Improvements in or relating to the production of chlorine dioxide : en
  • DE641335C - Device for operating electrical networks : de en
  • GB460442A - Improvements in or relating to apparatus for playing off sound films : en
  • GB460348A - Improvements in or relating to apparatus for the decortication or husking and the pulverising of cereals : en
  • PL24245B1 - A method of increasing the bite resistance of aluminum alloys containing magnesium in an amount from 3 to 16%. : en pl
  • SU49376A1 - Stroboscopic device : en ru
  • US2068757A - Automatic back cleaner and massager : en
  • USD102926S - Design fob an ashtray : en
  • US2068959A - Brake : en
  • GB460530A - Improvements in or relating to connecting rods : en
  • DE641367C - Inverter working with grid-controlled vapor or gas discharge paths : de en
  • GB460511A - Fountain brush : en
  • GB460386A - Process and apparatus for firing porcelain or ceramic material in electrically or indirectly heated tunnel furnaces : en
  • DE641296C - Device for regulating the outflow of large fluid lines, such as distribution or supply lines for waterworks, by means of ring valves : de en
  • CH188934A - Circular saw with protective device. : de en
  • USD102878S - Design for a musical intrument case : en
  • US2068878A - Internal combustion engine : en
  • US2069165A - Organo-mercury 1, 2-aliphatic-diamine sulphites, and process of producing them : en
  • USD102896S - Design for a shoe : en
  • US2069045A - Bottle stopper : en
  • DK52615C - Method with associated Apparatus for Forming Thin Materials. : da en
  • GB460432A - Improvements in and relating to radial flow reaction turbines : en
  • USD102953S - Design fob a kettle ob similar : en
  • CH189011A - Torsionally rigid frames, in particular for motor vehicles. : de en
  • CA363689A - Insulated conductor : en fr
  • CH188867A - Skirt transformable into pants. : de en
  • GB460385A - The manufacture of asymmetrical disazodyestuffs : en
  • GB460483A - Improvements in metal cutting and like machine tools : en
  • GB460507A - Improvements relating to thermionic valve holders : en
  • DK52605C - Valve device at Central heating system. : da en
  • GB460327A - Improvements in or relating to fuel-injection pumps for internal-combustion engines : en
  • FR808170A - : fr
  • DE641228C - Ski binding : de en
  • CA363725A - Oil pour point lowering process : en fr
  • US2068961A - Clutch control mechanism : en
  • CH188966A - Electrical switch remotely controllable by at least one switching magnet. : de en
  • GB460585A - Improvements in or relating to electric switches suitable for operation by the passage of vehicles : en
  • CA363661A - Rubber article surface hardening method : en fr
  • AT148477B - Process for the preparation of amino fatty acid nitriles. : de en
  • AT148478B - Process for the fractional distillation of hydrocarbon mixtures. : de en
  • CH188989A - Device for resuscitating pseudo-dead by means of artificial trunk, in particular chest enlargement : de en
  • AT148547B - Character measuring plate. : de en
  • AT148517B - Synchronizing disks od. The like. Aid for re-synchronization of sound films and methods for producing the same. : de en
  • DE641421C - Weight compensation for the magazines of die setting and line casting machines : de en
  • AT148508B - Liquid heater with a valve regulating the flow of liquid to the radiator. : de en
  • BE338230A - : en fr
  • DK52626C - Cigarette. : da en
  • CH189009A - Electro-mechanical device for locking a control mechanism. : en fr
  • AT148466B - Process for the production of cyanine dyes. : de en
  • SU50220A1 - Hydraulic transmission : en ru
  • CA363628A - Reaction chamber arrangement : en fr
  • FR807966A - Process for preparing cryolite : en fr
  • FR808193A - New assembly process for cast iron parts, or other non-weldable metals or alloys and resulting assemblies : en fr
  • FR808087A - Regulating device for keeping a speed factor constant in industrial or other installations : en fr
  • CH188831A - Oil burner with an oil preheating device. : de en
  • FR807950A - Electric capacitor : en fr
  • PL24334B1 - : en pl
  • CH188823A - Machine for the manufacture of pipes in cement or similar material. : en fr
  • CH189027A - Process for the production of benzoyl casein. : de en
  • USD102895S - Design fob a shoe : en
  • CH188857A - Process and circular knitting machine for the production of two-thread, patterned, openwork goods. : de en
  • FR807921A - High power brake : en fr
  • GB460257A - Improvements in surgical and like bedsteads : en
  • PL24324B1 - A method of obtaining light metals, especially potassium metal, by means of electrolysis of mixtures of their molten liquid salts and a device for this purpose. : en pl
  • CA363740A - Paper sensitizing apparatus : en fr
  • DE641254C - Converter system for electrochemical baths : de en
  • DE641263C - Transparent globe : de en
  • SU50213A1 - Float to determine the rate of water flow : en ru
  • US2069131A - Tuning indicator for radio receivers : en
  • US2068882A - Method and apparatus for treating alkali-earth carbonate materials : en
  • US2068924A - Regenerator tank and method of operating the same : en
  • US2068932A - Fastening device : en
  • AT148428B - Rear derailleur for automatic switch. : de en
  • AU160936A - Cleaning roll : en
  • PL24259B1 - High-performance electric discharge lamp. : en pl
  • US2068992A - Vibrating machine : en
  • CA363636A - Incinerator : en fr
  • CH188897A - Process for the production of alkaline earth carbonate coatings which can be converted into oxide layers. : de en
  • PL24313B1 - dry compartments of artificial fibers, artificial bristles and other artificial viscose products. : en pl
  • US2068925A - Glass making apparatus and method : en
  • USD102976S - Design for a vaporizer : en
  • FR807982A - Improvements to transmission organs : en fr
  • USD102886S - Design for a printed textile fabric : en
  • CH188814A - Dog leash. : de en
  • CH188889A - Process for the production of a new condensation product. : de en
  • DE641306C - Electrical switchgear for dental collection devices : de en
  • BE418826A - Power pedal : en nl
  • GB460389A - Improvements in or relating to the formation of n-diaryl dithiocarbamates of metals : en
  • PL24295B1 - Clutch between brake pedestal and brake sheath of freewheel hub with reverse brake. : en pl
  • FR808126A - Assembly method for metal bodywork : en fr
  • US2069150A - Roof cooling device : en
  • USD102877S - Design for a textile fabric or simi : en
  • DE641380C - Direction indicators for train stations : de en
  • FR807979A - Process for the production of plaster bands : en fr
  • GB460470A - Improvements in and relating to electro-magnetic interrupters : en
  • FR807926A - Improvements in aircraft propulsion systems : en fr
  • BE419632A - : en
  • CA363743A - Bark peeling device : en fr
  • FR807963A - Object, in particular a broom fitted with a handle which is detachably attached to it : en fr
  • CA363744A - Animated window display : en fr
  • GB460424A - Improvements in cleaning clothes : en
  • GB460459A - Improvements relating to display cards for knitting pins, crochet needles, pencils and other elongated objects : en
  • GB578726A - Improvements in ordnance and machine guns : en
  • AT148444B - Composable deck chair. : de en
  • SU50247A1 - The method of receiving color vision : en ru
  • SU50278A1 - Sound film sync device : en ru
  • US2068741A - Gas-filled discharge tube : en
  • GB460407A - Improvements in and relating to gland packing rings of india-rubber : en
  • DE641363C - Rail brake magnet : de en
  • FR808175A - Improvements to chests for goods transport : en fr
  • SU50207A1 - The method of preparation of varnish from waste galalita : en ru
  • USD102900S - Design for a shoe : en
  • GB460362A - Improvements in or relating to centrifugal separators : en
  • DE641119C - Airplane with several propellers arranged in front of the wings : de en
  • GB460276A - Improvements in the manufacture and production of azo dyestuffs : en
  • GB460224A - The manufacture of azodyestuffs : en
  • GB460371A - Improvements relating to the attachment of iron parts to non-ferrous metal or other bodies : en
  • GB460516A - Improvements in shrapnel shells : en
  • GB460571A - Improvements in and relating to electric circuit breakers : en
  • FR807948A - Improvements made to devices to provide a variable fluid flow rate according to the ambient pressure, in particular to oxygen inhalers : en fr
  • GB460250A - Manufacture of n-aminoalkylamides : en
  • US2068684A - Pattern drafting and grading chart : en
  • US2069154A - Low air pressure warning device : en
  • CH188999A - Attachment device to wallets for serving girls. : de en
  • US2068836A - Apparatus for drawing and reeling wire : en
  • US2069179A - Vapor disseminating package : en
  • AT148502B - Air distributor for underwind firing. : de en
  • CH188979A - Dentures. : de en
  • DK52612C - Piano. : da en
  • DK52613C - Procedure for the Preparation of Organic Oxidation Products for Use as Bleaching Agents. : da en
  • USD102913S - Design for a finger : en
  • FR807940A - Clothing pattern on rectangular plan : en fr
  • PL24258B1 - The method of applying carbonic ink on a paper strip in the production of carbon paper, copy forms, etc. : en pl
  • FR807981A - Button sewing machine : en fr
  • FR807986A - Process for tanning green leathers and skins : en fr
  • US2068971A - Apparatus and process for continuously removing volatile matter from a liquid : en
  • GB460258A - Process and apparatus for the production of concrete road surfaces : en
  • US2068679A - Worm gear adjustment for steering gears : en
  • USD102975S - Design for a typewriting machine : en
  • SU50222A1 - Adapter for rezenkovki holes : en ru
  • CA363675A - Heater device : en fr
  • GB460335A - Improvements in photographic apparatus : en
  • US2069032A - Division molding assembly for a windshield : en
  • USD102960S - Design fob a dispensing vehicle body : en
  • GB460581A - Improvements relating to floor and wall construction : en
  • US2069104A - Grid paster : en
  • CH188860A - Preparation for vat dye printing. : de en
  • US2068749A - Combination salt and pepper shaker : en
  • GB460223A - Improved method of and means for teaching or/and practising musical rhythm and time : en
  • DE641288C - Stuffing box for liquid pumps, especially for liquefied gases : de en
  • FR808187A - Nail polisher : en fr
  • SU50221A1 - Sheet Metal Etching Device : en ru
  • CH188869A - Shoe with a new type of closure. : de en
  • GB460232A - Improvements in or relating to the production of stiffened fabrics and articles made thereof : en
  • DE641234C - Multi-roller mill with coolable hollow rollers : de en
  • US2069190A - Circulation enhancing attachment for radiators : en
  • US2068930A - Lamp socket : en
  • US2069159A - Substituted aminochrysenes : en
  • FR807902A - Improvements to water heating devices : en fr
  • USD102912S - Design fok a box : en
  • AT148474B - Process for the preparation of 1,5-dialkyl- or 1,3.5-trialkyl-5-cycloalkenylbarbituric acids. : de en
  • CA363641A - Organic waster liquor processing : en fr
  • DE641233C - Stop device for belt connector : de en
  • GB460282A - Process for the preparation of ortho-hydroxycarboxylates and ortho-hydroxycarboxylic acids : en
  • GB460298A - Improvements in or relating to electric capacity controlled devices applicable for indicating the approach of a body : en
  • CA363696A - Film guide : en fr
  • DE641262C - Process for soaking fibrous material with rubber milk : de en
  • GB460264A - Electro-dynamic microphones : en
  • US2068677A - Refrigerating system : en
  • US2068783A - Apparatus for separating materials : en
  • USRE20255E - Spinning top : en
  • GB460324A - Improvements in or relating to handle-bars for cycles : en
  • GB460449A - Improvements in electric transformers : en
  • GB460599A - Improvements in colour photography : en
  • US2069089A - Infant's feeding cup : en
  • FR808006A - Self-propelled : en fr
  • GB460247A - Improved means for securing the detachable front parts of road vehicle lamps : en
  • CA363642A - Incandescent lamp : en fr
  • CA363777A - Macaroni product : en fr
  • CH188861A - Washing machine that can be used as a laundry centrifuge. : de en
  • IE14312L - Electric discharge lamps : en
  • GR6256B - METHOD OF PRODUCTION SOAP SOAP FROM THE SILK OF THE SILKWORM. : el en
  • FR808197A - Device for emitting remote control currents in electrical networks : en fr
  • GB460391A - Means for scoring trick points in bridge and like card games : en
  • US2069125A - Cooking vessel : en
  • USPP228P - Hybrid poplar : en
  • AT148431B - Tubular base for Braun tubes. : de en
  • CA363715A - Bearing : en fr
  • CA363755A - Attention attracting device : en fr
  • BE419000A - : en fr
  • US2068852A - Air conditioning system for railway cars : en
  • US2068857A - Motor fuel blend and process of making the same : en
  • US2069096A - Derivatives of ovarian follicular hormones and process of obtaining same : en
  • US2068703A - Bandage : en
  • US2068781A - Reflector : en
  • US2069156A - Sprayer : en
  • US2068998A - Rubber garment : en
  • US2069143A - Worm gear adjustment for steering gears : en
  • GB460441A - Improvements in or relating to articulated joints : en
  • US2069021A - Knitted cap : en
  • US2069039A - Arylamino-hydroxybenzenes : en
  • CH188874A - Knife bodies for meat cutting machines with interchangeable knives. : de en
  • GB460279A - Improvements in and connected with road coverings : en
  • FR808091A - Improvements to evacuation or emptying devices : en fr
  • GB460428A - Improvements in or relating to the transmission of ringing signals in carrier frequency telephony systems : en
  • AT148402B - Pressure reducing valve. : de en
  • BE418879A - electrical installation of X-ray equipment : en fr
  • USD102934S - Design for a shoe : en
  • DE641260C - Broadcast antenna to give preference to ground radiation : de en
  • DE641328C - Conveyor trough, especially for carrier conveyors, with wear protection overlay arranged on the slide : de en
  • FR808139A - Device for plating and bending, in particular of irregular shaped parts : en fr
  • GB460418A - Improvements in or relating to thermostatic control devices : en
  • CH189040A - Process for the preparation of a water-soluble monoazo dye. : de en
  • AU178236A - Improvements in electric discharge devices : en
  • US2069118A - Feed roll brake for silk machines or the like : en
  • US2069157A - Dental preparation : en
  • GB460336A - Improvements in or relating to connecting devices for rubber-covered rigid tubing : en
  • USD102931S - Design for a wigwag signal : en
  • USD102971S - Telephone compartment : en
  • GB460245A - Improvements in or relating to the manufacture of cigarettes : en
  • FR807973A - Automatic temperature regulator : en fr
  • DE641293C - Multi-conductor dry current transformer with circular high-voltage winding : de en
  • FR808089A - Process for obtaining ammonium chloride and sodium bicarbonate : en fr
  • AT148489B - Popular amusement park with corridors arranged like a maze. : de en
  • CH188982A - Gullet. : de en
  • FR807912A - Electric plate capacitor : en fr
  • DE641365C - DF receiver for directing aircraft using the dot-dash method : de en
  • DE641251C - Brake control for electric traction vehicles : de en
  • US2069094A - Device for opening shell fish : en
  • DE641368C - Automatic switching device for grid-controlled converters working alternately as rectifiers and inverters : de en
  • DE641252C - Bushing insulator or similar capacitor-like device made of layered insulating material with multilayered metallic inserts : de en
  • FR807928A - Indicating or recording device for scales and other applications : en fr
  • FR808138A - Steel house : en fr
  • CA363653A - Cellulose derivative solution : en fr
  • CH188952A - Work or power machine. : de en
  • DE641405C - Objects that are resistant to hot sulphurous gases : de en
  • AT148427B - Single-phase or multi-phase collector machine with multiple closed armature winding trains. : de en
  • CA363739A - Collapsible basket : en fr
  • CH189001A - Closure device on necked containers. : de en
  • DE641272C - Process for the production of a three-hinged arch made of reinforced concrete with longitudinal ribs on top : de en
  • CH188821A - Process for coloring a building material suitable for ballasting purposes. : de en
  • CA363720A - Draft and buffing gear : en fr
  • PL24252B1 - A device protecting the wheel of a vehicle, especially for prams, against falling off the axle. : en pl
  • US2068889A - Milling and profiling machine : en
  • USD102932S - Design fob a textile fabric or : en
  • GB460455A - Improvements in or relating to cage batteries for laying fowls or other birds : en
  • CH188915A - Combined tool for digging work. : de en
  • US2068687A - Method of applying metallic coatings : en
  • US2068937A - Road marker : en
  • US2068969A - Clinker remover for furnaces : en
  • FR808119A - Skin tanning process : en fr
  • US2069128A - Valve for pneumatic tires for motor driven vehicles giving acoustic signals : en
  • USD102906S - Design for a lighting fixture : en
  • US2068704A - Well drilling and coring apparatus : en
  • AT148484B - Scythe blade holder. : de en
  • GB460440A - Improvements in the manufacture of amino compounds of the anthraquinone series : en
  • GB461074A - Improved attachment or wearing pad for the heels and soles of boots, shoes and like foot-wear : en
  • SU50271A1 - Gorshkov glass melting furnace with ring-shaped rotary hearth : en ru
  • US2068726A - Telephone system : en
  • US2069169A - Relay : en
  • USD102943S - Design for a cocktail shaker : en
  • FR807908A - Gear enhancements : en fr
  • FR808111A - Spray jet : en fr
  • PL24320B1 - Explosive material for the stuffing of bullets, a method of stuffing bullets with it, and a device for carrying out the same method. : en pl
  • PL24344B3 - A method of obtaining artificial masses with wax properties. : en pl
  • PL24348B1 - A method of calendering fabrics and a calender for carrying out the method. : en pl
  • SE88365C1 - : en
  • GB460225A - An improved bathing cap : en
  • GB460828A - Shifting means for automatic change speed gears : en
  • PL24282B1 - : en pl
  • US2069068A - Method of making wheels : en
  • US2068676A - Vehicle spring suspension : en
  • GB460887A - Improvements in and relating to dentures : en
  • GB460448A - Improvements in and relating to plug terminals for electric connections : en
  • FR808004A - Electron beam discharge device : en fr
  • USD102929S - Design for a jewelry box or similar : en
  • CA363677A - Wrapping machine paper feed : en fr
  • CH188947A - Grease gun. : de en
  • GB460404A - Improvements in and relating to sound absorbing surfaces and structures : en
  • FR808032A - Illuminating frame : en fr
  • DE641397C - Index sheet with flexible memo plates : de en
  • FR807904A - Articulated armchair-stool : en fr
  • GB460547A - Method of and device for regulating the capacity of compressors of refrigerating machines : en
  • PL24327B1 - The method of transforming high-boiling hydrocarbon oils into low-boiling oils. : en pl
  • GB460392A - Continuous rod cigarette-making machines : en
  • USD102879S - Design fok a doll or similar article : en
  • USD102901S - Design fob a shoe : en
  • US2068670A - Automatic mixer control system : en
  • PL24303B1 - The method of separating sediments of solids suspended in liquids. : en pl
  • SU50282A1 - Inertia starter : en ru
  • GB460358A - Improvements relating to surgical head-cooling devices : en
  • US2068797A - Method of and means for sorting articles : en
  • US2069124A - Prayer rail : en
  • US2068982A - Outboard motor bracket for canoes, etc. : en
  • US2069069A - Valve for motor vehicle suction lines : en
  • USRE20252E - Hacksaw frame construction : en
  • CH189060A - Process for the preparation of an organic salt of diguaiacyl phosphoric acid. : de en
  • US2069166A - Organo-mercury derivatives of 1, 2-aliphatic-diamine thiosulphates and process of producing them : en
  • DE641318C - Process for the production of partially microporous and partially non-porous rubber or hard rubber articles : de en
  • GB460535A - Improvements in or relating to tipping waggons and the like : en
  • US2068649A - Apparatus for printing on glass and the like : en
  • AT148548B - Bussole pouch. : de en
  • GB460398A - Discharge tubes and arrangements for keeping voltages constant : en
  • US2069008A - Manufacture of nuts : en
  • CA363776A - Continuous vulcanizer : en fr
  • DE641378C - Device for observing images, marks or the like printed on passing paper or fabric webs in connection with printing machines : de en
  • GB460381A - Improvements relating to cutter chains for coal-cutting machines : en
  • USD102890S - Design for an oil buhner or : en
  • SU50265A1 - Method of making oxide pastes, especially for cathodes of electron tubes : en ru
  • US2068682A - Relay winding : en
  • US2069050A - Pothead device : en
  • US2068875A - Pressure casting machine : en
  • US2068915A - Drill grinding appliance : en
  • FR808132A - Ion relay tube comprising an incandescent cathode and several actuators : en fr
  • GB460273A - Improvements in or relating to means for aerating fluids : en
  • AU105297B2 - Improvements in or relating to thermionic valves and to circuit arrangements incorporating the same : en
  • CH189049A - Process for the preparation of a monoazo dye. : de en
  • AT148500B - Warning signal device for crossings, especially on single-track railway lines. : de en
  • CH189039A - Process for the preparation of a water-soluble monoazo dye. : de en
  • CH188891A - Process for the production of an indigoid dye. : de en
  • FR808043A - Return stitch knitting machine : en fr
  • CA363705A - Hat sweat band : en fr
  • GB460570A - Improvements in or relating to radio receiving antenna systems : en
  • SU50201A1 - Method of drying peat massifs : en ru
  • PL24241B1 - A device for measuring the amount of liquid in a tank. : en pl
  • US2069123A - Gauge : en
  • CH189012A - Frames, in particular for motor vehicles. : de en
  • DE641351C - Current-independent overcurrent time release : de en
  • PL24244B1 - Apparatus for activating the levers of type typewriters, recording machines for punching the drag of similar machines. : en pl
  • FR808167A - New irreversible and non-removable curling tongs : en fr
  • US2069076A - Spray device : en
  • FR808037A - Improvements to pressurized fluid brake devices : en fr
  • GB460463A - School orrery : en
  • PL24243B1 - Wire for welding of cast iron and sink steel. : en pl
  • FR807954A - Reclosing circuit breaker prevented : en fr
  • FR808143A - Process for manufacturing transvestite masks and resulting industrial product : en fr
  • AT148482B - Potato planter. : de en
  • CH189007A - Method for assembling motor vehicles with a chassis frame forming part of the car body and motor vehicle assembled according to this method. : de en
  • CH188845A - Couch. : de en
  • PL24343B1 - A method of producing a headache remedy. : en pl
  • CH188881A - Process for the production of paraffin hydrocarbons from carbon oxide and hydrogen. : de en
  • CH188901A - Process for the production of printing plates for lettering printing. : de en
  • CA363649A - Vehicle headlight : en fr
  • DE641333C - Device for the actuation of control organs depending on a light-sensitive cell, e.g. B. selenium cell, falling intermittent light : de en
  • CH188877A - Manufacturing process of anhydrous aluminum chloride. : en fr
  • US2069189A - Hydraulic motion-controlling means : en
  • AT148403B - Mufflers for internal combustion engines. : de en
  • BE419235A - : fr
  • CH188991A - Circuit arrangement for teleprinter systems. : de en
  • AT148479B - Process for increasing the viscosity of tars. : de en
  • AU100074B2 - Improvements in centrifugal honey extractors : en
  • CA363742A - Bark peeling device : en fr
  • AT148549B - Orientation bus. : de en
  • CA363700A - Expanded metal making apparatus : en fr
  • SU49221A1 - Method of processing limp : en ru
  • SU50238A1 - Apparatus for heat treatment of carbon-containing materials : en ru
  • US2068712A - High temperature slow electromagnetic device : en
  • US2068844A - Radio construction : en
  • US2069172A - Separation of gases : en
  • PL24257B1 - Method of processing marine mammal meat. : en pl
  • US2068710A - Machine for operating on heels : en
  • GB460827A - Torque responsive device in automatic change speed gear mechanisms : en
  • GB460410A - Improvements in and relating to the treatment of silicate ores : en
  • GB460444A - Improvements in or relating to receptacles for containing substances in powder form : en
  • GB460579A - Improvements in or relating to light sensitive electron discharge devices : en
  • US2069097A - Knife grinder : en
  • US2068656A - Trap : en
  • US2069078A - Apparatus for producing cellular cementitious materials : en
  • USD102920S - Design for a lady s hat : en
  • AT148456B - Material composed of at least two metals, such as composite or molded bodies, in particular for electrical purposes, as well as processes for their production. : de en
  • US2068707A - Printing press : en
  • AT148472B - Process for the production of work surfaces, mating surfaces and. Like on machine parts, tools, etc. : de en
  • FR808035A - Wool treatment process : en fr
  • US2068821A - Portable firearm for firing bombs : en
  • SU50248A1 - The method of deflection of the cathode beam in the high-speed modulation in vision : en ru
  • US2068907A - Automatic train control system : en
  • IE14253L - Dried milk preparation : en
  • DE641229C - Rolling gear for cigar machines : de en
  • GB460411A - An improved thermostat of the kind wherein an expansible liquid is employed as the temperature element : en
  • SU49066A1 - Mask : en ru
  • SU50215A1 - Brake adaptation to gramophone : en ru
  • SU50228A1 - Motor starting device : en ru
  • USRE20253E - Control pedal : en
  • DE641266C - Toy cog railway with automatic release and locking device for the drive : de en
  • DE641275C - Metal permanent mold for casting metal pistons of various lengths : de en
  • FR807970A - Multi-piece sealing ring for elastic seals in stuffing boxes : en fr
  • GB460275A - Improvements in the manufacture and production of urea-formaldehyde resins : en
  • SU50218A1 - Method for qualitative and quantitative determination of carbon monoxide content in gas : en ru
  • PL24326B1 - Automatic device for replacing thread coils in mechanical weaving looms. : en pl
  • GR6255B - AUTOMATIC BOARD AND GAME. : el en
  • DE641382C - Rollable strip curtain : de en
  • CA363737A - Foot arch support : en fr
  • DK52611C - Soil Transporting Machine and Soil Leveling. : da en
  • GB460396A - Improvements relating to stereoscopic viewing apparatus : en
  • FR808112A - Sealing leads for the locations of the knots of ligature cords or the like : en fr
  • DE641278C - Sulfur dye preparations : de en
  • DE641336C - Electric radiant heating, especially for large flat surfaces such as roasting and baking ovens : de en
  • PL24249B1 - Liquid fuel appliance for lighting, heating and cooking. : en pl
  • DE641284C - Process for the preparation of high molecular weight hydrocarbons from isobutylene : de en
  • US2068639A - Electrical rail bond : en
  • CH188896A - Process for the production of a building material. : de en
  • USD102930S - Unitfd statfs patfnt offiff : en
  • DE641289C - Hydraulic drive for land vehicles, especially rail vehicles, by Foettinger gear : de en
  • FR808159A - Improvements to electromagnetic brakes for rail vehicles : en fr
  • US2068808A - Cutter chain : en
  • US2068929A - Power-transmitter : en
  • FR807964A - Tuning indicator tubes, more particularly for radio receivers : en fr
  • DK52597C - Procedure for making textile fabrics water-repellent. : da en
  • GB460630A - Improvements in or relating to the manufacture of tissue-selective or specific healing agents : en
  • DE641273C - Circuit arrangement for automatic or semi-automatic private branch exchanges with consultation facility : de en
  • DE641419C - In the vertical plane revolving endless chain o. The like. Mitnehmerfoerderer for bulk goods, which removes the goods with its upper strand from several columns arranged one behind the other and leads it with its lower strand to the delivery point : de en
  • SU50296A1 - Respirator : en ru
  • SU50192A1 - Device for rotary core drilling : en ru
  • CA363763A - Cage perch mounting : en fr
  • CH188820A - Installation for sorting household waste. : en fr
  • AT148506B - Clamping piece for lacing. : de en
  • CH188879A - Process for the preparation of perhydro-p-benzyl-phenoxyacetic acid. : de en
  • CH189063A - Process for the preparation of a stereoisomeric alcohol. : de en
  • DE641366C - Sealing of cable entries in housings for electrical devices by means of a rubber ring : de en
  • DE641409C - Process for the treatment of petroleum used for the production of lubricating oil : de en
  • CA363630A - Variable condenser : en fr
  • CH188866A - Lingerie article in fabric in several layers. : en fr
  • GB460417A - Wrist watch : en
  • GB460431A - Improvements in and connected with steam super-heaters : en
  • SU50289A1 - Piston subjected to pressure from a gaseous or liquid medium : en ru
  • US2068739A - Automobile heater : en
  • SU50235A1 - Method for wet coal enrichment in heavy liquids : en ru
  • US2069059A - Method of producing ceramic ware : en
  • DE641346C - Compulsory shooter drive : de en
  • CA363665A - Aliphatic alcohol production : en fr
  • US2069065A - Compass : en
  • SU50249A1 - Handling device : en ru
  • SU50195A1 - Burov crown : en ru
  • SU50279A1 - Adaptation to firearms for testing building materials for strength : en ru
  • AT148550B - Superimposition reception switchgear with automatic coordination. : de en
  • CA363722A - Vehicle wheel : en fr
  • FR807923A - Two-cylinder water column machine with piston pump controlled by it : en fr
  • GB460313A - Shelving provision for transport vehicles : en
  • GB460248A - Manufacture of 2-aminoquinizarin and the substitution products thereof : en
  • FR807927A - Method and device for preparing carbon black : en fr
  • FR808146A - Storm lantern burner with cap and flame plate attached to the wick sleeve : en fr
  • PL24311B1 - Can with hinged lid. : en pl
  • US2068647A - Combined antislipping milk pail and cowtail holder : en
  • DE625348C - DF method to eliminate the nighttime effect : de en
  • GB460769A - An improved trailer for road vehicles : en
  • US2068906A - Centralized traffic controlling system for railroads : en
  • US2068758A - Rail joint : en
  • PL24341B1 - A method of vulcanizing gas hoses with metal hoses inside. : en pl
  • SU50236A1 - Well curvature measuring instrument : en ru
  • AT148452B - Sharpening device for knives. : de en
  • FR808136A - Light metal hunting cartridge : en fr
  • GB460369A - Improvements in indicating and registering mechanisms particularly adapted for fluiddispensing apparatus : en
  • SU50206A1 - The method of removing dark deposits from the inner surface of incandescent bulbs when they are regenerated : en ru
  • CH188858A - Washing and cleaning agents. : de en
  • PL24337B1 - A method of concentrating aqueous acetic acid solutions and an apparatus for carrying out the method. : en pl
  • SU50258A1 - Gas-filled electric incandescent lamp : en ru
  • AT148409B - Evaporator and steam power plant to utilize the steam generated in it. : de en
  • CA363650A - Welding electrode : en fr
  • PL24331B1 - Chain crank mechanism for lifting and leveling windows in carriages and other vehicles. : en pl
  • AT148531B - Tube circuit for the purposes of modulation, demodulation, amplification, etc. : de en
  • CA363724A - Grinding wheel : en fr
  • CH188962A - Centrifugal switch, especially for centrifugal starters. : de en
  • DE636064C - Fresh water treatment system : de en
  • DE641247C - Process for the production of a fertilizer by digesting rock phosphate : de en
  • US2069022A - Automatic valve : en
  • GB460504A - Improvements in or relating to rotation mechanisms for rock drills : en
  • US2068705A - Oven valve : en
  • IE14736L - Tempering glass articles : en
  • US2068760A - Hat ornament : en
  • US2068843A - Divided roller bearing : en
  • US2068776A - Power transmission : en
  • US2069025A - Window sash balance : en
  • US2068731A - Car retarder for railroads : en
  • FR807978A - Improvements to radio-receiver systems : en fr
  • FR808172A - Scale with direct reading and automatic printing of the weight : en fr
  • GB460318A - Improvements in or relating to aircraft : en
  • AT148425B - Device for recording acoustic vibrations. : de en
  • CH188967A - Electric switch. : en fr
  • GR6264B - ELECTRICAL WRITING MACHINES AND MACHINES OF ACCOUNTS WITHOUT CAMELONE TAPES IMPRESSED BY GARLIC ELECTRIC METAL. : el en
  • CA363756A - Antislip device : en fr
  • US2069082A - Automatic reclosing electric circuit interrupter : en
  • US2069041A - Method of and apparatus for manipulating articles, such as talking machine or phonograph records : en
  • US2068976A - Viscosimeter : en
  • AT148541B - Device for coupling oscillation circuits. : de en
  • US2068662A - Self-aligning picture bail : en
  • USD102916S - Design for a chair : en
  • PL24276B1 - Observation telescope. : en pl
  • US2068667A - Rail straightening implement : en
  • US2068858A - Filtering nipple : en
  • USD102908S - Design for an automatic sign : en
  • US2068642A - Identification nest for domestic fowl : en
  • AU100129B2 - Bidet attachment for water closets : en
  • BE419119A - : en fr
  • CH188977A - Process for the manufacture of capacitors. : de en
  • US2068983A - Pocket smoking kit : en
  • PL24268B1 - A method of stabilizing tetryl. : en pl
  • US2069175A - Salicylic esters of acyl glycols and process for the manufacture of same : en
  • CA363709A - Pole reinforcement : en fr
  • AT148434B - Cable termination for coaxial cables. : de en
  • US2068740A - Automobile heater : en
  • US2069134A - Game device : en
  • CA363674A - Carbureter : en fr
  • GB460565A - Improvement in processes of manufacturing a creped cellulosic wadding : en
  • CH189015A - Device for steering vehicles by moving the drive running means at different speeds on both sides of the vehicle, especially for caterpillar drives. : de en
  • PL24349B1 - Device for setting the gyro riser. : en pl
  • CA363746A - Photographic material carrier : en fr
  • AT148514B - Dummy for cheese or the like, especially Emmentaler. : de en
  • CH188957A - Compression refrigeration machine. : de en
  • GB460236A - Improvements in or relating to electron discharge devices and circuit arrangements incorporating the same : en
  • GB460534A - New or improved remote control mechanism for power-driven boats : en
  • PL24316B1 - A method of producing dry preparations from total glands, especially from the animal pancreas. : en pl
  • AT148540B - Electron tube amplifier. : de en
  • AU100094B2 - Manufacture of basic esters of polyaryl-acetic acids : en
  • FR808181A - Advanced locking of rocker shotguns : en fr
  • AT148438B - Cable distributors, in particular for television cables. : de en
  • AU100089B2 - Power chisel apparatus : en
  • CH189061A - Process for the preparation of an organic salt of diguaiacyl phosphoric acid. : de en
  • PL24323B1 - Rotary printing machine. : en pl
  • SU50237A1 - Coal Loading Truck : en ru
  • US2068837A - Inlet nipple screen adapter : en
  • US2069081A - Electric incandescent lamp : en
  • PL24274B1 - Continuously variable friction pedal. : en pl
  • AT148464B - Device for sieving, straining or filtering liquids or powdery substances with the help of centrifugal force. : de en
  • US2068737A - Locking device for two relatively disconnectable parts : en
  • US2068917A - Triangular socket joint : en
  • SU50283A1 - Dual deceleration trigger and plate friction clutch for internal combustion engines : en ru
  • PL24332B1 - Permanent water emulsion and the method of its production. : en pl
  • US2068754A - Car retarder for railroads : en
  • US2068651A - Shoe and process of making same : en
  • US2069079A - Stem for electric lamps and similar articles : en
  • FR808099A - Improvements to rollers and cylinders for paper machines : en fr
  • US2068646A - Color mixing machine : en
  • US2068643A - Pressing element : en
  • FR808120A - Power limiter and fuel saver for gasoline engine or any other liquid fuel : en fr
  • FR808018A - Tower : en fr
  • GB460466A - Improvements relating to vapour engines : en
  • GB460580A - Improvements in photographic development : en
  • GB460320A - Improvements in means for controlling hydraulic turbines : en
  • GB460356A - Improvements in and relating to electron discharge devices : en
  • US2069004A - Trailer for road vehicles : en
  • FR808160A - Further training in paper and board making machines : en fr
  • CH188872A - Roller mill with adjacent, independently adjustable grinding passages. : de en
  • CH188975A - Ion rectifier tube with activated hot cathode and at least one control grid. : de en
  • GB460290A - Improvements in and relating to blowpipes or "torches" chiefly designed for use in producing flames for metal cutting, welding, annealing, brazing, scarfing, lead burning and the like : en
  • DE641209C - Process for the preservation of powders and pastes containing per se unstable constituents : de en
  • CH189036A - Process for the preparation of a water-soluble monoazo dye. : de en
  • US2068722A - Backfire release : en
  • GB460304A - Improvements in and relating to the lighting of road vehicles : en
  • DE641311C - Pointing machine : de en
  • FR808071A - Improvements to dispensers for liquids in barrels : en fr
  • SU50212A1 - Method of welding hard alloys : en ru
  • GB460462A - Improvements in coupling devices for motor trailers : en
  • US2068893A - Apparatus for producing laminated materials : en
  • AT148412B - Procedure for grid control in converters. : de en
  • DE641219C - Plug device with an insulating washer that moves in front of the live plug shells when the plug is pulled out : de en
  • CH188919A - Electrical sensing and setting device connected to a measuring device, in particular to an automatic balance, for the numerical determination of the measured value. : de en
  • US2068773A - Over-running clutch : en
  • USD102959S - Design for an egg beater or simi : en
  • GB460263A - Removable containers for centrifugal extractors : en
  • CA363752A - Cord fabric : en fr
  • FR807990A - Improvement in the arrangement of elements in radioelectric assemblies : en fr
  • AT148539B - Method for modulating a magnetron. : de en
  • GB460450A - Improvements relating to taps or faucets : en
  • FR807909A - Electrical device to give impulses : en fr
  • FR807980A - Improvements to automatic igniters : en fr
  • GB460405A - Improvements in and relating to the manufacture and production of safety paper : en
  • GB460423A - Improvements in or relating to the manufacture of cells for electrolytic or electrostatic condensers or secondary batteries : en
  • GB460482A - Devices for supporting seating surfaces : en
  • GB460517A - A medium for removing hair or wool and a process for the production thereof : en
  • CH188965A - Device to be attached to certain bodies to be moved to close or open at least one electric circuit. : de en
  • DE641339C - Electromagnetic pickup : de en
  • CA363729A - Safety paper : en fr
  • AT148406B - Interchangeable internal combustion engine. : de en
  • AT148522B - Harp-like string instrument. : de en
  • CH189041A - Process for the preparation of a monoazo dye. : de en
  • USD102945S - Design for a compact case : en
  • US2069192A - Automatic roaster : en
  • AT148435B - High voltage fuse. : de en
  • FR808010A - Process for preparing polycarboxylic chlorides : en fr
  • GB460469A - Improvements in machines for the dynamic balancing of rotary parts : en
  • FR808007A - Process for extracting liquid mixtures : en fr
  • GB460218A - Improvements in or relating to connecting members for anti-skid chains : en
  • CH188986A - Preparations for dental and oral care. : de en
  • US2068883A - Direct current welding apparatus : en
  • PL24246B1 - A method of producing organic products containing active oxygen and used for the bleaching of organic materials. : en pl
  • BE419201A - : en
  • CA363734A - Stoker speed gear : en fr
  • IE14631L - Extensible electric cords : en
  • FR808130A - Carburetor for internal combustion engines : en fr
  • AT148493B - Mitnchmervorrichtung for transport trolleys of overhead towing railways, rope posts u. like : de en
  • CH188980A - Electric heating pad with a filling of paraffin, paraffin mixture or other tar derivatives. : de en
  • US2068887A - Tire chain applying tool : en
  • PL24358B1 - Shaving knife sharpener. : en pl
  • CH188873A - Oven. : de en
  • SU50242A1 - Sodium bicarbonate preparation method : en ru
  • US2069186A - Copying camera equipment unit and film magazine used therewith but also constituting a distinct unit : en
  • USD102949S - Design for a font of hebrew type : en
  • AU100102B2 - Process forthe manufacture of insecticides or fungicides : en
  • CH189057A - Wood impregnation process through osmosis. : de en
  • PL24299B1 - The devices will provide a stock of thread guides, especially in a cup for natural and artificial silk, : en pl
  • US2068794A - Combination faucet : en
  • US2068975A - Composite article of manufacture : en
  • USD102872S - Design for a sink : en
  • US2069163A - Bearing device for soot blower elements : en
  • CA363772A - Furnace pre-heater and humidifier : en fr
  • AT148524B - Shirt with attached turn-down collar. : de en
  • CA363685A - Carbonylic compound production : en fr
  • GB460458A - Improvements in multi-stage rotary pumping units : en
  • PL24251B1 - : en pl
  • SU50254A1 - Switchgear : en ru
  • PL24304B1 - Method for pulling long fibers and medium length fibers, such as artificial fibers, cifted fibers of artificial silk, wool, linen, shoulder, hemp and mixed fibers on cotton pullers. : en pl
  • PL24306B1 - V-belt pedal to change the speed of the pulleys. : en pl
  • SU50233A1 - Mechanism for transferring motion to the working shaft from the cylinder in a piston pulling machine : en ru
  • PL24294B1 - A method of dewaxing oils. : en pl
  • US2068990A - High frequency oscillation generator : en
  • USD102897S - Design for a shoe : en
  • CH189025A - Dishwasher. : de en
  • CH189064A - Process for the preparation of a stereoisomeric alcohol. : de en
  • SU50197A1 - Coal machine (mining combine) : en ru
  • US2068699A - Adjustable four-way view framing device for view finders : en
  • US2069038A - Telephone subscriber's substation : en
  • CH188961A - Device for avoiding the disturbances associated with the transformer voltage in AC collector machines. : de en
  • US2069060A - Alkali-free ceramic materials and method of making same : en
  • USD102881S - Design fob a combination desk set : en
  • USD102964S - Design for a duplicating machine side : en
  • AT148451B - Device for electrical resistance welding, in particular for spot or spot weld welding. : de en
  • DE641240C - Trocar : de en
  • DE641286C - Process for the production of dicalcium phosphate : de en
  • US2069113A - Pinking attachment for sewing machines : en
  • FR807913A - Sewing machine cabinet : en fr
  • GB460339A - Improvements in and relating to water heaters : en
  • FR807953A - Improved process and machine for organizing natural and artificial silk : en fr
  • CA363686A - Olefine and derivative production : en fr
  • SU50272A1 - Shaped brick : en ru
  • USD102954S - Design foe a saucepan or similar : en
  • US2068696A - Gauge line purging system for oil cracking plants : en
  • BE418812A - : en fr
  • US2068817A - Copper alloy amenable to heat treatment : en
  • AT148414B - Arrangement for converting electrical energy with the aid of grid-controlled gas discharge vessels. : de en
  • AT148523B - House signal system with feedback. : de en
  • US2068697A - Refrigerating apparatus : en
  • US2069092A - Diaper : en
  • US2068771A - Corner protector : en
  • US2069066A - Pedal pad : en
  • US2069130A - Glass blowing machine : en
  • AU140536A - Improvements in and relating to the manufacture of magnetic materials : en
  • GB460220A - Improvements in or connected with fastening devices : en
  • GB460377A - Improvements in and relating to induction systems of internal combustion engines : en
  • AT148420B - Distribution cable for television receivers. : de en
  • CA363775A - Continuous vulcanizer : en fr
  • CH189019A - Combustion-electric drive. : de en
  • US2068793A - Process for the rapid recarburization of pig iron melted in a cupola furnace : en
  • US2068886A - Combine baler : en
  • US2068799A - Tempering glass : en
  • US2069037A - Convertible jar closure : en
  • US2069151A - Process of reclaiming rubber : en
  • CH188900A - Collection book for loose sheets of paper, with rings arranged on the spine. : de en
  • PL24273B1 - Cooling appliance for storing and keeping fresh goods. : en pl
  • AT148532B - Reading device for radio receivers. : de en
  • DE641245C - Pilgrim roller : de en
  • CH188827A - Electric discharge tube with cadmium vapor filling. : de en
  • USD102866S - Design for a flashlight casing : en
  • CH188880A - Process for the preparation of a nitration product of m-chlorobenzotrifluoride. : de en
  • CH188813A - Scissors. : de en
  • DE641215C - Control valve for filter for cleaning or dehumidifying water : de en
  • US2068802A - Cutter chain : en
  • US2068963A - Power transmitting coupling : en
  • US2069011A - Adjustable container holder : en
  • DE641269C - Process for the production of condensation products with drying properties : de en
  • US2068941A - Process and apparatus for manufacturing insulators : en
  • USD102924S - Design fob a textile fabric : en
  • AT148536B - Interchangeable carrier for microscope condensers and the like like : de en
  • AT148454B - Beam clamp for the curtain rail and cover strip. : de en
  • DE641434C - Device for bundling cigarettes : de en
  • DE641442C - Device for comparing the train with locomotives : de en
  • FR808005A - Advanced combine harvester : en fr
  • AT148449B - Rettig cutter. : de en
  • US2068665A - Detachable mud collector for drill pipes : en
  • AT148436B - Procedure and arrangement for testing high-voltage insulation. : de en
  • AT148519B - Peaked cap. : de en
  • CA363765A - Weed root extractor : en fr
  • US2068942A - Power operator control mechanism : en
  • US2068692A - Device for treating stupes and the like : en
  • US2068918A - Rotary piston machine : en
  • DE641398C - Control device for circulation steam heating of railway vehicles : de en
  • AT148430B - Control switches, in particular for refrigeration systems. : de en
  • SU49423A1 - Valve thrower for open-hearth furnace : en ru
  • SU50256A1 - Induction motor : en ru
  • GR6265B - DISINFECTANT LIQUID. : el en
  • GB460228A - Improvements in or relating to shoe upper conforming machines : en
  • FR807983A - Improvements to ignition distributors for internal combustion engines : en fr
  • FR808190A - Improvements to star-shaped motor distribution controls : en fr
  • PL24308B1 - The method of curing photographic gelatin emulsions and gelatin solutions. : en pl
  • DK52610C - Device at Vending Machines. : da en
  • AU169536A - Improvements in or relating to superheterodyne receiving apparatus with automatic correction ofthe tuning : en
  • CH189022A - Drive on electrically operated cogwheel vehicles with pin-bearing motors. : de en
  • GB460706A - Improvements in and relating to automatic firearms : en
  • GR6258B - BOTTLE CAP IN GENERAL NOT DISCLOSING THE BOTTLE. : el en
  • CH189048A - Process for the preparation of a monoazo dye. : de en
  • GB460280A - Improvements in or relating to sound film reproducing apparatus : en
  • GB460403A - Improvements relating to reversing hydraulic transmission gears : en
  • CH188987A - Procedure for displaying Pregnendion-3.20. : de en
  • DE641298C - Screen (fluorescent screen) lighting up under the influence of rays : de en
  • GB460552A - Improvements in pantographic copying and engraving machines : en
  • AT148445B - Device for holding objects to be ground or polished. : de en
  • AT148480B - Device for the distillation of raw resin. : de en
  • DE641338C - Coreless induction furnace : de en
  • FR807968A - Process for making dyed yarns and finished articles : en fr
  • US2068881A - Mechanism for specially forming, and for fitting releasing means of wire to, bottle closure caps of the crown seal variety : en
  • US2069100A - Waste pipe cleaner : en
  • DE641360C - Device for preventing the formation or deposition of ice and snow on vehicles, namely aircraft : de en
  • US2068838A - Charge forming device : en
  • DE641186C - Labeling machine : de en
  • US2069084A - Venetian blind : en
  • FR807952A - Transportable equipment for making ice cream : en fr
  • FR807960A - Accessory for devices used to keep heel parts lowered in straight picking looms for single-operation production of stockings with heel parts running while the middle part is at rest : en fr
  • DE641287C - Process for the production of salts and mixed salts which contain ammonium and nitrate nitrogen side by side : de en
  • FR808063A - Improvements to light sources for photographic sound recording : en fr
  • GB460553A - Improvements in and relating to apparatus for the starting and landing of aircraft on water : en
  • GB460434A - Improvements in ship's shaft brackets : en
  • DK52603C - Terry machine. : da en
  • DE641282C - Breakwater : de en
  • FR808012A - Outboard Motor Improvements : en fr
  • GB460472A - Improved process and apparatus for drying plastic or semi-plastic material : en
  • FR808048A - Improvements to light discharge lamps : en fr
  • GB460341A - Improvements in mixing machines for powdered or granular materials : en
  • GB460492A - Improvements in filling and weighing machines : en
  • DE641248C - Electrically driven compression refrigeration system : de en
  • DE641305C - Oil burner that can be pushed into the furnace opening and is connected to a fuel container : de en
  • US2068762A - Core drill : en
  • US2068653A - Wave operated pump : en
  • US2068815A - Flexible centrifugal pot for spinning or doubling all kinds of fibers and device for discharging it : en
  • PL24285B1 - Igniting and stimulating mass for blast fuses. : en pl
  • US2068897A - Gas mixing valve : en
  • US2069191A - Conversion of hydrocarbon oils : en
  • FR808055A - Apparatus for transporting small packages and the like : en fr
  • CA363717A - Boiler : en fr
  • US2068823A - Air gun : en
  • US2068890A - Automatic three-dimensional pattern controlled milling machine : en
  • AT148494B - Paddle propeller. : de en
  • US2068655A - Railway signaling system : en
  • US2068663A - Indicator for fluid variables : en
  • BE419208A - : en
  • CH188953A - Double regulator for Kaplan turbines. : de en
  • CH188968A - Installation switch with sliding contacts. : de en
  • CH188954A - Muffler on internal combustion engines. : de en
  • DE641216C - Process for improving the shelf life of glauconite to be used as a base exchanger : de en
  • GB460518A - Improvements in or relating to tubular steam generators : en
  • US2069137A - Sound film apparatus : en
  • AT148419B - Electrical resistance with negative temperature coefficient. : de en
  • CA363758A - Transportable dock : en fr
  • DK52598C - Telephone system with Selector operation and Call initiation at Alternating current. : da en
  • GB460493A - Improvements in and relating to transformer windings : en
  • US2068943A - Carpet sweeper dustpan : en
  • DE641357C - Device for conditioning tobacco : de en
  • FR808095A - Safety deposit box : en fr
  • FR808114A - Method and device for protecting pipes and the like against the action of cold and heat, and against atmospheric influences : en fr
  • GB460390A - A combined cutting and bending or shaping machine for metal strip : en
  • FR808104A - Hose reel for watering or fighting fires : en fr
  • FR808152A - gas heating element : en fr
  • GB460372A - Manufacture of amino-carboxylic acid nitriles and amino-carboxylic acids : en
  • DE641236C - Cinematographic playback device with optical compensation : de en
  • GB460340A - Improvements in or relating to clutch plates : en
  • GB460438A - Improvements in or relating to remote control apparatus : en
  • GB460770A - Improvements in change-speed gearing : en
  • GB460520A - Improvements in or relating to devices for recording on or reproducing from sound films : en
  • US2069141A - Means for connecting metallic and nonmetallic members : en
  • GB460252A - Improvements in or relating to photographic roll film cameras : en
  • US2068748A - Thermo-compressor : en
  • US2068709A - Air cooling means for vehicles : en
  • USPP230P - Hybrid poplar : en
  • GB460360A - Improvements in or relating to bed-settees : en
  • SU50299A1 - Gun mount for anti-aircraft fire : en ru
  • DK52618C - Device at Ball Bearings. : da en
  • GB460383A - Improvements in and relating to the generation of power by the combustion of solid fuel in engine cylinders : en
  • SU50307A1 - Loom Shuttle : en ru
  • US2068863A - Sectionally supported wall : en
  • US2068997A - Rubber article such as baby pants : en
  • SU50306A1 - Device for pneumatic supply of bottle caps to a capping machine : en ru
  • US2068683A - Mechanism for assembling bearings : en
  • USRE20256E - Piston ring : en
  • DE641407C - Method for frequency control of self-excited inverters operated with grid-controlled steam or gas discharge paths : de en
  • PL24309B1 - Device for developing photographic prints. : en pl
  • PL24339B1 - Electromagnetic rail brake. : en pl
  • AT148446B - Synchronized alternating current controlled, electrically or mechanically driven pendulum clock. : de en
  • AT148481B - Wet basket for treating tobacco or other plants that can be used for smoking purposes. : de en
  • US2068736A - Train dispatching system for railroads : en
  • AT148535B - Overlay Receiver. : de en
  • US2069168A - Vaginal irrigating appliance : en
  • CA363687A - Motor fuel production : en fr
  • PL24335B1 - A set of wheels for vehicles running on rails. : en pl
  • FR807901A - Improvements to drivers for so-called indefinable waves : en fr
  • CH188933A - Process and device for the extraction of pure light metals. : de en
  • CH188973A - Device for holding fuse cartridges in the plug head. : de en
  • US2068954A - Control mechanism : en
  • CH188882A - Process for the preparation of a 2-oxychrysenic monosulfonic acid. : de en
  • CH188941A - Clamp for clamping tension members. : de en
  • CA363640A - Liquid dispenser : en fr
  • AT148525B - Process for the production of oil from wells. : de en
  • CA363662A - Rubber article joining apparatus : en fr
  • CH189053A - Process for the preparation of a monoazo dye. : de en
  • CH189028A - Process for the preparation of 2-amino-1,3-di- (methylsulfonyl) -benzene. : de en
  • SU50217A1 - Gas analyzer : en ru
  • US2068690A - Method of recovering compounds from zinc and lead ores : en
  • US2068870A - Dirigible : en
  • USD102904S - Design for a combined beverage con : en
  • AU14436A - Improvements in centrifugal honey extractors : en
  • CA363702A - Can weighing and sorting machine : en fr
  • BE418955A - : en fr
  • FR808103A - Incandescent light source for television transmitters : en fr
  • GB460415A - Improvements in machines for shearing steel hawsers : en
  • GB460329A - Method of packing powdered mixtures : en
  • GB460659A - Improvements relating to the polymerisation of gaseous olefines : en
  • AT148448B - Device for fixing hinged windows that can be rotated about a horizontal axis. : de en
  • BE419233A - : en fr
  • FR807977A - Vapor-tight connection between the flue tubes and the tube plate located on the firebox side in locomotive boilers : en fr
  • FR808079A - Aircraft braking mechanisms : en fr
  • FR808176A - Improvements to cableways with two carrier cables : en fr
  • FR807962A - Device for dice games : en fr
  • GB460353A - Improved means for operating the lids of jugs and the like : en
  • US2068730A - Gyrating screen : en
  • AU28136A - Power chisel apparatus : en
  • CA363750A - Lock gaff : en fr
  • CH188910A - Split-pin ski pole. : de en
  • FR807976A - Rail joint : en fr
  • FR808019A - Lighting fixtures improvements : en fr
  • PL24345B1 - Shipping and utility packaging for catgut or other surgical suturing material made of animal or synthetic materials. : en pl
  • DK52621C - Motor vehicle, in particular Trolley trolley. : da en
  • PL24293B3 - Device for gassing liquid fuel. : en pl
  • CA363643A - Humidifier : en fr
  • US2069049A - Shock absorber : en
  • US2068871A - Powder spraying device : en
  • US2068804A - Natural gas dispenser : en
  • CA363703A - Cover glass : en fr
  • CH188819A - Cantilever on blinds. : de en
  • CH188905A - Process for making stable photographic emulsions. : de en
  • US2068919A - Process for the production of sound records : en
  • CA363706A - Paper product : en fr
  • US2068931A - Centralized traffic controlling system for railroads : en
  • US2069061A - Synchronizing system : en
  • CA363751A - Anode shield : en fr
  • PL24315B1 - Landing gear pulled into the fuselage. : en pl
  • US2069052A - Casing machine : en
  • CA363645A - Shelf type lubricator : en fr
  • CH188887A - Process for the preparation of an azo dye. : de en
  • CH189005A - Hydraulic brakes, in particular for motor vehicles. : de en
  • SU48858A1 - Method of making suitcases, boxes, etc. : en ru
  • SU50300A1 - Sight device for command devices : en ru
  • US2068901A - Vehicle steering mechanism : en
  • US2069099A - Apparatus for finishing bearing surfaces : en
  • PL24265B1 - The method of producing gaskets. : en pl
  • CH188865A - Carpet knocking device. : de en
  • DE641310C - Storage of the drive motor, in particular on motor vehicles : de en
  • AT148411B - Valve control for internal combustion engines with two spring-loaded inlet and outlet valves each. : de en
  • CH189066A - Single axle drive with spring clutch for vehicles. : de en
  • DE641399C - Process for the preparation of bromine derivatives of brominable Kuepen dyes of the anthraquinone series : de en
  • CH188942A - Device for connecting a watch strap to a watch case. : de en
  • CA363768A - Tubular joint : en fr
  • DE641235C - Device for longitudinal cutting of webs of paper, cardboard, metal, cell horn or the like. : de en
  • DE641348C - Process for the preparation of resoles : de en
  • DE641395C - Thermal insulation material : de en
  • US2068751A - Locomotive : en
  • DE641221C - Tooth filler : de en
  • FR808141A - Further training in central heating installations : en fr
  • USRE20257E - Ladder web of venetian blinds : en
  • GB460559A - Device for catching lubricating oil for crankshaft and connecting rod bearings of reciprocating engines, for example, internal combustion engines : en
  • FR808100A - Process for preparing an o-hydroxycarboxylic acid : en fr
  • FR808186A - Motor car hood locking system remotely controlled from inside the vehicle : en fr
  • FR807937A - Target : en fr
  • GB460355A - Improvements in and relating to electrical impedance networks : en
  • USD102909S - Design fob a coat : en
  • DE605707C - Impact-resistant protective insert for headgear : de en
  • US2068898A - Circuit controlling apparatus : en
  • FR808161A - Improvements in the electrical servo-control of direct current motors driving independent mechanical transmissions : en fr
  • GB460537A - Improvements in mail chutes : en
  • FR807949A - Installation for superimposing control currents with a frequency different from that of the network on high current networks : en fr
  • GB460485A - Spring anchoring device for use in spring seats and the like : en
  • GB460838A - Improvements in hydraulic torque converters : en
  • DE641383C - Coil spring friction clutch : de en
  • DK52617C - Apparatus for the production of air foam by mechanical means. : da en
  • GB460512A - Improvements in or relating to intaglio printing machines : en
  • US2068688A - Knitting machine : en
  • US2068732A - Automobile fender : en
  • USD102884S - Design for a printed textile fabric : en
  • CH189052A - Process for the preparation of a monoazo dye. : de en
  • US2069136A - Apparatus for recording and reproducing sounds : en
  • US2069147A - Furrow opener : en
  • USD102923S - Design for a textile fabric : en
  • AT148527B - Guide rails for circular saws. : de en
  • US2068910A - Process for canning oatmeal porridge : en
  • FR807974A - Improvements made to machines to operate gears or other similar components intended to work together : en fr
  • FR808053A - Device for operating t receivers. s. f. : en fr
  • GB460704A - Improvements in or relating to optical projecting apparatus : en
  • US2068681A - Apparatus for the production of light metals : en
  • US2069093A - Bottle closure : en
  • DE1397040U - : de en
  • FR808158A - Method and device for obtaining relief photographs : en fr
  • CA363761A - Fastener seal : en fr
  • US2068839A - Seal for ink housings of printing presses : en
  • AU100127B2 - Cleaning roll : en
  • CA363655A - Laminated glass : en fr
  • DE641361C - Command system : de en
  • AT148528B - Device and means for drying, disinfecting and deodorizing footwear. : de en
  • CA363658A - Tubing welding apparatus : en fr
  • PL24305B1 - Electric regulating resistor or voltage divider. : en pl
  • AT148469B - Paints. : de en
  • CH188988A - Preparations for coloring living hair. : de en
  • FR808066A - Current core with magnetic shunt for induction measuring instruments : en fr
  • GB460501A - Improvements in or relating to automatic mechanisms for magazine gramophones : en
  • US2068904A - Galvanizing process : en
  • PL24289B1 - A method of producing unsaturated alcohols or saturated carbonyl compounds. : en pl
  • PL24298B1 - The method of producing the photosensitive layer. : en pl
  • AU167736A - Process forthe manufacture of insecticides or fungicides : en
  • AU17636A - Improved water heater : en
  • US2069152A - Recording tachometer : en
  • FR808009A - Advanced articulation device for spectacle frames : en fr
  • FR808166A - Method and apparatus for sterilizing, preserving and vitaminating butter : en fr
  • USD102968S - Design for a combined bowl and tray : en
  • FR808185A - Improvements to flow meters : en fr
  • GB460278A - Improved machines for manufacturing artificial stone specially applicable for the manufacture of concrete tiles : en
  • GB460447A - Improvements in or relating to teleprinter apparatus : en
  • FR807951A - Process for preparing styrene polymerization products : en fr
  • CA363638A - Sulphur production : en fr
  • CH188837A - Electric cooker with removable complementary monobloc group. : en fr
  • AT148465B - Process for the production of objects from lead alloys containing tellurium. : de en
  • CH188828A - Device for cooling circulating gases in dry coke extinguishing systems. : de en
  • FR808108A - Conical bolt with nut at each end : en fr
  • US2068812A - Shipping container : en
  • US2069072A - Mattress cover and method of making the same : en
  • CH188904A - Method of making a photographically important body. : de en
  • CH188983A - Process for the preparation of di- (3,4-diaminochinaldyl-6) urea. : de en
  • US2068830A - Memorial plaque : en
  • US2069029A - Economizing motor fuel apparatus : en
  • USD102973S - Design for a piano case : en
  • CA363731A - Shoe heel : en fr
  • AT148408B - Control device for impeller turbines. : de en
  • CH188856A - Device on looms for cutting the thread when changing bobbins. : de en
  • CH188964A - Device socket with heat choke. : de en
  • AT148515B - Vessel for pouring out predetermined amounts of liquid, especially milk. : de en
  • CA363635A - Drain tile connector : en fr
  • CA363749A - Stove : en fr
  • AT148518B - Photographic apparatus. : de en
  • US2069142A - Manifold bookkeeping leaf : en
  • CH189006A - Steering device on bidirectional road vehicles. : de en
  • FR807922A - Improvements to mechanical razors : en fr
  • FR808014A - Process for preparing azo dyes : en fr
  • FR807969A - Special slide rule for springs : en fr
  • US2068659A - Tubing catcher : en
  • US2068674A - Door hanger and track : en
  • US2068791A - Water flow gas calorimeter : en
  • US2069126A - Revolving connecter : en
  • PL24359B1 - : en pl
  • CA363735A - Buckle : en fr
  • DE641279C - Arrangement for measuring earth resistance : de en
  • DE641411C - Method for measuring car bodies with a weighing device : de en
  • US2069024A - Process and apparatus for clarifying coal slurry and the like : en
  • DE641425C - Thickness planer : de en
  • SU50227A1 - Steering wheel : en ru
  • US2069013A - Plug valve : en
  • US2069002A - Thermostatic control mechanism : en
  • US2069047A - Aircraft control : en
  • FR808113A - Photoelectric posometer for photographic applications : en fr
  • US2068753A - Washing machine : en
  • US2068809A - Method of permanent waving hair : en
  • US2068967A - Lamp globe : en
  • CH188844A - Folding seat. : en fr
  • SU50275A1 - The method of obtaining rubber-like mass of petroleum, shale and other oils : en ru
  • CH189014A - Safety brake for motor vehicles. : en fr
  • US2068723A - Metallic packing for variable pressures : en
  • CH188920A - Balance beam with sliding weights for sliding weight scales. : de en
  • USD102915S - Design foe a chair : en
  • GB460476A - A device for regulating the action of brakes : en
  • AT148467B - Process for the production of colored lacquers and film-forming coatings. : de en
  • CA363770A - Dispensing case : en fr
  • GB460567A - Improvements in and relating to control devices for fluid distribution systems : en
  • US2069162A - Relay : en
  • FR808046A - Lubricant that can be used at high temperature and its manufacturing method : en fr
  • FR808192A - Check valve for all applications : en fr
  • DE641389C - Process for the preparation of sulfur-containing clippings from protein fission products : de en
  • GB460560A - Improvements in suction nozzles for vacuum cleaners : en
  • US2068782A - Plastic for laminated safety glass : en
  • FR807965A - Hernial belt with elastic pad with rational pressure made up of rot-proof and waterproof elements : en fr
  • DE641375C - Angled rolling mill for rolling hollow bodies with adjustable rollers : de en
  • GB460243A - Improvements in plunger locks or latches : en
  • SU50229A1 - Device for automatically dropping fuel tanks from aircraft : en ru
  • DE641362C - Absorption refrigeration machine that works with pressure equalizing gas : de en
  • USD102972S - Design for a display stand : en
  • GB460312A - An improved thermostat : en
  • DE637579C - Drive for X-ray screens : de en
  • FR808184A - Stitching device for cardboard or mechanical weaving paper : en fr
  • USD102910S - Design fob a bottle : en
  • US2069003A - Electrical apparatus : en
  • USD102961S - Design for a faceplate fob a coin : en
  • CA363748A - Cylinder press movement : en fr
  • US2068978A - Powder distributor : en
  • USD102936S - Design for a lock fob bicycles or : en
  • AT148503B - Closure for metal vessels. : de en
  • CA363684A - Web film smoothing method : en fr
  • US2068905A - Process for preparing ether acids : en
  • US2069044A - Centralized traffic control system for railroads : en
  • US2069064A - Syrup : en
  • US2068822A - Point locating device : en
  • US2068909A - Transparent mounting corner : en
  • AT148426B - Flexible, tubular conductor. : de en
  • US2069020A - Knitted cap : en
  • US2069110A - Traveling sign : en
  • USD102963S - Design for a duplicating machine side : en
  • US2069133A - Valve and guide bushing ejector : en
  • USD102867S - Design for a flashlight head shell : en
  • DK52600C - Apparatus for the production of artificial respiration. : da en
  • GB460399A - Improvements in valves for vessels containing gas under pressure : en
  • DE641241C - Process for the mass production of centrifugally cast bodies : de en
  • AU100103B2 - Improvements in or relating to superheterodyne receiving apparatus with automatic correction ofthe tuning : en
  • US2068708A - Fuse for projectiles : en
  • CH188927A - Anchor escapement. : en fr
  • CH188943A - Tobacco pipe head. : de en
  • SU50219A1 - Gasket O-Ring : en ru
  • CH188985A - Process for the preparation of a keto-cyclopentano-dimethyl-tetradecahydrophenanthrol. : de en
  • FR807975A - External electrode device for luminescent tubes : en fr
  • GB460260A - Improvements in speed indicator and tension regulator for warp knitting machines : en
  • SU50243A1 - Refrigeration unit : en ru
  • AT148473B - Textile auxiliaries. : de en
  • FR808068A - Portable device allowing the rapid crossing of streams, without noise and without leaving traces, by soldiers in small groups : en fr
  • GB460461A - Improvements relating to brackets for observation mirrors for vehicles : en
  • CH188939A - Device on dry shavers and hair clippers for resilient pressing of the movable shaving comb against the fixed shaving comb. : de en
  • US2068761A - Process and apparatus for producing variegated roofing : en
  • PL24256B1 - Bearing for instruments powered by compressed air. : en pl
  • US2069164A - Rotary kiln : en
  • AT148415B - Call facility for telegraph receivers. : de en
  • CH188843A - Adjustable wedge cushion that can be used as a back support. : de en
  • GB460303A - Improvements relating to atmospheric gas or vapour burners : en
  • GB460556A - An improved slip for the production of coatings on ceramic ware : en
  • AT148543B - Electrolytic capacitor. : de en
  • CH188853A - Yarn for knitting and weaving, method of manufacturing this yarn and machine for implementing said method. : en fr
  • DE641410C - Speed control for conveyor machine drives : de en
  • GB460546A - Improved method of jointing plywood and boarding : en
  • US2068884A - Broaching machine : en
  • AT148496B - Driving and braking device for sleds and other vehicles. : de en
  • CH188994A - Electric throttle device for power lines over which high-frequency communications are conducted. : de en
  • BE419165A - Inhalation device : en fr
  • CA363657A - Chromium plating method : en fr
  • US2069063A - Method of finishing composite paper sheet material : en
  • SU50211A1 - The method of manufacturing plastics : en ru
  • US2068834A - Oxidized "hydroformed solvent" : en
  • USD102882S - Design for a combination desk set : en
  • CA363769A - Printing plate : en fr
  • CH189056A - Means for monitoring one set with respect to another set. : de en
  • SU50209A1 - Cleaner for the recovery of waste ground molding sand : en ru
  • US2068720A - Packing for sealing high pressure fluids : en
  • CH188855A - Spindle switching device on Kötzerspulmaschinen. : de en
  • DE641280C - Method for clearing out elongated heat accumulators, especially those for coke ovens : de en
  • US2068993A - Cutter chain and cutter bar : en
  • US2069071A - Brake drum : en
  • SU50214A1 - Instrument for measuring pressurized fluid : en ru
  • GB460317A - Improved means for covering the engine starting handle hole in the body, radiator shell, or other part of a motor vehicle : en
  • GB460544A - Improvements in or relating to automatic route-progress and like indicators on vehicles : en
  • FR808042A - Advanced bicycle mudguards : en fr
  • FR808168A - Improvements to cathode ray oscillographs : en fr
  • US2068840A - Milling machine : en
  • FR807924A - Recuperator-economizer for electric lamps : en fr
  • FR808001A - Group of monanode ionic valves : en fr
  • FR808013A - Set of double buttons for <special adaptation> from the false collar to the men's shirt : en fr
  • DE641359C - Featherless truss : de en
  • GB460416A - Improvements in and relating to gear cutting machines : en
  • GB460453A - Improvements relating to control mechanism for variable throw hydraulic pumps : en
  • USD102942S - Design for a bottle : en
  • GB460216A - Improvements in and connected with motor car bodies : en
  • SU50273A1 - Reinforced concrete nest for wooden poles : en ru
  • US2068733A - Slicing machine : en
  • AT148461B - Process for comminuting calcium cyanamide. : de en
  • CH188830A - Articulated boiler for burning tar-forming fuels. : de en
  • AT148475B - Process for the preparation of quaternary amino compounds. : de en
  • PL24350B1 - The glider is equipped with an auxiliary power unit in the form of an internal combustion engine, driving the smige, in order to enable the glider to take off from the ground with its own power. : en pl
  • SU50259A1 - Electronic lamp : en ru
  • FR808148A - Flow indicator : en fr
  • PL24288B1 - The pressure device is suitable for the extraction devices for tractors and scurlers. : en pl
  • SU50266A1 - Brown coating method : en ru
  • US2068818A - Composition for coating purposes containing a rubber derivative : en
  • CH188908A - Skate. : en fr
  • CH188956A - Method and device for preventing sludge deposits in the boiler feed water in a preheater. : de en
  • DE641214C - Device for conveying concrete or the like in pipelines : de en
  • CH189059A - Process for the preparation of purified gonadal hormone preparations. : de en
  • FR807943A - Acoustic device : en fr
  • GB460523A - Improvements in or relating to the production of stiffened fabrics and articles made thereof : en
  • CA363701A - Tobacco container : en fr
  • FR808036A - Safety device for motor vehicles : en fr
  • BE419534A - : en fr
  • US2068718A - Twin sprinkler : en
  • US2068944A - Electric circuit switch controlling device : en
  • US2068811A - Riding boot : en
  • BE419020A - : en
  • CH189016A - Vehicle wheel with at least one removable rim. : de en
  • CA363753A - Sewer cleaning apparatus : en fr
  • US2069112A - Device for treating the tooth-root membrane : en
  • USD102974S - Design for : en
  • PL24346B1 - Device for indicating e.g. height. : en pl
  • US2068872A - Purifying of alcohols by contact catalysts : en
  • SU50277A1 - Hydraulic Wagon Scales : en ru
  • CA11300S - Candle lamp : en
  • CA363676A - Nitrogen and hydrogen mixture : en fr
  • USD102946S - Design fob a beaded handbag fabric : en
  • CH189037A - Process for the preparation of a water-soluble monoazo dye. : de en
  • DE636397C - Device for the extraction of sulphates and sulfur by explosion-proof pressure decomposition of solutions : de en
  • PL24347B1 - A method for producing liquid fuel, and an apparatus for carrying out the method. : en pl
  • CH188903A - Winding device for endless film. : de en
  • CA363693A - Container : en fr
  • DE641004C - Adhesives : de en
  • FR808183A - High pressure backpack sprayer : en fr
  • DE641277C - Process for dyeing organic cellulose waste, in particular cellulose acetate : de en
  • GB460422A - Improvements in or relating to driving devices for motor knitting machines : en
  • GB460457A - Improvements in or relating to burners for heavy oil fuel : en
  • DE641204C - Apparatus for developing photographic paper with ammonia gas : de en
  • GB460475A - Improvements in or relating to thermionic electrodes adapted to be heated by an electric discharge : en
  • GB460477A - Improvements in or relating to cathode ray tubes and means for operating the same : en
  • CH189002A - Device for the electrical drive of conveyor systems composed of individual conveyor links, in which each conveyor link is driven separately. : de en
  • FR808177A - Switchgear intended for supplying closed-circuit steam generators with deaeration at the condensers : en fr
  • DE641301C - Loose coupling for vibrating screen drives : de en
  • USD102919S - Design for a clock case : en
  • CA363671A - Knitting machine cam block : en fr
  • GB460351A - Plant for the concentration of salt water : en
  • GR6260B - AIR CAP - WATER HOUSES FOR BOTTLES, CELLS AND CONTAINERS. : el en
  • DE641325C - Device for damping unwanted vibrations of rotating blades for screwdrivers, especially gyrocopter : de en
  • FR807967A - Process and material for dehydration and melting : en fr
  • GB460666A - Improvements in or relating to vehicle lamps, searchlights or the like for the penetration of fog : en
  • AT148544B - Capacitor winding and process for its manufacture. : de en
  • CA363697A - Celluloid article manufacture : en fr
  • US2068956A - Brake : en
  • CH188907A - Rock hook for climbing. : de en
  • FR808109A - Cooling process with indirect vaporization of an auxiliary refrigerant : en fr
  • GB460414A - Method of and means for feeding water to steam generators : en
  • US2068743A - Table slide : en
  • US2069040A - Temperature regulating valve : en
  • FR808024A - Process for the preparation of lower aliphatic primary amino alcohols from the corresponding halogenated compounds : en fr
  • GB460460A - An improved display cabinet, carton or container : en
  • US2068816A - Oil spray purge mechanism : en
  • BE419158A - Improvements in process and apparatus for processing dried cassava to obtain starch : en fr
  • CH188916A - Piston fluid meter. : de en
  • DE641412C - Measuring arrangement for drilling machines : de en
  • GR6266B - AUTOMATIC GIFT LARGE. : el en
  • FR808060A - Process for filling cavities or curvatures formed by dents, gashes, cracks or the like : en fr
  • USD102947S - Design for a signal lamp faceplate : en
  • CA363738A - Shoe plate : en fr
  • DE641259C - Voltage regulation of motors that are fed from an alternating current network via step transformers and grid-controlled rectifiers : de en
  • FR807930A - Process for preparing carbon black : en fr
  • US2068744A - Piezo electrical pressure measuring device : en
  • GB460561A - Manufacture of metalliferous azo-dyestuffs : en
  • US2068923A - Method of and apparatus for annealing glassware : en
  • DE641369C - Process for the removal of high-phenol-containing gas water in generator systems : de en
  • AT148405B - Ignition coil. : de en
  • PL24338B1 - The method of production by means of cataphoresis of the coating on the surface of objects, in particular on the surface of electrical devices. : en pl
  • PL24356B1 - A method of producing ascorbic acids. : en pl
  • CA363629A - Greyhound racing apparatus : en fr
  • CH188851A - Device for the production of brushes and paint brushes, in particular ceiling brushes. : de en
  • US2068896A - Amalgamator : en
  • US2068960A - Automobile luggage carrier : en
  • FR808059A - Internal combustion engine operating on the two-stroke cycle : en fr
  • GB460478A - Process and apparatus for regenerating washing oil which has been used in the production of benzene from coal distillation gases : en
  • USPP227P - Gladiolus : en
  • US2069055A - Sole plate for shoe presses : en
  • US2069149A - Refrigerator : en
  • PL24292B3 - Scope sight for machine guns and small caliber cannons. : en pl
  • SU50223A1 - Attachment to the punch press for feeding nuts : en ru
  • US2068671A - Sewing machine : en
  • US2068868A - Thermal treatment of carbonaceous substances : en
  • US2068786A - Athletic insole : en
  • US2069144A - Curtain rod holder : en
  • SU50295A1 - Continuous vacuum apparatus for treating a preserved product with devices for filling cans with gas or syrup : en ru
  • US2068800A - Indol sulphonic acids : en
  • PL24333B3 - Electric lamp, with a closed cover. : en pl
  • CH188842A - Seating furniture with a spring-loaded frame. : de en
  • CA363694A - Ring welt : en fr
  • CA363707A - Tag fastener : en fr
  • DE641177C - Variable capacitor made of inorganic, especially ceramic, insulating material with low dielectric losses, plate-shaped design : de en
  • GB460497A - Improvements in or relating to means for drawing off liquids from barrels or other vessels : en
  • FR808149A - Color photography on multi-layered lenticular raster film : en fr
  • GB460451A - Improvements in and relating to hoisting or lowering apparatus : en
  • GB460574A - Improvements relating to the steering mechanism of toy vehicles : en
  • FR808129A - Safety circuit breaker for excessively intense currents : en fr
  • DK52625C - Apparatus for the detection of smoke for fire alarm purposes. : da en
  • FR808090A - Improvements to pneumatic spraying devices, in particular to those for spraying paint : en fr
  • CA363692A - Container : en fr
  • CH188923A - Method and device for the presentation of projection images in three dimensions. : de en
  • GB460502A - Improvements in or relating to automatic gramophone mechanisms : en
  • CH188859A - Wide washing machine for the treatment of textile products in web form. : de en
  • AT148545B - Capacitor. : de en
  • CH188835A - Device preventing overheating of the oven-grill in an electric stove. : en fr
  • CA363698A - Rubber preservation : en fr
  • USD102871S - Design for a toy aeroplane : en
  • SU50190A1 - Pneumatic valve : en ru
  • US2069018A - Dispensing support : en
  • GB460237A - Method of fabricating an aeronautical propeller blade and the like : en
  • DE641239C - Drive device for the working members of knitting machines involved in the stitch formation process : de en
  • DE641427C - Protective cover for rotating tools in woodworking machines : de en
  • FR807938A - Process for making porous molded articles : en fr
  • GB460494A - Improvements in incinerating furnaces : en
  • US2068787A - Carburetor for internal combustion engines assuming various angles : en
  • AT148530B - Stocking. : de en
  • GB460495A - Improvements in or relating to weaving heddles : en
  • FR808052A - Electrical resistance with negative temperature coefficient and method of manufacturing this resistance : en fr
  • US2069009A - Closure for collapsible tubes : en
  • USD102951S - Design for a refrigerator cabinet : en
  • USD102899S - Design for a shoe : en
  • US2069119A - Rubber covered suction roll : en
  • CA363766A - Wringer : en fr
  • CA363682A - Iron-chromium alloy : en fr
  • GB460500A - Improvements relating to automatic stop mechanisms for magazine gramophones : en
  • AT148437B - Time switch. : de en
  • CH188931A - Timepiece. : en fr
  • CH188984A - Process for the preparation of allo-pregnanolone. : de en
  • CH188992A - Circuit arrangement for teleprinter systems. : de en
  • SU50245A1 - Device for transmitting vision : en ru
  • US2068903A - Folding table leg : en
  • US2069105A - Air valve : en
  • USD102891S - Design for a hebrew alphabet : en
  • BE418834A - : en
  • CA363659A - Display carton : en fr
  • CH188890A - Process for the production of an indigoid vat dye. : de en
  • CH188996A - Electrical system with at least one space discharge device. : de en
  • FR808179A - New process for ridding metal parts of their surface oxide film and parts treated by this process : en fr
  • GR6269B - ELECTRIC SEALS IMPRESSED BY INFLARMATED METAL HEATED BY ELECTRICITY. : el en
  • FR808084A - Elastic tube closure : en fr
  • GB460539A - Improvements in bodies for automobiles : en
  • CH188838A - Inclined hearth stove oven. : en fr
  • FR808117A - Process for obtaining contrasts by photochemical means, particularly applicable to the reproduction of documents : en fr
  • CA363741A - Chain for bark peeling devices : en fr
  • FR807999A - Seat for w device. vs. : en fr
  • FR808065A - Device for the alternating control of two shafts, in particular for the development of photographic negatives on film : en fr
  • FR808154A - Pneumatic tire : en fr
  • US2068752A - Main operated voltage amplifier : en
  • CH188955A - Method of accelerating internal combustion engines from idle. : de en
  • CH188970A - Magnetic blow-off circuit breaker. : en fr
  • US2068902A - Support for pipes, handrails, or other like objects : en
  • GB460454A - Improvements in or relating to speed indicators for road vehicles : en
  • FR808039A - Collector device for showers : en fr
  • FR808155A - Rocket comprising a device with centrifugal jaws : en fr
  • US2069007A - Device for automatically changing transmission ratio : en
  • US2068880A - Preservation of textiles, leather, and wood : en
  • US2068769A - Rectifier for wireless television reception : en
  • FR807915A - Improvements in the manufacture of knitted articles : en fr
  • GB460490A - Improvements in or relating to directional radio transmitting and receiving installations : en
  • FR807995A - Improvements made to agricultural machinery, in particular to tedding machines : en fr
  • FR808105A - Device intended to pass the bottles from a conveyor (washing machine, for example) to another conveyor by carrying out their complete inversion : en fr
  • FR808128A - Desensitizing solution : en fr
  • GB460319A - Improvements in or relating to handles for use by passengers in vehicles : en
  • US2068728A - Soldering iron : en
  • GB460332A - Improvements in air screw propellers : en
  • US2068661A - Feeding mechanism for rock drills : en
  • FR807941A - Portable domestic gasifier : en fr
  • CH188815A - Egg laying box. : de en
  • USRE20254E - h robertson : en
  • FR808097A - Method of amplifying the light intensity of images : en fr
  • FR808057A - Process for the purification of synthetic camphor : en fr
  • GB460251A - Improvements in stringed musical instruments : en
  • CA363668A - Vehicle bumper : en fr
  • CH189003A - Mobile container with automatic emptying for lifting equipment. : de en
  • FR808135A - Mower head : en fr
  • US2068958A - Brake : en
  • US2068979A - Method of preventing corrosion in oil stills : en
  • CH188930A - Clock. : en fr
  • CA363732A - Conductor insulating process : en fr
  • FR808056A - Air conditioning and refrigeration unit : en fr
  • AT148507B - Transfer elevator. : de en
  • AU181036A - Bidet attachment for water closets : en
  • CA363726A - Spray oil emulsifier : en fr
  • CH188958A - Device for the automatic operation of refrigeration systems. : de en
  • US2068824A - Quaternary heterocyclic acid : en
  • GB460322A - Improvements in or connected with conveyors of the belt type : en
  • CH189029A - Process for the preparation of 3-methyl-2-aminodiphenylsulfone. : de en
  • CH188951A - Liquid ring impeller pump for gaseous media. : de en
  • USD102873S - Design for a buckle : en
  • PL24330B1 - High-pressure internal combustion engine with liquid fuel injection into a separate combustion chamber, connected to the working cylinder by a duct. : en pl
  • FR808044A - Chassis for vehicles moving mainly in one direction : en fr
  • GB460345A - Improvements relating to upper cylinder lubricants : en
  • GB460513A - Improvements in or relating to blades for airscrews and the like : en
  • US2069171A - Relay : en
  • US2068798A - Glass building block : en
  • US2068873A - Pyrophoric lighter : en
  • US2069139A - Grain cleaner, separator, and the like : en
  • US2069155A - Knitting machine : en
  • USD102966S - Design fob a glove : en
  • PL24336B1 - A method of producing wall and wall covering consisting of glass plates cut into small tiles. : en pl
  • US2068948A - Clutch control : en
  • CA363713A - Antiskid unit : en fr
  • CH188906A - Fountain pen holder with interchangeable ink capsule. : en fr
  • DE641302C - Feeding and shredding device between the filling hull and the lignite briquette press : de en
  • GB460235A - Improvements in or relating to temperature indicators and to temperature operated electric switches : en
  • GB460430A - Improvements in matrix magazines for typographical composing machines : en
  • CA363679A - Microphone : en fr
  • US2069014A - Lady's corselet and like underwear : en
  • US2069160A - Regulated voltage system for detecting suspended matter in fluids : en
  • CH188864A - Equipment for laundry cleaning and ironing. : de en
  • US2069027A - Method of manufacturing cup pastry : en
  • US2069056A - Stuffing box packing : en
  • PL24272B1 - A way of enhancing the effectiveness of plant insecticides. : en pl
  • SU50253A1 - Apparatus for measuring the relative phase shift between two voltages of the same frequency : en ru
  • PL24271B1 - Zelazobetoneva chest for coffins. : en pl
  • CH188895A - Process for polymerizing vinyl compounds. : de en
  • CH189046A - Process for the preparation of a monoazo dye. : de en
  • US2068700A - Calling device : en
  • CH188998A - Handbag with clasp and strap-like handle. : de en
  • DK52627C - Drum for Drying, Heating or Cooling. : da en
  • FR808118A - Method for supplying hot gases containing tars from generators without loss : en fr
  • GB460564A - Improvements relating to water meters : en
  • PL24290B1 - The method of obtaining artificial silk and similar products from cellulose esters. : en pl
  • DE641436C - Joint compensating gears, in particular for motor vehicles : de en
  • GB460222A - Improvements in or relating to methods of modulating carrier waves, particularly for television and like purposes : en
  • CA363718A - Dispensing receptacle : en fr
  • CA363721A - Rubber vulcanization : en fr
  • CH188848A - Collapsible table. : de en
  • FR808096A - Sintered hard alloys : en fr
  • DE641231C - Suction gas generator, especially for wood, with a downward draft : de en
  • GB460226A - Improvements in the production of abrasive grain and rubber mixes for the manufacture of bonded abrasive articles : en
  • GB460326A - Improvements in or relating to tubular paper holders for wound textile yarns or threads : en
  • GB460548A - Improvements in and relating to electrolytic capacitance devices : en
  • GB460400A - Improvements in ball and socket joints for flexible pipe lines : en
  • FR807932A - Multistage centrifugal pump or compressor : en fr
  • GB460412A - Improvements in or relating to locking devices for windows : en
  • GB460425A - Improvements in gudgeon pin bearings : en
  • DE641308C - Process for making records for immediate recording and playback : de en
  • AT148498B - Mask for gas detectors. : de en
  • AT148521B - Device for charging a capacitor. : de en
  • GB460299A - A new or improved mould for casting stereotype plates : en
  • CH188850A - Brush. : en fr
  • DK52596C - Biscuit shape. : da en
  • GB460515A - Improvements relating to insulated electric cable conductors : en
  • DE641223C - Encapsulated hinge : de en
  • USD102902S - Design fob a shoe : en
  • SU50262A1 - Device for activated cathodes : en ru
  • FR808131A - Carburetor for internal combustion engines : en fr
  • FR808189A - Signal translator : en fr
  • FR808027A - Improvements to clutch and power transmission devices : en fr
  • AT148424B - Measuring device for low-voltage transmission systems. : de en
  • FR808147A - Process for impregnating windings and parts of windings of electrical machines : en fr
  • GB460653A - Improvements relating to photographic printing : en
  • GR6262B - THERMAL INSULATION SYSTEM OF THERMAL PIPES AND STEAM BOILERS FOR THE PURPOSE OF FUEL ECONOMY. : el en
  • SU49623A1 - The method of processing fiery soot : en ru
  • CA363719A - Draft and buffing gear : en fr
  • CH188969A - Circuit breaker with an arc-extinguishing medium, especially for high voltages, which is coupled together with a disconnector. : de en
  • DK52601C - Chest of drawers. : da en
  • DE641408C - Single-phase or multi-phase ironless inductor with a coil system formed from one or more ring-shaped or cylindrical winding layers, fastened between components : de en
  • SU50267A1 - Skip filter : en ru
  • GB460578A - Improvements in or relating to emulsions : en
  • SU50234A1 - The method of differential flotation of ores : en ru
  • AT148516B - Multiple launcher. : de en
  • SU50239A1 - Apparatus for absorption and distillation : en ru
  • DE641337C - Rectangular single conductor of constant height for induction ovens : de en
  • AT148440B - Cable drum for transporting and laying portable electrical cables. : de en
  • CA363733A - Vertical retort : en fr
  • GB460436A - Improvements in or relating to electric propulsion systems and methods of operating same : en
  • GB460325A - Improvements in and relating to belt gearing : en
  • CH188834A - Sliding or tilting oven door at will, particularly applicable to range ovens. : en fr
  • CH189043A - Process for the preparation of a monoazo dye. : de en
  • DE641433C - Method and device for dennicotinizing tobacco : de en
  • DK52607C - Sliding window. : da en
  • BE418859A - Operating device by double wire of an elastic switch without hook, with locking inside the device : en fr
  • DE641345C - Process for the manufacture of slippers with rubber heel caps : de en
  • GR6259B - WATER SUPPLIER AND DIFFERENT WITH ALL LIQUIDS OF ALL NATURAL SUBSTANCES. : el en
  • US2068973A - Viscosity-responsive device : en
  • US2069158A - Disazo-dyestuffs insoluble in water and fiber dyed therewith : en
  • CH189045A - Process for the preparation of a monoazo dye. : de en
  • DE641424C - Box saw tang for gang saws : de en
  • US2069170A - Refining mineral lubricating oils : en
  • US2069184A - Computing apparatus : en
  • CH188816A - Method for protecting fur, feathers, hair, fibrous materials and other goods against pests. : de en
  • SU50205A1 - High voltage electrostatic generator : en ru
  • GB460484A - Table mountings for calculating machines and other office machines : en
  • CH189031A - Process for the preparation of 2-methyl-amino-1-naphthol. : de en
  • DE636841C - Fluid brake, especially for lift trucks : de en
  • DE641422C - Hand setting ship for line casting machines for setting matrices from different sets of matrices, the characters of which are not aligned with a common base line : de en
  • GB460230A - Safety glass : en
  • SU49838A1 - Modulator of the magnetron generator : en ru
  • US2069087A - Apparatus for the manufacture of insulated wire : en
  • AT148492B - Collapsible bicycle frame. : de en
  • PL24261B1 - A compact, equipped with a light bulb. : en pl
  • PL24354B1 - The method of carrying out the reaction between ammonium nitrate and potassium chloride. : en pl
  • GB460281A - Improvements in or relating to the production of potassium sulphate : en
  • US2068974A - Water-resistant molding mixture and method of making the same : en
  • SU50193A1 - Rotary chisel : en ru
  • FR808165A - Device for adjusting the oil flow in liquid fuel burners : en fr
  • GB460452A - Improvements in light measuring devices : en
  • US2069145A - Liquid vaporizing and air humidifying apparatus : en
  • US2068916A - Ventilator : en
  • AT148513B - Adjustable frame. : de en
  • SU50208A1 - The method of obtaining artificial hydrogen sulfide water : en ru
  • SU50281A1 - Device for performing, by means of one common pedal, accelerator and brake pedal functions : en ru
  • US2068645A - Crawler wheel : en
  • US2068796A - Condensation product of low sulphonation applicable as a size : en
  • USD102965S - Design fob a glove : en
  • AT148471B - Device for pasteurizing liquids, in particular sweet must. : de en
  • GB460379A - Improvements relating to fuel oil and motor spirit : en
  • USD102948S - Design for a meter casing : en
  • FR807945A - Automatic voltage regulator of an electrical network : en fr
  • FR808067A - Improvement in heat exchangers : en fr
  • AT148410B - Raw connection. : de en
  • AT148470B - Process for the production of etchable, green-blue dyeings and prints on cellulose esters and ethers. : de en
  • CH188936A - Screw clamp. : de en
  • PL24314B1 - A device that secures the stopper for bottles or tubes against loss. : en pl
  • US2069017A - Manifold and valve structure : en
  • US2069030A - Rail fissure detector : en
  • FR808094A - Burner for storm lantern : en fr
  • US2068774A - Aircraft : en
  • CA363670A - Gas generator : en fr
  • DE641319C - Printing device for registering machines, especially cash registers and accounting machines : de en
  • DE641355C - Multi-sash window with side swivel sashes and a middle sash that is in the same plane in the closed position : de en
  • DE641387C - Parallel drawing device : de en
  • GB460357A - Improvements in elastic fluid turbines of the double rotary type : en
  • USD102958S - Design foe a housing for a signal : en
  • US2069180A - Control apparatus for automatic phonographs : en
  • US2068686A - Apparatus for silencing the exhaust of internal combustion engines : en
  • SU50260A1 - Magnetron : en ru
  • FR808029A - Process for the production of a series of colored pigments obtained from derivatives of titanic acid and resistant to the action of light, weathering, acids and alkalis, whether or not concentrated : en fr
  • DE641342C - Device for loosening cohesive tobacco leaves : de en
  • GB460337A - Differential feed device for carrier arm sewing machines : en
  • DE641377C - Clamping rail for loose-leaf binders with a cover strip for the bent stringers : de en
  • DK52599C - Branch for Completion of Electrical Installations at Lamp Stations in Ceiling Surfaces. : da en
  • US2068848A - Method of forming diamondiferous abrasive compositions : en
  • US2068854A - Treating oxygenated organic compounds : en
  • FR808003A - Process for preparing azo dyes : en fr
  • DE641256C - Zone windbreaker grate : de en
  • US2069054A - Warning device : en
  • FR808173A - Automatic traffic control luminous device : en fr
  • DE641379C - Clamping device for tubular moldings on the forme cylinder in gravure printing machines : de en
  • DE641332C - Protection against explosion transmission : de en
  • FR807972A - Socket for attaching a handle to the broom : en fr
  • FR808200A - Pants with elastic waistband : en fr
  • US2068702A - Pavement constructing : en
  • US2068951A - Fuel supply system : en
  • US2068664A - Vehicle : en
  • US2068767A - Process and apparatus for surfacing roofing : en
  • DE641394C - Process for the production of regulatory magnesium : de en
  • US2068695A - Remote control system for oil cracking plants : en
  • GB460233A - Improvements relating to soldering : en
  • DE641299C - Process for the production of cinema films in natural colors from an original using a film with a microscopic irregular three-color grid : de en
  • DE641265C - Accordion : de en
  • DE641334C - In the ratio 14: 12: 8: 4 pole-changing 12 n-pole three-phase winding : de en
  • USD102876S - Design for a bowl or similar article : en
  • GB460538A - Improvements in mail chutes : en
  • DE641283C - Process for producing lump fuel from fine coal : de en
  • FR807931A - Improvements relating to engine cradles or supports : en fr
  • CH188876A - Process for the manufacture of products containing diffusible gas. : de en
  • FR807985A - Tanning agents and process for preparing them : en fr
  • CA363699A - Electrical insulator : en fr
  • CH188888A - Process for the preparation of an acidic chromating dye of the anthraquinone series. : de en
  • AT148505B - Boxes and similar packaging with overlapping flaps. : de en
  • FR808121A - Reels for fishing rods : en fr
  • CH188909A - Skis with metal edges. : de en
  • US2068828A - Means for cultivating turf and soil : en
  • US2068876A - Spring expansion bend : en
  • US2068673A - Circular loom : en
  • PL24287B1 - A method for obtaining zinc metal from zinc ores (roasted blend, carbonates and zinc silicates or mixtures thereof) and a furnace for carrying out this method. : en pl
  • US2068926A - Method of making artificial lumber : en
  • CA363688A - Dispensing mechanism : en fr
  • US2069012A - Vehicle jack : en
  • SU49553A1 - Method of making mosaic steps, plates and the like : en ru
  • SU50202A1 - Method for processing of trap concentrate for isolating nepheline with simultaneous enrichment with rare earths : en ru
  • US2068750A - Internal combustion engine : en
  • US2068805A - Cover glass : en
  • US2069109A - Needle bar : en
  • USD102892S - Design for a shoe : en
  • US2068965A - Oil field tank equipment : en
  • DE641317C - Electrical resistance body in curve form : de en
  • FR808008A - Rubber sandal : en fr
  • AT148450B - Device for sharpening scissors. : de en
  • AU100105B2 - Improvements in electric discharge devices : en
  • DE641331C - Container that can be set up outdoors for storing easily evaporating liquids : de en
  • AU15636A - Method of accelerating the hardening of mortars and concretes : en
  • FR807988A - Ice cream vending machine : en fr
  • US2069106A - Game : en
  • US2069188A - Continuous came glazing : en
  • DE641285C - Process for the preparation of water-soluble heterocyclic mercury compounds : de en
  • DE641420C - Field pipe for water tube boiler : de en
  • US2068658A - Inductance coil core : en
  • SU50199A1 - Movable crawler bulk machine for feeding coal from the bottom to the bypass conveyor device : en ru
  • PL24255B1 - A way to improve the washing fastness of colors. : en pl
  • FR808102A - Gas preparation device : en fr
  • GB460268A - Transportable installations for mixing and delivering grout and the like : en
  • US2068995A - Coating and method of protecting surfaces against corrosion : en
  • GB460305A - Improvements in or relating to radio receivers : en
  • AT148404B - Stepless change gear. : de en
  • CA363664A - Tetra alkyl lead production : en fr
  • DE641386C - Anti-skid device for motor vehicle tires : de en
  • FR807992A - Double row ball bearing : en fr
  • CA363764A - Envelope and folder : en fr
  • AT148497B - Device for the intermittent closing and opening of a circuit, in particular flashing switches for electrical railway signals. : de en
  • PL24247B1 - The method of aluminum soldering. : en pl
  • SU50241A1 - The method of producing cyanines : en ru
  • CA363760A - Post structure : en fr
  • GB460221A - Improvements in or relating to radio receivers : en
  • GB460445A - Improvements in or relating to cathode-ray tubes and the like : en
  • BE418943A - : en fr
  • CH188972A - Temperature controller. : de en
  • SU50230A1 - Cartridge Hydrox : en ru
  • US2068946A - Attachment for footwear : en
  • US2068966A - Metallic paint : en
  • US2069000A - Telegraph system : en
  • US2069122A - Hydraulic reciprocating motion device : en
  • PL24253B1 - Steering device of an adjustable axle for a railway vehicle. : en pl
  • CH188912A - Swing convertible into a carriage. : de en
  • AT148455B - Synchronous motor timer with auxiliary gear. : de en
  • CH189054A - Anti-skid pad of metal for skis. : de en
  • CA363704A - Cover glass : en fr
  • FR808144A - A method of manufacturing sheet materials which are permeable to air and consist mainly or partially of rubber : en fr
  • CH189008A - Motor vehicle. : de en
  • CH188893A - Process for the production of low viscosity nitrocellulose from film waste. : de en
  • CH189000A - Driver's license pocket. : de en
  • US2068716A - Transmission control : en
  • DE641227C - Self-indicating electric target : de en
  • US2069062A - Gas burner : en
  • US2068985A - Cutter mechanism : en
  • AT148463B - Process for the production of pasty or ready-to-paint paints. : de en
  • AT148510B - Device for the preservation of liquids, especially water, using carbonated snow. : de en
  • CH188840A - Double bed. : de en
  • CH189062A - Process for the preparation of a readily soluble salt of a 9-aminoacridine derivative. : de en
  • FR807925A - Household appliance for washing tiles, walls, cars, etc. : en fr
  • FR808124A - Process for the extraction or regular distribution of floury or granular materials contained in storage containers, silos, unloaders, etc. : en fr
  • CH188854A - Method and machine for the production of multiple threads. : de en
  • DE641401C - Device for dust-free shaking of pugs and the like like : de en
  • GB460295A - Improvements in or relating to jewellery : en
  • CH188878A - Process for the preparation of a detergent containing active oxygen. : de en
  • CH188918A - Temperature-sensitive device with a device for securing the same. : de en
  • US2068935A - Rubber compounding : en
  • US2068962A - Control mechanism : en
  • US2069115A - Label folding machine : en
  • CH188911A - Mountain and valley railway. : de en
  • SU50246A1 - Apparatus for generating sawtooth current pulses : en ru
  • DE641268C - Process for the production of buttons, tokens and similarly shaped objects from urea-formaldehyde condensation products : de en
  • DE641271C - Process for the preparation of aromatically substituted pyridinium ethanols : de en
  • DE641320C - Device for driving the rotary tube on routes with a bobbin trolley going back and forth : de en
  • DK52608C - Silo of Concrete or similar Material. : da en
  • DK52602C - Container for Cleaning and Storage of Dentures. : da en
  • CA363651A - Fluid fuel burner : en fr
  • FR808077A - Improvements to internal combustion engines : en fr
  • SU50274A1 - A tool for communicating the work movements of the milling cutter in tenoning machines with one milling cutter : en ru
  • CH188870A - Metal nail for mountain boots. : en fr
  • FR808022A - Button clamping pliers for button sewing machines : en fr
  • FR808174A - Ignition coil-distributor assembly : en fr
  • GB460443A - Improvements in or relating to feed controls for sewing machines : en
  • CA363639A - Signalling system for vehicles : en fr
  • CH189010A - Windshield wiper system, in particular on a vehicle. : de en
  • DE641381C - Multimeter with blocking rectifier cells : de en
  • GR6257B - APPLIANCE USABLE FOR HOT WET AND DETERMINATION OF BOARDS FOR INSPIRATION (INHALIEREN) OR IN FRONT. : el en
  • GB460488A - Improvements in or relating to directional radio receivers : en
  • IE14125L - Drying crops : en
  • DE641313C - Automatic electrical controller switching device : de en
  • GB460238A - Improvements in or relating to systems for transmitting electrical signals : en
  • GB460498A - Improvements in and relating to the operation of internal combustion engines, and to the production of and supply of fuel thereto : en
  • AT148487B - Tobacco pipe. : de en
  • GB460315A - Improvements in or relating to coupling devices for use in connection with scaffolding and the like : en
  • US2069182A - Mineral concentration : en
  • USD102868S - Design for a flashlight base cap : en
  • FR807947A - Travel or lady's bag : en fr
  • DE641281C - Respiratory protection filter containing several filter layers arranged one behind the other : de en
  • FR807919A - Water-operated lamp : en fr
  • FR808106A - Improvements in the construction of aircraft wings : en fr
  • GB460505A - Improvements in or relating to roller mills : en
  • GB460521A - Improvements in or relating to seed grain disinfection : en
  • GB460387A - A new alkaloid of ergot : en
  • FR808061A - Table, ball or ball game : en fr
  • FR808082A - Improvements to electrode systems for electronic lamps : en fr
  • FR808093A - sheet pile elements : en fr
  • CH188913A - Outlined toy. : de en
  • FR807906A - Method for the distribution of a gas or vapor in a liquid and device for its application : en fr
  • GB460378A - Manufacture of polyazo-dyestuffs : en
  • CA363691A - Fuel vaporizer : en fr
  • AT148453B - Device for displaying the movement of moving objects, e.g. B. vehicles, stars or the like. : de en
  • PL24262B1 - W 4, 5-5 / 04 Zipper closure. : en pl
  • CH188937A - Process for treating a grinding wheel to increase its grinding efficiency and grinding wheel treated by this process. : de en
  • US2069088A - Refrigerator latch : en
  • CH188995A - Pulse transmitter device. : en fr
  • US2069185A - Manufacture of vanillin from waste sulphite pulp liquor : en
  • FR807934A - Extendable segment clutches improvements : en fr
  • GB460323A - Improvements in or relating to magnifying glasses : en
  • BE418802A - Small portable inhaler : en fr
  • USD102925S - Design for a coat : en
  • CH188932A - Material suitable for electrical contacts. : de en
  • DE641432C - Device for detecting leaks in beer pipes : de en
  • CH188997A - Television receiving arrangement with intermediate frequency amplifier. : de en
  • CH189032A - Process for the production of a new azo dye. : de en
  • AU100107B2 - Improvements in and relating tothe milk pipes of milking machines : en
  • CH188946A - Ring valve with links cut out concentrically from the valve plate. : de en
  • FR808122A - Spring loaded button : en fr
  • BE418950A - Electric appliance for preparing infusions of coffee, tea and other similar drinks : en fr
  • CH188852A - Box for preserves. : en it
  • CH189018A - Sledge lift with braking device. : de en
  • USD102957S - Design for a shovel blade : en
  • CA363644A - Filtering apparatus : en fr
  • USD102880S - Design fob a doll head ob similar : en
  • US2069023A - Variable ratio transmission : en
  • FR808054A - Cam mechanism : en fr
  • GB460525A - Improved method and means of glazing, applicable also to other sheeted coverings for buildings and garden structures : en
  • US2068980A - Slicing machine : en
  • US2069183A - Light colored highly halogenated naphthalene and process of producing same : en
  • CH189035A - Process for the preparation of a water-soluble monoazo dye. : de en
  • CA363648A - Plastic mass production : en fr
  • CH189065A - Arrangement for generating tilting vibrations. : de en
  • US2068685A - Transmission of sound currents : en
  • US2068877A - Preparation of titanium compounds : en
  • US2069033A - Paper bottle : en
  • US2068713A - Control device : en
  • US2069140A - Beet knife sharpening machine : en
  • PL24250B1 - A method of saccharifying cellulose and an apparatus for carrying out the method. : en pl
  • SU50286A1 - The method of obtaining non-soil enamel on iron products : en ru
  • SU50210A1 - Clamp for securing the elevator bucket on paired ropes : en ru
  • SU50291A1 - Oxylite cartridge for gas deflectors : en ru
  • US2068789A - Cutter bar and cutter chain : en
  • SU50252A1 - Directional receiving antenna : en ru
  • US2068955A - Refrigerating coil : en
  • US2069010A - Machine for cutting seed potatoes : en
  • US2069034A - Bunion and corn protector : en
  • US2068987A - Process of dissipating fog : en
  • US2069083A - Shoe with elastic portion : en
  • DE641291C - Mercury switch : de en
  • DE641307C - Glass tube processing machine : de en
  • FR807935A - Cellulose tube and its manufacturing process : en fr
  • DE641274C - Process for the production of lead chromate paints : de en
  • DE641327C - Conveyor slide for mining operations : de en
  • FR807905A - Hair trimming devices improvements : en fr
  • FR807994A - Printing plates and their manufacturing process : en fr
  • GB460542A - Improvements in and relating to scoring cards : en
  • DE641426C - Device for pressing the workpieces against the table of the planing machine : de en
  • GR6253B - PERFECTIONS IN AUTOMATIC TIME WHEELS. : el en
  • US2068970A - Rectifying system : en
  • AU100086B2 - Improved water heater : en
  • CH189038A - Process for the preparation of a water-soluble monoazo dye. : de en
  • US2068831A - Building structure : en
  • US2068864A - Diesel driven locomotive : en
  • GB460227A - Improvements in cooling apparatus employing solid gas-emanating refrigerants : en
  • AT148476B - Process for introducing aminoalkyl groups into the amino groups of amines. : de en
  • DE641404C - Device for pressing the slide onto the slide face in steam water traps with a vertically arranged slide face : de en
  • FR808195A - Sealing ring for engines : en fr
  • DE641166C - Multi-cylinder internal combustion engine with supply of charge air under pressure, in which the working cylinders are arranged in a star shape : de en
  • FR808011A - Sheet metal case or box for case hardening : en fr
  • US2068832A - Button : en
  • USD102935S - Design for a flashlight head shell : en
  • US2069117A - Process of preparing resinous condensation products containing urea or its derivatives : en
  • US2069161A - Gas transportation system : en
  • USD102903S - Design fob a shoe : en
  • GB460480A - Method of and apparatus for balancing rotating machine parts : en
  • USD102950S - Design fob a scabf : en
  • PL24355B1 - An insert for footwear, especially for low or flat feet. : en pl
  • US2068725A - Sorting machine : en
  • US2069006A - Presser foot for sewing machines : en
  • CA363710A - Ankle protector : en fr
  • CA363730A - Paper cup making apparatus : en fr
  • USD102898S - Design for a shoe : en
  • DE641400C - Process for the catalytic oxidation of hydrogen sulfide in fuel gases to sulfur dioxide or sulfur dioxide : de en
  • FR807955A - Further training in concrete pumps : en fr
  • FR808137A - Horizontal sliding window with several casements individually sliding and swiveling : en fr
  • GB460240A - Improvements in or relating to apparatus for casting materials which contract during solidification, especially polymerisable organic liquids : en
  • GB460246A - Improvements in or relating to supports or brackets for small electric generators : en
  • DE627720C - Device for removing rust, hot chips, old paint or the like. : de en
  • FR808041A - Reversible pneumatic or hydraulic rotary device : en fr
  • PL24248B1 - Electric bulb. : en pl
  • US2068827A - Illuminated chart : en
  • US2069103A - Barber pole : en
  • USD102889S - Design for a printed textile fabric : en
  • FR807910A - Automatic water feeder for steam boiler : en fr
  • GB460316A - Improvements relating to undercarriages for aircraft : en
  • USD102870S - Design for a toy aeroplane : en
  • GB460219A - Improvements in or relating to electric circuit-breakers : en
  • GB460506A - Improved package of ice cream or the like : en
  • SU50196A1 - Double column pipe : en ru
  • SU50287A1 - The method of obtaining a protective layer on the surface of iron, steel or zinc products : en ru
  • DE641218C - Process for the continuous release of pressurized gas from liquefied gases : de en
  • GB460541A - Improvements in or relating to filter devices for use in tobacco pipes : en
  • US2068640A - Apparatus for the recovery of values from aluminum : en
  • USD102869S - Design for a knife : en
  • US2068888A - Stanchion assembly : en
  • US2068775A - Discharge tube : en
  • DE641435C - Tank timber bundles : de en
  • US2068746A - Apparatus for case hardening glass : en
  • CA363773A - Game contrivance : en fr
  • CH188898A - Process for producing a firmly adhering, corrosion-preventing protective coating on light metals and light metal alloys. : de en
  • GB460241A - Improvements in and relating to the manufacture of thermoplastic resins : en
  • DK52619C - Drive unit for motor vehicles, in particular for those with pivoting axles. : da en
  • US2068814A - Fluid flow control valve : en
  • FR808030A - Elastic bracket features mounting parts molded into a single assembly : en fr
  • GB460413A - Improvements in or relating to printing presses : en
  • CH188948A - Anchoring device, especially for rope pulleys, pulling elements, etc. : de en
  • AT148501B - Wick burners for heating purposes. : de en
  • AT148533B - Arrangement for setting or regulating the degree of damping of negative resistances. : de en
  • AU192236A - Improvements in and relating tothe milk pipes of milking machines : en
  • CA363762A - Ventilator : en fr
  • CH189021A - Train composed of several vehicles. : de en
  • DK52604C - Magazine oven with ash emptying machine. : da en
  • GR6254B - USE OF CELLOIP FOR THE MANUFACTURE OF EPISWAYS. : el en
  • CA363634A - Motor-driven hammer : en fr
  • US2069080A - Arc lamp : en
  • US2068829A - Reducing telescopic view finder for photographic cameras : en
  • AT148432B - Device for the optional transmission of alternating currents of different frequencies. : de en
  • FR808157A - Image analyzer for photo-telegraphy, television, telecinematography, etc. : en fr
  • US2069077A - Two-speed capacitor motor : en
  • US2068680A - Portable door latch : en
  • US2068989A - Sulphonic acids of anthrapyrimidines : en
  • GB460707A - A method of, and apparatus for, producing composite x-ray pictures : en
  • DE641237C - Double-walled metal barrel : de en
  • GB460321A - Pistons : en
  • US2068747A - Internal combustion engine mounting : en
  • FR807946A - Automatic jack : en fr
  • GB460239A - Improvements in or relating to the production of cast synthetic resins : en
  • FR807916A - Improvements to audible warning devices : en fr
  • GB460296A - Improvements in the manufacture of roofing tiles : en
  • GB460468A - Improvements relating to sliding bolts : en
  • GB460705A - Improvements in or relating to arrangements for the reception of electrically transmitted impulses and signals : en
  • DE641249C - Cooling unit, consisting of a plurality of intermittently operating absorption cooling units : de en
  • US2069135A - Vapor or gaseous arc discharge lamp : en
  • GB460401A - Improvements in or relating to milking machine installations : en
  • CA363667A - Drawing making apparatus : en fr
  • FR807918A - Locking device on hinge for watertight shelter door : en fr
  • GB460244A - Improvements in gyroscopic compasses : en
  • SU50250A1 - Device for modulating electron beam in cathode tubes : en ru
  • US2068706A - Method of making shoes : en
  • US2068855A - Circular loom : en
  • US2068936A - Cylinder keyway guard : en
  • DE641015C - Device for determining the altitude of an aircraft whose speed in relation to the ground is known : de en
  • DE641060C - Circuit arrangement for telephone systems : de en
  • GB460446A - Improvements in or relating to coaxial conductor cables for electric transmission systems : en
  • GR6261B - WOOD STONES. : el en
  • SU50284A1 - Screw or screw : en ru
  • US2069108A - Tool attachment : en
  • US2068668A - Circuit controlling means : en
  • PL24301B1 - A device for holding in the correct position of the edges of the slit subject : en pl
  • DE641232C - Device for cooling centrifugally cast pipe shapes : de en
  • USD102914S - Design fob a drain board : en
  • US2068908A - Dispensing device : en
  • DE641257C - Rotatable beacon, especially for aviation : de en
  • GB460536A - Improvements in mail chutes : en
  • FR807939A - New vat dyes : en fr
  • FR807996A - Pneumatic wad for rifle cartridges : en fr
  • FR808085A - Advanced training in water closets : en fr
  • GB460465A - Improvements in or relating to motor vehicles : en
  • GB460519A - Improvements in or relating to counting devices : en
  • US2068666A - Cutter chain : en
  • US2068727A - Lubrication system : en
  • US2068981A - Automatic fountain waterer : en
  • US2068766A - Train control system for railroads : en
  • FR807993A - Garden sprinkler : en fr
  • GB460330A - Production of anhydrous boric acid : en
  • DE641246C - Method and device for regulating the flow of the liquid distributed from a main line to several parallel-connected branch pipelines each containing a throttle point and a regulator : de en
  • PL24291B1 - A device for opening and closing the doors of railcars, especially railcars, electrically operated and operated by compressed air. : en pl
  • SU50270A1 - Portable device for driving tannins into circulation : en ru
  • SU50301A1 - Artillery device for determining offset and waste corrections : en ru
  • GB460429A - Improvements in machines for securing together sheets of paper and the like by crimping : en
  • GB460479A - Fluorescent screen : en
  • GB460487A - Improvements in impression control devices for sheet printing machines : en
  • AT148407B - Rodless control of piston engines. : de en
  • PL24296B1 - Method for the separation of acetic acid anhydride. : en pl
  • PL24284B1 - Method for the production of therapeutically active amidines : en pl
  • CA363728A - Lubricating oil : en fr
  • SU50285A1 - Sealing ring for pistons and rods : en ru
  • US2069015A - Stretcher for garments : en
  • USD102887S - Design for a printed textile fabric : en
  • US2068738A - Beverage production : en
  • US2069091A - Material gathering and loading machine : en
  • US2068669A - Indicating mechanism : en
  • SU50194A1 - Method of making drill bits : en ru
  • US2068913A - Centrifugal quenching : en
  • CA363669A - Bumper clamp and guard : en fr
  • BE418835A - : en fr
  • DE641255C - Control transformer, especially for electric arc welding : de en
  • DE641416C - Process for the production of unwelded chains from links with two eyes perpendicular to each other : de en
  • GB460388A - Improvements in or relating to the casting of metal articles : en
  • CH188963A - Magnetic rotor. : de en
  • US2068861A - Cleaner for tubes and the like : en
  • US2069070A - Windshield cleaner motor : en
  • CH188871A - Shoe heel fitting. : en fr
  • CH188993A - Circuit arrangement for teleprinter systems. : de en
  • DE641294C - Method of making an alkaline photocell : de en
  • DK52622C - Apparatus for generating sound signals for vehicles, in particular motor vehicles. : da en
  • USD102907S - Design for an automatic sign : en
  • USD102977S - Design foe a hoisting apparatus cab : en
  • CA363695A - Photographic film : en fr
  • CA363681A - Veneering method : en fr
  • CA363672A - Plastic cord cutting apparatus : en fr
  • US2069095A - A hydroxy mercuri halo-fluoran : en
  • GB460277A - Improvements in or relating to boxes : en
  • DE641354C - Process for the production of post-dubbed picture sound films : de en
  • US2068996A - Shock absorber : en
  • US2068745A - Power tool : en
  • AU100076B2 - Method of accelerating the hardening of mortars and concretes : en
  • FR808070A - Rolling mill for strips, sheets and conical rods : en fr
  • DE641384C - Valve that can be opened by hand and closes automatically under the influence of spring force : de en
  • PL24270B3 - A method of dyeing fur, hair, feathers and products made of these materials. : en pl
  • US2069116A - Composite grinding wheel and method of making the same : en
  • CA363727A - Building material : en fr
  • USD102874S - Pepper shaker : en
  • CH188862A - Laundry detergent. : de en
  • CH188924A - Luminous glasses. : de en
  • PL24310B1 - Lampholder with spring-loaded contacts, especially for electric bulbs in headlamps. : en pl
  • US2068742A - Insecticide : en
  • CH188892A - Foaming product. : de en
  • GB460382A - Improvements in and relating to jacquard pattern mechanisms for knitting frames or knitting machines : en
  • GB460573A - Improvements in coin-freed vending apparatus : en
  • DE641309C - Device for pressing in V-shaped wire hooks for belt connectors in belts or wide transport belts : de en
  • SU50359A1 - Optical instrument for measuring outside diameters : en ru
  • AT148417B - Arrangement for grid control for elastic converters with grid-controlled vapor or gas discharge paths. : de en
  • PL24317B1 - Bicycle bell. : en pl
  • DE641290C - Device for raising and lowering electrical switches which are fastened in a row on a support frame and can be lowered : de en
  • FR808031A - Automatic smoothing and polishing machine : en fr
  • PL24328B1 - The method of making bread. : en pl
  • USD102970S - Design for a comfortable : en
  • DE641242C - Wooden wall structure : de en
  • US2068701A - Switch mechanism : en
  • US2068765A - Mailing tube : en
  • PL24325B1 - Tying machine, especially for tying warp threads. : en pl
  • US2069067A - Adjustable shelf : en
  • US2069178A - Method of dispersing resins and composition produced thereby : en
  • USD102969S - Design fob an air-conditioning con : en
  • CH188847A - Adjustable sun canopy for strollers. : de en
  • PL24275B1 - A device for joining two or more firearms to operate them together. : en pl
  • USD102933S - Design for a game board or the like : en
  • CA363673A - Tabulating machine : en fr
  • GB460289A - Improvements in or relating to hydraulic control apparatus : en
  • US2068866A - Tobacco pipe : en
  • CH188824A - Process for the production of a powdery building material containing fusible organic components. : de en
  • CA363711A - Handle for storage battery cases : en fr
  • CH188938A - Razor. : de en
  • CH188949A - Variable capacity screw compressors with intermeshing screw gears. : de en
  • US2068846A - Duplex spring vehicle bumper : en
  • GB460395A - Improvements in elevated tracks for motor vehicles : en
  • GR6268B - CAFE KITCHEN OPERATING WITH SMALL QUANTITY OF FUEL. : el en
  • FR808020A - Device for fixing railway tracks : en fr
  • CA363736A - Conduit : en fr
  • CH188884A - Process for the preparation of a chromable azo dye. : de en
  • CH189004A - Dump trucks. : de en
  • DE641324C - Compensation control for two or more engine aircraft : de en
  • CH188974A - Device for the operation of converters. : de en
  • DE641244C - Carburetor : de en
  • US2068874A - Calking tool guide : en
  • DE641438C - Letter folder with a mechanism that can be tilted with its base plate on the back of the folder near one of the back edges : de en
  • US2068689A - Refrigerating apparatus : en
  • US2068724A - Apparatus and method of making nontangling string handle bag packages : en
  • CH188883A - Process for the preparation of a new aromatic sulfone. : de en
  • FR807956A - Device to take measurements for the custom shoe : en fr
  • GB460421A - Improvements in automobile bodies : en
  • CH189023A - Icebreaker. : de en
  • GB460658A - Improvements relating to storage batteries : en
  • US2068784A - Transmission mechanism of the v-pulley type : en
  • AT148447B - Water supply system, especially for settlements. : de en
  • CH189013A - Wheel chock for automobile wheels. : de en
  • FR807971A - Delayed-action automatic volume control circuit for radio receivers : en fr
  • FR808062A - Starting method for DC motor with independent excitation : en fr
  • CH188832A - Heating plate allowing the use of thin-bottomed containers. : en fr
  • AT148443B - Fitting for the detachable connection of components, in particular furniture parts. : de en
  • FR808107A - Method and apparatus for testing high voltage discharge tube indicators : en fr
  • GB460408A - Improvements in or relating to superheterodyne radio receivers : en
  • SU50305A1 - A method of manufacturing an insulating material and fine porous masses for it : en ru
  • US2069028A - Machinery belt : en
  • PL24360B1 - The method of producing azo dyes filtered in water. : en pl
  • US2068841A - Belt delivery spray drier : en
  • GB460499A - Improvements in and relating to yarn or thread winding frames : en
  • GB460481A - Improvements in or relating to photographic developers : en
  • FR808125A - Oil burner : en fr
  • GB460572A - Improved combination locks : en
  • PL24300B1 - Device for regulating the speed of operation of an automatic welding machine. : en pl
  • US2068790A - Pyrazolones containing wholly or : en
  • US2069153A - Method of making lubrication fittings : en
  • USD102938S - Design for an ice cream cone : en
  • PL24322B1 - Continuously operating trolley cutter. : en pl
  • AT148512B - Water heating system. : de en
  • US2068657A - Heel : en
  • US2068938A - Regulator for the fuel pressure in internal combustion engines : en
  • CH188917A - Apparatus for measuring the amount of heat by means of the evaporation of liquid and process for its production. : de en
  • CH189034A - Process for the preparation of an azo dye. : de en
  • AT148429B - Switch box in which the contact is made by pressing on an elastic wall. : de en
  • CH188925A - Optical observation device. : de en
  • PL24329B1 - Method of mounting pin or roller bearings. : en pl
  • CH188875A - A method of heating solid or pasty carbonaceous materials and a device for the implementation of this method. : en fr
  • AT148441B - Foldable sun protection roof, especially for lounge furniture or the like. : de en
  • GB460346A - Improvements relating to motor vehicles : en
  • GB460526A - Compositions for the covering of roads, floors, walls, tennis courts and the like : en
  • GB460583A - Improvements in lubricating oil : en
  • DE641258C - Production of highly concentrated sulfuric acid from gases containing sulfur trioxide and water vapor : de en
  • GB460629A - Improvements in local anaesthetics : en
  • FR808033A - Process for the continuous pickling of metal surfaces such as those of sheets, tubes, wires : en fr
  • USD102918S - Design fob a clock case : en
  • CH188928A - Dustproof pocket or wrist watch. : de en
  • FR807959A - Hydro-pneumatic device for braking vehicles : en fr
  • FR808045A - Improvements to vehicle suspension : en fr
  • FR808002A - Refrigeration method and device : en fr
  • CH188944A - Tobacco pipe head. : de en
  • GB460524A - Improvements in and relating to printing-plate clamping devices : en
  • CH188926A - Timepiece dial. : en fr
  • GB460439A - Manufacture of monobromopyrene : en
  • GB460509A - Process for the discontinuous operation of horizontal coke ovens : en
  • AT148413B - Electrostatic indicator. : de en
  • DE641211C - Cleaning device for sieves : de en
  • DK52616C - Bread Store. : da en
  • GB460531A - Improvements in or relating to auxiliary charge admission devices for internal combustion engines : en
  • GB460288A - Improvements in or relating to discharge tubes using electrons and/or positive ions : en
  • GB460584A - Improvements in or relating to telephone systems : en
  • CH188822A - Heating system. : de en
  • CA363723A - Bolt shaping machine : en fr
  • CH188841A - Spring supports, in particular for seating furniture. : de en
  • FR808064A - Solid disc wheel : en fr
  • GB460300A - Improved reflector particularly for cycles : en
  • PL24357B1 - The method of baking selected bread. : en pl
  • SU50189A1 - Regenerative device siemensmarten furnace : en ru
  • SU50231A1 - A method of manufacturing fiberized and other building products based on dolomite and magnesium sulphate : en ru
  • PL24264B1 - A device for closing or opening a valve from a distance. : en pl
  • SU50298A1 - Rowing device for ships with included propellers : en ru
  • PL24267B1 - Protective belt. : en pl
  • CA363757A - Foot door opener : en fr
  • SU50304A1 - Adaptation to the carding machine for stopping when the tape breaks, thin pass and filling the pelvis : en ru
  • US2068826A - Belt fastener : en
  • DE641341C - Whisker : de en
  • FR808098A - Lucky bracelet : en fr
  • CH189047A - Process for the preparation of a monoazo dye. : de en
  • PL24351B1 - Coal burner. : en pl
  • CH188886A - Process for the preparation of a water-soluble polyazo dye. : de en
  • DE641322C - Fuel injection pump for internal combustion engines : de en
  • SU50261A1 - Electronic lamp with indirect heating cathode : en ru
  • USD102937S - Design for a bicycle lock : en
  • US2068853A - Voting machine voting booth : en
  • US2068964A - Saw mounting : en
  • US2068968A - Movable staybolt : en
  • US2068694A - Heel fastening means : en
  • US2068719A - Totalizing counter : en
  • CA363712A - Thermal insulating material : en fr
  • CH189044A - Process for the preparation of a monoazo dye. : de en
  • AT148421B - AC switch. : de en
  • CA363656A - Printing apparatus : en fr
  • USD102928S - Design for lace : en
  • USPP229P - Hybrid poplar : en
  • DE641120C - Fountain pen : de en
  • US2068856A - Combined still and coil cracking : en
  • USD102865S - Design fob a siphon bottle ob simi : en
  • US2068795A - Apparatus for increasing the intensity of flaming arcs : en
  • US2069098A - Metalworking machine : en
  • US2068763A - Container : en
  • FR808182A - Improvements to roller blinds : en fr
  • AT148459B - Process for the direct production of pig iron. : de en
  • CH189042A - Process for the preparation of a monoazo dye. : de en
  • FR808015A - Tubular parts and their method of manufacture by helical winding : en fr
  • DE641340C - Device for adjusting the length and the position of a slit image on the carrier for optical sound recording : de en
  • GB460249A - Manufacture of n-(aminoalkyl)-anthranilic acid alkyl esters : en
  • GB460503A - High frequency coil : en
  • GB460551A - An improved pneumatic or hydraulic control device : en
  • SU49758A1 - Modulator of the magnetron generator : en ru
  • US2069101A - Aerial flare : en
  • USD102967S - Design for a bevoltjble cake tray : en
  • DE641356C - Lock lock for firearms : de en
  • GB460545A - Improvements in mail chutes : en
  • SU50204A1 - A device for transporting logs : en ru
  • US2069107A - Machine tool : en
  • AT148457B - Device for steaming various materials, in particular grain. : de en
  • CA363745A - Wire twisting tool : en fr
  • CH188902A - Sheet feed apparatus of a printing press. : en fr
  • US2069053A - Vulcanized rubber and method of vulcanizing the same : en
  • US2069090A - Tire retread and process of producing and applying the same : en
  • GB460262A - Circuit arrangement for providing a back-coupling to a control grid in an electron valve : en
  • US2068927A - Hypodermic syringe : en
  • US2069187A - Process of converting soy-bean oil, and of obtaining lecithin : en
  • FR808162A - Projection device with film with alternating and shifted images, and projectors for its use, with double window : en fr
  • US2068825A - Industrial truck : en
  • US2068867A - High voltage electrical plant : en
  • GB460306A - Method of and apparatus for drying "crepe" and other fabrics of paper, hair, wool or other material : en
  • IE14076L - Switch mechanism : en
  • SU50280A1 - Device to control the taxi fare : en ru
  • DE641326C - Machine for labeling bottles : de en
  • FR807958A - Tar emulsification process : en fr
  • DE641330C - Process and device for grain ventilation for grain silo systems : de en
  • FR807998A - Methods and devices for the regeneration, in situ, of catalytic or other contact masses : en fr
  • GB460234A - Improvements relating to silencers serving for the passage of gaseous currents : en
  • GR6267B - EFFECTIVE ADVERTISING SYSTEM FOR TICKETS OF MEDIA AND PUBLIC SHOWS. : el en
  • DE641312C - Ignition device for rotatable oven burner tubes : de en
  • GB460474A - Process for the purification of vegetable oils in order to convert them into lubricating oils : en
  • GB460254A - Improvements in ball and socket joints and devices embodying the same : en
  • GB460256A - Improvements in and relating to reciprocating pumps : en
  • GB460496A - Improvements in and relating to devices for indicating current-interruptions in connection with synchronous-motor driven clocks : en
  • GB460664A - Improvements relating to clutches : en
  • US2069086A - Transferring mechanism : en
  • CA363646A - Brake arrangement : en fr
  • US2069111A - Belt end fastener : en
  • USD102863S - Design fob a powder can : en
  • FR808083A - Improvements to the gas carburizing process : en fr
  • SU50263A1 - Magnetron : en ru
  • FR807957A - Process for preparing dibenzanthronic series tank dyes : en fr
  • GB460663A - Improvements in or relating to sound film reproducers, and cinematograph projectors : en
  • GB460628A - An improved smokers' ash-tray : en
  • DE641391C - Process for regulating the excitation current strength of electrical machines by means of controlled gas or vapor-filled discharge tubes : de en
  • AT148422B - Circuit arrangement for compensating for operating voltage fluctuations in amplifiers. : de en
  • US2068921A - Towing fin for vessels : en
  • US2069148A - Refrigerator ice rack : en
  • GB460344A - Improvements in slides for use in optical projection apparatus : en
  • SU50264A1 - Cathodic vision tube : en ru
  • SU50240A1 - Hydrogen production process : en ru
  • CH188950A - Lubricating and sealing device for compressors, in particular centrifugal compressors. : de en
  • DE641349C - Five-stroke rotary switch for controlling electrical heating devices : de en
  • FR808028A - Improvement in the treatment of textile materials to make them resistant to creasing, by incorporating synthetic resins into the fibers : en fr
  • US2068895A - Hopper door and hopper door latch : en
  • US2069167A - 1, 2-aliphatic-diamine thiosulphates and process of preparing them : en
  • CA363708A - Wheel braking system : en fr
  • FR808058A - Fuel injection combustion engine : en fr
  • GB460419A - Apparatus for automatically controlling a variable characteristic, such as temperature : en
  • USD102894S - Design for a shoe : en
  • GB460261A - Blanks for forming guide channels for glass panels : en
  • FR808000A - Apparatus for the preparation of preserves : en fr
  • PL24283B1 - A method of making medicinal preparations from fresh plants. : en pl
  • AT148509B - Extraction device for the kitchen fumes. : de en
  • GB460297A - Improvements in or relating to electric capacity-controlled devices applicable for indicating the approach of a body : en
  • AT148418B - Arrangement for deflecting the cathode ray in Braun tubes. : de en
  • DK52606C - Procedure with associated Tools for Laying Wood Floors. : da en
  • PL24266B1 - Machine for cutting potato cuts. : en pl
  • GB460540A - Improvements in and relating to multiply paper or like sacks or bags : en
  • US2068770A - Printed textile fabric : en
  • FR807997A - Process for preparing high molecular weight condensation or polymerization products having the appearance of oils or resins from aldehydes : en fr
  • FR808188A - Manufacturing process for pipes, columns, slabs and the like : en fr
  • GB460342A - Improvements in mixing machines for powdered, granular and like materials : en
  • CH188833A - Electric cooker comprising at least one auxiliary circuit for powering accessory devices. : en fr
  • CH188914A - Metal cartridge belt. : de en
  • US2068759A - Method of making plywood : en
  • FR808025A - Process for the preparation of plastics in hydrophilic organic colloids : en fr
  • US2069031A - Crank counterbalance : en
  • PL24302B1 - A method of producing a deposit of one or more highly electropositive metals in a sealed vessel. : en pl
  • USD102944S - Design for a lace : en
  • US2068860A - Shoe construction : en
  • DE641370C - Process for the production of artificial teeth and dental prostheses : de en
  • AT148504B - Gas-heated bath heater. : de en
  • CH188960A - Condensate drain. : de en
  • US2068988A - Outlet box : en
  • US2069001A - Method of and apparatus for preparing printing surfaces : en
  • USD102952S - Design fob wrapping paper : en
  • CH188849A - Anti-slip protection on ladders. : de en
  • CH188921A - Process for the detection of small amounts of carbon monoxide in air or other gases. : de en
  • US2068949A - Remote control of printer motors : en
  • DE641343C - Device for displaying the exhaust gas loss from combustion systems : de en
  • US2068734A - Vehicle wheel suspension : en
  • US2069036A - Fumigating cover for a contaminated mattress : en
  • US2069120A - Furnace : en
  • USD102921S - Design for a textile fabric : en
  • FR808081A - Connection device for juxtaposed pipes, parallel or not : en fr
  • US2068934A - Automatic control system for locomotive whistles : en
  • AT148416B - Call facility for telegraph receivers. : de en
  • DE641295C - Control device for scales : de en
  • DE641390C - Circuit arrangement for telex switching systems, in which the occupancy message is given by switching off the previously switched on drive motor of the subscriber set : de en
  • PL24307B1 - A device for heating dense liquids in large tanks. : en pl
  • USD102883S - Unitfd statfs patfnt offiff : en
  • USD102962S - Design fob a knitted fabric : en
  • US2068806A - Cloth laying machine : en
  • US2069043A - Poppet valve clearance indicating caliper : en
  • FR808038A - Improvements to pressurized fluid supply devices : en fr
  • SU50294A1 - Wire wheel tensioning machine : en ru
  • US2069177A - Ferrule : en
  • US2068641A - Spalling resistant refractory brick : en
  • FR808078A - Process for the manufacture of chromium green or chromium sesquioxide hydrate : en fr
  • CH188976A - Device for generating control voltages for arc converters. : de en
  • BE419146A - DEVELOPMENT RELATED TO A FIBROUS FELT PRODUCT, ITS MANUFACTURING PROCESS AND THE APPARATUS USED TO MANUFACTURE IT : en fr
  • CH189050A - Process for the preparation of a monoazo dye. : de en
  • US2068842A - Method and apparatus for the treatment of ores and the generation of gas : en
  • US2068953A - Feeding head for shaker or jigging conveyers : en
  • FR808092A - Air heater : en fr
  • GB460302A - Improvements in means for automatically connecting the fluid systems of detachable tractor and trailer combinations : en
  • US2069019A - Physiologically active preparation and manufacture thereof : en
  • AT148491B - Automatic motorcycle tilt protection. : de en
  • US2068865A - Animal trap : en
  • US2068977A - Slat for venetian blinds and method of making : en
  • BE419075A - Device for cutting a current using a pressurized fluid : en fr
  • DE625292C - Friction wheel lighter : de en
  • US2068991A - High frequency apparatus : en
  • SU48432A1 - Method for winter extraction and drying of peat : en ru
  • CH189058A - Guide device intended to facilitate the cutting of strips with parallel edges by means of scissors. : en fr
  • DE641154C - Device for feeding sheet sections in cigar machines : de en
  • US2069129A - Collector ring and distributor : en
  • DE641315C - Adjusting device for rotating rings of machine guns or rotating battle towers, especially on aircraft : de en
  • AT148468B - Process for the preparation of monoazo dyes. : de en
  • CH188885A - Process for the preparation of an azo dye. : de en
  • US2068849A - Eyeshield : en
  • GB460427A - Improvements in or relating to hydraulic presses : en
  • BE419263A - DEVELOPMENT OF MINING GALLERY EXECUTIVES : en fr
  • FR808180A - Method of making and quickly assembling bicycles and similar vehicles : en fr
  • PL24342B1 - Auxiliary engine for starting aircraft controls. : en pl
  • CA363663A - Rubber article joining apparatus : en fr
  • FR807991A - Method of applying phosphors to the glass wall of electric discharge vessels : en fr
  • DE641304C - High voltage, gas or vapor discharge vessel for the generation of very fast positive corpuscular rays by means of surge voltage : de en
  • FR808153A - Vehicle wheels manufacturing process : en fr
  • FR808074A - Process for preparing 6-amino-2-hydroxynaphthalene-3-carboxylic acid : en fr
  • FR808116A - Installation comprising a gas-filled electric discharge tube : en fr
  • GB460557A - A two-coloured or multicoloured bicycle tire and the method of manufacturing such tires : en
  • DE641439C - Rotating piston valve for reversible piston engines : de en
  • US2068772A - Process for the preparation of chlorine substituted butanes : en
  • AT148490B - Casting mold for centrifugal casting. : de en
  • US2069127A - Remote control for radio apparatus : en
  • DE641413C - Additional device for record speaking machines : de en
  • CH188899A - Envelope. : de en
  • AU106536A - Manufacture of basic esters of polyaryl-acetic acids : en
  • CH188922A - Oxygen display device for checking the oxygen content of water. : de en
  • FR808164A - periscope for armored vehicles : en fr
  • US2068994A - Cushion joint : en
  • US2068859A - Floating pump plunger : en
  • US2069146A - Roadway bridge connection : en
  • GB460314A - Improvements in or relating to magazines for feeding pallets to machines for making tiles, slabs and the like : en
  • US2069074A - Carbonaceous fuel and method of preparing the same : en
  • CH188971A - Electric time switch for staircase lighting. : de en
  • AT148433B - Circuit arrangement for telephone systems with voter operation and company lines. : de en
  • USD102893S - Design for a jewelry box : en
  • PL24269B1 - A method of obtaining pattern effects on fabrics. : en pl
  • DE641267C - Use and elimination of the ammonia-water vapor mixture passing over from the ammonia stripping columns of a coal degassing system : de en
  • US2068756A - Interlocking shingle : en
  • FR808080A - Method of making inner coils for vacuum tubes : en fr
  • CH188818A - Hermetic sealing on room locking devices. : de en
  • US2068778A - Sign : en
  • SU50255A1 - Control method at a distance : en ru
  • SU50293A1 - Sighting device for aircraft : en ru
  • DE641396C - Perforated disc for meat mincers : de en
  • USD102955S - Design for a waterproof wall tele : en
  • FR808171A - Hand-held device for placing overcapping capsules : en fr
  • GB460347A - Improvements in and relating to insulated electric conductors and methods of making the same : en
  • FR807917A - Hydraulic clutch and brake mechanism : en fr
  • FR808051A - Improvement made to the fan rotor with reversible direction of rotation : en fr
  • FR808049A - Self-sealing door for coke ovens : en fr
  • FR808075A - Cathode ray tube : en fr
  • US2068845A - Process of manufacturing hard bituminous materials : en
  • AT148423B - Vehicle engine with pronounced poles. : de en
  • US2068947A - Wheel : en
  • CA363747A - Chromium deposition : en fr
  • CH189055A - Electric momentary heat regulator. : de en
  • AT148534B - Process for the production of electrolytic capacitors. : de en
  • CH188825A - Device for opening and closing hinged windows, hinged doors, etc. : de en
  • CH188846A - Clamping device on deck chairs with swiveling back and head rests to adjust the latter. : de en
  • US2068715A - Vehicle body structure : en
  • CA363774A - Current theft prevention device : en fr
  • USD102922S - Design for a textile fabric : en
  • USD102911S - Design for a tire : en
  • GB460543A - Improvements in and relating to impregnated or treated cloths and the like : en
  • US2068894A - Copy holder machine : en
  • US2068900A - Horn : en
  • DE641303C - Electron tubes for rectifying electrical alternating voltages of small amplitude : de en
  • DE641329C - Car tipping system with a fixed intermediate bunker : de en
  • US2068644A - Pad for the shoulders of wearing apparel : en
  • GB460328A - Improvements in or relating to weft feeler devices for looms for weaving : en
  • CA363690A - Telephone exchange system : en fr
  • FR808133A - Man hat : en fr
  • PL24260B1 - Air filter for gas filters in internal combustion engines. : en pl
  • GB460310A - Improvements relating to washing machines : en
  • US2068862A - Chain link connection : en
  • GB460375A - Improvements in or relating to the manufacture of soluble chlorites : en
  • GB460217A - Improvements in or relating to means for aerating cream, cake mixtures and the like : en
  • US2068879A - Photographic relief process : en
  • US2068914A - Ticket printing and issuing machine : en
  • AT148529B - Buckle for suspenders u. like : de en
  • US2068940A - Electric cable : en
  • PL24353B1 - A diffuser insert and a diffuser with such inserts. : en pl
  • FR807984A - Process for softening textiles and improving their resistance to dyes and water : en fr
  • GB460660A - Improvements in gear shifting mechanism : en
  • FR807920A - Sliding bearings improvements : en fr
  • FR807936A - Method for removing hydrocarbons of interest from solid carbonaceous materials : en fr
  • GB460764A - Improvements in variable speed transmission mechanism : en
  • CH188940A - Hair clipper operated by spring force. : de en
  • DE641417C - Hook needle sewing machine for leather : de en
  • US2069005A - Tamperproof nonrefillable closure : en
  • FR808072A - Improvements in the manufacture of lamp bases : en fr
  • SU50198A1 - Mining harvester for excavation workings and tunnels : en ru
  • US2068820A - Electrical device for the absorption of mechanical energy : en
  • FR808151A - Electric arc welding transformer : en fr
  • PL24312B1 - Machine for grinding paper pulp. : en pl
  • SU50200A1 - Scraper loading method : en ru
  • FR808198A - Method of grooving transmission belts : en fr
  • SU50276A1 - Method and device for obtaining approximately a parallax-free central projection of a spatial elevation on an image plane in a range finder : en ru
  • US2068819A - Shipping crate : en
  • DE641213C - Device for crushing tobacco : de en
  • IE14234L - Metal-vapour electric discharge tubes : en
  • FR808178A - Further training in rolling devices : en fr
  • DE641210C - Grip sleeve for handle tools : de en
  • SU50290A1 - Portable breathing apparatus : en ru
  • DE641270C - Process for the preparation of pyridinium ethanols substituted by heterocyclic radicals : de en
  • GB460334A - Improvements in and connected with the arrangement and mounting of engines and gears in motor road vehicles : en
  • AT148488B - Board game. : de en
  • FR807989A - High-frequency multi-core cable : en fr
  • FR808150A - Roller axle box, especially for narrow gauge vehicles : en fr
  • US2068654A - Electromagnetic friction device : en
  • US2068833A - Check valve : en
  • CH188836A - Variable capacity range oven. : en fr
  • CH189033A - Process for the production of a new azo dye. : de en
  • DE641292C - Arrangement for canceling the current reversing and transformer reversing voltage of state-of-the-art commutator machines : de en
  • US2069073A - Art of forming assemblies : en
  • US2068851A - Air conditioning system for railway passenger cars : en
  • USD102939S - Design fob a combined liquid con : en
  • USD102917S - Design for a chair : en
  • USD102941S - Design for a fender splash guard : en
  • SU50292A1 - Variable pitch propeller : en ru
  • DE641222C - Self-seller for electricity with basic fee collection : de en
  • FR808086A - Coating and its method of application : en fr
  • GB460370A - Improvements in or relating to the assortment and/or feeding of eyelets or like fastening or reinforcing articles : en
  • DE1396976U - : de en
  • DE641224C - Process for drying sewage sludge : de en
  • DE641316C - Magnetron tubes : de en
  • DE641423C - Line processing device for die setting and line casting machines : de en
  • FR808047A - Grid to support objects in enamelling ovens : en fr
  • PL24319B1 - A method of increasing the bite resistance of aluminum alloys containing from 3% to \ 6% magnesium. PittM additional to psHot No. 24245. : en pl
  • GB460380A - Improvements in or relating to cylinder heads for internal combustion engines : en
  • CA363754A - Percolator top : en fr
  • CH189051A - Process for the preparation of a monoazo dye. : de en
  • US2068675A - Method of and apparatus for manufacturing screens : en
  • US2069085A - Adjustable concrete form spacer and clamp : en
  • USRE20251E - Engine cooling device : en
  • FR808145A - Braking device particularly intended for motor vehicles : en fr
  • PL24297B1 - The method of producing the photosensitive layer. : en pl
  • SU49261A1 - Poisoning device for telemechanical devices : en ru
  • SU50269A1 - Dry cleaning method : en ru
  • PL24279B1 - Contact tool for pedestals of electron tubes. : en pl
  • US2069132A - Friction and direct drive coupling : en
  • US2068714A - Elastic permanent way : en
  • US2069075A - Bottle or like container : en
  • CA363632A - Metal pipe : en fr
  • US2068729A - Oil well pump : en
  • US2068891A - Air-cooled reabsorption refrigerating apparatus of the intermittent type : en
  • US2068801A - Borosilicate glass containing cerium : en
  • US2069181A - Mechanical toy : en
  • SU50257A1 - Electric transformer : en ru
  • USD102940S - Design for a golf ball or the like : en
  • DE641276C - Injection carburetor : de en
  • FR808156A - Aluminum alloys and their applications : en fr
  • AU100098B2 - Improvements in and relating to the manufacture of magnetic materials : en
  • GB460510A - Improved folding box or carton : en
  • FR808199A - Product for cold cleaning of all vitrified surfaces : en fr
  • US2068922A - Handle construction : en
  • CH188829A - Process for producing fuel from sawdust, paraffin and charcoal dust. : de en
  • DK52620C - Propulsion unit, in particular for Motor Vehicles with the Engine located in the rear of the Vehicle. : da en
  • GB460522A - A new or improved delivery scraper for mills used for mixing, grinding, refining, and other processes : en
  • PL24318B1 - A method of producing materials with absorbent, alkali-exchangeable and base-binding properties. : en pl
  • US2068780A - Egg carton : en
  • PL24242B1 - A method of making insulated wires, cables, capacitors, capacitor bushings or similar high voltage insulated articles, and a cable, capacitor and high voltage capacitor bushing made by this method. : en pl
  • US2068986A - Harness for cross weaving : en
  • US2069138A - Reciprocating table drive mechanism for machine tools : en
  • FR808142A - Improvements to vehicle chassis frames : en fr
  • FR808140A - Device for delivering pulp, cellulose, etc., to the web or form of paper machines, cellulose thickening machines, etc. : en fr
  • GB460473A - Road construction : en
  • PL24286B1 - Explosive material. : en pl
  • DE641364C - Modular glow lamp : de en
  • DK52609C - Artificial stone, especially useful for grinding stones. : da en
  • US2068717A - Safety razor : en
  • AT148520B - Printing unit for cash registers or accounting machines. : de en
  • US2068912A - Listing : en
  • USD102956S - Design fob a body for two-wheeled : en
  • CA363637A - Tube mill : en fr
  • FR808069A - Method and device for the hydrolysis of fats : en fr
  • FR808123A - Water tube locomotive boiler : en fr
  • PL24321B1 - Device for the precise transmission of continuous and infinite rotational movements over a distance. : en pl
  • FR807944A - Improvement of sealing devices for machine parts with a relative rotational movement : en fr
  • GB460529A - Improved means for distributing water from a hot water and cold water mixing chamber : en
  • FR808040A - New catalyst and its applications : en fr
  • DE641353C - Bagging scales with split sack spout : de en
  • FR808073A - Pulse recording device : en fr
  • FR808115A - Washing machine : en fr
  • GB460307A - Improvements in or relating to presses for trousers or other garments : en
  • GB460363A - Improvements in or relating to reinforcing material and manufacture thereof : en
  • GB460433A - Improvements in and relating to centrifuges : en
  • GB460231A - Milling and like machine-tools : en
  • GB460558A - An improved reversible propeller : en
  • DE641373C - Device for group-wise division and introduction of briquettes or the like in packaging machines : de en
  • GB460768A - Improvements in or relating to couplings for road vehicles : en
  • US2068850A - Process of improving gasoline : en
  • SU50203A1 - Superphosphate ammonization apparatus : en ru
  • US2068785A - Method of manufacturing low carbon steel : en
  • GB460349A - Improvements relating to the supply of combustible mixture to an internal combustion engine : en
  • DE641352C - Device for protecting line sections : de en
  • CA363660A - Reinforcing material : en fr
  • US2068933A - Display apparatus : en
  • GB460527A - Method of and means for packing eggs : en
  • DE605174C - Process for the production of tertiary organic phosphates : de en
  • US2069176A - Metallic wall or partition : en
  • DE641430C - Lubricating oil pump with approximately horizontal piston : de en
  • GB460514A - Improvements relating to cabinets primarily for storing garments : en
  • DE641225C - Thermoplastic rubber-containing insulating material for electrical cables, especially for telecommunications cables : de en
  • GB460406A - Improvements in and relating to condensers for refrigerating machines : en
  • US2068999A - Cigarette extinguisher : en
  • AT148462B - Process for the preparation of heptacarbocyanines. : de en
  • USRE20258E - Vehicle wheel : en
  • DE641418C - Endless apron conveyor : de en
  • PL24340B1 - Method of cathodic spreading. : en pl
  • GB460338A - Improvements in tyres for vehicles : en
  • GB460397A - Improvements in or relating to discharge tubes using electrons and/or positive ions : en
  • GB460566A - Process for the manufacture of double compounds of secondary amides of 3.5-dimethyl-isoxazole-4-carboxylic acid : en
  • FR808088A - Process for supplying internal combustion engines with compressed or liquefied gases, using pressure reducing valves : en fr
  • GB460343A - Improvements in or relating to weighing apparatus : en
  • DE641253C - Electrical outlet : de en
  • FR808194A - Method for supercharging two-stroke engines with opposed pistons and an engine comprising application : en fr
  • GB460582A - Agricultural tillage machine : en
  • US2069058A - Septic tank : en
  • CA363633A - Newspaper selling machine : en fr
  • CH188929A - Clockwork movement with central seconds hand. : en fr
  • CH188981A - Pneumatic shoe insert. : de en
  • FR807933A - Escalator : en fr
  • GB460301A - A new or improved mould for casting printing plates : en
  • FR808017A - Profile : en fr
  • GB460374A - Improvements in or relating to the manufacture of water soluble chlorites : en
  • CA363759A - Pressure filter : en fr
  • US2068792A - Screw propeller, turbine rotor, and like device : en
  • FR808050A - Improvements made to light infantry mortars of caliber between 40 and 65 mm : en fr
  • PL24281B1 - A method of mounting the cells on the tapes of zipper closures and a machine for carrying out the method. : en pl
  • DE641372C - Poekel tool : de en
  • DK52624C - Feeder for the Workpiece in Edge Burners. : da en
  • FR807942A - Process for manufacturing articles of fusible materials with a vitreous appearance and articles obtained by this process : en fr
  • GR6263B - FRAGRANT FLOWER. : el en
  • GB460562A - Improvements in and relating to thermionic valve circuits : en
  • AT148483B - Precision seeder. : de en
  • CA363666A - Acetaldehyde production : en fr
  • CA363767A - Mop : en fr
  • BE418917A - : en
  • US2069042A - Automatic punching and riveting machine : en
  • FR808026A - Device for feeding a two-stroke engine by rotary distributor : en fr
  • GB460311A - Mechanical game apparatus : en
  • CA363716A - Four point contact chain : en fr
  • SU50268A1 - Kolosnikova lattice : en ru
  • GB460576A - Improvements in or relating to gelatinous or semi-gelatinous blasting explosives : en
  • US2068892A - Method of coating surfaces : en
  • US2069193A - Automatic roaster : en
  • US2068972A - Silo door construction : en
  • CA363771A - Printer's tool : en fr
  • CH188863A - Dish for laundry shortages. : de en
  • CH188868A - Clip to hold the coat over the thighs and knees. : de en
  • CH188959A - Cooling device for keeping food such as butter and the like cool. : de en
  • US2068869A - Mechanism fob power transmission : en
  • BE419499A - : en fr
  • DE1396909U - : de en
  • CH189026A - Process for the production of a polynuclear ring ketone. : de en
  • CA363647A - Pigmented paper : en fr
  • CA363714A - Composited filter element : en fr
  • CH188945A - Heat protection mat. : de en
  • GB460242A - Improvements in and relating to calcium sulphate plasters : en
  • GB460402A - Improvements in decompression devices for facilitating the starting of internal combustion engines : en
  • AT148495B - Luggage racks for motor vehicles, in particular with a streamlined body. : de en
  • CA363654A - Cellulose derivative solution : en fr
  • GB460308A - An improved lifeguard for use in connection with road vehicles : en
  • IE14773L - Variable speed gear : en
  • US2068650A - Duplex adding machine : en
  • US2068693A - Dial assembly : en
  • SU50303A1 - Electric pilot tube : en ru
  • US2068768A - Detector for ultra short waves : en
  • US2068885A - Automatic clutch : en
  • GB460384A - Manufacture of indigoid dyestuffs : en
  • SU50224A1 - Method and device for making positive perforated films : en ru
  • FR808101A - sheet pile elements : en fr
  • US2069114A - Swift : en
  • FR808163A - Alcohol torch for installing suction cups : en fr
  • AT148485B - Holding device for keys u. like : de en
  • FR807987A - Advanced cage bed : en fr
  • DE641392C - X-ray facility : de en
  • FR808127A - Device that can be used as a folding table or seat : en fr
  • FR808134A - Improvements to gas carburizing furnaces : en fr
  • GB460253A - Improvements in or relating to microscopes : en
  • AT148486B - Goat mold for casting using the centrifugal casting process. : de en
  • AT148542B - Tube amplifier. : de en
  • CH189024A - Aircraft propeller. : de en
  • DK52623C - Device for welded Ships, Barges and other Vessels. : da en
  • USD102875S - Design for a cake box : en
  • USD102864S - Design for a signal lamp : en
  • US2068803A - Vacuum pump : en
  • US2068920A - Casing and supporting foot structure : en
  • US2069174A - Air-swept grinding mill : en
  • US2068711A - Stock quotation system : en
  • US2068777A - Face lifting device : en
  • PL24263B1 - Non-bursting semi-rigid tank designed for liquid fuel for aircraft. : en pl
  • AT148546B - Cassette for radio sets. : de en
  • CH188990A - Cash register. : de en
  • CH189030A - Process for the preparation of 2-methyl-amino-4-chlorophenol. : de en
  • FR807914A - New model of pipe reducing salivation and eliminating the arrival of saliva in the home : en fr
  • GB460394A - Process for the manufacture of agglomerates from carbonaceous material without addition of a binder, and products resulting from this process : en
  • GB460229A - Adjustable seat : en
  • GB460359A - Improvements relating to the ventilation of containers for storing combustible liquids : en
  • SU50232A1 - Mechanism for transferring motion to the working shaft from the cylinder in a piston pulling machine : en ru
  • US2069057A - Furnace : en
  • PL24278B1 - Aiming device for direct and indirect shooting. : en pl
  • US2068847A - Process of treating a petroleum oil : en
  • USD102888S - Design for a printed textile fabric : en
  • AU27437A - Improvements in or relating to thermionic valves and to circuit arrangements incorporating the same : en
  • CA363680A - Metal wool pad forming machine : en fr
  • GB460508A - Improvements in maskings for projection screens : en
  • US2068735A - Bottle closure : en
  • US2068945A - Carrier for braiding machines : en
  • US2068672A - Tank flush valve-ball type : en
  • SU50251A1 - A device to compensate for the effect of varying lamp slopes : en ru
  • GB460259A - Improvements relating to life-saving apparatus for boats : en
  • DE641230C - Production of aluminum fluoride by thermal decomposition of aluminum double fluorides : de en
  • GB460528A - Manufacture of imidazole-dihydrides-(4:5) : en
  • CH188817A - Roof tile storm bracket. : de en
  • CH188935A - Size press. : de en
  • CA363678A - Sound translating device : en fr
  • GB460292A - Improvements in or relating to umbrellas : en
  • DE641300C - Process for the production of alumina from an ammonium alum : de en
  • US2068950A - Optical educational device : en
  • DE641374C - Support of hinged buckets on vehicles : de en
  • US2068660A - Air feed control for rock drills : en
  • GB460467A - Apparatus for attaching metallic clips to card wire filleting or "tops" for use with the flats of carding engines : en
  • GB460373A - Improvements in or relating to electric discharge devices having cold cathodes : en
  • GB460577A - Improvements in or relating to clothes-washing machines and the like : en
  • CH189017A - Anti-skid chain for rubber-tyred wheels. : de en
  • FR808110A - Process for capturing air humidity by condensation : en fr
  • DE641220C - Pot-type current transformers with liquid or solid insulation : de en
  • DE641243C - Ruebenkoepfschippe : de en
  • US2068721A - Method for electrosurgical severance of adhesions : en
  • US2068810A - Lubricated valve : en
  • US2068939A - Slide fastener : en
  • US2069121A - Gear shifting mechanism : en
  • AT148401B - Can be shortened. : de en
  • AT148458B - Process for the production of dyeings on animal fibers. : de en
  • BE419157A - : en
  • CA363683A - Iron-chromium alloy : en fr
  • CH188978A - Process for removing the mold that forms the negative in the manufacture of prostheses and other moldings. : de en
  • GB460486A - Devices for supporting seating surfaces : en
  • GB460489A - Multistage centrifugal compressor or pump : en
  • FR807907A - Process for making transparent compressed articles free from fillers : en fr
  • GB460426A - Improvements in or relating to modulated carrier wave transmitters : en
  • FR808076A - Connection for resistors carried by insulating bodies and others : en fr
  • GB460309A - Improvements in and relating to thermostatic control devices : en
  • GB460409A - Improvements in or relating to cathode ray tubes : en
  • GB460331A - Improvements in or relating to spraying nozzles and like appliances : en
  • GB460654A - Improvements relating to oscillatory electric circuits : en
  • GB460274A - Improvements in and relating to feeding bottles and attachments thereto : en
  • GB460532A - Improvements in or relating to the continuous vacuum distillation of high boiling-point products : en
  • AT148460B - Process for increasing the driving force of brewer's yeast. : de en
  • AT148537B - Method for amplitude modulation. : de en
  • CH188826A - Process for the production of shatterproof glass. : de en
  • CH189020A - Ventilation device on vehicles. : de en
  • DE641358C - Arrangement for synchronizing synchronous machines : de en
  • USD102885S - Design for a printed textile fabric : en
  • USD102905S - Design for a combined clock case : en
  • AT148538B - Variable capacitor with ceramic material as dielectric. : de en
  • DE641250C - Two-stage rectification column : de en
  • DE641406C - Switch with extinguishing of the arc by a flow of compressed gas : de en
  • DE641314C - Method of processing potatoes on dried potatoes : de en
  • US2068984A - Cutter chain and bar : en
  • USD102927S - Design for lace : en
  • AT148442B - Malschloss. : de en
  • GB460393A - Improvements in sliding block bearings : en
  • US2068652A - High speed spindle and bearing means for the same : en
  • US2069102A - Vehicle ventilating device : en
  • PL24277B1 - Method for leaching alumina materials with concentrated sulfuric acid. : en pl
  • AT148439B - Cable distributor, in particular for television cables or the like. : de en
  • AT148526B - Automatic call facility for receiving warning signals. : de en
  • CA363631A - Beryllium oxide concentration : en fr
  • FR808021A - Radio receiver for receiving sound and images : en fr
  • DE641217C - Process for the preparation of methyl isobutyl carbinol : de en
  • GB460333A - Improvements in or relating to the arrangement and disposition of parts in electrically-driven self-propelled vehicles : en
  • GB460575A - Colouration of textile and other materials : en
  • US2068691A - Arcing apparatus : en
  • US2069048A - Lather bowl : en
  • US2069026A - Baking plate : en
  • FR807911A - Resistex claw for film training : en fr
  • GB460456A - Improvements in stop mechanism for machines for winding yarns or threads, filaments or analogous materials : en
  • GB460555A - Improvements in and relating to machines for decorticating bast fibres : en
  • US2068755A - Rack for floor coverings and the like : en