• DE729021C - Electric motor drive, especially for stage signal boxes : de en
  • DE728969C - Electromagnetic relay with spring armature : de en
  • DE729250C - Dental syringe for the optional delivery of different spray agents : de en
  • DE729031C - Rotary valve control for internal combustion engines, especially two-stroke engines : de en
  • DE729076C - Process for the production of curved see-through panels from thermoformable plastic sheets : de en
  • DE729116C - Process for the production of sterile bandages or sterile catgut : de en
  • DE729169C - Motor vehicle with a middle frame tube : de en
  • DE729198C - Electric switch with a rotatable switching piece that is locked in the switching positions by two straight-line sliding locking bolts : de en
  • US2304535A - Direct current measuring instrument : en
  • US2304501A - Yarn carrying device : en
  • CA409255A - Fastener lock slider : en fr
  • DE729186C - Process for the production of basic complex thorium sodium taratate : de en
  • US2304101A - Acyl chlorides and ketones derived therefrom in the cyclopentanophenanthrene series and method of preparing same : en
  • US2304148A - Stock dividing gauge : en
  • US2304339A - Microphone : en
  • US2304414A - Locking device : en
  • SE106070C1 - Electrical installation device : en sv
  • GB549830A - Improvements relating to alternating current rectifier apparatus of the dry surface contact type : en
  • US2304312A - Dispensing cabinet : en
  • US2304532A - Nursing bottle : en
  • CA409279A - Electric incense vaporizer : en fr
  • DE728919C - Process for the production of cookable solutions from cellulose-containing raw materials : de en
  • DE729270C - Rear-engined vehicle with folding top, in which the cooling air inlet for the engine is formed by flaps that open to the side and face the direction of travel : de en
  • CA409247A - Waterlaid felt manufacture : en fr
  • CA409281A - Sealed can : en fr
  • DE725009C - Method for measuring air temperature from high-speed aircraft : de en
  • US2304565A - Laboratory delinter : en
  • FR877556A - Assembly process between a wire mesh and a tube or bar and new products obtained by applying this process : en fr
  • GB549877A - Improvements in or relating to apparatus for feeding rod shaped articles : en
  • DE729077C - Process for the production of a felt-like material : de en
  • FR877427A - Flash light : en fr
  • DE729264C - Device for fine adjustment of feed lengths during operation on machines with intermittent feed : de en
  • US2304662A - Ice shaper : en
  • US2304745A - Handle and latch construction : en
  • FR877631A - Manufacturing process of bread flour and bread : en fr
  • US2304658A - Shelf bracket : en
  • US2304299A - Composition for treating metal surfaces preparatory to painting : en
  • US2304475A - High molecular weight aliphatic diamide of sebacic acid and process of preparing same : en
  • DE729127C - Flange sealing with several ring webs placed one behind the other in the sealing body : de en
  • US2304759A - Means for preparing pie crusts : en
  • US2304674A - Brake lining grinder : en
  • DE729070C - Method of making a paint binder : de en
  • DE729106C - Process for the extraction of phlobaphene-free structural substance from pine bark : de en
  • CA409286A - Electric cable : en fr
  • AU346041A - Improvements in or connected with reciprocating pumps : en
  • CA409215A - Salt making apparatus : en fr
  • US2304426A - Thiazyl sulphides : en
  • US2304623A - Reaction of ethylenimines with thiols and product thereof : en
  • FR877467A - firearm : en fr
  • CA409227A - Coating anchoring method : en fr
  • AU116201B2 - Improvements in or connected with reciprocating pumps : en
  • US2304506A - Drier : en
  • GB549784A - Improvements in charging arrangements for electric accumulator vehicles : en
  • AU374441A - Improvements in and relating to signal lamps : en
  • CA409267A - Shoe lasting and welting machine : en fr
  • FR877623A - Bleaching agents and baths : en fr
  • GB549817A - Improvements relating to boilers, hot-water containers, and the like : en
  • US2304473A - Conveyer control : en
  • US2304734A - Container spinner for beverage mixers : en
  • DE729056C - brush : de en
  • US2304260A - Apparatus for packing containers with yarn : en
  • GB549885A - Improvements in or relating to the manufacture of caps for closures of containers : en
  • DK60393C - Projection device for TV receivers. : da en
  • DE728971C - Electric salt bath oven : de en
  • DE728994C - Two-part bollard : de en
  • CA409174A - Electrical bushing cap : en fr
  • CA409273A - Telephone system : en fr
  • DE729038C - Braking device for road vehicles pulled by draft animals : de en
  • DE729149C - Disconnector : de en
  • DE729175C - Tobacco feeding device for cigar machines : de en
  • CA409179A - Brake control means : en fr
  • US2304338A - Halter : en
  • DK60409C - Rainproof Box with removable Shutters. : da en
  • CA409237A - Tire valve : en fr
  • DE728722C - Nut for aircraft construction : de en
  • DE728877C - Process for the production of fertilizers : de en
  • DK60401C - Roller-shaped swivel slide. : da en
  • FR877642A - Improvements to high frequency current measuring devices : en fr
  • CA409284A - Spring assembly making machine : en fr
  • FR877554A - Heat treatment process and furnace : en fr
  • DE728829C - Circuit arrangement for telephone extension systems with manual operation : de en
  • DE729260C - Cable harness for liquids and / or gases protected against bomb, grenade and other explosive effects : de en
  • GB549895A - Improvements in or relating to the treatment of vulcanised rubber articles and the products obtained thereby : en
  • GB549786A - Improvements in hairwaving apparatus : en
  • FR877587A - Acetylene generator from carbide : en fr
  • US2304074A - Dehydrated castob oil treatment : en
  • US2304174A - Roller chain sickle : en
  • FR877530A - Thermal insulation process : en fr
  • CA409096A - Finned cylinder barrel producing apparatus : en fr
  • DE729059C - Process for the recovery of thorium from spent carbon oxide hydrogenation catalysts : de en
  • FR877602A - Process for the preparation of filter cloths, particularly intended for electrochemical industries : en fr
  • GB549835A - Safety circuit for cathode ray tubes : en
  • CA409165A - Camera spool device : en fr
  • CA409088A - Supplementary book leaf attaching means : en fr
  • US2304302A - Portable gas stove and electric heater : en
  • US2304324A - Gravity meter : en
  • DE729137C - Device for keeping the viscosity and the paint level constant in painting facilities : de en
  • FR877527A - Improvements to electric lighters : en fr
  • GB549899A - Improvements in altimeters : en
  • US2304457A - Dispensing mechanism : en
  • DE729154C - Pants urinal that can be worn on the body and can be used without opening clothing : de en
  • FR877463A - Method of telegraphy for the transmission of communications on electric waves : en fr
  • FR877578A - Circular copper pipe in the cupro-ammoniacal rayon manufacturing process : en fr
  • US2304152A - Explosive projectile : en
  • US2304509A - Spraying apparatus : en
  • CA409266A - Shoe sole edge setting machine : en fr
  • US2304700A - Beach or lawn lounge : en
  • CA409132A - Molybdenite flotation process : en fr
  • CA409139A - Manifolding machine refolding device : en fr
  • US2304181A - Electric weft detector for looms : en
  • US2304225A - Method of electrically heating wires and the like and apparatus therefor : en
  • CA409120A - Clamp : en fr
  • DE729156C - Electrically internally heated hair curling rod for the permanent wave method : de en
  • DE728970C - Arrangement for the operation of discharge lines with submersible transmitters : de en
  • GB549823A - Improvements in reciprocating pumps : en
  • DE729145C - Guide horn for self-actuating rigid central buffer couplings, especially on rail vehicles : de en
  • US2304350A - Rotary drawworks : en
  • AU116217B2 - Frequency modulation receivers : en
  • GB549865A - Improvements in high-voltage power-supply systems : en
  • US2304448A - Condenser for soil moisture meter : en
  • US2304556A - Door control apparatus : en
  • US2304584A - Wheel structure : en
  • FR877501A - Improvements to gasifier vehicles : en fr
  • US2304259A - Rotating heat engine : en
  • US2304147A - Rake : en
  • FR877645A - Improvements to electric lamp holders : en fr
  • US2304572A - Upper-fastening mechanism : en
  • CA409140A - Fluid heat exchange apparatus : en fr
  • US2304061A - Switching device for telephone instruments : en
  • FR877536A - Filter to purify the gases leaving the gasifiers directly : en fr
  • DE728944C - Device for protecting babies from chemical warfare agents : de en
  • FR877521A - One-piece handle with central core ensuring its attachment to the handlebars of bicycles, tandems, sports toys or any other application : en fr
  • GB549844A - Improvements in and relating to mechanically operated electrical contact mechanism having magnetic biasing : en
  • GB549896A - Rubber and like press pads for metal working presses : en
  • US2304388A - Frequency modulator : en
  • DE728948C - Process for the production of organic cyano compounds : de en
  • DE728950C - Device for the production of centrifugal castings : de en
  • DE729258C - Valve arrangement for multi-cylinder internal combustion engines : de en
  • DE729269C - Firearms storage for aircraft : de en
  • DE729028C - Device to avoid dripping water caused by thermal expansion in overflow storage tanks : de en
  • FR877489A - Broom pulp and its manufacturing process : en fr
  • GB549888A - Improvements in and relating to aircraft : en
  • DE728894C - Process for obtaining vitamin E acetate concentrates : de en
  • DE729180C - Wind turbine with propeller-like blades that can be folded down in the direction of the wind : de en
  • FR877495A - Protection device against theft of cycles and motorcycles : en fr
  • USD134553S - Design for a dress : en
  • FR877403A - Pipes for domestic water drainage installations or the like, and method of making such pipes : en fr
  • US2304489A - Control instrumentality : en
  • DE729206C - Mattress with springy wooden strips : de en
  • DE729210C - Optical device for reproducing stereoscopic images : de en
  • US2304167A - Grounding and sealing device : en
  • DE729010C - Process to increase the stretchability of stretched acetate : de en
  • DE729053C - Device for heat treatment and processing of thickened or thick milk for the production of cheese : de en
  • DE729100C - Shell construction method for hollow bodies made of wood, in particular for aircraft : de en
  • DE729125C - Device for regulating the fuel supply of internal combustion engines : de en
  • FR877506A - electric propellant for bicycles : en fr
  • US2304078A - Cuprous oxide : en
  • US2304419A - Conveyer : en
  • US2304754A - Light reflecting and transmitting article : en
  • DE729006C - Device for applying sealant to the edges of sleeves, container bodies or the like, in particular those made of paper : de en
  • DK60397C - Electric Motor Blower for Cream Whiskers. : da en
  • US2304749A - Parasiticidal compositions containing sulphur and method for the preparation thereof : en
  • GB549832A - Improvements connected with gaseous electric discharge devices and their manufacture : en
  • DE729194C - Arrangement for the amplitude modulation of cm and dm wave transmitters : de en
  • CA409131A - Surface covering material : en fr
  • US2304626A - Water treating apparatus : en
  • US2304180A - Coal mining auger mount : en
  • US2304709A - Method of coating ferrous articles : en
  • CA409122A - Multi-phase transmission line protection process : en fr
  • GB549856A - A device for use in cleaning chimneys : en
  • FR877596A - Process for the manufacture of a product with a spongy or honeycomb structure suitable for insulation : en fr
  • GB549892A - Improvements connected with the cutter chain mechanism of coal cutter machines : en
  • US2304546A - Safety brake control mechanism : en
  • US2304601A - Pocketknife : en
  • FI19449A - Sät för förbättring av vidhäftningsförmågan hos hydrophoba skikt vid cellulosahydratfolier : en fi
  • DE729066C - Galvanic element, especially dry element, with increased shelf life : de en
  • US2304727A - Glass blowing machine : en
  • CA409104A - Tractor rake lift : en fr
  • US2304238A - Cutting apparatus : en
  • USD134548S - Design for a dress : en
  • DE729201C - Method for processing the heel parts on a piece of hosiery consisting of length and foot parts on the flat weft knitting machine : de en
  • DE729065C - Circuit for signals, especially those of the semi-automatic type : de en
  • FI19444A - Pappersbehållare, tillskärning av en pappersbehållare jämte förfaringssätt och anordning fill tillslutning av en pappersbehållare : en fi
  • US2304320A - Air rifle : en
  • US2304402A - Weight indicator : en
  • US2304557A - Manufacture of thiazyl sulphur halides : en
  • US2304647A - Licker grinder : en
  • US2304255A - Oil pan baffle : en
  • CA409093A - Electric air heating appliance : en fr
  • FR877606A - Sisal shoe : en fr
  • AU388741A - Improvements in means for controlling the flow of fluid in spray dips : en
  • DE728884C - Process for the production of glow path regulators : de en
  • USD134554S - Design fob a dress : en
  • US2304205A - Ironing machine : en
  • US2304219A - Perforated foldable sheet : en
  • US2304341A - Roundabout : en
  • AU116215B2 - Improvement in carrier-signal detector : en
  • US2304447A - Box conveyer switch : en
  • US2304449A - Accounting machine : en
  • FR877546A - Use of refractory earths of different compositions to form supports for electric heating resistors : en fr
  • FR877424A - Headlight with adjustable ring mount, intended to fit into an opening in the outer wall of a vehicle and in particular of an automobile : en fr
  • DE728875C - Device for pressing peat : de en
  • GB549894A - Improvements in securing bands and straps to pneumatic tyres and other articles : en
  • US2304068A - Refrigeration : en
  • US2304716A - Loose-leaf binder : en
  • US2304421A - Cutting apparatus : en
  • AU116222B2 - Improved means for admitting fuel to internal combustion engines : en
  • CA409108A - Electric lighted ornamental device : en fr
  • US2304378A - Caster wheel fork : en
  • US2304311A - Fastener means : en
  • DE729261C - Indirectly controlled safety valve : de en
  • IE16399L - Wheel hub reduction gear : en
  • DE729148C - Antenna arrangement to give preference to ground radiation : de en
  • FR877566A - Improvements to two-wheel motor vehicles : en fr
  • CA409285A - Liquid particle suspension in a gas atmosphere : en fr
  • FR877472A - Shoemaking Shapes Series : en fr
  • GB549889A - Improvements in or relating to means for supplying heated air to furnace and the like fires : en
  • US2304523A - Data recording form : en
  • AU102641A - Improvements relating to submersible electric motors : en
  • DE728962C - Process for the production of solid, anhydrous alkaline earth oxide moldings from alkaline earth hydrates : de en
  • USD134547S - Design for slacks : en
  • FI19431A - Stöt- och ljuddämpande underlag för skrivmaskiner : en fi
  • US2304529A - Circuit interrupter : en
  • US2304574A - Knapsack jacket : en
  • FR877491A - Process for the preparation of a product for food, especially livestock, and resulting product : en fr
  • US2304086A - Carrier unloader : en
  • FR877612A - Bomb for aircraft launching exercises : en fr
  • FR877468A - Filter fabrics or diaphragms particularly intended for electrochemical industries : en fr
  • GB549771A - Improvements in methods and apparatus for radio receiving : en
  • DE729161C - vinyl record : de en
  • DE729288C - Hand protection device on paper cutting machines : de en
  • DE729124C - Control device for internal combustion engine systems with charging and indirect power transmission : de en
  • USD134557S - Tashman handbag : en
  • DE729060C - Process for the production of contact masses for the gasoline synthesis : de en
  • DE729164C - Pipe socket connection : de en
  • US2304230A - Metallic salts of mahogany sulphonate and the process of making the same : en
  • US2304702A - Synchronizing system : en
  • GB549770A - Improvements in scanning radio receivers : en
  • DE729020C - Mains connection device for medium and high voltages for devices with resistance amplification : de en
  • DE729144C - Release device for an automatic coupling on rail vehicles with vertically rotating coupling elements : de en
  • DE729220C - Process for making casings, e.g. Photo bags, envelopes, bags, etc. Like., And workpieces produced by this process : de en
  • FR877411A - Improvements made to elastic steel tape measures : en fr
  • FR877540A - Process for the intensive production of synthetic nitric acid : en fr
  • GB549798A - Combined rotary steam generator and engine : en
  • FR877434A - Heating device for motor vehicles : en fr
  • DE729129C - Announcement device : de en
  • CA409127A - Surface covering material : en fr
  • DE729228C - Tube made from a sheet of film by winding : de en
  • FR877630A - Gasifier : en fr
  • US2304243A - Air conditioning system : en
  • US2304382A - Apparatus for making granular superphosphate : en
  • US2304571A - Conveyer lubrication : en
  • DE729001C - Device for remote control and monitoring of street lamps : de en
  • US2304217A - Method and apparatus for making lenses : en
  • US2304659A - Stereotype mat : en
  • AU375441A - Methods and devices for creating novel sound effects : en
  • AU375641A - Photoelectric phonograph : en
  • US2304227A - Toothbrush container : en
  • US2304589A - Cylinder liner : en
  • USD134543S - Design foe a dress : en
  • USD134550S - Design fob a dress : en
  • DE728966C - High-performance arc lamp, especially for headlights : de en
  • FR877509A - heat exchanger : en fr
  • DE728871C - Process for interrupting fermentation in the production of non-alcoholic or low-alcohol beers, beer-like or other fermented beverages : de en
  • DE729246C - Voting display device for recipients : de en
  • US2304349A - Auxiliary back rest : en
  • US2304190A - Appliance for molding hollow rubber balls and the like : en
  • FR877625A - Electromagnetic warning device, especially for vehicles : en fr
  • US2304077A - Method of telegraphic communication : en
  • DE728956C - Filters for fans of gas protection rooms : de en
  • DE729188C - Process for the preparation of cyanoacrylic acid esters : de en
  • FR877440A - Trigger : en fr
  • US2304644A - Lubricator : en
  • DE729115C - Process for making a resin soap in solid form : de en
  • US2304544A - Package incorporating filament content cutter : en
  • US2304204A - Electrical insulator : en
  • FR877464A - Process for preparing dyes of the phthalocyanine series : en fr
  • USD134501S - Design for a clock : en
  • AU116212B2 - Methods and devices for creating novel sound effects : en
  • CA409261A - Cutting die : en fr
  • IE16468L - Enclosed electric switchgear : en
  • US2304494A - Candy forming method : en
  • US2304164A - Keying filter : en
  • US2304736A - Mold lock : en
  • GB549775A - Improvements in or relating to facsimile telegraph equipment : en
  • FR877457A - : fr
  • US2304133A - Production of anhydrous aluminum sulphate : en
  • GB549772A - Improvements in or relating to apparatus for damping movements of vehicle and other wheels : en
  • US2304642A - Automobile air conditioning unit : en
  • DE729064C - Rail contact device : de en
  • DE729049C - Process and device for the production of encased welding electrodes for arc welding : de en
  • FR877524A - Improvements in the construction of saddle frames and in the methods of attaching coil springs in the saddles of bicycles, tandems, or the like : en fr
  • US2304277A - Typewriting machine : en
  • US2304209A - Car card : en
  • US2304435A - Treatment of dyed textile fabric : en
  • DE729279C - Control for star internal combustion engines : de en
  • US2304139A - Wire tightener : en
  • US2304747A - Blade shroud template : en
  • US2304162A - Yielding drive for loom box motion : en
  • US2304603A - Conveying element : en
  • US2304242A - Diesel fuel : en
  • US2304353A - Heat resistant alloy : en
  • FR877409A - Friction path insert for the handwheel of screw presses and friction wheel presses : en fr
  • AU116193B2 - Improvements in and relating to signal lamps : en
  • US2304670A - Centering tool : en
  • US2304762A - Trolley tender : en
  • DE729101C - Fuel feeder for motor vehicles : de en
  • AU116202B2 - Improvements in means for controlling the flow of fluid in spray dips : en
  • US2304518A - Silicon electrical steel : en
  • US2304576A - Eyeglass structure : en
  • FR877493A - Instant-on semi-armored soles and heels for all types of shoes : en fr
  • US2304717A - Cured rubber article and method of making same : en
  • USD134556S - Design for a lady s suit : en
  • GB549800A - Improvement in processes and materials for thickening latex and like materials : en
  • FR877577A - Installation for dosing, mixing and distribution of bulk materials : en fr
  • CA409168A - Circuit breaker contact system : en fr
  • DE728890C - Flat weft knitting machine with device for automatic hanging of the double edge : de en
  • DE729247C - Heat and power saving device for electric cookers : de en
  • DE729067C - Electric free jet gas switch : de en
  • US2304096A - Fluid system pressure booster : en
  • US2304395A - Rear folder for wrapping machines : en
  • US2304490A - Television apparatus : en
  • US2304067A - Production of rotors for electric machines : en
  • US2304641A - Control apparatus : en
  • CA409102A - Ball bearing : en fr
  • DE729146C - Hose rupture protection : de en
  • CA409187A - Traction increaser apparatus : en fr
  • CA409271A - Injection moulding machine : en fr
  • FR877435A - Pulverized coal burner : en fr
  • AU387541A - Improved photographic emulsions : en
  • CA409254A - Record projector : en fr
  • US2304069A - Metal coating process : en
  • US2304384A - Adjustable foot support : en
  • US2304454A - Water conditioning systme : en
  • US2304533A - Cigarette dispenser : en
  • US2304550A - Reclaimed rubber : en
  • USD134503S - Shadow box or similar article : en
  • CA409185A - Rear end brake valve : en fr
  • US2304656A - Spinning cot : en
  • GB549868A - Improvements in copying lathes : en
  • FR877616A - Receiving rectifier : en fr
  • US2304121A - Welding mechanism : en
  • FR877572A - New lightweight accumulator : en fr
  • FR877490A - Retractable Bottom Garbage Bucket : en fr
  • FR877615A - Goniometric frame : en fr
  • DE728952C - Terrestrial telescope, especially telescopic sight : de en
  • GB549878A - Improvements in or relating to variable speed mechanism : en
  • US2304326A - Reduction of fibrous materials : en
  • US2304714A - Method and apparatus for use in reconditioning gas filled lamps : en
  • DK60396C - Electrical Remote Signaling Cable. : da en
  • FR877449A - Automotive window selective control mechanism : en fr
  • FR877454A - optical element : en fr
  • US2304431A - Method of effecting chemical reactions involving formaldehyde : en
  • US2304495A - Multiplying machine : en
  • USD134546S - Design for a pin or similar article : en
  • GB549795A - Improvements in or relating to electron velocity modulation discharge tubes : en
  • GR9784B - COMPLETED CONSTRUCTION OF SHIP CASES TO INCREASE SAILING SPEED BY ARRANGEMENT OF LEAST WAVES. : el en
  • US2304757A - Refrigerator construction : en
  • DE729141C - Container for storing loose card sheets : de en
  • DE729254C - Feed device for wood shredding machines for the production of end grain chips : de en
  • US2304305A - Wheel chock : en
  • DE729092C - bottle : de en
  • FR877469A - Magnetic sound recording system for dictation recording devices : en fr
  • DE729184C - For different widths adjustable trial bust : de en
  • US2304547A - Receptacle suspension : en
  • DE728954C - Filter breathing apparatus : de en
  • FR877447A - Improvements to gasifiers : en fr
  • GB549884A - Improvements in or relating to wheeled stretcher carriages and the like : en
  • FR877515A - Filter for gasifier gas and the like : en fr
  • DE729108C - Block ice maker : de en
  • DE728983C - Cutting machine for soft caramel candies : de en
  • DE729170C - Safety device for fluid brakes, especially for motor vehicles : de en
  • DE729037C - Film guide for motion picture projector : de en
  • FR877479A - Improvements to acetylene generators : en fr
  • GB549793A - Improvements in or relating to vehicle bodies : en
  • US2304511A - Bedstead : en
  • DE729117C - Method for preventing valve seat cracks : de en
  • DE729178C - Conveyor chute for conveying powdery or fine-grained bulk goods, through whose porous bottom a gaseous pressure medium is introduced into the conveyed goods : de en
  • DK60403C - Grinding machine with Paint container moved in Circle or Elliptical oscillations. : da en
  • FR877608A - Rosin Curing Process : en fr
  • DE729251C - Breast pump : de en
  • US2304119A - Knuckle joint lock : en
  • US2304160A - Elevator signal machine and system : en
  • CA409217A - Variable speed mechanism : en fr
  • DK60398C - Device with resilient bed bases. : da en
  • DE728887C - Process for the production of pigment pastes : de en
  • CA409202A - Photo electric device : en fr
  • GB549777A - Improvements in sliding windows : en
  • US2304100A - Preparation of tertiary carbinols of the cyclopentanophenanthrene series : en
  • US2304346A - Rim and valve stem arrangement : en
  • CA409099A - Stencil film : en fr
  • US2304232A - Method and means for controlling drilling muds : en
  • US2304342A - Apparatus for packing units of material : en
  • US2304307A - Safety razor box : en
  • US2304400A - Snap switch : en
  • US2304488A - Dispensing apparatus for liquefied gas : en
  • FR877632A - Method of using condensation water in steam installations, in particular in railway cars, and device for implementing this method : en fr
  • US2304149A - Lasting machine : en
  • US2304199A - Adjustable ambulance chair : en
  • FR877558A - Sewage disposal device on board ships : en fr
  • FR877579A - Process for manufacturing electrodes for electric cathodic luminescence lamps or tubes : en fr
  • CA409155A - Frequency control device : en fr
  • US2304250A - Fuse link : en
  • US2304499A - Cutting device : en
  • US2304491A - Relief valve : en
  • US2304563A - Process for the production of racemic menthol : en
  • US2304599A - Alternating current motor : en
  • DE729284C - Method for connecting the individual layers of composite pipes bent from metal strips : de en
  • CA409207A - Vitamin containing emulsion : en fr
  • US2304684A - End construction for paper containers : en
  • CA409186A - Compressor control means : en fr
  • USD134537S - Design for a deck of playing cards : en
  • CA409144A - Fabric bag : en fr
  • DE729089C - Testing device for oxygen breathing apparatus : de en
  • DE729157C - Sun and rain protection roof : de en
  • FR877611A - Hand pliers for perforating thin sheets of various materials : en fr
  • US2304072A - Wrench : en
  • US2304374A - Safety device : en
  • US2304127A - Mop : en
  • FR877417A - Cooling system for forced circulation boiler : en fr
  • US2304687A - Process for the production of polymeric compounds : en
  • DE729051C - Device for uniform hardening of glass plates, etc. : de en
  • DE729219C - Filling device for sugar mass flow o. The like. : de en
  • US2304331A - Sound recording apparatus : en
  • GB549890A - Electron camera : en
  • GB549843A - Improvements in or relating to parachutes : en
  • USD134534S - Design fob a bumperette : en
  • US2304575A - Footwear-pressing apparatus : en
  • US2304298A - Chair bed : en
  • US2304279A - Motor : en
  • US2304063A - Window construction : en
  • US2304691A - Windshield defroster : en
  • DE728997C - Shooter driver guide for loom looms : de en
  • DE729088C - Respiratory protection device that can be used as a filter device or oxygen device : de en
  • FR877453A - Tuning device for radio receivers of the superheterodyne type : en fr
  • FR877610A - Oscillating Sidecar Motorcycle : en fr
  • US2304528A - Waterproof container latch : en
  • US2304062A - Window construction : en
  • US2304721A - Hydraulic transmission : en
  • US2304406A - Rotary motor : en
  • US2304434A - Projecting device : en
  • US2304760A - Piezoelectric crystal element : en
  • CA409118A - Electric clock : en fr
  • DE728979C - Device for automatic opening and closing of sliding gates, especially property and garage doors : de en
  • CA409085A - Electric boiling plate : en fr
  • US2304474A - Heat treatment of textile fabrics : en
  • US2304480A - Building assembly and bracket therefor : en
  • US2304328A - Smoking pipe : en
  • US2304756A - Combination display rack and storage cabinet : en
  • US2304677A - Dandelion extractor : en
  • CA409173A - Motor control system : en fr
  • US2304207A - Electronically controlled time delay system : en
  • US2304612A - Lock : en
  • AU116197B2 - Packaging : en
  • CA409262A - Brake mechanism : en fr
  • FR877564A - Electric heating process : en fr
  • CA409130A - Surface covering material curing process : en fr
  • US2304737A - Mass clamp for gravity meters : en
  • FR877423A - Device for fixing the shutter of headlights and lights to the casing, in particular for vehicles : en fr
  • US2304253A - Circuit breaker : en
  • USD134509S - Design for a pneumatic drill : en
  • US2304089A - Process of producing artificial fibrous material : en
  • US2304202A - Lighting fixture : en
  • US2304221A - Drying apparatus : en
  • US2304476A - Food and beverage mixer : en
  • DE729205C - Method and mold for casting plates or similar large-area objects made of aluminum or magnesium alloys : de en
  • US2304248A - Liquor treating apparatus : en
  • US2304510A - Box-making machine : en
  • US2304345A - Traffic marker : en
  • DE729128C - Seal made of elastic material for rotating shafts or rods going back and forth : de en
  • FR877455A - Condensation products and process for preparing these products : en fr
  • US2304685A - Filament drier : en
  • FR877442A - Ring body heating chamber : en fr
  • FR877545A - Anti-theft device for bicycles : en fr
  • FR877414A - Converter, switch or electrical machine with mechanical contacts actuated in synchronism : en fr
  • CA409238A - Radio receiver remote control : en fr
  • FR877541A - Damping effect drawbar : en fr
  • FR877592A - Method for inserting additions and modifications of dictations recorded by the magnetic sound process : en fr
  • CA409216A - Shelf bracket : en fr
  • FR877475A - Oscillating coil driver intended especially for high-sounding loudspeakers : en fr
  • FR877537A - Manufacturing process of oxide gels : en fr
  • GB549822A - Improvements in or relating to knitted structures : en
  • FR877643A - Improvements to speed modulated electron tubes : en fr
  • GB549796A - Improvements in x-ray and other high tension electrical apparatus : en
  • US2304090A - Copper oxide rectifier : en
  • US2304483A - Electrical insulator : en
  • US2304098A - Process of preparing zinc peroxide : en
  • DE729015C - Circuit arrangement for single or double current operated local circuits of relay transmissions in telegraph systems : de en
  • US2304145A - Catch operator : en
  • AU400341A - Improvements in or relating to boxes, cases andthe like : en
  • AU116203B2 - Improvements in or relating to boxes, cases andthe like : en
  • GB549812A - Improvements in or relating to the manufacture of shoes : en
  • CA409116A - Sheet material clamping device : en fr
  • US2304362A - Interlocking means for boxes : en
  • US2304453A - Water softener : en
  • US2304561A - Liquid contact circuit closer : en
  • CA409157A - Synchronous motor control system : en fr
  • CA409244A - Television receiver : en fr
  • DE728989C - Teaching for marking large standard characters, numbers, etc. : de en
  • CA409200A - Classifying apparatus : en fr
  • CA409212A - Wheel balancing means : en fr
  • US2304128A - Fluid catalyst process and apparatus : en
  • US2304389A - Bearing mounting : en
  • US2304218A - Holding device for loom let-off mechanism : en
  • US2304681A - Container : en
  • DE728978C - Process for the preparation of durable suspensions of the anterior pituitary lobe hormones : de en
  • AU372341A - Improved means for admitting fuel to internal combustion engines : en
  • CA409111A - Lubricating apparatus coupling : en fr
  • FR877649A - Packaging for products subjected to maturation or aging of a bacterial or other nature : en fr
  • US2304390A - Coupling : en
  • US2304465A - Refrigerator with deep freezing chamber : en
  • DE729226C - Ammunition container for aircraft : de en
  • CA409204A - Vibrator current converting system : en fr
  • US2304455A - Dispensing machine : en
  • US2304666A - Method of making universal joint yokes : en
  • DE729265C - Method and device for operational monitoring of the grinding process in Dutch and similar machines : de en
  • DE728876C - Process for the production of oily, fat or waxy products : de en
  • DE729160C - Extendable tripod leg : de en
  • CA409148A - Wood flooring : en fr
  • US2304314A - Magazine safety razor : en
  • US2304134A - Frequency comparator : en
  • US2304552A - Electric regulator : en
  • US2304643A - Automobile ventilating device : en
  • AU339041A - Frequency modulation receivers : en
  • US2304379A - Glassware distributor for lehrs : en
  • CA409119A - Textile decorating process : en fr
  • CA409146A - Strip coating machine : en fr
  • US2304163A - Modulation system : en
  • US2304213A - Take-up for intermittently fed strips or sheets : en
  • DE729102C - Device for regulating the pressing pressure generated by spring force in a ring roller press : de en
  • FR877481A - Soap substitute and its preparation process : en fr
  • FR877585A - Manufacturing process of cork agglomerates : en fr
  • GB549827A - Improvements in or relating to control devices for superchargers : en
  • CA409167A - Timer connection block : en fr
  • FI19446A - Suglåda för vira-pappersmaskiner eller liknande Maskiner : en fi
  • DE729075C - Barracks, in particular made of light metal : de en
  • US2304478A - Process of treating materials comprising albumin, such as hair, bristles and the like : en
  • US2304112A - Sensitizing dyes containing thienyl thiazole radicals and intermediates therefor : en
  • US2304368A - Vehicle brake : en
  • US2304753A - Rotary feeding device : en
  • CA409153A - Ladle tilting apparatus : en fr
  • US2304104A - Therapeutical zinc peroxide : en
  • US2304252A - Process of insolubilizing hydroxylcontaining sizes : en
  • US2304257A - Floor cleaning and polishing device : en
  • DE729043C - Process for obtaining gasolines with good knocking properties : de en
  • DE728926C - Harmless meshes of the hardeners in water in textile treatment baths : de en
  • DE728934C - Rotary plate with an attachment plate loosely placed on the footplate : de en
  • DE729138C - Pressing process for the production of lighters for lighters : de en
  • FR877576A - Beater device intended for the manufacture of cellular concrete : en fr
  • FI19433A - Värmeväxlare av spiralplåtstypen eller liknande jämte sätt för tillverkning av dylika : en fi
  • GB549837A - A device for sharpening safety razor blades : en
  • AU377541A - Improvements inthe purification of hot impure gases : en
  • CA409154A - Electron tube : en fr
  • US2304502A - Dyeing with vat dyestuffs : en
  • US2304729A - Phenolic amido resin : en
  • US2304527A - Scraper : en
  • DE729147C - Magnetic field tube for a receiver : de en
  • CA409233A - Engine starter : en fr
  • DE729191C - Stamp plate for pressure vessel : de en
  • US2304568A - Vulcanization accelerator : en
  • DE729008C - Process for the separation of non-magnetizable metal bodies by magnetic means : de en
  • FR877647A - Silver and copper alloy for electrical contacts : en fr
  • US2304171A - Rake : en
  • US2304273A - Combined document photographing and endorsing machine : en
  • US2304746A - Pulsator for milking machines : en
  • US2304706A - Attachment for oil burners : en
  • US2304725A - Automatic stenciling machine : en
  • US2304234A - Card marking machine : en
  • US2304296A - Tray guard rail protector : en
  • AU372241A - Improvements relating to infusion : en
  • DE728886C - Process for the preparation of copper complex compounds of substantive azo dyes : de en
  • DK60404C - Trugsvingmølle. : da en
  • DK60406C - Valve device for Inhalers and Oxygen Treatment Devices. : da en
  • FR877619A - Uniform Tobacco Feeding System For Cigarette Making Machine : en fr
  • US2304692A - Side guard for conveyers : en
  • CA409113A - Tractor trailer vehicle : en fr
  • CA409082A - Washing machine : en fr
  • US2304291A - Wheel suspension : en
  • US2304192A - Refrigeration of hygroscopic material : en
  • US2304256A - Treatment of well drilling fluids : en
  • US2304319A - Toothbrush : en
  • US2304461A - Injection molding apparatus : en
  • US2304728A - Stabilization of polymerizable vinyl aromatic compounds : en
  • GB549848A - Improvements in or relating to automatic telephone exchange systems : en
  • FR877477A - Metal cans crimping process : en fr
  • FR877586A - Process for producing removed or reserved designs on dyed fabrics made from organic fibrous materials : en fr
  • US2304609A - Pipe fitting : en
  • US2304770A - Ranging device : en
  • US2304261A - Sock saver : en
  • US2304352A - Separation of materials of different specific gravities : en
  • FR877603A - Process for manufacturing neutral gray polarization filters : en fr
  • GB549804A - Ignition plugs for internal combustion engines : en
  • CA409175A - Measuring instrument : en fr
  • GB549886A - Improvements in or relating to apparatus for the production of photographic reflex copies : en
  • DE729016C - Circuit arrangement for alternating current telegraphy : de en
  • DE728940C - Auxiliary pump for fuel injection engines : de en
  • US2304611A - Carrier wave signal transmission system : en
  • CA409205A - Window regulator : en fr
  • CA409249A - Capillary active compound : en fr
  • US2304289A - Conversion of hydrocarbon oils : en
  • US2304377A - Automatic frequency control system : en
  • US2304661A - Water treating apparatus : en
  • US2304652A - Spring structure : en
  • US2304545A - Wave transmission network : en
  • US2304744A - Dust disposal unit : en
  • US2304391A - Cement : en
  • US2304741A - Sewing machine lubricating means : en
  • FR877431A - Support for cooking vessels to be heated on gas stoves : en fr
  • GB549874A - Improvements in circular saw machines for removing surgical bandages and the like : en
  • FR877542A - Ball toothed gears : en fr
  • US2304720A - Overhead carrier system : en
  • DE729095C - Spaindelantireb with rotatable spindle for ship lifts with weight compensation : de en
  • FR877471A - Patient stretcher with support pads : en fr
  • FR877520A - Canvas gas filter : en fr
  • US2304538A - Method and apparatus for operating steam generators : en
  • US2304564A - Yarn package and method and apparatus for producing same : en
  • CA409203A - Vibrator current converting system : en fr
  • DE728930C - Oxide cathode exciter for very short waves : de en
  • USD134544S - Shield for billiard table pockets or the like : en
  • CA409278A - Acetic acid recovery : en fr
  • US2304193A - Waste and dust mop cleaning can : en
  • CA409263A - Nail cutting machine : en fr
  • US2304540A - Generating apparatus : en
  • US2304369A - Condensation product : en
  • DE729012C - Plunger roller coupling for writing machines : de en
  • DE729240C - Flashlight to be attached to the steel helmet : de en
  • US2304411A - Refrigerating apparatus : en
  • FR877487A - Locking device for cycles : en fr
  • FR877598A - Process for preparing solutions or pastes based on polyamides : en fr
  • USD134559S - Design for a dress : en
  • DE729162C - Slide rule : de en
  • FR877613A - ultra-short wave transmitter in reaction arrangement : en fr
  • DE728972C - Resistance seam welding machine with a turret head carrying several electrodes : de en
  • GB549897A - Improved manufacture of double-walled articles : en
  • US2304117A - Container transfer equipment for vehicles : en
  • GB549799A - Manufacture of organic halogen-containing compounds : en
  • US2304075A - Bulldozer : en
  • US2304621A - Power brake : en
  • US2304138A - Control of simultaneous endothermic and exothermic reactions : en
  • US2304288A - Tung oil substitute : en
  • FR877640A - Control derived from that of the lower roll for the upper roll of a rolling stand : en fr
  • GB549851A - Improvements in or relating to the softening or purification of water : en
  • DE729091C - Auxiliary control device : de en
  • DE729047C - Electric rod heater : de en
  • DE729239C - Luminaire suspension for electrical outdoor lighting systems : de en
  • GB549780A - Improvements in or relating to means for connecting agricultural implements to tractors : en
  • US2304141A - Molding machine : en
  • US2304500A - Chimney : en
  • CA409152A - Machine tool power feed mechanism : en fr
  • DE729136C - Method for producing durable lettering or the like, in particular on metal parts, plastics, etc. : de en
  • US2304620A - Fluid operated slowdown mechanism for presses : en
  • US2304761A - Variable permeability tuning device : en
  • DE729223C - Switch-on device for bicycle alternators : de en
  • US2304365A - Tractor : en
  • CA409193A - Cutting tool with a tungsten carbide tip : en fr
  • US2304351A - Method of manufacturing primary carbon : en
  • FR877548A - Automatic clamping device for holding laundry and upholstery : en fr
  • GB549807A - Improvements in or relating to shipbuilding : en
  • CA409115A - Phonograph record changer : en fr
  • US2304065A - Prod : en
  • US2304380A - Hydraulic valve : en
  • US2304541A - Plastic offset press printing plate and method of making same : en
  • CA409097A - Ship propeller reaching means : en fr
  • CA409106A - Conveyance safety control device : en fr
  • US2304323A - Pressure operated throttling valve : en
  • USD134535S - Design for a clip ob similar : en
  • CA409225A - Electric motor : en fr
  • FR877590A - Aircraft propellant device : en fr
  • FR877581A - Self-tightening chuck : en fr
  • DE728959C - Mashing process for the production of alcohol-free or low-alcohol beers or beer-like beverages : de en
  • US2304085A - Explosion-proof lighting unit : en
  • US2304508A - Averaging device : en
  • GR10009B - ECONOMIC FOUNDRY OVEN. : el en
  • DE729195C - Ring goniometer : de en
  • DE729245C - Braun cathode ray tubes : de en
  • US2304109A - Fluid conditioning system : en
  • FR877567A - Equipment for the dehydration of tar and the continuous production of road tar : en fr
  • DE729182C - Additional device for dough processing, especially for the preparation of sour foam in dough kneading machines with few stirring arms : de en
  • US2304303A - Flow valve for wells : en
  • US2304059A - Nickel anode : en
  • US2304415A - Toy bank : en
  • US2304524A - Control for shovels : en
  • USD134527S - Holder for memorandum fads or the like : en
  • CA409163A - Circuit breaker : en fr
  • CA409166A - Screw stick head burnishing method : en fr
  • US2304459A - Hand tool : en
  • US2304182A - Method of forming metallic films : en
  • US2304498A - Typewriting machine : en
  • US2304135A - Modulating system : en
  • US2304264A - Apparatus for pulverizing and classifying materials : en
  • DE729168C - Device for mechanically locking an adjusting piston in a pressure cylinder, in particular in the case of adjusting devices on aircraft : de en
  • US2304539A - Container closure : en
  • US2304577A - Manufacture of strip rubber : en
  • CA409197A - Tire valve inside : en fr
  • DE729203C - Stretcher to be carried by two porters : de en
  • DE729257C - Money-changing goods dispensing device or the like with several coin insertion slots intended for different coin types : de en
  • FR877538A - Acetylene generator device particularly intended to actuate all explosion engines and in particular those of motor vehicles : en fr
  • US2304579A - Method and means for making refrigerated comestibles : en
  • US2304580A - Grinding machine : en
  • US2304114A - Faucet attachment or coupling : en
  • US2304467A - Machine for forming angularly bent drinking tubes : en
  • FR877512A - Coupler or combiner control system for electric vehicle engine : en fr
  • DE729041C - Device for emptying a pulp mixing chamber : de en
  • DE729063C - Electric track closer with position compensation : de en
  • FR877569A - New process for the electrical connection of dissimilar metal conductors : en fr
  • US2304076A - Wheeled scraper : en
  • US2304767A - Treatment of organic materials : en
  • FR877401A - New weapon : en fr
  • US2304418A - Transportation equipment : en
  • DE728951C - Device for automatic temperature control of water-heated devices : de en
  • DE729273C - Timers, especially timers working according to the echo method : de en
  • FR877460A - Manufacturing process of pyridin-3-acetic acid or its derivatives : en fr
  • GB549831A - Improvements in or relating to electro-magnetic switches : en
  • US2304403A - Match book : en
  • US2304587A - Two-way double stepladder : en
  • DE729090C - Device for checking the water absorption capacity of gas mask clear panes : de en
  • DE729204C - Disinfectants and preservatives : de en
  • US2304616A - Hydrotherapy apparatus : en
  • AU377341A - Improvements relating to oil burning heating stoves : en
  • US2304631A - Receptacle : en
  • US2304422A - Mowing machine : en
  • US2304340A - Method of making sliders for slide fasteners : en
  • US2304653A - Operation of catalytic processes : en
  • US2304682A - Surgical baker : en
  • CA409265A - Shoemaking method and apparatus : en fr
  • US2304327A - Calculator : en
  • CA409159A - Liquid heater : en fr
  • US2304189A - Hydrocarbon conversion : en
  • CA409252A - Baked goods and composition : en fr
  • FR877458A - Rotary device for drying cut pasta : en fr
  • FR877591A - Adjustment device of a fuel pump : en fr
  • US2304456A - Self-cleaning orifice member : en
  • US2304460A - Dial test indicator : en
  • US2304287A - Manufacture of grease-resistant paper : en
  • DE728937C - Inevitably acting, retractable protection device for cellar hatches : de en
  • DK60399C - Process for the production of transparent plastics by heat condensation of polyamide-forming compounds. : da en
  • US2304123A - Embossed decorative fabric : en
  • US2304330A - Apparatus for operating upon lateral walls in earth borings : en
  • GB549857A - Improvements in and relating to rotary valves for internal combustion engines : en
  • DE728935C - Lounge furniture : de en
  • DE729235C - Booking engine : de en
  • DE729229C - Chest protectors or bras, especially for bathing suits : de en
  • GB549883A - Improvements in or relating to containers for liquids : en
  • DE729282C - Ventilation system for grains u. like : de en
  • US2304472A - Control mechanism for internal combustion engines : en
  • JPS1714325Y1 - : ja
  • US2304110A - Production of titanium oxide pigments : en
  • CA409218A - Production of alpha-naphthylacetic acid, its esters and salts : en fr
  • GB549869A - An improved spring hinge : en
  • DE729173C - Car percussion fuse for throwing mines or similar projectiles with a fuse : de en
  • FR877595A - Road vehicle for railway wagons and heavy loads with horizontal position of the springs : en fr
  • US2304322A - Hockey stick : en
  • USD134542S - Design foe a belt : en
  • US2304464A - Collar stay : en
  • FI19437A - Portable load carrier on the back : en fi
  • US2304504A - Dual lens construction : en
  • US2304629A - Machine for forming plastic bindings : en
  • US2304627A - Switching apparatus : en
  • US2304633A - Electric recording and reproducing system : en
  • DE728973C - Regulating transformer or regulating reactor for multi-point arc welding : de en
  • GB549774A - Improvements in or relating to vehicle bodies : en
  • DE728933C - Device for solidifying curtain sheets, tarpaulins, or the like. : de en
  • DE729207C - Spring upholstery edge frame for the springs of top mattresses : de en
  • DK60408C - Skudrigellaas. : da en
  • FR877597A - Improvements to controlled discs of friction clutches : en fr
  • US2304272A - Ball cock : en
  • US2304646A - Brake control for slusher hoists : en
  • FI19436A - Härdade, glycerin innehållande tillverkningar : en fi
  • DE729119C - Use of lead alloys for sockets : de en
  • DE729237C - Arrangement for voltage, frequency and power measurement with short waves : de en
  • DE729271C - Elastic vehicle wheel : de en
  • GB549867A - Improvements in or relating to means for connecting agricultural implements to tractors : en
  • DE728976C - Device for cleaning chimneys : de en
  • FR877516A - Air dash-pot for time switches and the like : en fr
  • FR877425A - Headlight with tachometer housed inside : en fr
  • FR877621A - Method and apparatus for creating new sound effects : en fr
  • US2304308A - Dispersible composition : en
  • FR877583A - Photoelectric equipment for accurately locating the position of an object bearing a division : en fr
  • US2304521A - Method of closing : en
  • DK60400C - Branch holder for Fruit Trees. : da en
  • FI19438A - Statur for the purpose of the office machine tool on the board or on the floor : en fi
  • FR877600A - Brake and steering device for vehicles with endless chains : en fr
  • FR877412A - Box for packaging pharmaceutical ampoules or other applications : en fr
  • US2304115A - Freight vehicle : en
  • US2304333A - Building construction : en
  • US2304249A - Detachable truck unloader : en
  • DE728823C - Storage box for slides, micrographs or the like. : de en
  • US2304197A - Tin recovery process : en
  • US2304082A - Reversible slider : en
  • US2304617A - Electric motor control : en
  • USD134532S - Mastrangelo chair : en
  • US2304263A - Manufacture of adhesive films : en
  • US2304718A - Structural member and method of fabricating the same : en
  • CA409161A - High frequency modulation system : en fr
  • US2304708A - Douche : en
  • DE729033C - Friction gear change transmission : de en
  • FR877445A - Lamp device : en fr
  • US2304429A - Casein manufacture : en
  • CA409192A - Insecticide : en fr
  • CA409251A - Golf ball : en fr
  • US2304699A - Pneumatic shoulder pad for garments : en
  • CA409194A - Hydrostatic brake : en fr
  • CA409232A - Liquid de-aerating apparatus : en fr
  • US2304445A - Screen for lighting fixtures : en
  • US2304582A - Die for drawing sheet metal articles : en
  • US2304726A - Indicating mechanism for paint striping machines : en
  • DE729113C - Reception arrangement for altitude measurements on aircraft : de en
  • DE729023C - Multi-phase relay based on the Ferraris principle : de en
  • CA409222A - Oil burner : en fr
  • FR877627A - Multi-tool revolving turret with adjustable tool holders, for application to machine tools, and in particular to carriage lathes or similar : en fr
  • US2304211A - Liquid level responsive means : en
  • DE729071C - Process for the polymerization of fatty oils : de en
  • GB549781A - Improvements relating to fuel injection systems for two-stroke internal combustion engines : en
  • US2304562A - Ceramic insulating composition : en
  • US2304606A - Electric switch : en
  • DE729103C - Method and device for operating cell drum rotary filters and rotary filters in general with a filter cake take-off roller : de en
  • US2304397A - Catalytic cracking : en
  • US2304420A - Scissors sharpener : en
  • US2304268A - Gas and air operated valve : en
  • US2304337A - Fish machine : en
  • DE729192C - Circuit for frequency tripling by means of a distorting, non-linear four-pole connection : de en
  • CA409105A - Game canal device : en fr
  • DE729034C - Method and device for the preparation of grain, maize or legumes for the purpose of mixing : de en
  • DE729084C - Speed change transmission : de en
  • DE728963C - Process for the production of anhydrous magnesium chloride from magnesium chloride leaches or higher magnesium chloride hydrates : de en
  • CA409183A - Fluid pressure system valve device : en fr
  • US2304215A - Wind wheel : en
  • US2304517A - Mailing device : en
  • CA409089A - Expanding fish hook : en fr
  • US2304719A - Manufacture of titanium dioxide pigments : en
  • GB549788A - Improvements in tubular elements having a base, end cap or like fitting : en
  • DE729003C - Device for generating several electron beams in a cathode ray tube : de en
  • FR877404A - Individual control device for machine tools : en fr
  • FR877499A - Elastic transmission : en fr
  • FR877408A - Process for the preparation of an alumina-pectin adsorbate, effective primarily as an emulsifying and cleaning agent : en fr
  • FR877635A - Azo dyes and process for preparing these dyes : en fr
  • US2304099A - Process for isolating vegetable proteins : en
  • US2304705A - Portable tray or table : en
  • US2304654A - Conversion of hydrocarbons : en
  • FR877415A - Switches, converters or electrical machines operating with periodically actuated contacts : en fr
  • DE729232C - Cover rail for letter folder u. like : de en
  • FR877439A - Switchgear for transformers, reactors or capacitors : en fr
  • US2304177A - Legging : en
  • US2304549A - Reclaimed rubber : en
  • GB549853A - Improvements in and relating to packing open-mouth paper sacks : en
  • US2304404A - Automatic pressure loss cutoff valve : en
  • DE729189C - Process for the preparation of light colored aromatic sulfonation products containing alkyl groups : de en
  • CA409182A - Rail sanding control device : en fr
  • DE729040C - Device for monitoring the degree of filling of box feeders or the like. : de en
  • FR877626A - License plate with interior lighting, especially for vehicles : en fr
  • CA409224A - Composite metal article : en fr
  • US2304325A - Cloth cleaner for sifters and the like : en
  • US2304743A - Signboard hanger : en
  • USD134555S - Design fob a card blank fob gbeeting cards, calling cards, and the like : en
  • CA409228A - Marking machine : en fr
  • CA409158A - Audio frequency amplifier : en fr
  • CA409243A - Glass batch feeding apparatus : en fr
  • US2304214A - Dispensing container and top closure therefor : en
  • US2304638A - Circuit interrupter : en
  • US2304168A - Making hydrocarbon conversion catalyst : en
  • US2304376A - Lister plow : en
  • US2304387A - Illuminated handbag : en
  • US2304683A - Hamper manufacture : en
  • DE729155C - Support frame for stretchers : de en
  • US2304503A - Action toy : en
  • CA409164A - Moulded sheet manufacture : en fr
  • DE728863C - Process to prevent the threading of bread and pastries : de en
  • GB549861A - Improvements in and relating to electric transformers : en
  • DE729134C - Device for unscrewing the filling screws from bullets : de en
  • GB549847A - Improvements in or relating to radio navigational instruments : en
  • GB549854A - Improvements in and relating to the manufacture of bread : en
  • DE729241C - Relay device : de en
  • GB549819A - Improvements in or relating to combing machines : en
  • GB549855A - Improvements in and relating to hats and caps : en
  • US2304201A - Vehicle truck and suspension system therefor : en
  • DE729165C - Process for the production of refined metal pipes : de en
  • US2304769A - Communication system : en
  • GB549858A - Improvements in and relating to shaft couplings : en
  • FR877406A - Hydraulic device for raising and lowering tillage implements pulled by a tractor : en fr
  • USD134508S - Design for a bracelet os like article : en
  • DE729118C - Device for preheating or cooling centrifugal casting molds : de en
  • DE728987C - Brake force regulator for air brakes, especially of trailer trucks : de en
  • DE729005C - Cooling device for liquid-cooled internal combustion engines, especially in aircraft : de en
  • US2304179A - Speech transmission system : en
  • US2304515A - Theft preventing device : en
  • FR877580A - Device for periodic opening and closing of contacts or switches : en fr
  • FR877513A - Improvements to devices for obtaining recesses, notches, grooves or other : en fr
  • AU116194B2 - Photoelectric phonograph : en
  • US2304715A - Loose-leaf binder : en
  • US2304416A - Dental alloy : en
  • US2304471A - Manufacture of yeast : en
  • US2304614A - Template for fashioning elements of roof trusses and like structures : en
  • US2304060A - Projectile : en
  • US2304156A - Organic compound and process of preparing the same : en
  • US2304187A - Manufacture of balanced motor fuel and aviation safety fuel : en
  • US2304548A - Reclaimed rubber : en
  • US2304522A - Advertising pencil, pen, or like styliform devices : en
  • GB549782A - Method of and apparatus for preparing facsimile master copies : en
  • CA409138A - Manifolding machine : en fr
  • DE728986C - Method and device for increasing the image frequency in cinematographic recording apparatus with optical compensation : de en
  • DE729024C - Locking device for the heating circuit of glow cathode tubes : de en
  • GB549859A - Improvements in or relating to telephone instruments : en
  • DE729291C - Superheater arranged between two tube groups of a superheater : de en
  • GB549872A - Improvements in lock stitch sewing machines : en
  • DE728920C - Production of a fluorescent substance : de en
  • USD134522S - Car stop or similar device : en
  • FR877416A - Compositions based on aluminum soaps : en fr
  • FR877452A - Improvements in devices intended for the transformation of very short wavelengths : en fr
  • GB549887A - Improvements in, and relating to the manufacture of, copying paper : en
  • US2304344A - Educational appliance : en
  • US2304358A - Alarm apparatus : en
  • US2304697A - Mechanical toy : en
  • USD134513S - Design for a cookie jab : en
  • FR877522A - Process for manufacturing coal agglomerates and in particular charcoal for gasifiers and products obtained by this process : en fr
  • FR877532A - New sulfonation products, their manufacturing process and their use : en fr
  • FR877428A - Seed separator seeder : en fr
  • US2304361A - Method of making paper : en
  • US2304381A - Sintering machine and pallet : en
  • US2304462A - Display stand : en
  • US2304530A - Brake shoe burnisher : en
  • DK60392C - Device by Lasker for Insulation of Rail Strings. : da en
  • US2304537A - Preparation of alpha-chlormethyl naphthalene : en
  • US2304645A - Means for indicating defects in threads : en
  • US2304673A - Process of dyeing panama hats : en
  • AU371341A - Improvements in amplifiers : en
  • DE729283C - Automatic control device for the lifting tables of rolling stands : de en
  • FR877478A - Cufflink : en fr
  • FR877514A - Saddle for cycles and others : en fr
  • FR877456A - advanced evaporator for industrial fresh water production : en fr
  • FR877430A - Rolling device for sliding doors : en fr
  • CA409191A - Spindle bearing : en fr
  • FR877604A - Loudspeaker membrane : en fr
  • FR877650A - Colorimeter : en fr
  • US2304375A - Change speed transmission mechanism : en
  • US2304690A - Keyhole illuminator : en
  • FR877446A - Improvements made to dry ash removal devices for gasifiers or the like, in particular those for vehicles and small installations : en fr
  • FR877511A - Method of assembling armatures for electric air capacitors and the like and capacitors obtained by applying this method : en fr
  • GB549840A - Improvements in conduits for electric cables : en
  • US2304534A - Venetian blind : en
  • US2304359A - Refrigerating apparatus : en
  • US2304764A - Encased electrical unit : en
  • US2304686A - System of ice removal : en
  • DE728949C - Pull magnet control for driving switches, especially for driving switches of electrically operated vehicles : de en
  • FR877544A - Metal saddle for velocipede : en fr
  • US2304732A - Sealing means for joint structures linking movable members : en
  • US2304309A - Vertical-axis canister-type vacuum cleaner : en
  • AU116214B2 - Improved photographic emulsions : en
  • DE729114C - Lubricant for gas compressors and gas pumps : de en
  • GB549791A - Improvements in and relating to surgical specula : en
  • US2304220A - Telephone system : en
  • US2304688A - Rotor for synchronous motors : en
  • DE729096C - Storm-protected wind power plant : de en
  • GB549805A - Improvements relating to dynamo-electric machines having sliprings : en
  • CA409199A - Liquid clarification apparatus : en fr
  • AU116209B2 - Improvements in amplifiers : en
  • US2304295A - Printing telegraph system and apparatus : en
  • US2304591A - Flexible cheese package : en
  • US2304239A - Production of primary alkyl chlorides : en
  • FR877535A - fixed or removable scrubbers constantly supplying the engine regardless of the fuels burned in the gasifier : en fr
  • US2304095A - Method of and apparatus for inducing and sustaining sleep : en
  • US2304622A - Demountable body : en
  • US2304701A - Sword knot : en
  • CA409149A - Wood finishing machine : en fr
  • CA409201A - Electron multiplier : en fr
  • DE728873C - Process for the production of washable and waterproof fabrics : de en
  • US2304558A - Cinematographic apparatus : en
  • CA409184A - Compressor control means : en fr
  • CA409272A - Cathode ray device : en fr
  • DE729181C - Electrostatic separator with wire-shaped spray electrode : de en
  • DE729227C - Method and device for producing pore-free, clay-containing masses : de en
  • CA409171A - Circuit interrupter : en fr
  • DE728960C - Device for determining the driving pressure of coal during its coking : de en
  • DE729018C - Polarized flat relay with only one excitation coil, especially for telegraphy : de en
  • FI19430A - Restriction of rotation by means of a rotating or rotating cylinder according to the rotation of the rotation cylinder : en fi
  • AU334941A - Improvements in valves used for engineering purposes : en
  • US2304175A - Adjustable spring sash balance : en
  • US2304398A - Catalytic cracking : en
  • AU116195B2 - Improvements inthe purification of hot impure gases : en
  • CA409124A - Gas blast circuit breaker : en fr
  • US2304131A - Pump jack circuit : en
  • DE728998C - Device for weaving double velvet and double plush from smooth threads using a spring-loaded rod tensioning the pile threads : de en
  • AU379941A - Improvements relating tothe hermetic sealing of metal into vitreous materials : en
  • US2304254A - Manifold heater : en
  • DE729042C - Device for the production of a verzeugsfaehigen sliver from synthetic thread bands : de en
  • US2304672A - Material handling apparatus : en
  • CA409087A - Pipe thread cutting apparatus : en fr
  • FR877574A - Process for manufacturing glue or adhesive with seaweed : en fr
  • DE729224C - Filling head for liquid container : de en
  • GB549849A - A method of making pen nibs : en
  • GB549876A - Improvements in or relating to collecting mechanism for cigarettes, filter wads and other rod shaped articles : en
  • AU116221B2 - Improvements relating to infusion : en
  • DE729029C - Process for the production of condensation products : de en
  • DE729078C - Procedure for testing viscose for spinning readiness : de en
  • GB549815A - Improvements in and relating to gang channel nut structures : en
  • DE729253C - Folding shutter guide : de en
  • US2304247A - Carburetor : en
  • US2304588A - Fluid pressure generation : en
  • US2304649A - Material handling apparatus : en
  • US2304222A - Flashlight switch : en
  • FR877476A - Motor assembly with adjustable speed : en fr
  • DE728984C - Device for producing photographic difference images : de en
  • US2304632A - Wrinkled surface article : en
  • FR877588A - Method and devices for reducing wind stress on conductors of overhead power lines and similar structures : en fr
  • US2304394A - Oil well tubing coupling : en
  • FI19452A - Procedure and apparatus for handling fibrous matter : en fi
  • US2304132A - Management instrument : en
  • GB549882A - Measuring instruments : en
  • DE729255C - Indicator, the drum of which rotates freely at a practically constant angular speed while the diagram is being recorded : de en
  • DE728945C - Device for displaying the presence of trailers in motor vehicles : de en
  • DE728964C - Manufacture of fluorine-free beryllium chloride : de en
  • CA409126A - Crude oil distillation process : en fr
  • USD134540S - Design for a toy machine gun : en
  • US2304245A - Fluid actuated window operator : en
  • CA409151A - Cellulosic material bleaching method : en fr
  • CA409223A - Knitted garment : en fr
  • FR877646A - Tapping adjustment for steam or gas turbines : en fr
  • USD134541S - Mastrangelo dining booth : en
  • FR877429A - Device for rolling tapes, wires or the like of steel and other metals : en fr
  • CA409220A - Electric signalling system : en fr
  • US2304443A - Apparatus for handling bulk materials : en
  • US2304070A - Hydrocarbon conversion process : en
  • USD134528S - Design fob a display standard : en
  • US2304610A - Process of washing resins : en
  • FR877461A - Magneto ignition : en fr
  • US2304551A - Reclaimed rubber : en
  • US2304665A - Combined hairbrush and comb : en
  • US2304423A - Metal window sash : en
  • FR877508A - High pressure gasifier using all fuels : en fr
  • FR877543A - Washing and cleaning, laundry and toilet products replacing soap and its manufacturing process : en fr
  • US2304592A - Rug cleaning machine : en
  • USD134531S - Fluorescent fixture or similar article : en
  • US2304318A - Lock device for antiskid chains : en
  • US2304710A - Tester for battery containers : en
  • US2304280A - Process of recovering sulphuric acid from spent sulphuric acid : en
  • FR877492A - Multiple combination padlock : en fr
  • GB549838A - Improvements in the production of gases rich in hydrogen : en
  • DE729030C - Compressed air internal combustion engine : de en
  • US2304554A - Method of separating scrapped vulcanized rubber : en
  • DE728977C - Sealing device for regenerative preheater : de en
  • DE729019C - Method for modulating ultra-short waves : de en
  • DE729139C - Gas pressure regulator : de en
  • US2304595A - Self-aligning rod end bearing : en
  • US2304605A - Vacuum regulator for air driven aircraft instruments : en
  • FR877518A - Junction piece for aluminum and copper conductors : en fr
  • US2304212A - Spinning artificial silk : en
  • DE729216C - Bending of pipes made of non-malleable centrifugal cast, such as cast iron : de en
  • USD134523S - Design for a clasp forming pliers : en
  • FR877448A - Preparation of polyamide solutions : en fr
  • FR877497A - Dry acetylene gas generator, in particular for motor vehicles : en fr
  • FR877563A - Improvements to electric vehicles : en fr
  • DE729032C - Bearing for shafts rotating at high speeds : de en
  • DE729081C - Process for the production of a liquid, practically anhydrous fuel produced only from sulphite waste liquor : de en
  • USD134519S - Remote control box for a motion picture display machine : en
  • DE729048C - Carbon wick electrode for melting objects made of quartz or quartz-like, highly siliceous glass by means of the electric arc : de en
  • US2304173A - Chuck and grinding wheel : en
  • USD134533S - Design fob a woven textile fabric : en
  • USD134524S - Design for a cover for tobacco pipes : en
  • FR877560A - Heating device for beds or others : en fr
  • US2304137A - Protective glove : en
  • US2304360A - Electric lifting device : en
  • US2304543A - Fiber separating apparatus : en
  • DE728709C - Drive wheel for caterpillar vehicles : de en
  • US2304482A - Core drill bit : en
  • US2304293A - Stapler : en
  • US2304619A - Repeating fuse device : en
  • DE728975C - Gas generator with a rotating ash pan : de en
  • US2304265A - Gauge slide : en
  • US2304142A - Glass filter : en
  • DE728803C - Process for the preparation of aromatic sulfonamide-substituted antimony compounds : de en
  • DE729122C - Method for the joint examination of transparent objects according to the Schlieren and interference method : de en
  • FR877485A - Filter for gasifiers : en fr
  • FR877641A - Improvements to high frequency equipment : en fr
  • US2304372A - Pump plunger : en
  • FI19440A - Centralograf : en fi
  • CA409177A - Brake control means : en fr
  • CA409274A - Braid covered electric cord : en fr
  • DE729199C - Arrangement for remote control in three-phase networks : de en
  • CA409259A - Electrical shunt : en fr
  • CA409270A - Air filter : en fr
  • CA409275A - Gas cleaning apparatus : en fr
  • US2304084A - Inertia actuated device : en
  • CA409162A - Motor control system : en fr
  • DE728834C - Process for the production of carboxylic acids, alcohols and carboxylic acid esters : de en
  • US2304216A - Typewriting and like machines : en
  • CA409109A - Shoe polishing machine : en fr
  • CA409114A - Collar clip : en fr
  • CA409176A - Condenser bushing : en fr
  • FI19443A - Forwarding provisions for dispersion and for setting dispersion : en fi
  • US2304271A - Wrench for spark plugs and the like : en
  • US2304335A - Process for heat-sensitizing latex : en
  • DE728929C - Automatic regulation of air heaters for several rooms, especially railway vehicles : de en
  • DE729133C - Closure of propellant fillings from mines, projectiles, grenades etc. similar : de en
  • US2304208A - Luminaire for blackout lighting : en
  • US2304355A - Motor drive system : en
  • CA409080A - Golf practice scoring device : en fr
  • DE729098C - Process and furnace for melting glass and the like like : de en
  • DE729179C - Turbine or pump system : de en
  • DE728990C - Mixer : de en
  • DE729150C - Arrangement of a sling spring in the handle of an electric clockwise and counterclockwise rotary switch with snap-action mechanism : de en
  • DE729152C - Grate for coals in kitchen stoves : de en
  • DE729200C - Soap : de en
  • CA409112A - Hair grip : en fr
  • CA409248A - Statistical card comparing machine : en fr
  • CA409147A - Heat exchange conductor : en fr
  • FI19429A - Anordning för hoppackning av ett transportabelt block av löst textilfibergods för detsammas våtbehandling : en fi
  • GB549803A - Process and apparatus for sealing packages : en
  • CA409277A - Aliphatic acid : en fr
  • FI19451A - Heating equipment for use in buildings intended for the drying of peat : en fi
  • FR877562A - Automatic winding mechanism for chronographs and the like : en fr
  • GB549842A - A device for attachment to the port holes of marine vessels to prevent the egress of light while permitting the passage of air therethrough for the purpose of ventilation : en
  • US2304354A - Method of increasing the height of storage tanks : en
  • US2304739A - Electrical prospecting : en
  • CA409084A - Window wiper : en fr
  • CA409258A - Upright piano action : en fr
  • DE729171C - Anti-skid device, especially for rubber-tired motor vehicle wheels : de en
  • US2304315A - Hair curling device : en
  • US2304555A - Trap : en
  • CA409117A - Nail clinching tool : en fr
  • US2304270A - Flotation apparatus : en
  • US2304301A - Method of applying hobnails to shoes : en
  • DE729278C - Device for measuring and displaying the thickness or diameter of workpieces while they are being processed : de en
  • US2304066A - Feeding apparatus for maintaining a constant level of liquid : en
  • US2304103A - Control device : en
  • US2304159A - Combination opener : en
  • US2304194A - Harness cord for looms : en
  • CA409256A - Paper tear-off device for typing apparatus : en fr
  • CA409264A - Shoe assembling machine : en fr
  • CA409235A - Telephone switching apparatus : en fr
  • DE729126C - Hose connection : de en
  • FI19442A - The way to make animal feed : en fi
  • US2304108A - Electric lamp socket : en
  • US2304306A - Sling : en
  • US2304393A - Cooperating hinges : en
  • DE729285C - Stocking tensioner : de en
  • DE728938C - Four-stroke internal combustion engine working with recharging : de en
  • DE729159C - Process for the production of anodes for the production of earth or alkaline earth metals such as aluminum, magnesium, beryllium by molten electrolysis : de en
  • DE728941C - Device for the simultaneous damping of torsional and bending vibrations of rotating bodies : de en
  • DE728946C - Device for receiving can lids to be dried, freshly painted or coated with a liquid sealant : de en
  • DE729017C - Device for transmitting pulses, in particular telegraphic pulses, by means of carrier currents, in which alternating currents of different frequencies are used to transmit the separating and character flow steps : de en
  • FR877507A - Leakproof casing device to facilitate sterilization of wounds, dermatoses and gynecological conditions, also applicable to wet dressings : en fr
  • USD134545S - Design fob a tape dispenser : en
  • FR877496A - Gas mixer : en fr
  • DK60391C - Process for the Preparation of Aralkylamines by Catalytic Hydrogenation of Halo-Hydrogen Acidic Esters of Aromatically Substituted Amino Alcohols. : da en
  • US2304430A - Bicycle attachment : en
  • GB549669A - Improvements in vehicle structures : en
  • DE729185C - Process and device for backflow formation and distillate cooling in reinforcement columns : de en
  • GB549870A - Improvements in lock stitch sewing machines : en
  • FR877459A - : fr
  • DE728980C - Process for the production of resinous condensation products : de en
  • FR877450A - Electric stove : en fr
  • AU116196B2 - Improvements relating tothe hermetic sealing of metal into vitreous materials : en
  • US2304536A - Safety match box : en
  • DE728999C - Device for lighting long, narrow areas : de en
  • FR877617A - Electrode metal for electric discharge vessels : en fr
  • FR877528A - End sleeve for electric cables : en fr
  • US2304399A - Banding machine : en
  • US2304427A - Recovery of silver from scrap films : en
  • US2304442A - Relay commutator : en
  • FR877510A - Regulator-metering device : en fr
  • GB549818A - Improvements in or relating to wheel mountings : en
  • FR877474A - Support device for film reels of cinematographic devices : en fr
  • DE729104C - Tubular device for separating fluids from gases or gas mixtures by centrifugal force : de en
  • FR877628A - Current generator for vehicle lighting, in particular cycles : en fr
  • DE729027C - Gas stove : de en
  • CA409125A - Linear dimension gauge : en fr
  • DE729274C - Conveyor device : de en
  • US2304520A - Winding machine : en
  • GB549825A - Improvements in or relating to contacts for electrical switchgear : en
  • FR877533A - Reciprocating power tool holder for remeshing stockings, stitching patterns, pushing back or performing similar work : en fr
  • US2304170A - Furnace roof : en
  • US2304507A - Art of cracking mineral oil : en
  • DE729172C - Sea mine : de en
  • CA409169A - Enclosed circuit breaker : en fr
  • CA409195A - Hydrostatic brake : en fr
  • CA409121A - Sawing apparatus : en fr
  • FR877555A - Large capacity accumulators : en fr
  • US2304357A - Typewriting machine : en
  • US2304446A - Method of and means for utilizing received electromagnetic energies : en
  • US2304231A - Calculating machine : en
  • FR877636A - High Power DC Machine : en fr
  • US2304437A - Cap-feeding apparatus : en
  • CA409246A - Machine tool ram back brace : en fr
  • US2304223A - Visor : en
  • US2304417A - Safety device for low pressure vessels : en
  • US2304126A - Structural joint : en
  • US2304586A - Hob for generating crown gears : en
  • GB549783A - Improvements in method and means for supporting articles of plastic material : en
  • GB549880A - Improvements in and relating to metal extrusion presses and methods of operating same : en
  • GB549893A - Improvements relating to the damping of vibrations in members : en
  • US2304228A - Spinning and twister frame : en
  • US2304407A - Internal combustion engine : en
  • US2304712A - Winding machine with auxiliary device for initiating the winding operation : en
  • DE729132C - Grinding machine : de en
  • GB549790A - Improvements in or relating to soap containers or soap supporting devices : en
  • US2304169A - Safety device for drawing machines : en
  • US2304294A - Fluid fuel burner : en
  • US2304542A - Control system : en
  • US2304768A - Electric lamp : en
  • US2304635A - Frequency modulation monitor : en
  • DE728908C - Process for removing unpleasant smells and flavors from beetroot : de en
  • DE729167C - Retractable aircraft landing gear : de en
  • US2304569A - Telegraph system : en
  • FR877470A - Method for distinguishing media from magnetograms : en fr
  • FR877486A - Combination lock : en fr
  • FR877553A - Fuel chipboard and manufacturing process : en fr
  • US2304172A - Method of and apparatus for withdrawing lowermost sheets from stacks : en
  • US2304343A - Clamping device : en
  • US2304251A - Garment : en
  • US2304531A - Powder box : en
  • US2304597A - Musical instrument string tensioning means : en
  • US2304667A - Electrical condenser : en
  • CA409269A - Liquid filter : en fr
  • US2304317A - Work holder : en
  • DE729111C - Device for converting a frequency-modulated oscillation into an amplitude-modulated oscillation : de en
  • GB549813A - An improved construction of rotary pump : en
  • GB549891A - Improvements in or relating to train describing signalling systems : en
  • DE729057C - Method for reducing the driving pressure of the coal : de en
  • FR877539A - Hollow glass handle for door locks : en fr
  • GB549670A - Improvements in or relating to rotary pumps : en
  • US2304671A - Lister harrow : en
  • USD134552S - Design fob a dress : en
  • FI19448A - Corkscrew : en fi
  • FR877529A - Auxiliary device intended for the mechanical machining of workpieces : en fr
  • FR877565A - Improvements to automatic skips : en fr
  • FR877589A - Current supply device for weak traffic signals : en fr
  • FR877573A - Pressure reducer for supplying explosion engines with compressed or liquefied gases : en fr
  • GB549809A - Improvements in dust-collecting filters for vacuum cleaners : en
  • DE728936C - Parquet floor : de en
  • DE728995C - Flap gate for locks with a filling flap sealing against the sole : de en
  • DE729025C - Putty resistant to hydrocarbons : de en
  • US2304583A - Wheel structure : en
  • US2304237A - Pump : en
  • GB549824A - Improvements in and relating to electric lamp manufacturing machinery : en
  • US2304321A - Electrode holder : en
  • US2304383A - Reversible moldboard plow : en
  • US2304493A - Jig for plate welding : en
  • FI19432A - Generator : en fi
  • FI19435A - Gas generator furnace grate unit : en fi
  • US2304196A - Glass melting tank structure : en
  • US2304594A - Illuminating apparatus : en
  • US2304694A - Scavenging of two-stroke sleeve valve internal combustion engines : en
  • DE729244C - Electric cathode glow tubes to keep voltages constant : de en
  • FR877557A - Relays sensitive to frequency and speed variations : en fr
  • DE729236C - Fastening of enamelled tanks on vehicles, in particular horizontal tanks on railway chassis : de en
  • US2304425A - Pneumatic riveter : en
  • CA409276A - Animal trap : en fr
  • CA409128A - Surface covering material curing process : en fr
  • US2304763A - Trolley wire support : en
  • US2304226A - Abrasive wheel : en
  • US2304304A - Defoamer : en
  • US2304176A - Spring sash balance : en
  • US2304165A - Railway signaling system : en
  • GB549816A - A test bar device for fixing to the head stock of a lathe or the like : en
  • DE728947C - Fine slot filter for gases and liquids : de en
  • US2304116A - Mechanism for transferring freight : en
  • GB549787A - Improvements in and relating to refrigerating apparatus : en
  • DE729068C - Electric circuit breaker with arc extinguishing by gases and vapors : de en
  • US2304274A - Treating sewage : en
  • DE729272C - Detachable lock for wooden boxes : de en
  • FR877443A - Process for preparing sheet iron to make it suitable for the manufacture of containers for the preservation of various products, such as food products, varnishes and the like : en fr
  • CA409110A - Ramie fibre processing : en fr
  • CA409196A - Metal fabric and article : en fr
  • USD134512S - Design for a cookie jak : en
  • USD134525S - Design for a body for a trailer vehicle or the like : en
  • US2304492A - Filter : en
  • DE728903C - Made of easily inflammable materials, such as B. Metaldehyde, red phosphorus, camphor and sodium chlorate, existing ignition stick for pyrophoric lighters : de en
  • US2304113A - Treated textile product : en
  • DE729213C - Means for combating the bee mite : de en
  • USD134517S - Compressor for a hydraulic brake unit or the like : en
  • US2304111A - Uniform : en
  • GB549836A - Improvements in or relating to perambulators and like carriages : en
  • CA409283A - Boiler feed regulator : en fr
  • CA409236A - Telephone system : en fr
  • US2304284A - Engine starter gearing : en
  • US2304364A - Closure device : en
  • USD134504S - Design for a paving breaker : en
  • US2304696A - Bicycle frame and head shroud therefor : en
  • US2304752A - Railway tie tool : en
  • DE729002C - Device for monitoring control organs : de en
  • DE729035C - Method for gluing paper : de en
  • FR877593A - Process for manufacturing son or other artificial cellulose objects : en fr
  • DK60402C - Connecting device between a wall and a pipe passed through it. : da en
  • US2304639A - Conversion of hydrocarbon oil : en
  • US2304596A - Measuring device : en
  • US2304733A - Gas scrubber : en
  • DE1526138U - : de en
  • DE728974C - Improvement of chromium-containing colored bodies : de en
  • CA409190A - Bearing lubricating device : en fr
  • CA409257A - Radio shielded ignition system : en fr
  • CA409253A - Rubber filament producing apparatus : en fr
  • CA409137A - Bearing mounting : en fr
  • USD134538S - Design for a game board : en
  • US2304332A - Scraping device : en
  • FI19441A - Adjustment of the bayonet for the tank lock : en fi
  • GB549834A - Improvements in thermionic amplifier circuit arrangements : en
  • CA409209A - Porous metal structure : en fr
  • FR877494A - Automatic expansion valve : en fr
  • FR877526A - Acetylene generator for all uses and in particular for motor vehicle engines : en fr
  • FR877614A - Mounting for external control of decimetre wave transmitters comprising two triode tubes : en fr
  • DE729050C - Process for the direct production of a rayon sliver : de en
  • US2304628A - Ventilating air distributing apparatus : en
  • FR877609A - Cleaning device for roller drawing benches of spinning machines : en fr
  • DE729105C - Manufacture of hydrazine : de en
  • US2304481A - Joint construction : en
  • DE729234C - Forced circulation steam generator : de en
  • USD134521S - Design for a back bar : en
  • DE728927C - Business book : de en
  • DE729197C - Clamp for electrical overhead lines, especially for lines made of different metals : de en
  • US2304660A - Apparatus for molding building blocks : en
  • FR877420A - Feeding device for the metering of powdery, crystalline or granular solid products, in particular explosives : en fr
  • FR877438A - Locking : en fr
  • US2304183A - Multistage dehydroaromatization : en
  • US2304195A - Thread control for axminster needle motion : en
  • US2304262A - Trimming board : en
  • DE728967C - Dimming device : de en
  • DE729011C - Method for holding the not yet separated sheets on sheet feeders : de en
  • US2304367A - Safety battery belt : en
  • FI19434A - Värmeutbytesanordning : en fi
  • DE729225C - Exchange pen : de en
  • US2304593A - Birdproofing : en
  • US2304704A - Screw : en
  • US2304080A - Preparation of alpha trioxymethylene : en
  • US2304469A - Apparatus for converting metals and the like : en
  • US2304664A - Lens molding press : en
  • US2304600A - Production of adhesives : en
  • US2304161A - Reversing and lead controlling mechanism for fuel injection engines : en
  • DE729193C - Procedure for level control of a transmitter : de en
  • US2304630A - Plastic binding machine : en
  • CA409198A - Glassware forming apparatus : en fr
  • US2304071A - Sandblast booth : en
  • US2304567A - Shaving implement : en
  • USD134516S - Design for a stirrup pump : en
  • FR877517A - Intermediate fitting for aluminum, copper and their alloys and other valves : en fr
  • DE729045C - Electric fast regulator with damping and springy feedback device : de en
  • DE729202C - Device for the step-by-step control of single and multi-step reciprocating compressors : de en
  • FR877505A - Anthraquinone derivatives containing nitrogen : en fr
  • CA409145A - Food preserving process and apparatus : en fr
  • US2304241A - Engine starter gearing : en
  • US2304373A - Package : en
  • DE729000C - Lamp signal circuit : de en
  • DE729163C - Process for the production of water-soluble pest repellants containing redone : de en
  • US2304615A - Tubular knockdown containers : en
  • GB549794A - Improvements in absorption refrigerating apparatus : en
  • FR877436A - Carbon sealing ring for glands for rotating machine shafts or for piston rods : en fr
  • US2304751A - Foundry mold and core and composition therefor : en
  • DE728893C - Process for the production of durable colloidal solutions of poorly soluble oxalates from rare earths : de en
  • DK60395C - Coupling for providing a phase shift of 180 °, in particular for transmission systems for generating guide lines. : da en
  • US2304618A - Filter : en
  • US2304766A - Universal coupling : en
  • US2304347A - Thermal control device : en
  • AU481442A - Packaging : en
  • DE729214C - Securing a lathe spindle that can be reversed to increased counterclockwise rotation speed by a pole-changing motor against excessive counterclockwise rotation speeds : de en
  • AU454042A - Improvement in carrier-signal detector : en
  • CA409231A - Fuel injection device : en fr
  • US2304155A - Joint washer : en
  • US2304316A - Refrigerating system : en
  • US2304224A - Radiator valve : en
  • US2304604A - Dynamoelectric device : en
  • CA409133A - Briquette carbonizing process : en fr
  • FR877633A - Automatic speed regulator brake for wagons or sedans : en fr
  • DE728957C - Hollow bodies made from bindable masses and process for its production : de en
  • DE729054C - Device for inclining a longitudinally displaceable spindle head on machine tools, in particular the clamping head on short thread milling machines : de en
  • US2304650A - Piston : en
  • DE729061C - Circuit arrangement for manually and electromagnetically controlled switch levers for track plan signal boxes : de en
  • US2304707A - Hot air stove : en
  • FR877637A - Telautographic device : en fr
  • FR877638A - Snap ring and latch : en fr
  • FR877624A - Method and balancing device for the production of overhead propellers with replaceable blades or with replaceable hubs : en fr
  • CA409241A - Light sensitive diazotype layer manufacture : en fr
  • GB549789A - Cross talk balancing : en
  • DE728943C - Magnetically switched Maltese cross : de en
  • FR877550A - : fr
  • GB549845A - Improvements in or relating to liquid-filled compasses : en
  • US2304680A - Gauge : en
  • US2304336A - Hydraulic coupling : en
  • US2304722A - Parasiticidal material : en
  • CA409103A - Hydraulic clutch : en fr
  • CA409123A - Multi-phase transmission line protection process : en fr
  • US2304210A - Insulated electric cable : en
  • US2304451A - Quenching bath and method of quenching metal : en
  • US2304452A - Blending edible fats : en
  • CA409280A - Ice formation preventing means for airplanes : en fr
  • US2304088A - Apparatus for manufacturing filters : en
  • US2304153A - Variable pitch propeller : en
  • FR877483A - Direct manufacturing process for a staple fiber roving : en fr
  • GB549871A - Manufacture of phenylcyclohexyl-fatty acids and esters thereof : en
  • USD134529S - Design fob a badge or similar article : en
  • US2304094A - Refrigeration apparatus : en
  • DE728870C - Mash or wort treatment to improve the beer quality : de en
  • US2304276A - Automobile control device : en
  • US2304409A - Dry steam generator : en
  • US2304486A - Crowd for boom structures : en
  • USD134500S - Design for a slide hooe : en
  • US2304166A - Method of producing machined carbon articles : en
  • USD134507S - Combined perfume bottle and holder therefor : en
  • US2304198A - Bearing and seal construction : en
  • US2304244A - Coupling : en
  • US2304091A - Signal-generating system : en
  • CA409100A - Multiplex communication system : en fr
  • US2304468A - Oil burner : en
  • US2304771A - Cutter : en
  • USD134510S - Design for a game board : en
  • US2304432A - Continuous strip pickling and cleaning device : en
  • USD134511S - Design fob a cookie jar : en
  • AU116213B2 - Improvements relating to oil burning heating stoves : en
  • US2304413A - Refrigerating apparatus : en
  • US2304246A - Chewing gum : en
  • GB549806A - Improvements in or relating to ornamental moldings : en
  • DE728955C - Filter breathing apparatus : de en
  • DE729221C - Procedure for extinguishing magnesium or other light metal brakes : de en
  • GB549785A - Improved means for testing and selecting electrical circuits, particularly in automatic telephone systems : en
  • US2304124A - Heating and cooling apparatus : en
  • US2304695A - Peanut vine stacking stake : en
  • USD134539S - Design for a candle : en
  • DE728958C - Air suction device for dusty goods : de en
  • DE728981C - Process for the production of polyurethanes or polyureas : de en
  • DE729121C - Method for the joint examination of transparent objects according to the Schlieren method and the interference method : de en
  • GB549810A - Improvements in or relating to electric metal-vapour discharge tubes : en
  • DE729277C - Automatic ignition device for electric direct current arc lamps with highly loaded wick charcoal (effect charcoal) and Beck effect that acts as a positive main electrode and is arranged at an obtuse angle to the cathode, and at least 50 amp operating current and more than 12 mm distance between the main electrodes, especially for tiltable headlights : de en
  • US2304366A - Car coupler supporting means : en
  • US2304758A - Cosmetic container : en
  • US2304370A - Spindle mounting for spinning and twister frames : en
  • US2304585A - Polo mallet head making : en
  • USRE22233E - Voltage regulator : en
  • US2304313A - Slope indicator : en
  • US2304668A - Variable reactance transformer : en
  • CA409160A - Synchronous machine control system : en fr
  • CA409206A - Liquid atomizing method : en fr
  • US2304570A - Cabinet heater : en
  • US2304730A - Adhesive : en
  • DE729073C - Boiler system for central heating with a directly heated hot water boiler and a water heater assigned to it : de en
  • US2304439A - Typewriting mechanism : en
  • US2304450A - Voting machine of the recording : en
  • US2304573A - Screening apparatus : en
  • CA409208A - Packing and display case : en fr
  • US2304106A - Mechanical time fuse : en
  • US2304505A - Mining machine cutter bar : en
  • US2304636A - Automatic transmission : en
  • FR877500A - Automatic flow oil lubricator : en fr
  • US2304713A - Noise reduction in electric transmission systems : en
  • GB549863A - Improvements in and relating to high voltage electric windings : en
  • US2304598A - Window construction : en
  • FR877466A - Internal combustion engine fitted with a centrifugal sweeping or supply fan : en fr
  • GB549866A - Improvements in or relating to disintegrators for sewage sludge and for like purposes : en
  • US2304463A - Process for treating and reducing chromium chloride : en
  • FR877584A - Precision machine tool with automatic adjustment of its slides : en fr
  • GB549881A - Improvements in pressure sensitive devices in which the displacements of a diaphragm are translated into an electrical effect : en
  • US2304185A - Broach : en
  • US2304560A - Brake control mechanism : en
  • USD134518S - Design for a wagon : en
  • USRE22231E - Photographic exposure meter : en
  • CA409156A - Resinous composition : en fr
  • FR877620A - Device for the rapid collection of insects and particularly Colorado beetles : en fr
  • DE728838C - Procedure for changing the frequency bandwidth of electrically transmitted messages : de en
  • DE729026C - Garment made from right-right knitted goods : de en
  • DE729153C - Device for mechanical-electrical measurement of the circumference of a body : de en
  • FR877570A - Method and apparatus for pumping liquids : en fr
  • DE728961C - Process for the production of lumpy coke from fluidized coal : de en
  • AU116188B2 - Improvements relating to submersible electric motors : en
  • DK60405C - Sprinkler closure. : da en
  • US2304466A - Stabilization of vinyl aromatic resins : en
  • GB549850A - Improvements in or relating to tire shaping apparatus : en
  • DE729055C - Method for baking loose bread made from soft dough : de en
  • US2304292A - Refrigerator cabinet construction : en
  • US2304487A - Control mechanism for combination flap and aileron for airplanes : en
  • CA409150A - Aircraft structure : en fr
  • CA409229A - Plough lift : en fr
  • DE729143C - Process for making exhaust steam invisible : de en
  • DE729215C - Countersink tool, especially for screw head countersinks, with adjustable stop sleeve : de en
  • US2304675A - Gnathodynamometer : en
  • US2304107A - Nut anchor : en
  • US2304625A - Gradometer : en
  • GB549776A - Improvements in or relating to facsimile telegraph receivers : en
  • GB549898A - Improvements in hose clips : en
  • GB549852A - Improvements relating to hydraulic brake pumps : en
  • USD134558S - Tashman handbag : en
  • CA409188A - Locomotive sanding control apparatus : en fr
  • GB549873A - Improvements in or relating to fluid seals and self-contained sealing units : en
  • FR877482A - Safety lock for cycles : en fr
  • CA409091A - Fluid pressure and flow regulator : en fr
  • CA409240A - Timing signal circuit : en fr
  • US2304410A - Pedal cover : en
  • USD134520S - Electrical meter or similar article : en
  • US2304581A - Apparatus for applying trim rings to wheels : en
  • USD134530S - Design for a statuette : en
  • USRE22232E - Refrigerator car : en
  • DE729252C - Sofa, preferably a couch, with loosely positioned, low backrest cushions : de en
  • US2304484A - Vending machine : en
  • CA409210A - Automobile window assembly : en fr
  • US2304334A - Bushing : en
  • US2304408A - Gun perforator : en
  • US2304566A - Fire control mechanism : en
  • USD134514S - Design for a cookie jar : en
  • CA409242A - Glass batch feeding apparatus : en fr
  • US2304590A - Remote control apparatus for selectively operated machines : en
  • FR877639A - Wall anchor : en fr
  • FR877498A - Acetylene Generator For Automotive Cars : en fr
  • US2304278A - Paper cup : en
  • US2304191A - Gravity meter : en
  • US2304356A - Mechanism control : en
  • US2304143A - Kerf-cutting machine : en
  • US2304200A - Safety control mechanism for fuel burners : en
  • CA409219A - Hydrogenating catalyst reactivation : en fr
  • US2304470A - Machine for resawing slabs : en
  • US2304120A - Misselection indicator : en
  • US2304436A - Cap feeding apparatus : en
  • CA409181A - Speed controlled brake : en fr
  • US2304651A - Spring structure : en
  • US2304150A - Solution concentration system : en
  • US2304258A - Method of treating metals and metal alloys during casting : en
  • US2304266A - Brake actuating system and apparatus : en
  • US2304363A - Crane scale : en
  • US2304608A - Electrical cutout for motor vehicles : en
  • US2304657A - Electron discharge device : en
  • FR877503A - Process for the production of purified latex and rubber from this latex : en fr
  • US2304236A - Footwear : en
  • US2304513A - Apparatus for detecting imperfections in insulating materials : en
  • USD134536S - Design fob a poster : en
  • CA409268A - Catalyst processing : en fr
  • US2304348A - Bow-tie clasp : en
  • US2304516A - Counter : en
  • FR877634A - Support easel for conveyor aprons with steel elements : en fr
  • DE729074C - Ring dowel made of bent wood : de en
  • DE729256C - Method for measuring the viscosity of adsorbed liquid layers : de en
  • DK60410C - Procedure for the Execution of Foundations of Pillars for Bridges and Similar Structures. : da en
  • FR877502A - Further development of mixers for gas vehicles : en fr
  • FR877519A - Nut wrench : en fr
  • US2304151A - Air conditioning system : en
  • US2304203A - Conducting catalytic conversion reactions : en
  • US2304438A - Dishwashing machine : en
  • US2304129A - Multiple bubble sextant or other altitude measuring device : en
  • DE729142C - Control for multi-cylinder, flywheelless piston steam engines : de en
  • CA409170A - Demand register : en fr
  • CA409135A - Sunburn preventing composition : en fr
  • GB549875A - Improvements in or relating to collecting mechanism for cigarettes, filter wads and other rod shaped articles : en
  • US2304396A - Wrapping machine folder : en
  • US2304433A - Reflector : en
  • US2304711A - Clamp terminal construction : en
  • GB549814A - Loop-taker mechanism for sewing machines : en
  • FR877622A - Process for impregnating wood and similar materials : en fr
  • US2304083A - Conversion of hydrocarbons : en
  • DE728939C - Injection nozzle : de en
  • CA409189A - Aromatic 1,3-diketone preparation : en fr
  • US2304444A - Liquid level control apparatus : en
  • CA409090A - Illuminated umbrella stick : en fr
  • FI19450A - Cardboard box : en fi
  • FR877561A - Slow wick ignition device : en fr
  • GB549811A - Improvements in ploughs or other ground-working implements : en
  • FR877531A - Agglomerated fuels in which metallic waste is incorporated : en fr
  • CA409081A - Electric fence charging device : en fr
  • US2304485A - Body vibrator : en
  • US2304519A - Production of anhydrous aluminum sulphate : en
  • FR877441A - Contact line needle : en fr
  • DE729217C - Spring roller mill : de en
  • US2304158A - Photo mount : en
  • US2304329A - Calculating machine : en
  • US2304735A - Paper making apparatus : en
  • US2304742A - Flashlight : en
  • DE728924C - Work jacket : de en
  • DE729094C - Reflex sight with a device for measuring distance and correcting the line of sight : de en
  • DE729036C - Roll film camera with rewind device : de en
  • US2304097A - Bobbin spinning machine : en
  • US2304079A - Rail bond and electric rail connector : en
  • US2304698A - Meter reading apparatus : en
  • FI19439A - Sågblad : en fi
  • DE728991C - Process for the manufacture of silica stones : de en
  • CA409211A - Printing method : en fr
  • FR877422A - Electric headlight for vehicles : en fr
  • DE729007C - Process for the pretreatment of electrically separated amounts of dust : de en
  • GB549801A - Food preparation and process for the production thereof : en
  • US2304637A - Resinous anion exchange material : en
  • US2304240A - Coin control device : en
  • FR877407A - Improvements to nozzles for gasifiers : en fr
  • FR877594A - Frame for sliding doors, especially car doors : en fr
  • FR877402A - Safety leads : en fr
  • US2304578A - Smokehouse : en
  • US2304405A - Unitary cylinder reconditioning tool : en
  • CA409142A - Vapour generator : en fr
  • US2304703A - Screw driver : en
  • FR877418A - Steam generator with vertical firebox and horizontal flue at its top : en fr
  • FR877534A - Cork concrete : en fr
  • US2304233A - Method of insulating panels : en
  • US2304297A - Art of utilizing molybdenum : en
  • DE729004C - High frequency coil with iron core : de en
  • DE729140C - Device for taking samples from the ground : de en
  • GB549826A - Improvements relating to electrically operated sound producing horns : en
  • US2304235A - Sleeping garment : en
  • US2304655A - Corner lock for bedsteads : en
  • GB549879A - Improvements in or relating to receptacles in or for use with collecting mechanism for cigarettes, filter wads and other rod-shaped articles : en
  • US2304285A - Rack : en
  • US2304678A - Rubber cement and method of making the same : en
  • CA409098A - Density measuring apparatus : en fr
  • US2304731A - Method of determining the density and shrinkage of the wool in a bale of wool : en
  • US2304125A - Emulsion and dispersion : en
  • US2304401A - Adapter unit for loose-leaf binders : en
  • US2304693A - Saw : en
  • DE729039C - Cushioning for bicycles, especially motorcycles : de en
  • FR877568A - Improvements to methods of connecting electrical conductors of dissimilar metals : en fr
  • FR877523A - Advanced security padlock : en fr
  • US2304525A - Hair clipper : en
  • US2304440A - Method of treating the rock, aplite, and of making ceramic ware : en
  • US2304300A - Shaker conveyer : en
  • US2304081A - Color television : en
  • US2304087A - Method for coating pipes and the like : en
  • CA409101A - Mixed briquetting process : en fr
  • DK60394C - Device by antenna systems with a pronounced directional effect to avoid radiation. : da en
  • USD134526S - Design for a spoon or similar article : en
  • CA409226A - Furfuryl alcohol resin : en fr
  • US2304526A - Decoding apparatus : en
  • FR877629A - Method and device for unwinding bands from rolls : en fr
  • FR877421A - Carburetor for gas engines : en fr
  • GB549779A - Absorption refrigerating apparatus : en
  • USD134551S - Design fob a dress : en
  • US2304613A - Delayed operation circuit : en
  • US2304640A - Window regulator : en
  • CA409094A - Eccentric satellite crank : en fr
  • DE729107C - Process for drying, maturing and storage-proofing of dune salts, in particular potash salts, by means of dry gas flows : de en
  • US2304269A - Air conditioning system : en
  • US2304281A - Pipe cleaner : en
  • US2304669A - Isolation of cannabidiol : en
  • CA409172A - Circuit interrupter : en fr
  • US2304118A - Electromagnetic friction apparatus : en
  • US2304102A - Protein composition : en
  • US2304122A - Well pumping apparatus : en
  • DE729112C - DF system : de en
  • DE729266C - Device for processing fibrous materials mainly intended for papermaking by simultaneous pounding and rubbing : de en
  • DK60407C - Closure plug with rubber ring. : da en
  • CA409178A - Low-starting-current motor : en fr
  • DE729176C - Tip for inner rattle : de en
  • FR877410A - Gasifier : en fr
  • DE729046C - Device for voltage regulation in alternating current circuits by means of inductors with controllable direct current bias : de en
  • DE729110C - Arrangement for modulating high-frequency oscillations, especially ultra-short waves : de en
  • CA409239A - Radio receiver remote control : en fr
  • CA409092A - Skin covered structure : en fr
  • CA409230A - Knitted metallic fabric : en fr
  • CA409180A - Electrical induction apparatus : en fr
  • CA409282A - Television light valve projection apparatus : en fr
  • CA409245A - Synchronizing apparatus : en fr
  • DE728996C - Device for driving the shuttle for hand looms : de en
  • DE729135C - Encoder for the remote position of non-rotating measuring mechanisms : de en
  • US2304186A - Velocity modulated tube : en
  • CA409260A - Friction damped engine mount : en fr
  • US2304283A - Ironing board pad : en
  • AU116200B2 - Improvements in valves used for engineering purposes : en
  • CA409213A - Multiple reporting form : en fr
  • GB549841A - Manufacture of sodium percarbonate : en
  • DE728832C - Process for producing colored images in projection : de en
  • DE729086C - Shaft seal for roller presses : de en
  • CA409107A - Combustion turbine : en fr
  • DE729222C - Device for covering a retractable landing gear passage opening provided in an outer wall of the airframe : de en
  • US2304723A - Process for the manufacture of articles of sintered metallic constituents : en
  • CA409136A - Gas returning method for wells : en fr
  • CA409143A - Fluid system : en fr
  • DE728968C - Electromagnetic relay with piston magnet : de en
  • US2304157A - Process for improving textiles : en
  • US2304424A - Traction increasing device for dual wheels : en
  • GB549839A - Improvements in goggles and the like : en
  • FR877462A - Drive wheel for endless chain vehicles : en fr
  • DE728993C - Chamber furnace for firing ceramic products : de en
  • US2304765A - Method of sorting citrus fruits and the like : en
  • FR877413A - Non-flammable electrical pipes : en fr
  • FR877559A - Process and products for starching and finishing of linen and fabrics : en fr
  • US2304553A - Solenoid : en
  • USD134506S - Slipper or similar article : en
  • GB549808A - A machine for printing upon shells and like projectiles : en
  • CA409095A - Face protecting shield : en fr
  • US2304093A - Removing iron from magnesium alloys : en
  • US2304386A - Printing mechanism : en
  • CA409250A - Wax suppressor : en fr
  • DE729211C - Measuring device for image reduction : de en
  • FR877444A - Camera for films on reels with perforated films : en fr
  • DE729208C - Process for the production of high-molecular masses containing nitrogen : de en
  • US2304755A - Telelectroscope : en
  • US2304458A - Lamp fixture and a method for producing same : en
  • US2304738A - Seismograph : en
  • USD134505S - Slipper or similar article : en
  • GB549792A - Improvements relating to boring tool holders for boring machines : en
  • DE728543C - Electric motor, especially underwater motor, whose stand space is sealed off from the runner space by a bushing : de en
  • US2304496A - Slide loop : en
  • GB549778A - Improvements in or relating to electron discharge devices : en
  • DE729281C - Cardboard disc bottle cap : de en
  • US2304412A - Electric high pressure discharge lamp : en
  • DE729158C - Process for preheating hardenable synthetic resin mixtures : de en
  • US2304064A - Process for producing aldehydes : en
  • US2304154A - Catalytic conversion of hydrocarbons : en
  • US2304206A - Process for producing filaments : en
  • US2304073A - Method of making electrolytic devices : en
  • DE728965C - Clamp for kink-free connection of overhead lines : de en
  • DE728953C - Rocket propellant with soul charge : de en
  • US2304136A - Power generator : en
  • US2304286A - Apparatus for repairing kegs : en
  • USD134502S - Bromm armored tank track coupler : en
  • FR877480A - Foot rests for cycles : en fr
  • DE728911C - Process for making photomechanically produced screen printing stencils resistant : de en
  • DE728982C - Process for making custard powder : de en
  • DE729044C - Hand-powered audio frequency generator for portable telecommunication devices with a contact device located in the circuit of a local battery : de en
  • FR877618A - Flat dryer for pieces of fabric or other shrinking material : en fr
  • FR877465A - Automatic switch with fusible lock : en fr
  • US2304229A - Fountain pen construction : en
  • US2304310A - Thread locking device : en
  • US2304748A - Gravity meter : en
  • US2304750A - Ceramic pigment : en
  • FR877547A - Device constituting both an automatic safety shutter and a metering device for the use of acetylene gas in internal combustion engines : en fr
  • GB549833A - Improvements in or relating to the production of moistureproof sheets or films : en
  • GB549773A - Improvements in or relating to damping apparatus for swivelling wheels of aircraft and other vehicles : en
  • USD134515S - Design fok a game boabd : en
  • US2304624A - 5-substituted tetrahydrotriazone : en
  • US2304559A - Electric scraper : en
  • US2304392A - Film driving mechanism : en
  • DE729080C - Agent for accelerating wound healing in plants : de en
  • DE729087C - Oxygen breathing apparatus with boy-controlled oxygen supply : de en
  • US2304607A - Method of making electric motors : en
  • US2304676A - Method of producing comparatively rigid containers by the repeated immersion of a core in film-producing substances : en
  • CA409221A - Article holder : en fr
  • DE729085C - Process for the impregnation of cigarette mouthpiece paper : de en
  • US2304130A - Process for the conversion of metals into finely divided form : en
  • US2304184A - Hand reel for antennas : en
  • DE729196C - Corrosion protection agent consisting of hydrocarbons with an ointment-like quality for the pole terminals of lead collectors : de en
  • FR877575A - Orientable pulley and its application to goods transport vehicles and traction machines and gear : en fr
  • DE728992C - Process for coloring sand and the like like : de en
  • FR877405A - Single wheel drawbar for agricultural machinery : en fr
  • FR877426A - Rotary switch with indicator lamp housed in the handle or shaft : en fr
  • FI19447A - Transportvagn : en fi
  • FR877433A - Process for extracting oils from animal or vegetable substances : en fr
  • DE729187C - Process for the preparation of methylenecarboxylic acid alkyl esters : de en
  • US2304514A - Motion repeating machine : en
  • FR877552A - Feeding device for chipboard presses : en fr
  • DE728985C - Electromagnetrically moved mirror arrangement on photographic cameras : de en
  • DE729130C - Device for displaying the direction of travel on bicycles and motorcycles : de en
  • DE729109C - Cold storage : de en
  • FR877549A - Improvements to the trangulation of bicycle frames, tandems or similar : en fr
  • DE728931C - Process for the production of water-soluble dyes of the phthalocyanine series : de en
  • FR877437A - Connection terminal for power lines : en fr
  • FR877648A - Ultramarine manufacturing process : en fr
  • DE729120C - Device for measuring the clear width of bores using compressed air or pressurized fluid : de en
  • US2304267A - Combined closure and applicator : en
  • US2304371A - Bearing : en
  • US2304634A - Motor : en
  • US2304724A - Projection of stereoscopic images : en
  • DE729183C - Trousers, especially underpants : de en
  • DE720185C - Wide threshing machine : de en
  • US2304146A - Feeding and serving mechanism : en
  • US2304479A - Combined switch and rheostat : en
  • US2304140A - Gas griddle : en
  • US2304144A - Catch structure : en
  • FR877451A - Reinforced cardboard box : en fr
  • US2304477A - Electric valve actuator : en
  • FR877488A - Further training in lean gas generators intended for supplying internal combustion engines : en fr
  • FR877582A - Process for preparing coatings and products obtained by this process : en fr
  • CA13392S - Parka : en
  • CA409134A - Cigarette end forming mechanism : en fr
  • DE729082C - Pistons for internal combustion engines : de en
  • GB549860A - Improvements in or relating to thread guide feed devices for cop winding machines : en
  • US2304275A - Collar : en
  • US2304512A - Toilet flushing mechanism : en
  • US2304602A - Method for the production of sebacic acid and methylhexylcarbinol : en
  • US2304178A - Sulphating process and apparatus therefor : en
  • DE729062C - Electric train signaling system for vehicle trains for command transmission, especially for electric trams : de en
  • DE729083C - Hydraulically operated fuel injector for internal combustion engines : de en
  • CA409141A - Boiler steam and water separator : en fr
  • CA409234A - Demountable tank body : en fr
  • US2304648A - Vehicle runway support : en
  • US2304290A - Alkylation process : en
  • US2304497A - Door elevating and supporting mechanism : en
  • US2304679A - Apparatus for saccharifying starchy materials : en
  • US2304188A - Control apparatus : en
  • CA409129A - Surface covering material curing process : en fr
  • GB549828A - Improved process for the treatment of textile fabrics : en
  • US2304105A - Printing telegraph operation : en
  • US2304441A - Scraper and earth mover : en
  • DE729166C - Process for producing picture and sound films : de en
  • FR877473A - Vaginal tampon : en fr
  • CA409083A - Wind driven impeller : en fr
  • FI19445A - A papermaking method in which starch is added to paper : en fi
  • GB549797A - Improvements relating to control means for taps, cocks, and the like : en
  • CA409214A - Electric cable and joint : en fr
  • DE729009C - Process for the production of a finned tube : de en
  • DE729151C - Boiler firing with oil or dust burners with a rotating atomizer beaker : de en
  • FR877607A - Process for the production, on magnesium and magnesium alloys, of protective layers capable of being dyed : en fr
  • GB549864A - Improvements in or relating to stretchers : en
  • DE729022C - Electric motor drive, especially for stage signal boxes : de en
  • DE729072C - Device for adjusting the height of a seat of swivel chairs : de en
  • US2304092A - Removing iron from magnesium : en
  • USD134549S - Max sokoloff : en
  • US2304282A - Timber rake : en
  • GB549769A - Improvements in radio receivers : en
  • DE729079C - Pack of goods to be dispensed from a self-seller : de en
  • US2304428A - Wrapping machine : en
  • US2304689A - Homogenizing valve : en
  • US2304740A - Method for recording seismic waves : en
  • US2304663A - Method for preheating lens making materials : en
  • CA409086A - Hair waving method : en fr
  • FR877432A - Weather protection device for passenger cars : en fr
  • US2304385A - Book protector : en
  • GB549862A - An improvement in or relating to tool-holders for metal-cutting machines : en