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