• US2302035A - Binder folder : en
  • DE727977C - Ventilation of refrigeration machines : de en
  • DK60333C - Procedure for Concentration and Excretion of Particles Distributed in Liquid or Air, Using Cataphoresis. : da en
  • US2302044A - Refrigerating apparatus : en
  • US2302389A - Fastener : en
  • US2302639A - Method of packaging and refrigerating perishable commodities : en
  • AU116122B2 - Improvements relating togas cookers : en
  • AU116098B2 - Improvements in or relating to hand woodworking planes made of metal : en
  • CA408745A - Lobster keeping method and apparatus : en fr
  • US2302506A - Duplicating attachment for milling machines : en
  • US2302242A - Air valve for punch presses : en
  • NL54290C - : en
  • US2301913A - Catalytic treatment of hydrocarbons : en
  • US2302521A - Band brake mechanism : en
  • DE728193C - Wind tunnel system : de en
  • GB549317A - Improvements in and relating to therapeutically useful substances : en
  • US2301965A - Process of separating waxcontaining materials : en
  • US2302375A - Artificial tooth and method of making the same : en
  • US2302225A - Torpedo guard for ships : en
  • US2302436A - Brake pedal mechanism : en
  • US2302559A - Stapling : en
  • US2301958A - Work balancing machine : en
  • FR876876A - Device for the regular distribution of a liquid flowing on support plates : en fr
  • AU237741A - An improved process of ore concentration : en
  • US2302166A - Dispensing apparatus : en
  • US2302542A - Closure cap and method of making : en
  • US2302481A - Electric welding machine : en
  • US2302602A - Combined table and ironing board : en
  • DE727984C - Transparent tab with insert frame for labels for files : de en
  • FR876762A - Apparatus for separating carbon dioxide and nitrogen leaving an engine to enrich the lean gas feeding it : en fr
  • CA408725A - Mattress : en fr
  • US2302184A - Rebound device : en
  • US2302607A - Means for treating steel : en
  • DE728048C - Support for the packed parachute arranged on the back of an aircraft pilot's seat : de en
  • DE728187C - Process for the cinematographic recording of human and animal body cavities : de en
  • DE728154C - Circulation device for end sections of water pipes u. like : de en
  • DE728177C - Two-part duct : de en
  • CA408644A - Mine car : en fr
  • CA408746A - Textile fabric making method : en fr
  • DE728142C - An oil heater that can be connected to the oil container of an aircraft engine or the like : de en
  • CA408646A - Signal recording apparatus : en fr
  • DE727832C - Fusible conductor arrangement for short-circuit-proof fuse cartridges : de en
  • FR876758A - Closing ring adaptable to car headlights for side light signaling : en fr
  • GB549370A - Polymeric materials : en
  • DE728006C - Ball bearings for a swivel chair seat : de en
  • DE728184C - Flat weft knitting machine with double edge device : de en
  • FR876703A - Gas starter for engines : en fr
  • CA408648A - Catalyst production : en fr
  • AU116121B2 - Improvements in or relating to devices comprising an electric gaseous discharge tube : en
  • US2301917A - Coffee maker : en
  • US2302084A - Manufacture of slide fasteners : en
  • US2302464A - Styrene polymerization products and process of making the same : en
  • FR876782A - Condenser-heater for gasifier : en fr
  • US2302244A - Pipe coupling and sealing device : en
  • US2302631A - Ingot stripping mechanism : en
  • US2301980A - Metallic-vapor discharge device : en
  • DE727917C - Process for improving the fastness properties of dyeings with substantive dyes on cellulose fibers : de en
  • GB549435A - Improvements in or relating to folding shoes for use in conjunction with tape applying mechanisms : en
  • DE728045C - Elevation chamber for aircraft : de en
  • DE728031C - Device for loosening the briquette line from the press grooves of a multi-line ring roller press : de en
  • US2302326A - Automatic consistency control : en
  • AU116054B2 - Improvements in or relating to transmission belts : en
  • US2302038A - Switch and signal control system for railroads : en
  • US2302655A - Reduction of petroleum nitrogen bases : en
  • DE728127C - Liquid-tight encapsulated electrical machine : de en
  • US2302175A - Pressure regulator : en
  • DE727983C - Shaving brush : de en
  • FR876716A - Method and machine for cutting openings in close-edged sheet metal tubes : en fr
  • NL54207C - : en
  • AU245841A - Improvements in tubular rivets : en
  • CA408677A - Discharge device vapour condensing means : en fr
  • US2302551A - Circuit breaker : en
  • US2302126A - Drawing roll and cot for such rolls : en
  • GB549305A - Improvements in or relating to ships adapted to carry removable goods containers : en
  • USD134373S - Design fob a textile fabric : en
  • US2302301A - Typewriting machine : en
  • DE728099C - Can opener : de en
  • DE727995C - Fire chamber for high voltage oil switch : de en
  • DE728046C - Snow start runner : de en
  • DE727941C - Storage for easily expandable rotary axes of electrical engineering devices : de en
  • DE728086C - Device for preventing the flow from breaking off in steep-walled diffusers, in particular in the cooling air duct to a heat exchanger in aircraft : de en
  • FR876707A - Improvements to methods of excitation of oscillations in a transit time apparatus comprising a hollow resonator : en fr
  • NL54362C - : en
  • GB549444A - Method of and apparatus for cutting and splicing thick rubber stock and the like : en
  • DE728014C - Device for determining detonation velocities : de en
  • US2301976A - Piping system : en
  • FR876799A - Sheet metal cage for cylindrical roller bearings : en fr
  • GB549374A - Improvements in or relating to knitting machines : en
  • DE728117C - United steam power and gas turbine plant with pressure firing : de en
  • CA408706A - Stabilized mineral matter : en fr
  • US2302238A - Garment bag rack : en
  • US2302256A - Valve construction : en
  • FR876806A - Improvement to wooden footings : en fr
  • DE728130C - Device for darkening lamps, in particular electric light bulbs, for the purpose of protection against air attacks : de en
  • US2302149A - Electric switch : en
  • US2302206A - Fishing plug : en
  • US2302583A - Plastic composition : en
  • GB549441A - Discharge nozzle for carbon dioxide fire extinguishing apparatus : en
  • DE728191C - Drive for trolleys, sleds, etc. from a stand. : de en
  • FR876854A - Servo-electrically controlled super-oiler device : en fr
  • US2302367A - Combined casting and trimming die : en
  • US2302378A - Adhesive : en
  • US2301990A - Spark plug having a mica insulator for internal combustion engines : en
  • US2302456A - Room heater : en
  • US2302656A - Conveying mechanism for harvesters : en
  • US2302300A - Carrier : en
  • US2301963A - Method of and apparatus for sealing and supporting closures : en
  • US2302208A - Stalk cutter : en
  • DE728101C - Anchoring for horizontal chamber furnaces arranged in batteries for the production of gas and coke : de en
  • US2302064A - Variable speed drive : en
  • US2302330A - Apparatus for orienting tools : en
  • DE728112C - Streamlined vehicle, especially a motor vehicle, with a windbreak for its closable openings : de en
  • US2301935A - Length measuring device : en
  • FR876864A - Further training in measuring and calibration devices : en fr
  • DE728075C - Torsion-stressed insulating shaft for the mechanical drive of electrical circuit breakers, disconnectors or the like. : de en
  • DE727943C - Device for stripping isolated electrical, preferably solid, conductors, in particular enameled wires : de en
  • FR876880A - Method and device for carbonization of peat : en fr
  • US2302549A - Fish line float : en
  • FR876708A - Improvements to electronic lamps in which a speed modulated electron beam is used to excite hollow resonators : en fr
  • US2302372A - Changeable exhibitor : en
  • FR876888A - Device for feeding cartridges to machine guns mounted on rotating crown carriages : en fr
  • USD134375S - Design for an embroidered lace : en
  • US2302499A - Seed planter : en
  • FR876767A - Current rectifier protection process : en fr
  • USD134382S - Design for a therapeutic limb rest : en
  • US2301970A - Punchboard : en
  • US2302082A - Treatment of cellulosic yarns in the manufacture of tire fabrics and product : en
  • US2302513A - Heat exchanger and method of operation : en
  • FR876713A - Process for manufacturing carbon for gasifiers from cellulosic or woody materials : en fr
  • GB549362A - Improvements in or relating to mothproofing wool and woollen materials : en
  • DE727950C - Device for applying pasty, liquid or foamy masses, especially for shaving purposes : de en
  • GB549315A - Improvements in or relating to sound recording film cameras : en
  • US2302028A - Support for clotheslines : en
  • US2302284A - Safety gas pressure regulator : en
  • DE727927C - Device for monitoring the heating of the high-pressure heating pipes of steam ovens : de en
  • FR876790A - Rayon thread spool production process : en fr
  • GB549334A - Improvements in telephone systems : en
  • US2302387A - Chair or similar article of furniture : en
  • US2302190A - Rocking pad spacing and angle gauge : en
  • US2302404A - Valve : en
  • US2302489A - Oil reclaiming apparatus : en
  • DE728041C - Corner connection for folding boxes and process for their manufacture : de en
  • DE728152C - Magnetostrictive sound absorber : de en
  • US2302253A - High vacuum, low temperature drying apparatus : en
  • NL53532C - : en
  • USD134339S - Design for a dress : en
  • CA408698A - Television synchronizing and control system : en fr
  • DE728049C - Swiveling aircraft headlights : de en
  • DE727905C - Centrifugal pump with auxiliary conveyor wheel to seal the shaft gap : de en
  • US2302296A - Control attachment : en
  • US2302645A - Printing process and product thereof : en
  • US2302007A - Switch and signal control system for railroads : en
  • US2302629A - Military airplane : en
  • US2302434A - Process of separating waxes : en
  • DE728124C - Filter to separate the carrier-frequency channels for modulation or demodulation devices : de en
  • GB549356A - Improvements in rivetting, eyelet setting and like squeezing machines : en
  • CA408754A - Direction finding system : en fr
  • US2302329A - Liquid fuel burning apparatus : en
  • DE727996C - Reversible pole winding for commutator machines : de en
  • DE728036C - Process for the preparation of 3,5-substituted 2,4-dioxooxazolidines : de en
  • US2302336A - Method and apparatus for keeping live shellfish : en
  • CA408732A - Television receiving system : en fr
  • US2302529A - Dfpeating valve shutoff system : en
  • FR876834A - Guide horn for rigid automatic couplings with axial buffers, in particular for railway vehicles : en fr
  • GB549386A - Improvements in or relating to the manufacture of soap : en
  • US2302104A - Electronic micrometer : en
  • CA408652A - Sheet material feeding mechanism : en fr
  • US2302417A - Closure for containers : en
  • DE728166C - Device for adjusting the individual pistons of a multi-cylinder pump, in particular a fuel injection pump : de en
  • US2301982A - Press : en
  • US2302029A - Valve apparatus : en
  • US2302385A - Refrigeration apparatus : en
  • US2302024A - Method of cutting : en
  • US2301934A - Multirange high frequency system : en
  • US2302487A - Hollow core flush panel door : en
  • US2302025A - Accounting machine : en
  • US2302092A - Illumination of passenger vehicles : en
  • DE728008C - Flow indicator for liquids : de en
  • CA408640A - Strip punching machine : en fr
  • GB549422A - Improvements relating to hydraulically-operated machine tools : en
  • US2302198A - Hook and cable coupling : en
  • US2302537A - Relay : en
  • CA408628A - Dual wheeled vehicle : en fr
  • US2302089A - Valve : en
  • DE727849C - Anti-pests against animal pests : de en
  • DE727857C - Process to increase the solubility of carotene and chlorophyll in dried vegetables compared to oil-water emulsions : de en
  • DE727926C - Feeding device of the goods in a standing briquette ring roller press : de en
  • DE728108C - Process for dry cleaning of gases : de en
  • US2302400A - Plastic and viscous material mixing device : en
  • DE727947C - Process for the preparation of dyes of the phthalocyanine series : de en
  • DE728022C - Screw cap, especially for sheet metal cladding in aircraft construction : de en
  • US2302147A - Television viewing screen : en
  • US2302449A - Filter apparatus : en
  • AU370341A - Improvements in or relating to cutting bits for boring wood : en
  • DE727903C - Process for the production of protective layers on photographic material : de en
  • DE728115C - Collapsible guide for the punch shaft of punch punches : de en
  • USD134365S - Design for a combination picture frame and flower holder : en
  • DE728083C - Device for discharging electrostatically charged items to be weighed on precision scales : de en
  • DE728175C - Rail current switch : de en
  • DE727952C - Film studio or the like : de en
  • US2302414A - Key operated mechanism : en
  • GB549340A - Improvements in the manufacture of sulphuric acid : en
  • DE728064C - Conveyor system, in particular pneumatic tube system, in which the target identification of the container is recorded in memories : de en
  • GB549349A - Reactor for performing reactions in the presence of solid contact materials : en
  • US2302133A - Mold for retreading and/or recapping tires : en
  • US2302249A - Pipe spinner : en
  • US2302287A - Burner : en
  • US2301933A - Dispensing container : en
  • US2301954A - Track shoe : en
  • US2302365A - Flatiron support : en
  • US2302167A - Footwear : en
  • US2302491A - Clock : en
  • GB549344A - Regulating device for engine fuel injection apparatus : en
  • FR876710A - Manufacturing process of 2-chloro-butadiene, 1, 3 : en fr
  • FR876851A - Differential for land motor vehicles : en fr
  • FR876839A - Process for removing iron from iron-rich aluminum ores : en fr
  • US2301992A - Electrical relay : en
  • US2302030A - Mold : en
  • US2302228A - Method of chlorination with sulphuryl chloride and production of monochloro-trimethyl acetic acid : en
  • DE728072C - Grinding iron for electric vehicles : de en
  • DE727978C - Method for the electrical transmission of two separate television images intended for joint interlaced and simultaneous reproduction : de en
  • DE727982C - Device for robbing hiking pillars : de en
  • DE728028C - Internal brake for running wheels of vehicles or aircraft : de en
  • DE727992C - Mixing circuit for ultra-short wave superposition receivers : de en
  • DE727923C - Calculating machine, cash register or the like with printing mechanism and counters moved by the paper cart : de en
  • FR876783A - Improvements in the separation of mineral materials : en fr
  • FR876760A - Improvements in the manufacture of wood pulp or cellulose : en fr
  • GB549412A - Improvements in and relating to filament sorting apparatus : en
  • US2302015A - Necktie construction : en
  • CA408635A - Duplex aileron control : en fr
  • GB549303A - Improvements in or relating to the manufacture of oil-soluble polystyrene resinous products : en
  • US2302125A - Driving mechanism : en
  • US2302116A - Oil filter : en
  • US2302431A - Apparatus for separating waxes : en
  • US2302371A - Apparatus for forming and handling prints of butter and the like : en
  • US2302002A - Record controlled perforating machine : en
  • FR876840A - Safety device for pressurized pipelines in the event of tube rupture : en fr
  • US2302059A - Receiver and trigger-plate assembly for firearms : en
  • GB549301A - Improvements in or relating to holders for thermionic valves : en
  • USD134359S - Combination footstool and magazine rack : en
  • FR876773A - Dyeing of cellulose fibers : en fr
  • US2302408A - Dustpan : en
  • US2302310A - Stabilized partially hydrolyzed starch pastes : en
  • US2302648A - Coin chute mechanism : en
  • DE728162C - Box for electrical devices, distribution systems or the like. : de en
  • DE727939C - Display device for guiding a vehicle on a guideline : de en
  • GB549409A - Improvements in electrically driven clocks : en
  • DE728081C - Attachment of the reeds of reed frequency meters : de en
  • GB549396A - Improvements relating to plate clutches : en
  • US2302370A - Fluid operated check valve : en
  • US2302570A - Adjustable tractor axle : en
  • GB549367A - Improvements in mounting device for adjustable inductors : en
  • GB549385A - An improved scaffold clamp : en
  • GB549436A - Rotary loop-taker for sewing machines : en
  • DE727933C - Radio receiver with automatic volume control and noise elimination : de en
  • US2302313A - Electrical discharge device, method of making, and electrode therefor : en
  • FR876829A - : fr
  • DE728100C - Gravel fountain : de en
  • US2301926A - Chlorination of butadiene and copolymers thereof : en
  • US2302018A - Distributing valve for pneumatic hammering tools : en
  • US2302304A - Speed control mechanism : en
  • DE727925C - Process for the photomechanical production of partial printing forms according to multicolored line drawings, in particular multicolored maps : de en
  • FR876729A - Improvements to the supply of thermal engines with alcohol fuel : en fr
  • FR876752A - Variable-speed, electric propulsion wheel with suspension : en fr
  • US2302347A - Electrical switch mechanism : en
  • DE728017C - Pressure lubrication head, the connection head of which is provided with a convex, in particular spherical, surface : de en
  • FR876755A - Relay : en fr
  • FR876774A - Cinematographic film framing process : en fr
  • GB549302A - Improvements in or relating to reciprocating pumps : en
  • GB549427A - Improvements in or relating to the production of plastic substances in a foraminous state : en
  • US2302512A - Centrifugal separating machine : en
  • US2302579A - Slipper : en
  • FR876891A - Reinforced concrete column and its assembly and erection process : en fr
  • US2302348A - Control unit for temperature regulation : en
  • DK60332C - Collectibles. : da en
  • FR876833A - Electric discharge tube device : en fr
  • GB549324A - Improved means for testing and selecting electrical circuits, particularly in automatic telephone systems : en
  • DE728007C - Support chain elevator : de en
  • CA408751A - Rubber regeneration : en fr
  • GB549388A - Printing inks : en
  • US2301927A - Merchandising package : en
  • US2302395A - Electric switchgear : en
  • US2302209A - Catalytic conversion system : en
  • US2302531A - Forging machine stock gauge : en
  • DE727979C - Arrangement for suppressing interfering harmonics in multi-stage shortwave tube transmitters : de en
  • FR876850A - Mechanical-hydraulic power transmission for railcars and similar vehicles : en fr
  • US2302109A - Vane type piston : en
  • US2302006A - Switch and signal control system for railroads : en
  • USD134357S - Design for a ring or similar article : en
  • DE727991C - Method for influencing the frequency of high-frequency alternating voltages of ultra-short wavelengths : de en
  • DE728065C - Drilling tool for percussive drilling on the rope : de en
  • USPP554P - Ornamental plant vine : en
  • US2302016A - Printing telegraph system : en
  • FR876900A - Manufacture of 1, 3-diols : en fr
  • GB549407A - Improvements in the setting of diamond or sintered or fused carbide or like hard dies : en
  • FR876838A - Improvements to heating devices : en fr
  • GB549400A - Apparatus for preventing the accumulation of ice : en
  • DE728135C - Device for stroboscopic monitoring of the speed equality of three or more rotating bodies : de en
  • DE728020C - Cinema camera with a beam splitting system for recording partial colors : de en
  • US2302055A - Shearing head : en
  • FR876768A - optical element : en fr
  • FR876869A - Improvements to air compressors : en fr
  • DE727949C - Method for fastening cores, in particular sand cores, to one another for casting molds : de en
  • CA408709A - Crusher : en fr
  • DK60335C - Process for the Preparation of 4-Aminomethylbenzolsulfonamide Compounds. : da en
  • GB549384A - Improvements in or relating to change-over valves for controlling exhaust gas ejectors : en
  • US2301969A - Monoamides of polycarboxylic acids : en
  • DE727997C - Electric rod heater : de en
  • FR876722A - Tap : en fr
  • US2302425A - Television apparatus : en
  • US2302589A - Production of thread from viscose : en
  • US2302231A - Protective visor : en
  • US2302646A - Explosively actuated tool : en
  • US2302221A - Shoe press structure : en
  • US2302548A - Vacuum cleaner : en
  • US2302115A - Apparatus for making branch-fitting blanks : en
  • US2302398A - Meat tendering machine : en
  • US2302088A - Gauging device : en
  • US2302241A - Sterilizer : en
  • US2302223A - Burner control : en
  • GB549381A - Improvements in or relating to circuit breakers for electric systems : en
  • GB549299A - Improvements in or relating to the manufacture of sodium monoxide : en
  • US2301967A - Acceleration producing machine : en
  • US2302205A - Drafting apparatus : en
  • US2302418A - Antifreezing device : en
  • AU352641A - Improvements in electric cables : en
  • DK60334C - Process for the preparation of basic esters of di-alicyclic or aryl-alicyclic fatty acids. : da en
  • GB549416A - Improvements in chasing or cutting screw threads : en
  • DE727953C - Compensation loop for unvulcanized rubber sheets or similar tension-sensitive plastic material webs : de en
  • DE728057C - Combat vehicle : de en
  • USD134354S - Design fob a lamp lens : en
  • US2301964A - Method of preparing lactams : en
  • US2302350A - Packaging whole cooked crepes suzette : en
  • US2302424A - Surface treating machine : en
  • AU318841A - Improvements in directional antennas : en
  • AU345341A - Improvements inthe manufacture of hats : en
  • CA408639A - Toy : en fr
  • CA408627A - Belt elevator : en fr
  • US2302083A - Container : en
  • US2302077A - Artificial wool filament and yarn : en
  • US2302397A - Universal defroster connection : en
  • US2302641A - Dispensing pill box : en
  • CA408710A - Hydrocarbon catalytic conversion : en fr
  • DE727469C - Process for the production of structures in groundwater or open water : de en
  • GB549373A - Improvements relating to hermetic seals between refractory metal and vitreous material : en
  • US2302233A - Collapsible clothes stand : en
  • US2302580A - Moccasin : en
  • CA408682A - Elevator zoning apparatus : en fr
  • US2302017A - Printing telegraph system : en
  • US2302465A - Method of preparing the oxidation products of alkylated benzene and cyclohexane compounds : en
  • US2302164A - Welding torch : en
  • US2302160A - Process of producing duplicate sound bands : en
  • CA408740A - Concentrated vitamin production from fish press-liquor : en fr
  • GR10006B - METHOD OF EXPLOITATION AND REFINERATION OF THE POWDER DESTRUCTIONS OF ALL NATURE OF CARBOHYDRATES, LIGNITES, COCS, CARBONS, NUCLEAR CARBONS AND ARGYS AND ARGY. : el en
  • US2302601A - Miniature glass shelter for plants : en
  • US2302114A - Pneumatic bell hoist system : en
  • US2302257A - Price tag envelope : en
  • DE727837C - Device for observation and electrical cutting in the water-filled human bladder or urethra : de en
  • DE727961C - Silencer, especially for internal combustion engines, in which the sound is directed into several chambers at the same time : de en
  • FR876778A - Method of using gaseous fuels for the operation of diesel cycle engines : en fr
  • US2302103A - Chemical processes and products : en
  • US2301931A - Egg cleaning machine : en
  • DE727902C - Process for the production of animal feed : de en
  • US2302500A - Educational device : en
  • US2302528A - Thermostatic control for air conditioning apparatus : en
  • US2302591A - Insect-powder container and dispenser package : en
  • CA408716A - Disc harrow bearing : en fr
  • DE727994C - Plug connection with any number of poles for the transmission of the smallest voltages : de en
  • US2301995A - Railway signaling apparatus : en
  • DE728025C - Arrangement for the automatic control of unmanned aircraft, especially model airplanes : de en
  • DK60341C - Device by Rollers for Clamping Paper Sheets. : da en
  • US2302611A - Treatment of wood : en
  • DE728060C - Sluice gate valve for vacuum apparatus for the treatment of pourable material with means for putting the slide on and off : de en
  • GB549319A - Improvements in or relating to bell ringing apparatus : en
  • US2302320A - Refrigerating apparatus : en
  • US2302634A - Washing machine : en
  • DE727960C - Device for the evaporation of rooms filled with volatile fuels : de en
  • FR876756A - Improvements to gasifiers : en fr
  • FR876796A - Electrolytic process to remove excess brass solder : en fr
  • US2302355A - Micrometer gauge : en
  • GB549304A - Machine for printing upon or coating curved surfaces : en
  • GB549387A - Improvements in or relating to the manufacture of soap : en
  • CA408657A - Electrostatic coating process : en fr
  • CA408685A - Engine speed control system : en fr
  • US2302054A - Automatic variable pitch sheet met : en
  • US2302212A - Charging mechanism for heating apparatus : en
  • US2302247A - Well surveying method and apparatus : en
  • US2302246A - Trailer dolly : en
  • FR876843A - Stepped cylinder : en fr
  • US2302110A - Overload release clutch : en
  • USD134337S - Design foe a building ventilator shield : en
  • US2302438A - Lamp harness and switch : en
  • DE728037C - A needle that can be used as a knitting, necking or auxiliary needle : de en
  • US2301960A - Method and apparatus for forming metal sheets : en
  • US2302254A - Rotary motor : en
  • US2302227A - Method of cracking and shelling nuts : en
  • US2302299A - Hydraulic disruption of solids : en
  • US2302490A - Cleaning device for ink rolls : en
  • US2301975A - Electronic microscope : en
  • US2301989A - Detecting mechanism for fire alarm box : en
  • US2302323A - Ice cream pie cutter : en
  • DE727937C - Frame arrangement on aircraft : de en
  • DE727980C - Magnetic field tube with partially perforated anode : de en
  • US2302091A - Refrigeration : en
  • US2302096A - Applying pigments to sheet material : en
  • USD134367S - Pocket toothbrush or similar article : en
  • DE727899C - Process for electrolytic-anodic blackening of non-ferrous metals that give off dark colored oxides : de en
  • US2302101A - Metal bracing : en
  • US2302412A - Center delivery stoker : en
  • DE727874C - Manufacture of carbon oxysulphide : de en
  • US2302373A - Ignitor firing tube : en
  • US2302567A - Method and means of perforating well casing and the like : en
  • USD134342S - Design for a game board : en
  • FR876721A - Method of underground drilling and apparatus for its implementation : en fr
  • FR876893A - Improvements made to installations, such as in particular the gasifier-engine groups, at one of the points of which the temperature of a fluid having to circulate there is between two limits. : en fr
  • GB549425A - Buttonhole sewing machine : en
  • DE727934C - Dynamic controlled receiver : de en
  • GB549297A - Improvements in or relating to stiffeners for shoes and the manufacture thereof : en
  • FR876823A - Sewing machine in continuous operation of parts in several parts : en fr
  • US2302182A - Bar cutting machine and process : en
  • US2302620A - Method of and means for processing multiple filament thread bundles : en
  • GB549322A - Improvements in or relating to bags of paper or similar sheet material : en
  • FR876789A - Device for driving the thread guide of textile machines, in particular for rayon : en fr
  • US2301951A - Process of molding plates : en
  • FR876765A - Soap holder to keep the soap always dry. : en fr
  • US2302307A - Device for clamping together overlapping members : en
  • US2302026A - Machine tool : en
  • US2302046A - Railway signaling system : en
  • US2301981A - Drill : en
  • DE727993C - Elevation antenna : de en
  • FR876771A - Wooden sole with device for embedding the : en fr
  • DE727880C - Matched amplifier with a device for bandwidth control : de en
  • FR876795A - Improvements to portable perforators used for example in coal mines and quarries : en fr
  • DE727945C - Process for the production of azo dyes : de en
  • DE728088C - Process for connecting pipes and connecting pieces made of cast iron or malleable cast iron using soft soldering : de en
  • FR876743A - Hydrocarbon transformation process : en fr
  • US2302039A - Switching system : en
  • US2302502A - Tractor-mounted implement : en
  • USD134343S - Design for a button : en
  • DE728019C - Device for simultaneous optical copying of an original using several lenses on several copying fields : de en
  • DE728167C - Edging for buttonholes from a long folded band : de en
  • US2302504A - Casing and guide for sewing machines : en
  • CA408696A - Cereal product : en fr
  • DE727999C - Gas generator with a water jacket arranged on the outside of the gasification shaft : de en
  • US2302507A - Variable density window : en
  • US2302581A - Fertilizer : en
  • US2302476A - Electric iron : en
  • US2301921A - Rigid, adjustable, metallic camera structure : en
  • US2301941A - Mineral oil : en
  • US2302269A - Molding machine : en
  • US2302332A - Coating process : en
  • CA408656A - Drink vending machine : en fr
  • US2301979A - Feeding mechanism for peach pitters : en
  • US2302472A - Lawn mower : en
  • US2302488A - Water and like spraying device : en
  • US2302283A - Vehicle parking signal : en
  • US2302439A - Table corner construction : en
  • US2302037A - Printing plate and printing unit made from superpolyurethanes : en
  • US2302277A - Diazotype dry development apparatus : en
  • US2302485A - Stoker : en
  • FR876732A - Electrical appliance for space heating : en fr
  • GB549399A - Improvements in the treatment of starch for bleaching, sterilizing and other purposes : en
  • US2302143A - High frequency voltmeter : en
  • US2302578A - Centrifugal machine : en
  • DE728056C - Camouflage fabric made from ruffled fabrics : de en
  • DE728091C - Pump, compressor or motor for liquid or gaseous working medium : de en
  • DE728116C - Blade segment stiffening : de en
  • DE728186C - Device for the production of rayon threads with irregular titre fluctuations : de en
  • DE728114C - Laengsfalz-bending and pressing machine for the production of the longitudinal seams of can frames : de en
  • DK60345C - Aluminum Soldering Procedure. : da en
  • FR876744A - Letterpress printing process and inks for this process : en fr
  • FR876770A - Coal agglomerates for all uses and in particular for gasifiers : en fr
  • DE728103C - Process for the preparation of tetrahydronaphthalene compounds with an analgesic effect : de en
  • US2302232A - Windshield wiping mechanism : en
  • US2302653A - Closure device : en
  • DE728070C - Brine amplification device working with evaporation for periodically operated air cooling systems : de en
  • US2302461A - Cuttings-conveying mechanism : en
  • CA408705A - Ammonia and aldose sugar reaction product : en fr
  • USD134384S - Design for a dress : en
  • DE728018C - Safety valve : de en
  • FR876848A - Brake device, especially for rail vehicles : en fr
  • GB549434A - Improvements in and relating to lock-nuts or threaded locking devices : en
  • US2302172A - Stoker : en
  • AU275441A - Improvements in or relating to electric measuring apparatus involving amplifiers : en
  • CA408753A - Electrical insulating material : en fr
  • US2302544A - Signaling system : en
  • US2302518A - Device for drawing off welts : en
  • CA408634A - Glove : en fr
  • DE727938C - Loop antenna : de en
  • AU326541A - Improvements in or relating tothe manufacture of plastic materials : en
  • US2302235A - Furnace : en
  • US2302328A - Hydrocarbon conversion : en
  • CA408697A - Plasticizer : en fr
  • CA408735A - Running board for railway cars : en fr
  • CA408637A - Safety pin : en fr
  • US2302363A - Artificial resin and a process for the manufacture of the same : en
  • US2302545A - Hairpin holder : en
  • US2302556A - Display device : en
  • US2302433A - Process of separating waxes from oils : en
  • DE727964C - Process for the production of phosphate layers on metal surfaces : de en
  • DE728147C - Moving image projector especially designed as a suitcase device : de en
  • DE728194C - Method and device for determining the difference in density between two gases : de en
  • GB549423A - Improvements in and relating to lapping machines : en
  • CA408700A - Television signal-translating system : en fr
  • CA408641A - Adjustable chair : en fr
  • DE728174C - Device for conveying suspended matter from a container by means of a pressurized fluid : de en
  • GB549361A - Improvements in or relating to couplings for hose-pipes and other similar pipes : en
  • DK60349C - Multi-part Grinding Wheel for Glass Grinders. : da en
  • US2302574A - Method for producing nut butter : en
  • US2302480A - Hair curler : en
  • AU116114B2 - Method and apparatus for receiving frequency modulated waves : en
  • US2301973A - Method of firing blast furnaces : en
  • US2302214A - Delayed action socket : en
  • US2302403A - Manufacture of resins from naphthalene derivatives : en
  • AU327441A - Making synthetic resins and varnishes therefrom : en
  • DE728110C - Gear hobbing cutter : de en
  • DE728165C - Process for the production of graphite-containing metal bodies : de en
  • US2302652A - Boiler for heating or processing honey or other liquids, etc. : en
  • USD134338S - Design fob a dress : en
  • US2301948A - Automatic brake adjusting mechanism : en
  • FR876712A - Light meter for photography : en fr
  • GR10004B - WHITE PREPARATION PREPARATION. : el en
  • DE728098C - Device for filling and venting the oil pressure brake lines, e.g. B. for motor vehicles : de en
  • FR876791A - Method and installation for carrying out dialysis of the latex : en fr
  • GB549414A - Improvements in electric lightning arresters : en
  • IE16348L - N-(polyhydroxyalkyl)-arylamines : en
  • FR876776A - Geochemical surveys : en fr
  • US2302061A - Gas indicator apparatus : en
  • FR876745A - Advanced device for controlling conveyors : en fr
  • DE728068C - Process for processing acetylene : de en
  • US2302338A - Froth flotation : en
  • US2302530A - Azo dye : en
  • DE728003C - Use of known foils made from gellable pectin substances : de en
  • DE728176C - Device for the elimination of distortion errors in image decomposers with multiple spirals : de en
  • FR876856A - Method and apparatus for electrical measurements for transmission systems : en fr
  • GB549443A - Improvements in domestic stoves : en
  • US2302276A - Connection device of low capacity for concentric cables : en
  • DE727872C - Process for the consolidation of organic fibers : de en
  • DE728094C - Landing direction indicator : de en
  • US2301914A - Electron discharge tube : en
  • US2301968A - Rubber composition : en
  • US2302181A - Wood flooring : en
  • US2302388A - Insecticidal composition containing an amine having one alkoxyalkylene group : en
  • US2302374A - Two-way signal transmission system : en
  • FR876725A - Wood carbonization process and retort for its implementation : en fr
  • DE727942C - Heat-resistant high voltage cable : de en
  • DE727936C - Antenna arrangement : de en
  • GB549348A - Improvements relating to superheated steam installations : en
  • FR876784A - Mixer for supplying combustion engines with all gaseous fuels : en fr
  • FR876863A - Motion transmission device, in particular for measuring devices : en fr
  • DE728189C - Method and device for excavating a glass ribbon from the port : de en
  • CA408713A - Mechanism lubricating means : en fr
  • FR876739A - New combination of directed lighting for all uses and more specifically for passive defense obligations : en fr
  • US2301950A - Door operator : en
  • US2302047A - Building construction : en
  • US2302311A - Electronic system : en
  • GB549308A - Improvements in the preparation and purification of reagents for the treatment of wool : en
  • GB549358A - Improvements in or relating to telegraph apparatus : en
  • FR876742A - Improvements in the construction of cupola furnaces : en fr
  • GB549392A - Improvements in or relating to the production of cellulose derivatives : en
  • US2302170A - Bottle holder : en
  • US2302523A - Bench vise : en
  • US2302234A - Vapor conservation system for bulk storage plants : en
  • USD134346S - Rude disc harrow : en
  • CA408749A - Artificial straw production : en fr
  • US2302169A - Apparatus for freezing bulk materials : en
  • CA408728A - High speed electric relay : en fr
  • FR876862A - Film reel store : en fr
  • CA408693A - Thread winding apparatus : en fr
  • US2302036A - Gas analysis apparatus : en
  • US2302302A - Process and mold for making cast metal boilers for furnaces or other heating units : en
  • US2302145A - Blade holder : en
  • US2302651A - Portioning mechanism : en
  • CA408730A - Light reflecting ceiling : en fr
  • CA408712A - Eyelash curler : en fr
  • AU116105B2 - Improvement in luminescent coating for electric lamps : en
  • US2302203A - Crayon holder : en
  • US2302022A - Process for saccharifying cellulose : en
  • US2302174A - Method for cutting glass : en
  • US2302609A - Alternating-current-direct-current motor circuits : en
  • AU116102B2 - Improvements inthe manufacture of hats : en
  • DE727865C - Chlorate-free luminous set for luminous stars : de en
  • US2302162A - Process for producing guanamine derivatives : en
  • US2302112A - Seed cleaner : en
  • US2302140A - Means for stacking metal goods containers : en
  • US2302273A - Refrigerated faucet : en
  • US2302644A - Road surface : en
  • FR876780A - Low pressure acetylene generator for automotive vehicles and other applications : en fr
  • FR876844A - No-load control for high pressure compressors : en fr
  • US2302168A - Centrifugal separator : en
  • US2302466A - Process of oxidizing cymenes : en
  • US2302138A - Juice extractor : en
  • US2302176A - Floor covering and method : en
  • CA408673A - Building insulating material : en fr
  • US2301918A - Flushing oil : en
  • CA408666A - Electric lamp holder : en fr
  • US2301945A - Socket wrench : en
  • US2302478A - Ski : en
  • US2302224A - Means and method of testing oil : en
  • US2302552A - Method and apparatus for treating lubricating oils : en
  • DE727988C - Control device for short-circuit and compressed air braked trains : de en
  • AU225941A - Improvements in or relating to hand woodworking planes made of metal : en
  • NL94268B - : en
  • US2302281A - Refining of oil : en
  • US2302514A - Bedspring and the like : en
  • US2302154A - Smoking appliance : en
  • US2302392A - Receptacle : en
  • US2302569A - Vehicle body : en
  • USD134352S - Design for a lamp lens : en
  • US2302097A - Swing spout device for dispensing liquids : en
  • US2302312A - Transmission : en
  • US2302157A - Process for the production of useful fuel gas : en
  • US2302435A - Brake cylinder device : en
  • DE728052C - Vacuum sealing machine : de en
  • GB549350A - Improvements in or relating to bucket mountings for mechanically propelled tipping trucks : en
  • DE728010C - Control device for water brakes : de en
  • US2302192A - Emergency power system : en
  • US2302426A - Extension bracelet : en
  • USD134383S - Design for a dress : en
  • GB549429A - Improvements relating to rotary metal shearing machines : en
  • DE727352C - Roll film camera for two formats : de en
  • DE728000C - Process for breaking down roasted hemp fiber : de en
  • AU347741A - Transmission of picture telegraphy and like signals : en
  • US2302376A - Method of and apparatus for use in carding artificial teeth : en
  • DE728079C - Process for the production of highly porous chlorinated rubber : de en
  • US2301943A - Working machine with flywheel of variable inertia moment : en
  • DK60344C - Procedure with associated apparatus for inlet of pistons, cylinders and bearings or the like by sliding affected parts of combustion power machines, pumps or similar machines. : da en
  • US2302067A - Device for conveying sheets of paper : en
  • US2301946A - Printing device for scales : en
  • FR876804A - Insulating devices or screens, seat holders or not, fixed or adjustable, eliminating any intimate or bodily contact between a practitioner and a patient : en fr
  • DK60346C - Procedure for the manufacture of car bodies, in particular for motor vehicles. : da en
  • FR876779A - Device using pressure supplied by the engine to control the automatic opening and closing of the fuel supply : en fr
  • GB549346A - Improvements in or relating to protective arrangements for electric lamps : en
  • FR876736A - Automatically variable stroke winder wire guide : en fr
  • FR876882A - Oscillograph tube : en fr
  • GB549379A - Improvements in or relating to means and method of heading and pointing blanks : en
  • DE728179C - Electrical resistance : de en
  • FR876746A - Improvements to pneumatically operated shell molding machines : en fr
  • DE728148C - Packaging and shipping container for film rolls : de en
  • DE728178C - Wall socket for house installations : de en
  • FR876777A - Cheeks for lamellar packages of electrical machines : en fr
  • GB549310A - Improvements relating to change speed gearing : en
  • FR876809A - Fastening system for buckles : en fr
  • FR876714A - Improvements made to natural silk spinning : en fr
  • US2302428A - Apparatus for separating constituents of oils and waxes : en
  • US2302295A - Engine starter gearing : en
  • US2302217A - Door for broiler drawers : en
  • US2302558A - Treatment of smokeless powder : en
  • USD134334S - Design fob a casserole : en
  • US2301932A - Heat treatment of ferrous metals : en
  • US2302628A - Smoke consumer : en
  • US2301962A - Closure for jars and similar containers : en
  • US2302010A - Dustless rock drill : en
  • US2302471A - Calk device : en
  • FR876868A - Magneto ignition : en fr
  • DE728032C - Process for the production of pipes from optionally fibrous cement paste : de en
  • FR876898A - Paper metallization process and products obtained : en fr
  • GB549363A - Electrical musical instrument : en
  • DE728089C - Single or multi-roller mill : de en
  • GB549353A - Manufacture of substituted ethylenes : en
  • GB549313A - Improvements in or relating to the lubrication of multi-cylinder two-stroke cycle internal combustion engines : en
  • NL96289B - : en
  • FR876800A - Process and equipment for cold sheet gluing all textiles : en fr
  • US2302337A - Signal attachment for fishing poles : en
  • FR876701A - : fr
  • FR876818A - Spinning process for fine rayon threads : en fr
  • FR876705A - Improvements to electric heating devices : en fr
  • US2302344A - Window jack : en
  • FR876859A - Method and device for drying fabrics without tension : en fr
  • DE727985C - Device for increasing the conveying weight of the steam circulation pump of indirectly heated steam generators : de en
  • USD134350S - Design for a lamp lens : en
  • FR876805A - Removable and mobile device with illuminating or luminous element, fixing more specifically, in all positions, on the phalanges of the fingers : en fr
  • GB549402A - Improvements in protective containers for use in heat treatment processes : en
  • DE728192C - Replacement device for gramophone needles : de en
  • US2302033A - Signaling system : en
  • FR876811A - Removable lock for cycles and motorcycles : en fr
  • FR876750A - Treatment of wool and other materials and reagents suitable for this purpose : en fr
  • GB549431A - Improvements in and relating to coolers, condensers and the like : en
  • FR876821A - Device for receiving several kinds of signals transmitted with different amplitudes : en fr
  • FR876895A - Improvements to processes for preparing phenolphthalein compounds and improved compounds produced by these processes : en fr
  • FR876826A - Electrical installation for time-dependent control of physical quantities : en fr
  • US2302230A - Method and apparatus for measuring the power factor of electrical devices : en
  • DE728134C - Method and device for the continuous taking of samples from gases liquefied under pressure, in particular gas mixtures : de en
  • US2301938A - Refrigerator : en
  • US2302032A - Door latch structure : en
  • US2302410A - Desk calendar : en
  • US2301937A - Classification : en
  • DE727944C - Connection of contacts with their carriers by electrical welding : de en
  • GB549359A - An improved scaffold clamp : en
  • USD134378S - Design for a textile fabric : en
  • AU116107B2 - Improvements in electric cables : en
  • US2301997A - Advertising merchandising wrapper : en
  • US2302342A - Decorated material and trimming : en
  • US2302211A - Knitted fabric and method of knitting : en
  • US2302484A - Adjustable hinge : en
  • US2302108A - Temperature responsive device : en
  • NL93696B - : en
  • USD134355S - Luminaire for blackout lighting : en
  • US2302394A - Electric switch : en
  • FR876726A - Metal clip for bottles and all other uses : en fr
  • CA408626A - Laundry press : en fr
  • US2302043A - Vanity case : en
  • DE727987C - Control cams adjustable during rotation : de en
  • US2302419A - Means for dicing fruit : en
  • US2302066A - Textile product : en
  • US2302565A - Air duct construction : en
  • US2302440A - Switch assembly : en
  • US2301928A - Control system for industrial vibrating machinery : en
  • US2302201A - Liquid measuring and dispensing apparatus : en
  • US2302041A - Flexible doll head with eyes : en
  • US2302102A - Four course radio beacon : en
  • FR876723A - Stool enhancements : en fr
  • US2302068A - Sustaining rotor for aircraft : en
  • US2302137A - Pallet and lifting device therefor : en
  • US2302331A - Photofinish device : en
  • US2302053A - Container coating machine : en
  • US2302386A - Process for dewaxing oil : en
  • US2302345A - Production of alcohols of the acetylene series : en
  • US2302413A - Seed sower and fertilizer distributor : en
  • DE728151C - Device for the automatic control of color filters and screens in copier machines with the help of an advanced control strip : de en
  • DE727624C - Process for the splitting pressure hydrogenation of asphalt-containing heavy oil and residues : de en
  • DE728043C - Process for sensitizing photographic silver emulsions : de en
  • US2302090A - Gauging device : en
  • US2302132A - Balancing press platen : en
  • US2302199A - Wrench : en
  • DE728105C - Cold-formed, corrosion-resistant objects made of ferritic-austenitic or austenitic chromium-nickel-iron alloys : de en
  • US2302437A - Impeller blade with mounting devices : en
  • FR876822A - Device for the production of converging sound fields : en fr
  • DE728102C - Process for the separation of ammonia from carbonic acid and / or hydrogen sulfide : de en
  • FR876837A - Device for laying an insulating tape parallel to the axis on a conductor : en fr
  • AU116100B2 - Improvements in or relating tothe manufacture of plastic materials : en
  • US2302171A - Loose-leaf binder : en
  • US2302261A - Table for envelope-treating machines : en
  • US2302062A - Liquid pressure marking device : en
  • US2302078A - Cooling nozzle for bottles and other glass containers : en
  • US2302159A - Insect repellent : en
  • GB549390A - Improvements in or relating to a process of making resinous material and the resin resulting therefrom : en
  • US2302423A - Electrically controlled oiling system : en
  • CA408664A - Electric plug cap : en fr
  • CA408727A - Electronic tube : en fr
  • US2302123A - Arrangement for synchronizing oscillations : en
  • USPP555P - Freesia plant : en
  • CA408632A - Indicator system : en fr
  • US2302657A - Process of dewaxing oils and deoiling the wax : en
  • US2302561A - Film mounter : en
  • NL53546C - : en
  • CA408642A - Electric lamp : en fr
  • DE728063C - Loading device : de en
  • US2302144A - Method of making transversely flexible corrugated paper : en
  • US2301936A - Printing calculating machine : en
  • US2302268A - Interior cooker construction for : en
  • US2302285A - Circuit for controlling fluorescent lamps : en
  • US2302606A - Sewing machine lubricating means : en
  • GB549360A - Improvements in electric motor speed regulating systems : en
  • CA408683A - Vapour electric device : en fr
  • US2302248A - Combined flashlight and electric circuit tester : en
  • DE728106C - Method for the excitation of electron dance vibrations : de en
  • DE728160C - Chilled cast iron : de en
  • DK60342C - Device by Fertilizer spreaders. : da en
  • CA408701A - Periodic wave repeater : en fr
  • DE728181C - Piezoelectric flexural oscillator : de en
  • CA408630A - Stitch gauge : en fr
  • DE727965C - Device for autogenous cutting of steel mill blocks when hot : de en
  • US2302152A - Screen printing machine : en
  • US2302177A - Process for separating wax from oil : en
  • US2302636A - Cyclic acetals of ketosteroids and a method of making the same : en
  • DE727998C - Cross-field type welding dynamo for simultaneous supply of two workplaces : de en
  • US2302135A - Derivatives of the cyclopentanopolyhydrophenanthrene series and process of producingsame : en
  • US2302522A - Degreasing apparatus : en
  • US2302539A - Cap for collapsible tubes : en
  • US2302643A - Method and composition for treating metals : en
  • US2302071A - Signaling system : en
  • DE727846C - Metal electrode for pH measurement : de en
  • DE727946C - Process for the preparation of water-insoluble monoazo dyes : de en
  • US2302638A - Window screen : en
  • CA408699A - Television synchronizing and control system : en fr
  • US2302619A - Television receiver : en
  • DE727353C - Device for obtaining white picture borders in automatic photography : de en
  • DE728021C - Process for developing and fixing at the same time : de en
  • FR876709A - Process for manufacturing cellulose of a very high degree of purity : en fr
  • FR876728A - Crusher sorter for gasifier charcoal : en fr
  • FR876887A - Fixed corrective cam crank operating mechanism : en fr
  • GB549333A - Improvements relating to pumps for hydraulic vehicle brake systems : en
  • US2302204A - Process for the manufacture and purification of uric acid : en
  • US2302399A - Thermal relay : en
  • US2302210A - Navigation of aircraft, ships, or the like : en
  • DE727957C - Electromagnetic pickup : de en
  • US2301942A - Timing mechanism : en
  • US2302316A - Collar fastener : en
  • DE727869C - Process for the preparation of oxy compounds of the iso- and heterocyclic series : de en
  • CA408704A - Smokeless powder : en fr
  • CA408645A - Soap holder : en fr
  • US2302334A - Telephone system : en
  • US2302453A - Ambulance stretcher : en
  • US2301953A - Air translating apparatus : en
  • US2302605A - Engine starter gearing : en
  • US2302187A - Method of separating liquids and gases : en
  • DK60347C - Rear motor vehicle. : da en
  • US2302305A - Finishing composition : en
  • US2301924A - Circuit controller for signaling means : en
  • US2302420A - Welding machine : en
  • US2302120A - Grinding and polishing apparatus : en
  • USD134379S - Design for a scarf or similar article : en
  • FR876731A - New non-elastic fabric glove : en fr
  • US2302577A - Polymerization of rosin and rosin esters : en
  • US2301985A - Air louver for high velocity ventilation : en
  • US2302215A - Material feeding and crushing apparatus : en
  • US2302327A - Automatic consistency control means : en
  • US2302335A - Carrying scraper : en
  • US2302532A - Separation of bodies of different physical properties : en
  • US2302525A - Chicken picker and cleaner : en
  • US2302264A - Steam generating attachment for electric irons : en
  • US2301957A - Fluid coupling and friction clutch mechanism : en
  • USD134368S - Embroidered trimming or similar article : en
  • GB549366A - Process for weighting artificial textile materials : en
  • NL53486C - Protection device for suspended structures in the event of cable breakage : en nl
  • US2302291A - Positioning means for heater pots : en
  • US2302468A - Process of oxidizing menthanes and products therefrom : en
  • US2302541A - Lawn broom : en
  • US2302568A - Sheet holder : en
  • US2302448A - Refrigerative compressor : en
  • US2302245A - Carburetor unloader : en
  • US2302446A - Club buffet set-up service device : en
  • USRE22223E - Valve for venting air from : en
  • DE728126C - Resistance for high frequencies : de en
  • CA408726A - Maize explosive treatment : en fr
  • GB549404A - Improvements in or relating to tool-setting indicators for machine tools : en
  • DE727958C - Press for straw : de en
  • US2302094A - Mold for molding pickers : en
  • US2302188A - Bag holder : en
  • US2302352A - Refining mineral oils : en
  • US2302309A - Stabilization of wet processed starch pastes with urea-formaldehyde : en
  • US2302173A - Air control means for traveling grate stokers : en
  • US2302237A - Garment bagging apparatus : en
  • US2302380A - Door lock : en
  • US2302614A - Ripper : en
  • GB549327A - Improvements in and relating to the casting of metals : en
  • FR876704A - Electrical cable installation under pressure : en fr
  • US2302179A - Method of printing transparent adhesive tape : en
  • USD134336S - Design fok a sprayer pimp head : en
  • US2302161A - Arrangement for electromagnetic deflection of cathode rays : en
  • USD134358S - Design for a hair clipper : en
  • AU151041A - Improvements in or relating to transmission belts : en
  • CA408722A - Rail sander mechanism : en fr
  • CA408723A - Rail sanding relay : en fr
  • CA408718A - Radiator air vent and overflow : en fr
  • US2302538A - Closure cap for collapsible or rigid tubes : en
  • US2302072A - Warning signal for refrigerators and the like : en
  • US2302298A - Cooling system for engines : en
  • US2301994A - Trailer : en
  • US2302458A - Telemetric apparatus : en
  • DE728168C - Washing machine with vertical friction shaft and an oil duct above the friction shaft bearing : de en
  • FR876894A - Process for treating normally gaseous hydrocarbons : en fr
  • US2302430A - Process of separating oil and waxes : en
  • CA408711A - Hydrocarbon conversion apparatus : en fr
  • US2302045A - Article holder : en
  • NL53441C - : en
  • US2302534A - Pressure controlled electric switch : en
  • CA408719A - Mower : en fr
  • US2301961A - Signaling system : en
  • US2302557A - Rubber product : en
  • US2302564A - Insulated resistor making process : en
  • US2302406A - Fitting for use in the construction of display devices : en
  • AU116099B2 - Improvements in directional antennas : en
  • NL53467C - Bicycle chain guard : en nl
  • US2302240A - Water filter : en
  • US2302319A - Solvent extraction of oils : en
  • US2302623A - Continuous depth filter having an exterior cylindrical retaining wall : en
  • DE728013C - Setting mechanism for ten-key adding machines or similar machines with setting wheel carts : de en
  • FR876733A - Internal combustion turbine : en fr
  • FR876807A - Manufacturing process for dynamo bodies for lighting cycles, motorcycles, automobiles and all vehicles : en fr
  • DE727896C - Potato harvester with conveyor discs rotating over the share on both sides : de en
  • DE728038C - Process for the production of copolymers : de en
  • FR876751A - Process for preparing hydrocarbons from benzol : en fr
  • CA408661A - Glass of a high softening point : en fr
  • US2302288A - Polyethylene ureas : en
  • US2302588A - Classification : en
  • US2302511A - Carbohydrates and process of modifying the absorbability thereof : en
  • US2302546A - Electric switch : en
  • USD134361S - Design for a bgjly or similar article : en
  • DE728051C - Device for the meshing of perishable liquids in connection with a filling device : de en
  • US2302057A - Apparatus for making spring packing : en
  • CA408662A - Refractory glass : en fr
  • CA408687A - Protective discharge device mounting : en fr
  • FR876841A - Maneuvering device for pressurized fluid brakes with several piping networks : en fr
  • GB549336A - Improvements in or relating to gauging devices : en
  • US2302381A - Centrifugal separator : en
  • US2301977A - Drill : en
  • US2301993A - Oil seal : en
  • DK60343C - Diving piston for heavy combustion engines. : da en
  • GB549339A - A method of and means for shuttering for the casting in situ of floors, roofs or walls in concrete or similar material : en
  • CA408688A - Conveyer : en fr
  • GB549331A - Improvements in and relating to apparatus for use in training aircraft pilots : en
  • US2302510A - Material and method for cleaning and coating metal : en
  • US2302615A - Briquette for the addition of molybdenum to ferrous alloys : en
  • GB549323A - Improvements in hydraulic power transmission systems : en
  • GR10005B - OTHER PROVISIONS TO IMPROVE THE QUALITY OF DRY ELECTRICAL BATTERIES. : el en
  • FR876877A - Purse of leather, imitation leather or similar material : en fr
  • GB549410A - Improvements in or relating to continuous combustion gas turbines : en
  • DE728084C - Gas pressure gauges, in particular air pressure gauges for measuring altitude : de en
  • US2302213A - Electric circuits for lamp regulation : en
  • CA408715A - Pressure casting machine nozzle shut-off : en fr
  • CA408708A - Airplane rib stitching clip : en fr
  • AU116106B2 - Moulded coil former : en
  • DE728183C - Flat weft knitting machine with a device for the temporary coupling of deckers : de en
  • FR876858A - Support stand for bicycles : en fr
  • FR876860A - Pulverized fuel burner for stationary or mobile devices : en fr
  • FR876881A - Process for manufacturing a molded food product from flour : en fr
  • FR876817A - Cartridge for roll film without take-up spool : en fr
  • GB549314A - Improvements in or relating to snap action electric switches : en
  • US2301999A - Traffic signal controller : en
  • US2302128A - Counting device : en
  • FR876820A - Test bench for engines, in particular for altitude engines : en fr
  • DE728133C - Device for the dimensionally accurate separation of bulk goods with moving antechamber : de en
  • FR876878A - Improvements to gasifiers or downflow generators : en fr
  • DE728136C - Counter with zero setting device : de en
  • FR876754A - Process for making plastic non-metallic materials of electrical resistance and electrical resistances obtained by this process : en fr
  • GB549437A - Improvements in hydraulic power transmission systems : en
  • DE728132C - Woltmann knife for liquids : de en
  • FR876808A - Safety filter against backfire in the pipes of internal combustion engines also forming a variable orientation connection : en fr
  • GB549421A - Improvements in or relating to relays for protecting electric circuits : en
  • DE728033C - Control device for feeding plate dryers for lignite : de en
  • FR876741A - Process for converting hydrocarbon oils : en fr
  • GB549354A - Improvements in and relating to rotary steering : en
  • GB549383A - Improvements in or relating to the cylinders and crank cases of internal combustion engines : en
  • GB549382A - Improvements in or relating to the charging and cooling of internal combustion engines : en
  • DE727850C - Pesticides : de en
  • FR876769A - Cast iron manufacturing process : en fr
  • GB549316A - Improvements in or relating to weighing apparatus : en
  • US2301998A - Gasket material : en
  • US2302379A - Belt end swaging machine : en
  • DE727887C - Cleaning system for gas generators : de en
  • US2302163A - Manufacture of welded tubing : en
  • US2302341A - Clasp : en
  • DE728107C - Incandescent cathode with activated surface for gas-filled discharge tubes : de en
  • US2302536A - Liquid level indicator : en
  • DE727973C - Computing device : de en
  • US2302384A - Parasiticidal preparation : en
  • US2302441A - Stack switch : en
  • GB549307A - Water-resistant finishes for textile fabrics : en
  • FR876794A - Improvements to portable electric punches : en fr
  • US2302087A - Blocking-layer rectifier : en
  • US2302339A - Separating fastener : en
  • US2302353A - Variable speed control mechanism : en
  • US2302647A - Explosively actuated tool : en
  • US2301971A - Process of producing nu-phenyl 2-amino-butadienes 1,3 : en
  • US2302098A - Automatic turn indicating switch : en
  • FR876861A - Intake device for rotary valve for two-stroke engine : en fr
  • US2302524A - Advertising display : en
  • CA408724A - Release valve : en fr
  • DE728024C - Fog flag generator for airfields : de en
  • GB549394A - Improvements in and relating to conveying means : en
  • US2302351A - Control mechanism for partrevolution shafts : en
  • DK60348C - Mechanism for stabilizing the front wheel of bicycles while riding. : da en
  • US2302222A - Shoe press last : en
  • US2302562A - Control means : en
  • US2302012A - Domestic appliance : en
  • US2302279A - Bicycle fork bending tool : en
  • NL53489C - Oxygen treatment device : en nl
  • USD134348S - Combined hoe and rake head : en
  • CA408733A - Fruit treating apparatus : en fr
  • FR876759A - Metallization process in particular for the aluminization of iron articles : en fr
  • DE728067C - Process for obtaining a fur from textile fibers : de en
  • US2302452A - Fuel distributing means : en
  • FR876832A - Adjustable electrodynamic mechanism : en fr
  • FR876896A - Washing paste : en fr
  • FR876727A - Improvements to mixers and the like : en fr
  • FR876883A - Process for the manufacture, in one piece, of felt caps having the cap projecting from the strip : en fr
  • AU116101B2 - Making synthetic resins and varnishes therefrom : en
  • DE728173C - Apparatus for carrying out heat-exchanging reactions : de en
  • US2302075A - Slide fastener manufacture : en
  • US2302255A - Concrete mixer skip : en
  • DE728109C - Method for operating internal combustion engines with further expansion in downstream expansion stages : de en
  • USD134351S - Design for a lamp lens : en
  • DE728069C - Process for the production of therapeutically valuable gold compounds from keratin breakdown products : de en
  • US2301974A - Method of dead banking blast furnaces : en
  • US2302155A - Visual record selector and indicator system : en
  • US2302318A - Plural syllable sound originator : en
  • DE728066C - Method and device for the production of tension coil springs with particularly high pre-tension : de en
  • US2301916A - Fuel pump : en
  • US2302405A - Form retaining garment : en
  • DE728138C - Electrically operated self-seller : de en
  • GB549369A - Improvements in or relating to the removal of creases from fabric : en
  • US2302290A - Telegraph signal formulating mechanism : en
  • CA408691A - Weft end control means : en fr
  • FR876764A - Improvements to the products that make up the cooling mixtures, making these products non-hygroscopic : en fr
  • GB549391A - Improvements in and relating to the magnetic purification of fluids : en
  • US2302377A - Air brake : en
  • US2302359A - Securing means : en
  • US2302250A - Double magnet snap action : en
  • US2302443A - Teat-cup construction : en
  • DE729249C - Method and device for the uninterrupted production and aftertreatment of artificial silk cakes : de en
  • FR876885A - Device for mounting electrodes in arc furnaces : en fr
  • AU116113B2 - Improvements in or relating to cutting bits for boring wood : en
  • FR876738A - New process for laying electric wires : en fr
  • FR876831A - Film reel holder in a camera : en fr
  • CA408686A - Network distribution system : en fr
  • CA408738A - Explosive container : en fr
  • GB549321A - Improvements in reciprocating steam engines : en
  • GB549442A - An improved cigarette holder : en
  • US2302473A - Holder for lipsticks and the like : en
  • FR876772A - Adjustable spacing punches for fixing the screeds to packaging straps : en fr
  • US2302463A - Process of oxidizing menthanes : en
  • FR876842A - Hydraulic brake device for vehicles : en fr
  • FR876890A - Improvements to the shrinking of shrink-wrapped concrete pipes : en fr
  • GB549306A - Improvements in the manufacture of keto-alcohol acetates : en
  • GB549398A - Improvements in or relating to flame arresters for use with compression ignition engines : en
  • CA408650A - Metal pellet forming apparatus : en fr
  • US2302000A - Switching mechanism : en
  • US2302391A - System and apparatus for lifting fluid from wells : en
  • DK60339C - Sealing strip for Doors. : da en
  • US2302014A - Pressure-controlled operating apparatus : en
  • US2302040A - Rotary sprinkler head : en
  • US2302597A - Camera with built-in photoelectric exposure meter : en
  • DE727969C - Device for holding and securing items that can be hung on the handlebar, such as briefcases and the like. like : de en
  • DE728096C - Back wall for streamlined vehicles, especially omnibuses : de en
  • DE728128C - Arrangement with electric headlight arc lamps for automatic shutdown of the arc circuit : de en
  • DE728082C - Attachment of the reeds of reed frequency meters : de en
  • FR876761A - Method for placing photos or the like on album sheets or the like and device for carrying out said method : en fr
  • US2302361A - Filler for vinyl resin plastics : en
  • US2302315A - Cranking time limiter for internal combustion engines : en
  • US2301947A - Method and apparatus for separating out admixtures from molten metal baths : en
  • US2301988A - Dispensing closure for sterile liquid containers : en
  • US2302383A - Solvent extraction of normally liquid hydrocarbons : en
  • US2302495A - Brake : en
  • US2302613A - Lamp : en
  • US2302141A - Re-forming device for distributor body housings : en
  • US2302600A - Process of purifying tar acids : en
  • US2302616A - Briquette for the addition of tungsten to ferrous alloys : en
  • DE728113C - Winch for cutting machines : de en
  • US2301940A - Method of manufacturing electronic tubes : en
  • US2302455A - Combination letter, bill, receipt, and envelope : en
  • DE728071C - Method and device for the direct extraction of metal, in particular iron, from fine-grained ores or metal compounds : de en
  • DE728120C - Two-part joint insert for the longitudinal joints of concrete deck slabs : de en
  • DE728155C - Method and device for separating foam and clear water in a settling tank : de en
  • FR876865A - Device for switching on dynamos for lighting bicycles : en fr
  • US2302058A - Marking machine : en
  • US2302142A - Toy car : en
  • US2302356A - Swinging cutoff saw : en
  • US2302603A - Automatic electric regulator : en
  • FR876812A - Mixer-carburettor to use the exhaust gases in addition to supply internal combustion engines : en fr
  • US2302127A - Snow remover : en
  • DE725964C - Empties removal for automatic firearms, especially for aircraft : de en
  • DE727935C - Arrangement for external control and frequency multiplication of decimeter waves using magnetic field tubes : de en
  • DE728139C - Device for warming up the cooling water of an internal combustion engine : de en
  • GB549357A - Improvements in and relating to collapsible boxes and cases : en
  • GB549440A - Selecting systems particularly for automatic telephones : en
  • CA408684A - Refrigeration apparatus : en fr
  • US2302100A - Method of forming spectacle temples : en
  • CA408676A - Circuit interrupter : en fr
  • AU116125B2 - Improvements in tubular rivets : en
  • US2302220A - Shoe press structure : en
  • US2302515A - Power transmission unit : en
  • US2302505A - Method of manufacturing welded aluminum articles : en
  • CA408689A - Heat exchange device : en fr
  • CA408695A - Life saving lamp for use at sea : en fr
  • NL53383C - : en
  • US2301952A - Condensation products of : en
  • US2302393A - Method of concentrating steep water : en
  • DE727972C - Longitudinal beam for exercise bomb : de en
  • US2301955A - Electrical discharge apparatus : en
  • CA408670A - Dynamo-electric machine cooling arrangement : en fr
  • CA408748A - Staple fibre yarn production : en fr
  • CA408744A - Radio receiving circuit : en fr
  • CA408734A - Make and break contact : en fr
  • NL53410C - : nl
  • US2302130A - Absorption system : en
  • US2302354A - Method and apparatus for : en
  • US2302444A - Reticle assembly for gun sights and the like : en
  • US2302585A - Antirattling clip : en
  • FR876813A - Roll film camera with frame for various kinds of film : en fr
  • GB549300A - Improvements in or relating to fluid pressure servo devices : en
  • IE17487L - Coiling wire on tubes : en
  • US2302314A - Automatic poultry feeding apparatus : en
  • US2302008A - Dispensing device : en
  • US2302432A - Apparatus for separating waxes from oils : en
  • USD134385S - Design fob a dress : en
  • FR876828A - Method and apparatus for the total vaporization of liquefied gases, with which explosive elements are mixed : en fr
  • US2301978A - Frame assembly for diaphragmoperated valve : en
  • US2302093A - Takeup mechanism for looms : en
  • CA408741A - Safety circuit for cathode ray tubes : en fr
  • US2302034A - Coal mining machine : en
  • US2302099A - Tire tube tester : en
  • CA408654A - Spark plug electrode : en fr
  • CA408739A - Container opening key : en fr
  • CA408678A - Selenium rectifier : en fr
  • FR876766A - Metal nozzle for introducing combustion air into the gasifiers : en fr
  • SE105910C1 - : en
  • CA408651A - Liquid filling apparatus : en fr
  • US2302074A - Resilient engine mount : en
  • CA408674A - Polyvinyl acetal resin stabilization : en fr
  • US2301923A - Method of and apparatus for slag control : en
  • US2302587A - Telephone trunking system : en
  • US2302482A - Compressed air system : en
  • CA408629A - Dual wheel brake : en fr
  • DE728140C - Speed limiter for internal combustion engines : de en
  • DE728047C - Device to prevent the formation of ice on aircraft parts : de en
  • GB549432A - Improvements in and relating to hair curling devices : en
  • AU116103B2 - Transmission of picture telegraphy and like signals : en
  • US2302621A - Screw stick : en
  • GB549351A - Improvements in thiamin compositions : en
  • CA408717A - Knitted metallic cable-like formation : en fr
  • DE728039C - Conveyor chain : de en
  • NL53388C - : en
  • US2302469A - Continuous pasteurization : en
  • US2302630A - Pleating of drapes, etc. : en
  • FR876875A - Improvements in the manufacture of metal filing cabinets : en fr
  • NL53366C - : en
  • DK60350C - Automatic firearm. : da en
  • FR876803A - Automatic safety valve constituting at the same time a rational air distributor for gas-operated engines, whatever it may be, at low pressure : en fr
  • AU116104B2 - Noise reduction signalling system : en
  • USD134366S - Stamped textile fabric or similar article : en
  • US2302056A - Seed planter : en
  • US2302477A - Tractor mounted implement : en
  • US2302610A - Automatic feeder for two-roll mill : en
  • US2302479A - Spring structure : en
  • US2302156A - Process and apparatus for the production of useful fuel gas : en
  • US2302594A - Treatment of wood : en
  • US2301984A - Implement for inserting firing pin springs : en
  • USD134371S - Design fok a plane : en
  • US2302306A - Fluid delivery gun : en
  • CA408679A - Vapour electric device : en fr
  • NL53419C - Process for the preparation of an egg yolk substitute : en nl
  • US2302369A - Oscillation generation system : en
  • DE727967C - Holding iron for rivets that are difficult to access, especially for aircraft construction : de en
  • FR876730A - Process for cleaning, descaling and protecting boilers, piping or other and equipment for its implementation : en fr
  • DE728111C - Welded self-supporting car body for motor vehicles : de en
  • DE728141C - Synchronization device for internal combustion engines : de en
  • DE728180C - DC-DC converter : de en
  • FR876824A - Elastic coupling for articulated shafts centered in relation to each other : en fr
  • GB549337A - Seals for preventing fluid leakage along rotating shafts and the like : en
  • GB549352A - A process for the production of monohydric alcohols : en
  • DE728035C - Protective gaiters made from a piece of inelastic material : de en
  • US2302554A - Radiation pyrometer : en
  • US2302049A - Measuring and control method and apparatus : en
  • US2302051A - Refrigerating apparatus : en
  • US2302151A - Vacuum breaker : en
  • USD134330S - Design for a table : en
  • US2302595A - Ammunition belt for machine guns : en
  • US2302637A - Hydraulic power lift : en
  • GB549413A - Detachable air heater for domestic furnaces : en
  • US2302447A - Compressor valve : en
  • DE727975C - Rolling out two or more seamless tubes at the same time : de en
  • US2302294A - Process for the separation of phenol from phenylphenols : en
  • US2302624A - Burner control apparatus : en
  • FR876855A - Device for controlling tools : en fr
  • FR876871A - Condenser for deflecting cathode rays : en fr
  • FR876715A - Improvements to wooden louvers : en fr
  • GB549397A - Improvements in or relating to apparatus for feeding cut tobacco : en
  • US2301925A - Razor blade magazine holder : en
  • US2302267A - Lamp shade : en
  • FR876724A - Improvements to low pressure regulators : en fr
  • US2302617A - Plumbing fitting : en
  • US2302608A - Azeotropic distillation : en
  • FR876830A - Electric dust collector mounted on a motor vehicle operating on generator gas and intended for the purification of said gas : en fr
  • US2302219A - Infinite period seismometer : en
  • DE727974C - Device for forming pipes from clay or the like. : de en
  • FR876827A - Method and device for casting compound ingots : en fr
  • GB549320A - Electric heating apparatus for liquids or foods containing liquids : en
  • FR876740A - Manufacturing process for butadienes : en fr
  • FR876785A - Low pressure acetylene generator : en fr
  • US2302011A - Player attachment for pianos : en
  • GB549377A - Improvements relating to self-locking nuts : en
  • FR876717A - Stamp for bicycles : en fr
  • FR876757A - Process for the direct production of steel and iron from ores : en fr
  • GB549380A - Improvements in and relating to linear dimension and micrometer gauges : en
  • US2302121A - Ethers of aliphatic polyhydroxy substances : en
  • US2302625A - Electrical timing apparatus : en
  • AU349341A - Noise reduction signalling system : en
  • US2302409A - Door lock construction : en
  • CA408750A - Thermostat : en fr
  • GB549417A - Improvements in and relating to airscrew blades : en
  • DE728078C - Hair curler for flat curlers : de en
  • GB549445A - Improvements relating to machine tools : en
  • US2302009A - Transmission system for statistical data : en
  • FR876798A - Stretch cylinder in width for fabric strips : en fr
  • GB549405A - An improved drying device with transverse ventilation for material moving in several separate layers on conveyor bands : en
  • DE728131C - Valveless piston compressor or machine operating according to the same principle with a rotating piston housing and with this rotating working piston that moves back and forth at the same time : de en
  • DE728137C - Abruptly switched odometer : de en
  • DE728171C - Process for treating textile goods with peroxide-containing liquors : de en
  • US2302599A - Strap or handle for bags and the like : en
  • DE727235C - Electron tube arrangement for fanning ultra-high frequency electromagnetic vibrations : de en
  • DE727962C - Infinitely variable transmission with power split and reunification through a differential gear : de en
  • GB549375A - Improvements in degreasing or cleansing agents : en
  • US2302582A - Electric switch : en
  • CA408731A - Weatherstrip : en fr
  • US2302470A - Material and method for radiography : en
  • US2302368A - Shooting jacket : en
  • US2302081A - Signaling system : en
  • US2302191A - Fishing rod : en
  • US2302586A - Grating : en
  • USD134340S - Design fob a dress : en
  • US2302197A - Combustion control for stoves and furnaces : en
  • US2302635A - Streamlined locomotive : en
  • US2301983A - Coated ferrous article and method of making : en
  • AU356741A - Improvements in or relating to devices comprising an electric gaseous discharge tube : en
  • US2302218A - Parking indicator : en
  • US2302013A - Starter gear : en
  • US2302202A - Closed car ventilation : en
  • USD134360S - Design for a partition strip : en
  • US2302196A - Pipe cleaning machine : en
  • CA408756A - Continuous metal casting process : en fr
  • US2302346A - Treatment of heads : en
  • US2302592A - Alternating current electric circuit breaker of the gas blast type : en
  • DE728188C - Process for the preparation of concentrated solutions of diiodotyrosine : de en
  • DK60337C - Voltage-dependent Mass resistance for overvoltage protection. : da en
  • GB549318A - Improvements in current limiting arrangements for shunt motors : en
  • CA408663A - Wound core induction apparatus : en fr
  • FR876884A - Method for electrically purifying generator gases and the like from low-tar fuels : en fr
  • CA408638A - Tube mill lining : en fr
  • US2302200A - Art of packing cheese : en
  • US2302189A - Refrigeration apparatus : en
  • GB549433A - Improvements in or relating to bearings : en
  • US2302050A - Split-phase motor control : en
  • US2302584A - Combined range and view finder having parallax correcting means : en
  • GB549376A - Improvements relating to cut-out arrangements for polyphase electrical circuits : en
  • US2302560A - Picture frame for handbags : en
  • US2302079A - Process for producing enzymes by the cultivation of micro-organisms on nitrogen and carbohydratecontaining mashes : en
  • DE728085C - Fuse for the adjustment device of the counter knife in lawn mowing machines : de en
  • DE728077C - Method and device for pressing glass objects : de en
  • GB549389A - Improvements in or relating to devices for counting mechanical operations : en
  • CA408714A - Pressure casting machine link mechanism : en fr
  • DE727959C - Diesel engine : de en
  • DE727921C - Process for purifying hydrocarbons : de en
  • DE728145C - Film tour : de en
  • US2302503A - Record spindle driving device : en
  • DE728123C - Device for wave detectors and modulators with several barrier electrode systems : de en
  • DE727976C - Compressor motor unit, especially for compression refrigeration machines : de en
  • DE728042C - Photographic focal plane shutter : de en
  • DE728159C - Chrome-manganese-nitrogen steel : de en
  • DE728074C - Flying pendulum contact plant : de en
  • DE728119C - Sheet execution device for printing machines : de en
  • CA408643A - Gas and powdery material evacuation method : en fr
  • DE728144C - Friction gear for even power transmission : de en
  • FR876867A - Installation of alternate transmission of commands by loudspeaker : en fr
  • FR876763A - Lacto-butyric fermentation process by a new bacterial symbiosis : en fr
  • GB549343A - Improvements in or relating to the cold storage of light alloy sheets after heat treatment : en
  • GB549296A - Manufacture of improved lubricants : en
  • US2302462A - Process of preparing cumic acid : en
  • US2302496A - Torsion dynamometer : en
  • US2302618A - Preparation of organic esters : en
  • US2301915A - Contact arm welding : en
  • USD134376S - Design fob a textile fabric : en
  • GB549347A - Improvements in and relating to colour comparators : en
  • FR876734A - Method and device for supplying engines with hydrogen, in particular for motor vehicles : en fr
  • GB549309A - Improvements in seed sowers or seed injectors : en
  • GB549419A - Improvements in or relating to injection nozzles for internal-combustion engines : en
  • DE728122C - Breakdown transformer : de en
  • US2302001A - Tens carry mechanism for totalizers : en
  • US2302274A - Antisiphoning refill tube : en
  • US2302590A - Rivet : en
  • DE728095C - Aerodrome lighting : de en
  • FR876711A - Improvements to discharge tubes : en fr
  • USD134356S - Design for a photo plaque or similar article : en
  • US2302627A - Typewriting machine : en
  • US2302117A - Thermal timer : en
  • US2302280A - Weight releasing device : en
  • DE728034C - Weir system with intermediate pillars : de en
  • FR876793A - Improvements to portable mechanical perforators used for example in mines : en fr
  • US2302259A - Ornamental cover for flower pots : en
  • US2302080A - Teletypewriter system : en
  • US2302282A - Level for sheering indicators : en
  • CA408668A - Voltage regulator : en fr
  • US2302396A - Cleansing and cooling gases by liquid in the manufacture of water gas : en
  • US2302165A - Refrigerator latch : en
  • USD134353S - Design for a lamp lens : en
  • DE728030C - Process for the production of high-strength shoelaces : de en
  • USD134344S - Design fob a jewelry stone or similar article : en
  • US2302364A - Ignition system : en
  • US2302633A - Pipe wrench : en
  • US2302118A - Electron discharge device : en
  • US2302526A - Apparatus for treatment of feed and other material with molasses : en
  • USD134372S - Design for a belt : en
  • USD134374S - Design fob a textile fabric : en
  • US2302575A - Backlash eliminator for spindle drives : en
  • US2302286A - Filler composition : en
  • CA408633A - Punch holder stripper plate : en fr
  • DE727971C - Feather pen : de en
  • DE728004C - Tubular anchoring means intended for axial storage in artificial teeth : de en
  • US2301949A - Can sealing machine : en
  • US2302421A - Motor : en
  • FR876814A - Process for the constitution of color photographic images : en fr
  • US2302572A - Optical measuring or testing apparatus : en
  • US2302467A - Process of oxidizing a mixture of a cymene and a menthane and products therefrom : en
  • US2301996A - Method for preserving documents and the like : en
  • CA408690A - Heat exchange element : en fr
  • US2302158A - Manually operable remote control for radiator inlet valves : en
  • US2301929A - Radio distance and altitude indicating system : en
  • US2302020A - Decorative tile : en
  • CA408729A - Carbonized metal and alloy for electrodes : en fr
  • DE727888C - Process for the production of preparations from the blood sugar lowering hormone of the pancreas : de en
  • DE728053C - Spring-free overturning disc with erecting mechanism based on the lever principle : de en
  • US2301944A - Piston : en
  • US2302134A - Adjustable mechanism : en
  • US2302105A - Abrading device : en
  • CA408742A - High pressure pipe union : en fr
  • DE727966C - Sheet metal cutting device with cutting steel moving back and forth, which works against two sub-bars with parallel cutting edges : de en
  • US2302060A - Conveyer mechanism for mail treating apparatus : en
  • US2302416A - Heat exchange unit and heating system for automobiles : en
  • US2302533A - Guard device : en
  • US2302297A - Cracking with synthetic gel catalysts : en
  • US2302343A - Ski attachment for aircraft : en
  • US2302366A - Shower head : en
  • US2301966A - Process for the manufacture of valuable products from olefins : en
  • FR876775A - Mixer for the use of compressed gases, and in particular lighting gas, in the operation of internal combustion or combustion engines : en fr
  • US2302252A - Thermostatic valve : en
  • US2302271A - Alarm system : en
  • US2302229A - Manufacture of propeller blades : en
  • US2302622A - Continuous depth filter having an interior cylindrical retaining wall : en
  • CA408672A - Slurry mixer : en fr
  • CA408702A - Smokeless powder : en fr
  • US2301991A - Device for the transmission of electric current from a relatively moved conductive surface : en
  • US2302019A - Machine for operating on shoes : en
  • US2302349A - Instruction outfit for the making, play, and use of puppets or dolls : en
  • GB549325A - Improvements in or relating to automatic telephone systems : en
  • USD134381S - Design fok a scarf or similar article : en
  • US2302185A - Electrified spray apparatus : en
  • US2302566A - Rotary press : en
  • DE728104C - Notation for music printing using vertical typesetting machine lines cast from cross-stamped matrices : de en
  • US2302027A - Pneumatic tire : en
  • US2302122A - Mechanical pencil : en
  • FR876886A - Solid pneumatic wheel for tractors, agricultural vehicles, etc. : en fr
  • US2302260A - Timer setting and starting device : en
  • GB549438A - Improvements in or relating to machines for the manufacture of cigar or the like bunches : en
  • FR876706A - Improvements to transit time tubes incorporating hollow resonators : en fr
  • US2302266A - Lamp shade construction : en
  • DE727948C - Lacquers and paints : de en
  • CA408659A - Aviator's belt : en fr
  • GB549311A - Improvements in listening or sound-locating apparatus : en
  • US2302322A - Power control for engines : en
  • FR876816A - Process for the preparation of cyclic acetals derived from ketosteroids : en fr
  • FR876889A - Removable concrete post : en fr
  • US2302492A - Mouthpiece for musical brass wind instruments and the like : en
  • DE727940C - Circuit for generating harmonics of high frequency constancy : de en
  • USD134335S - Design for a shirt collar support : en
  • US2302148A - Movable eye-mounting for toys : en
  • US2302308A - Antiskid chain : en
  • US2302450A - Filter : en
  • US2302321A - Process for the production of the : en
  • US2301972A - Flow regulator for petroleum separators : en
  • US2302573A - Skirt measuring and marking device : en
  • DE728016C - V-belt with a core consisting of a thread bundle : de en
  • US2302107A - Nitrated fabric for lace making and method for making same : en
  • US2302293A - Crosstalk reduction : en
  • DE728001C - Process for increasing the light resistance of artificially formed structures made of cellulose or cellulose derivatives : de en
  • USD134377S - Design for a textile fabric : en
  • US2302357A - Heating apparatus : en
  • US2302474A - Summation meter : en
  • NL99504B - : en
  • US2302239A - Hobbyhorse : en
  • US2302382A - Removal of impurities from soap nigre : en
  • GB549393A - Improved remote indicating and signalling device : en
  • US2302236A - Sanitary circulatory meat tray holder and trim : en
  • US2302139A - Beverage carton display rack : en
  • US2302216A - Corset or foundation garment : en
  • FR876819A - Method and device for adjusting the gas mixture ratio : en fr
  • FR876836A - Compressed reactive peat moss manufacturing process : en fr
  • FR876718A - Acetylene generator : en fr
  • GB549439A - : en
  • US2302509A - Power take-off mechanisms : en
  • US2302498A - Communication system : en
  • US2302598A - Detergent : en
  • DE727672C - System with a central receiver for several listening points : de en
  • DK60338C - Adhesive. : da en
  • US2301922A - Means for roasting coffee : en
  • AU116108B2 - Improvements in or relating to electric measuring apparatus involving amplifiers : en
  • GB549403A - A process for the manufacture of water soluble vegetable colloid pastes or powders : en
  • FR876852A - Device for closing the air intake opening of a fuel tank such as that of motor vehicles : en fr
  • DE727951C - Locking and release device for a pair of pliers for carrying loads : de en
  • US2302146A - Wick support for devotional lights : en
  • US2302005A - Gear shift : en
  • USD134345S - Design foe a ring : en
  • US2301920A - Interliner package : en
  • DE728182C - Process for the production of desiccants : de en
  • DE728125C - High frequency intermediate amplifier : de en
  • US2302003A - Static discharging floor covering : en
  • US2302563A - Porcelained metal structure and method of making the same : en
  • AU351641A - Improvement in luminescent coating for electric lamps : en
  • DE728143C - Gas turbine with cooled blades : de en
  • DE728059C - A toy with a drain body with a roller ball sliding downwards on an inclined plane : de en
  • US2302111A - Vacuum cleaner : en
  • GB549372A - Improvements in or relating to filters for liquids : en
  • FR876801A - For burner using methylated spirits and automatically formed alcohol gas for heating all appliances : en fr
  • DE728054C - Hand crank drive, especially for guns straightening machines : de en
  • DE728055C - Camouflage cover : de en
  • US2302457A - Electrical musical instrument : en
  • FR876847A - Compressor, especially for small refrigeration machines : en fr
  • US2302226A - Hat : en
  • US2302265A - Osteotome : en
  • FR876866A - Improvements to seals : en fr
  • US2302411A - Pump : en
  • DE728185C - Process for the manufacture of a leather product from leather fabrics : de en
  • GB549365A - Improvements in or relating to heating and/or cooling batteries and the like : en
  • DE728026C - Stabilizing device for motor vehicles : de en
  • US2302042A - Propeller control mechanism : en
  • DE728129C - Device for aligning an incandescent lamp luminaire with respect to a lamp vessel part designed as a reflector : de en
  • DE728150C - Method for applying and pressing large drawings or the like onto an uneven workpiece provided with a light-sensitive surface : de en
  • US2302124A - Television signal-reproducing system : en
  • US2302251A - Apparatus for welding metal parts : en
  • DE728062C - Unloading device for underground bunker : de en
  • DE727898C - Means for combating the bee mite : de en
  • GB549338A - Improvements in the separation of fine particles from gases by the aid of a washing liquid : en
  • US2302486A - Fluid pressure brake control means : en
  • US2302517A - Brassiere : en
  • US2302390A - Guard device for sewing machines : en
  • USD134331S - Design for a refrigerator : en
  • FR876787A - Harrowing device intended to be mounted on an agricultural traction machine : en fr
  • GB549418A - Improvements in or relating to apparatus embodying fabrics for filtering, cleaning and charging air, gas or liquid : en
  • DE727351C - Roll film cassette consisting of two nested cylinder sleeves : de en
  • DK60340C - Rental material. : da en
  • CA408660A - Transmission mechanism for motor vehicles : en fr
  • AU451442A - Method and apparatus for receiving frequency modulated waves : en
  • DE727954C - Vulcanizing mold for manufacturing a rubber metal bearing : de en
  • DE728093C - Process for the production of a particulate filter formed from sector-shaped molded pieces : de en
  • DE727986C - Device for evenly dividing a flow of liquid, steam or gas : de en
  • US2302052A - Refrigerating apparatus : en
  • US2302262A - Apparatus for sterilizing, purifying, and dehydrating gas : en
  • DE728073C - Circuit arrangement for a remote-controlled electric direct current traction vehicle : de en
  • GB549330A - Improvements in sheet metal containers : en
  • US2302649A - Coin slide attachment : en
  • FR876747A - Telephone apparatus for diving suit : en fr
  • DE727924C - Procedure for pest control in mills and related businesses : de en
  • US2302180A - Cotton harvesting machine : en
  • US2302292A - Lawn edger : en
  • DE728076C - Closed, remote-controlled fuse, which uses a flammable mass : de en
  • GB549411A - Improvements in and relating to snap fasteners : en
  • GB549428A - Improvements in or relating to pocket and like knives : en
  • FR876702A - Scraping device for color mills with one and more rollers or cylinders : en fr
  • US2302459A - Cosmetic holder : en
  • DE727956C - Device for generating torsional vibrations for checking or calibrating torsional vibration and torsion meters : de en
  • DK60331C - Ventilation device for waterproof garments. : da en
  • USD134333S - Design for an evaporator : en
  • FR876845A - Device with two networks for pressurized fluid brakes, especially for automobiles : en fr
  • DE728172C - Hanging pocket for storing index cards or similar documents : de en
  • US2302427A - Process of separating waxcontaining materials : en
  • US2302193A - Shaker screen : en
  • USD134370S - Design for a textile fabric : en
  • DE727981C - Separating container for processing according to the floating and sinking method : de en
  • FR876788A - Mixed iron and concrete floor : en fr
  • US2302317A - Toilet seat cover : en
  • US2302442A - Internal combustion engine : en
  • US2302612A - Preparation of copper phthalocyanines : en
  • DE728058C - Toy vehicle or toy tank with a spark generator : de en
  • FR876879A - Application of steel alloys : en fr
  • DE727968C - Storage for during operation around their longitudinal axis rotatable blades of Verstelluftscrews : de en
  • FR876899A - Device for fixing the upholstery fabrics of an automobile body in particular : en fr
  • FR876815A - Method for obtaining color photographic images : en fr
  • FR876749A - Variable pitch propeller : en fr
  • DE728080C - Method for producing a synthetic resin composition : de en
  • DE728087C - Roller straightening machine with two optionally usable roller sets : de en
  • US2302497A - Automatic gasoline dispenser : en
  • US2302243A - Convertible cabinet construction : en
  • US2302632A - Polymerization of rosin and rosin esters : en
  • US2302516A - Means for dislodging surface materials : en
  • US2302119A - Electric welding : en
  • FR876825A - Manufacturing process of mineral and vegetable carbon tablets for gasifiers : en fr
  • FR876857A - Voltage regulator systems for accumulator batteries : en fr
  • US2302073A - Mining machine : en
  • US2302340A - Waterproof watchcase : en
  • DE723029C - Method of making a spread : de en
  • DE728009C - Process for the enlarged image of photographic negatives as positive : de en
  • US2302454A - Sewing machine : en
  • US2302535A - Paging system : en
  • US2302576A - Polymerization of rosin and rosin esters : en
  • US2302654A - Bicycle lock : en
  • US2302095A - Assembling fan blades and rims : en
  • CA408755A - Pigment dyestuff : en fr
  • US2302021A - Nozzle for generating fog : en
  • CA408680A - Motor control system : en fr
  • CA408721A - Threading tool : en fr
  • US2302402A - Weighing scale : en
  • US2302407A - Temperature regulator : en
  • DE728002C - Artificial bits or parts of bits : de en
  • FR876720A - Process for extracting saponifiable materials with a view to obtaining new detergents : en fr
  • CA408707A - Fuel pump : en fr
  • FR876873A - Improvements to pocket calculators : en fr
  • GB549345A - Improvements in or relating to gas producers : en
  • CA408649A - Catalyst preparation : en fr
  • US2302023A - Oxygen delivery apparatus : en
  • US2302527A - Carburetor structure : en
  • US2302550A - Duct jack : en
  • DE727989C - Arrangement for modulating an electrical vibration generator : de en
  • GB549335A - Improvements in or relating to the impregnation of wood with resin : en
  • GB549371A - Improvements in dry stripping photographic materials : en
  • US2302324A - Nitric acid esters of monoacyl glycerines and their production : en
  • US2302358A - Regulating device for fuel injection apparatus : en
  • USD134364S - Besign for a playsuit or similar article : en
  • DE727955C - Process for the preparation of stable emulsions of polymerization products : de en
  • FR876792A - Improvement to the switch mechanism for electrical equipment used in mines or other places where there is dust, for example for electric drills for coal and stone : en fr
  • US2301930A - Multiple motor drive mechanism : en
  • US2302113A - Battery connector for hearing aids : en
  • US2302136A - Method and apparatus for producing gaseous and liquid carbon dioxide and dry ice : en
  • US2302422A - Calculating machine : en
  • US2302178A - Acoustic diaphragm : en
  • USD134362S - Design for a hand drill unit : en
  • CA408671A - Earth formation opening sealing process : en fr
  • DE728092C - Tilt and impact protection for turntable ladders : de en
  • DE728005C - Dosing device for the consumption of medicaments, especially medicamentous kind in small and very small amounts : de en
  • CA408653A - Nibbling machine : en fr
  • US2301956A - Roll-film camera : en
  • US2302445A - Method of polymerizing 2-chlorobutadiene-1, 3 : en
  • US2302362A - Stabilization of halogen containing organic materials : en
  • CA408647A - Gray cast iron : en fr
  • US2302150A - Vacuum breaker : en
  • US2302553A - Liquid feeding system : en
  • USD134380S - Design foe a scarf or similar article : en
  • AU116119B2 - An improved process of ore concentration : en
  • USD134341S - Design fob a jousting board : en
  • CA408675A - Circuit interrupter : en fr
  • GB549426A - Reciprocating facsimile apparatus : en
  • DE728012C - Auxiliary device for the detection of sedentary warfare agents through pot reaction : de en
  • ES139566A1 - Improvements in bags or cloakroom bags. : en es
  • US2302494A - Retaining ring : en
  • US2302360A - Rivet setting device : en
  • US2302520A - Detector coupling circuit : en
  • USD134369S - Design for a flag or similar article : en
  • US2302493A - Amplifying system : en
  • DE728164C - Device for power control on a multi-stage axial blower : de en
  • NL53439C - TEMPERATURE CONTROLLER ACCORDING TO THE DIPPING PRINCIPLE, WHICH INFLUENCES AN ELECTRICAL CURRENT CIRCUIT AND HAS A ROTARY KNOB AS ADJUSTING ELEMENT : en nl
  • US2302065A - Driving belt : en
  • US2302183A - Roofing material : en
  • DE728061C - Shaft conveyor vessel with liftable and lowerable protective flap for the material to be conveyed : de en
  • CA408747A - Electric heater : en fr
  • US2302501A - Riveted joint : en
  • DE727930C - Device for alternately filling two types of pressurized gas cylinders : de en
  • GB549341A - Improvements in or relating to apparatus for feeding cut tobacco : en
  • DE728170C - Screw fastening of the wooden handle of the iron to the metal holder : de en
  • DK60336C - Device by terminal block and connecting cable by galvanic elements, in particular electric accumulators. : da en
  • FR876872A - Improvement in slide rules : en fr
  • NL56339C - : en
  • US2302263A - Method of making stud links : en
  • CA408655A - Triplicate manifolding book : en fr
  • CA408743A - Material metering device : en fr
  • US2302070A - Wetting agent : en
  • US2302004A - Gear cutting machine : en
  • CA408703A - Smokeless powder : en fr
  • USD134363S - Design fob a pin or similar article : en
  • CA408658A - Brake : en fr
  • US2302519A - Hand loom : en
  • US2302076A - Dirigible vehicle light : en
  • US2302278A - Carbon microphone : en
  • CA408667A - Circuit breaker reclosing mechanism : en fr
  • DE728149C - Box-like film reel container : de en
  • FR876846A - Release device for hydraulic brake systems especially for rail vehicles : en fr
  • GB549378A - Improvements in or relating to brakes : en
  • AU352541A - Moulded coil former : en
  • CA408694A - Amino fatty acid derivative : en fr
  • US2302195A - Apparatus for separating waxcontaining materials : en
  • US2301959A - Moistureproof sheet wrapping material : en
  • CA408665A - Watthour meter : en fr
  • CA408669A - Tubular lamp socket : en fr
  • DE728044C - Airplane with two engines in a row : de en
  • GB549368A - The manufacture of organic cyanamides : en
  • GB549430A - Improvements in electrical token apparatus for railways : en
  • FR876753A - Method and device for manufacturing molded parts : en fr
  • FR876781A - Cutter and advertising ticket holders for use by public transport travelers using perforated strip tickets : en fr
  • US2302289A - Electrified spray method and apparatus : en
  • ES7344U - Basket (Machine-translation by Google Translate, not legally binding) : en es
  • FR876802A - Cutter for all applications, particularly suitable for cutting food tickets : en fr
  • FR876835A - Grid bars for grinding rod mills : en fr
  • US2302272A - Universal joint : en
  • US2302460A - Cuttings-conveying mechanism : en
  • USD134347S - Design fob a rotary hoe surface cultivator : en
  • FR876797A - Method for the magnetization of permanent magnets and magnets obtained by applying said method : en fr
  • US2301986A - Plastic acoustic pulp : en
  • CA408736A - Label for unitary packages : en fr
  • DE728121C - Overlay receiver for several wave ranges : de en
  • DE728156C - Injector torch for welding, cutting and soldering work : de en
  • US2302429A - Art of dewaxing lubricating oils : en
  • US2302415A - Fender shield mounting : en
  • DE727876C - Circuit arrangement for switching devices with manual operation in telegraph systems : de en
  • FR876786A - Protective device for cyclists against bad weather : en fr
  • US2302333A - Electric dice game : en
  • GB549342A - Improvements in carrier-signal frequency-detector systems : en
  • CA408752A - Metal sheet can : en fr
  • GB549408A - Improvements in and relating to feed water heaters and to the control of the supply of water thereto : en
  • US2302129A - Train line safety device : en
  • GB549395A - Improvements in rim latch : en
  • US2302303A - Solvent extraction of naphthas : en
  • CA408737A - Hinged closure container : en fr
  • FR876897A - Transformer with radial or involute sheet core : en fr
  • CA408692A - Liquid clarifier : en fr
  • DE728190C - Device for excavating a ribbon of glass from a port : de en
  • US2302086A - Electrical apparatus : en
  • US2302593A - Control apparatus : en
  • FR876849A - Compressor, especially for refrigeration machines : en fr
  • GB549355A - Improvements relating to flowmeters : en
  • US2302194A - Arrangement for the framing of wooden structures : en
  • US2302475A - Hose clamp : en
  • USD134332S - Venturi mixing chamber for liquid fuel burners : en
  • USD134349S - Design for a lamp lens : en
  • US2302401A - Photographic shutter : en
  • US2302451A - Brake lining wear indicator : en
  • US2302555A - Process and apparatus for making artificial threadlike products : en
  • DE727970C - Device for self-centering clamping and guiding of rotating, especially non-round workpieces in machine tools, especially in machines for grinding crankshaft journals : de en
  • DE728040C - Air separator : de en
  • FR876892A - Gasifier, in particular for motor cars : en fr
  • US2302031A - Photographic apparatus : en
  • US2301919A - Electric attachment fitting : en
  • US2302650A - Tent : en
  • FR876870A - Cathode ray tubes : en fr
  • US2301987A - Electron microscope : en
  • FR876735A - Improvements to coolers, refrigerated cabinets and the like : en fr
  • US2302596A - Shoe : en
  • US2301939A - Production of ceramic bodies : en
  • US2302483A - Thresher : en
  • US2302275A - Comb for carpet sweepers : en
  • US2302048A - Electric stove or the like : en
  • US2302069A - Material breaking implement : en
  • US2302131A - Clock ratchet structure : en
  • US2302186A - Dispenser for condiments or the like : en
  • CA408631A - Jordan engine lining : en fr
  • DE728153C - Method and device for setting two rotating shafts to the same speed and phase : de en
  • GB549406A - Improvements in automatic cut-off valves : en
  • CA408636A - Aileron : en fr
  • CA408720A - Accounting machine : en fr
  • CA408681A - Vapour electric device : en fr
  • US2302063A - Copyholder : en
  • FR876737A - : fr
  • US2302543A - Process and apparatus for covering elastic filaments : en
  • US2302085A - Speed controlling mechanism : en
  • DE728011C - Device for static pressure equalization for aircraft on-board equipment : de en
  • FR876719A - Freewheel for bicycles and the like : en fr
  • US2302207A - Abrading tool : en
  • US2302640A - Refrigeration thermometer : en
  • US2302642A - Safety belt : en
  • DE728118C - Setting and embossing device that can be used as a writing and reading device for the blind : de en
  • DE728146C - Film reel : de en
  • GB549401A - Improved connection for tyre pumps : en
  • US2302325A - Engine starter gearing : en
  • DE728027C - Hub brake for vehicle or aircraft wheels : de en
  • GB549420A - Improvements in or relating to means for preparing facsimile messages for transmission : en
  • US2302270A - Pulp making process : en
  • US2302547A - Removable wall covering and fastening means therefor : en
  • GB549415A - Improvements in or relating to apparatus for feeding a stream of overlapping sheets : en
  • DE727963C - Process for copper plating of rotogravure printing rollers : de en
  • DE727990C - Method for eliminating the interference of a message transmitted with carrier frequency caused by amplitude and / or phase distortion of the two sidebands : de en
  • US2302626A - Automatic timer : en
  • US2302508A - Apparatus for stretching filiform materials : en
  • US2302153A - Bookholder : en
  • US2302258A - Cinch for belts and the like : en
  • DE728015C - Four-stroke internal combustion engine with a compressor that is driven by an exhaust gas turbine and serves to convey the scavenging and supercharging air : de en
  • DE728163C - Device for automatic voltage regulation in AC circuits with the help of regulating chokes : de en
  • US2302106A - Telephone booth : en
  • US2302540A - Closure cap : en
  • US2302604A - Fused bath electrolytic production of ferrochromium : en
  • US2302571A - Method of making electrical laminations : en
  • FR876810A - Process for manufacturing cellulose pulp for paper, viscose or other applicaions : en fr
  • GB549326A - Improvements in or relating to the hydrolytic decomposition of titanium salt solutions : en
  • AU453442A - Improvements relating togas cookers : en
  • GB549364A - Improvements in or relating to brakes : en