• US2280294A - Tie rack : en
  • US2280355A - Automatic wear take-up for friction clutches : en
  • US2280603A - Preparing suture materials : en
  • US2280631A - Facing sheet for sound absorbing material : en
  • CA404242A - Conveyer : en fr
  • US2280306A - Preheating chamber for decorating lehrs : en
  • US2280145A - Lower margin indicator for typewriters : en
  • DE720171C - Centrifugal compressor with gas-locked stuffing boxes : de en
  • AU114988B2 - Valuable anti-hemorragic compound and process of preparing same : en
  • AU133041A - Improved automatic voltage regulator for alternators : en
  • US2280520A - Drag scraper bucket : en
  • US2280572A - Scanning means and method : en
  • US2280390A - Pressure regulator : en
  • US2280613A - Recorder : en
  • DE720101C - Vibrating screen : de en
  • US2280419A - Compounded oil : en
  • US2280513A - Door structure for mixers : en
  • US2280720A - Method of ironing garments : en
  • US2280201A - Spring liner : en
  • US2280557A - Piston ring compressor : en
  • US2280614A - Filling machine : en
  • USD132120S - Design for a cigarette container : en
  • FR871398A - A method of manufacturing a three-stage gear wheel of different diameters and shapes : en fr
  • CA404276A - Resilient joint : en fr
  • US2280469A - Spindle feed : en
  • US2280721A - Process of developing photographic pictures : en
  • AU520342A - Process forthe manufacture ofa product with blistered structure, adapted for insulating purposes : en
  • CA404293A - Fluid pressure apparatus : en fr
  • CA404307A - Composite colour photography : en fr
  • US2280681A - Plow : en
  • CA404327A - Electric switch : en fr
  • GB544632A - Improvements in and relating to lathes : en
  • GB544702A - Manufacture of positive photographic prints : en
  • AU106841A - Improvements inthe sealing of cartons : en
  • US2280467A - Glove : en
  • US2280491A - Absolute permissive block system of railway signaling : en
  • US2280755A - Thermic telltale : en
  • FR871447A - Centrifugal regulator : en fr
  • US2280270A - Nut lock : en
  • US2280630A - Electronic circuit : en
  • US2280174A - Aluminum alloy : en
  • US2280348A - Hair clipper : en
  • US2280532A - Wide band amplifier : en
  • DE720056C - Circuit arrangement for achieving a constant high-frequency amplitude in multi-stage high-frequency transmitter amplifiers : de en
  • DE720049C - Torsion bar suspension for the handlebars of independently guided wheels of motor vehicles : de en
  • US2280531A - Oscillograph apparatus : en
  • AU101141A - Valuable anti-hemorragic compound and process of preparing same : en
  • USD132127S - Design for a service plaque : en
  • US2280250A - Lap forming blowing machine : en
  • US2280441A - Dart : en
  • FR871404A - Lantern with an incandescent lamp mounted in a screw frame : en fr
  • US2280426A - Ignition system : en
  • AU107941A - New or improved means for purifying and / or cleansing gases : en
  • US2280059A - Bread slicing machine : en
  • USD132097S - Design for a plural-note whistle : en
  • US2280345A - Pneumatic control : en
  • US2280588A - Fluid motor : en
  • DE720089C - Friction shock absorbers, especially airplanes struts : de en
  • FR871321A - Process for the production of metal coatings for protection against rust sprayed on iron and steel : en fr
  • GB544613A - Manufacture of synthetic resins : en
  • US2280083A - Folding pocket stereoscope : en
  • US2280219A - Attachment for tabulating machines : en
  • US2280369A - Resistance welding machine : en
  • US2280475A - Lubricating oil : en
  • CA404228A - Colour correction : en fr
  • US2280280A - Communication system : en
  • US2280395A - Truss : en
  • US2280664A - Applying reinforcing strip to slide fasteners : en
  • DE720158C - Process for finishing waterproof textile webs : de en
  • US2280420A - Radio telephone system : en
  • AU114991B2 - Improved automatic voltage regulator for alternators : en
  • DE719977C - Wall dowel with a loose ring for hanging, especially pipe and cable runs : de en
  • DE719897C - Circuit arrangement for counting connections of different values in telecommunications systems, in particular telephone systems : de en
  • FR871308A - Process for manufacturing, by casting or dipping, thin-walled bearings comprising a steel support shell : en fr
  • FR871384A - Process for improving the waterfastness of direct dyes on cellulose fibers, compounds intended for its use and products obtained according to this process : en fr
  • FR871374A - Apparatus and method for vapor phase cracking : en fr
  • US2280293A - Repeater control : en
  • US2280151A - Flame machining : en
  • US2280261A - Reciprocal motion device : en
  • FR871414A - Engine and transmission arrangement for different motor vehicles : en fr
  • GB544694A - Improvements in photographic objectives : en
  • DE719844C - Process for the production of air silk from carbonate-containing viscose : de en
  • FR871420A - Baler for straw, hay, etc., in particular mobile baler usable for example with a combine harvester : en fr
  • GB544734A - Improvements in or relating to glass solutions : en
  • CA404298A - Geochemical well logging method : en fr
  • FR871395A - Camera with shutter : en fr
  • FR871425A - Construction system for buildings, by means of perforated blocks in agglomerated plant fibers with cement binder : en fr
  • US2280081A - Catalytic converter : en
  • US2280084A - Latch : en
  • US2280725A - Self-balancing capacity altimeter : en
  • USD132138S - Playing card box and dispenser : en
  • GB544591A - Improvements relating to coil holders : en
  • USD132153S - Design fob a dress : en
  • US2280485A - Calculating device : en
  • US2280702A - Typewriting machine : en
  • US2280284A - Method and agent for treating iron and steel : en
  • US2280761A - Hogshead : en
  • DE720129C - Anchoring pin for molded bodies made of ceramic material, synthetic resin, wood, glass or the like. : de en
  • US2280691A - Stepladder : en
  • US2280297A - Method of testing eyes : en
  • DE720165C - Device with a wire guide for overmoulding electrical bare or insulated wires : de en
  • AU115011B2 - Improvements in milking machines : en
  • DE720104C - Fire lighter : de en
  • US2280759A - Adjustable fish pole cleat : en
  • DK59692C - Device for Knives for Meat Mincers, especially for Quick Choppers. : da en
  • GB544619A - Improvements relating to the operation of high pressure mercury vapour electric discharge lamps : en
  • GB544625A - Improvements in or relating to rotary printing presses : en
  • FR871369A - Improvements in the use of electricity in the culinary household art : en fr
  • US2280058A - Cyanoethylation of carbocycijc : en
  • US2280401A - Tire recapping machine : en
  • US2280507A - Phthalocyanine dyestuffs : en
  • US2280650A - Manufacture of catalysts : en
  • DE720124C - Device for regulating the frequency characteristic of a low frequency amplifier by means of a regulated screen grating tube : de en
  • US2280166A - Conveying apparatus : en
  • US2280126A - Method of and apparatus for guiding aircraft : en
  • US2280428A - Draft gear : en
  • US2280625A - Transformer : en
  • FR871310A - Ribbon agglutination apparatus : en fr
  • US2280285A - Method and agent for treating molten iron and steel : en
  • FR871335A - Typewriter Improvements : en fr
  • DE720029C - Foldable boot puller : de en
  • FR871445A - Devices for synchronous generators the exciter of which has an auxiliary drive by an electric motor supplied by the generator : en fr
  • US2280570A - Variable band width receiver : en
  • US2280056A - Vibrator mechanism for tobacco feeds and the like : en
  • US2280422A - Fishing tool : en
  • CA404226A - Colour correction circuit : en fr
  • DE720075C - Control for machines for pressing the guide rings onto projectiles : de en
  • FR871412A - Machine for placing the wrapping sheets on the bottles : en fr
  • FR871376A - Process for the preparation of resinous condensation products starting from urea and formaldehyde : en fr
  • GB544672A - Improvements in and relating to portable electric motor particularly for driving domestic apparatus, tools and the like : en
  • US2280624A - Massage cap : en
  • AU106441A - Apparatus for branching pipes under pressure and means for using same : en
  • FR871450A - Device for condensing fibrous material in a mixing chamber : en fr
  • DE719917C - Method and device for cooling internal combustion engine valves, in particular the spindles of the operating fluid inlet valves of deflagration internal combustion turbines : de en
  • US2280133A - Refrigeration apparatus : en
  • CA404246A - Dextrose production : en fr
  • US2280078A - Clamp for tubing flaring devices : en
  • US2280374A - Controllable pitch propeller : en
  • CA404326A - Low carbon steel processing : en fr
  • US2280338A - Modified lubricating oil : en
  • US2280652A - Winch : en
  • US2280693A - Apparatus for and method of modulating waves : en
  • DE720068C - Device for supplying dust-like fuel to an antechamber-like space of a four-stroke internal combustion engine : de en
  • DE720136C - Device for protecting babies from chemical warfare agents : de en
  • DK59689C - Magnetic Speed Controller for Power Machines. : da en
  • GB544678A - Process of making electrical sheets of silicon steel : en
  • FR871350A - Apparatus for hydrolysis or the like : en fr
  • DE719916C - Device for achieving a certain temperature air flow for internal combustion engines on test stands : de en
  • GB544676A - Magnetic field well logger : en
  • US2280382A - Racket handle : en
  • US2280342A - Adjusting mechanism : en
  • DK59671C - Pendulum hoist for Chandeliers or Lamps. : da en
  • CA404185A - Dehydrating press : en fr
  • CA404212A - Starch liquefaction : en fr
  • CA404316A - Telegraph line circuit : en fr
  • FR871385A - Improvements to removable sheet binders : en fr
  • GB544630A - Improvements in weighing balances : en
  • US2280080A - Concrete insert : en
  • US2280089A - Catalytic converter and heat exchange unit therefor : en
  • CA404213A - Brick simulating panel : en fr
  • US2280713A - Feathering propeller : en
  • CA404209A - Telephone switch : en fr
  • CA404269A - Communication system : en fr
  • GB544610A - Greenhouse roof sheathing : en
  • DE719944C - Heating element for stoves : de en
  • DE720052C - Master cylinder for fluid brakes, especially for motor vehicles : de en
  • DE719843C - Device for determining the earthed winding phase of windings connected to a multi-phase network : de en
  • DE719939C - Electric hotplate with continued cooking power : de en
  • DE720092C - Instinctual. Impeller and idler wheel for caterpillar vehicles : de en
  • CA404265A - Frequency-changing system : en fr
  • US2280121A - Structural joint : en
  • DE719943C - Annealing furnace for tempering workpieces : de en
  • US2280220A - Adjustable support for building structures : en
  • DE720072C - Device for taking cutters on the milling arbor of a milling machine : de en
  • DE720150C - Striking tool driven by periodically compressed air : de en
  • DE719948C - Double helix transit time coil : de en
  • US2280709A - Process for the manufacture of meerschaum pipes : en
  • USD132162S - Design fok a muff : en
  • DE720148C - Pneumatic tube system : de en
  • GB544601A - Improvements in and relating to electric register control systems : en
  • US2280413A - Surface ornamenting machine : en
  • CA404329A - Elastic material treating method : en fr
  • US2280326A - Method for manufacturing staple fiber with high stretching capacity : en
  • US2280608A - Multiple lensed motion picture camera : en
  • US2280512A - Refrigeration apparatus : en
  • US2280611A - Process for producing activated carbon : en
  • USD132135S - Design for a textile fabric : en
  • DE719927C - Process for the production of a compressed gas for non-marking torpedo propulsion : de en
  • USD132123S - Design foe a soap hanger : en
  • US2280175A - Aluminum alloy : en
  • US2280209A - Classifying rake : en
  • GB544634A - Improvements in or relating to diamond and the like cutting tools : en
  • US2280388A - Means for applying an adhesive coating to newly formed mineral wool fibers : en
  • USD132115S - Design for a textile fabric : en
  • DE720146C - Mechanically driven rotary luffing machine : de en
  • FR871413A - Gear shifting and control device for motor vehicles : en fr
  • US2280275A - Vehicle signal device : en
  • US2280439A - Earth moving vehicle : en
  • DE719914C - Process for the production of copolymers : de en
  • DE719969C - Device driven directly by a motor or via a flexible shaft for opening hard cladding, in particular plaster cladding : de en
  • US2280692A - Size regulator : en
  • US2280712A - Internal combustion engine : en
  • DE720022C - Circuit for measuring electrical insulation and capacitance values of electrical line structures : de en
  • FR871405A - X-ray tube protected : en fr
  • GB544605A - Improvements in steam heating systems : en
  • US2280328A - Printing device : en
  • US2280468A - Blind stitch sewing machine for binding carpets : en
  • US2280656A - Feeding device : en
  • DE720066C - Press casting machine for processing magnesium and its alloys : de en
  • CA404172A - Double glazed window sash : en fr
  • CA404322A - Steering gear for boats, etc. : en fr
  • US2280749A - Electric valve converting system : en
  • US2280487A - Compound expansion internal combustion engine : en
  • FR871444A - Enhancements to high frequency wave elimination devices on conductors : en fr
  • US2280535A - Apparatus and method of making knitted fabric : en
  • GB544617A - An aerodynamic lifting or sustaining device : en
  • DE720119C - Light beam scanner with an incandescent lamp as a light source, a scanning disc and projection optics : de en
  • GR9841B - DRINK. : el en
  • FR871410A - Product to prevent the smell of fish during frying and baking : en fr
  • DE719947C - High performance electrodynamic loudspeaker with cooled voice coil : de en
  • GB544731A - Improvements in reinforced concrete building construction : en
  • US2280736A - Air conditioning and lighting system for vehicles : en
  • CA404294A - Gyroscopic instrument brake : en fr
  • CA404208A - Spark quenching arrangement : en fr
  • DE719996C - Spray booth : de en
  • DE720033C - Device for covering windows or other openings in buildings : de en
  • GB544608A - Improvements in and relating to electrolytic cells : en
  • FR871316A - Process for the preparation of bottom fermentation beer : en fr
  • US2280052A - Shaving machine : en
  • US2280349A - Pipe support : en
  • US2280748A - Isomerization of normal paraffins : en
  • GB544603A - Countersinking machine : en
  • US2280418A - Shoe repairing machine : en
  • US2280708A - Pump : en
  • US2280658A - Vacuum pickup : en
  • US2280427A - Phosphatidic composition : en
  • US2280461A - Elimination of atmospheric radio disturbances : en
  • DE719994C - Self-loading pistol : de en
  • US2280362A - Hydraulic oil fuel pressure device : en
  • US2280497A - Cyclic sulphonic acid amide compounds : en
  • FR871411A - Household broom : en fr
  • DE719957C - Arrangement for the electrical remote control of an adjustable object or several such, in particular of frequency-determining parts in remote-controlled transmitters : de en
  • DK59677C - Dryer battery with cooling by natural draft. : da en
  • US2280195A - Guarded vent fitting : en
  • US2280258A - Manufacture of liquid hydrocarbons : en
  • DE720076C - Device for rolling wedge-shaped ship nails and deck nails with burr edges : de en
  • GB544661A - Improvements in and relating to dolls and like toy figures : en
  • CA404239A - Electrical precipitator device : en fr
  • US2280313A - Wringer : en
  • DE720047C - Packaging for gas masks : de en
  • DK59676C - Backflow switch. : da en
  • DE719915C - Device for determining lever arms on torque balances : de en
  • DE719937C - Flap weir : de en
  • DE719986C - With an impact generating device, e.g. a jackhammer, interacting tool for crimping profile rails by driving : de en
  • US2280098A - Synthetic material : en
  • USD132098S - Design for a utility table : en
  • GB544650A - Improvements in or relating to mixing apparatus : en
  • GB544622A - Improvements in or relating to air or gas compressors : en
  • US2280583A - Aircraft cockpit enclosure : en
  • GB544727A - Composite electricity conductor unit : en
  • US2280244A - Doll eye : en
  • US2280454A - Electric discharge vessel : en
  • US2280185A - Retractable undercarriage for aircraft and locking means therefor : en
  • US2280203A - Mechanism for synchronizing multiple prime movers : en
  • DK59678C - Procedure for killing microorganisms, such as bacteria, fungi and spores, or limiting their activity. : da en
  • DE719750C - Process for the production of Kuepen dyes : de en
  • DE719961C - Device for regulating the amount and the mixing ratio of an aspirated gas-air mixture : de en
  • GB544636A - Production of colour resists under aniline-black : en
  • FR871421A - Device for the automatic exchange of discs in talking machines : en fr
  • DE720001C - High-frequency induction furnace in which the furnace coil is pulled in from one : de en
  • CA404218A - Nitrile purification : en fr
  • FR871304A - Hydraulic control device, especially for cinematographic devices : en fr
  • FR871342A - Wagon frame : en fr
  • DE720069C - Magnetic electric ignition machine for multi-cylinder internal combustion engines with an uneven number of cylinders : de en
  • DE719946C - Loading device for industrial furnaces : de en
  • US2280414A - Surface ornamenting machine and method : en
  • DE720062C - Arrangement for testing the breaking capacity of single-pole high-voltage switches with only one interruption point : de en
  • AU114987B2 - Improvements in or relating to hydraulic storage and dispensing system : en
  • USD132161S - Design foe a muff : en
  • CA404328A - Butanol-(1)-one-(3) production : en fr
  • AU115007B2 - Frequency deviation alarm circuit : en
  • CA404274A - Textile fibrous structure : en fr
  • US2280686A - Method of making engine poppet valves : en
  • DE720045C - Tool for the simultaneous removal of the clear lenses and snap rings from the eyeglass frame of gas protection masks : de en
  • GB544626A - Improved electric fuse holders : en
  • US2280165A - Reversible handle : en
  • GB544695A - Improvements in or relating to gauging means for checking or testing the geometric form or shape of an article : en
  • FR871391A - Variable selectivity coupling system : en fr
  • GB544667A - Improvements in and relating to salt bath furnaces : en
  • GB544718A - Improvements relating to the flow of fluids in ducts and to fans for producing such flow : en
  • DE719991C - Preservation of green fodder : de en
  • DE720093C - Drive wheel for caterpillar vehicles : de en
  • DE720110C - Process for the production of phosphatide preparations which are soluble or easily dispersible in water : de en
  • US2280154A - Adjuster for friction elements : en
  • US2280598A - Flash lamp : en
  • US2280642A - Radiator and radiator shutter assembly : en
  • US2280716A - Fuel for internal combustion engines : en
  • CA404210A - Electrical signalling system : en fr
  • CA404317A - Insulated conductor : en fr
  • CA404178A - Offset spray gun : en fr
  • US2280231A - Portable back rest : en
  • US2280723A - Purification of starches : en
  • CA404319A - Electromagnetic apparatus : en fr
  • US2280062A - Motorized mechanism : en
  • US2280282A - Electrical coupling circuits : en
  • DE720105C - Combustible fire lighter : de en
  • DE720038C - Headstock rack for the transmission of movement from the inside of a body lying in the water to adjusting devices or the like arranged outside the body. : de en
  • US2280438A - Circuit controlling device : en
  • CA404304A - Photographic printing method : en fr
  • CA404289A - Arc starting device : en fr
  • CA404305A - Composite colour photography : en fr
  • DE719574C - Arrangement for AC-fed tube amplifiers : de en
  • CA404181A - Cleaning and polishing apparatus : en fr
  • USD132158S - Design for a suit : en
  • US2280612A - Food service instrument : en
  • USRE22079E - Bushing : en
  • DE719956C - Changeable uniqueness device for plug couplings : de en
  • CA404174A - Heating device : en fr
  • CA404264A - Nickel base alloy : en fr
  • DE720009C - Length measuring device with gauge and measuring card printer for webs of fabric or the like. : de en
  • CA404233A - Surge protection for electrical apparatus : en fr
  • CA404177A - Sheet metal punching or stamping machine : en fr
  • CA404253A - Duplicating machine paper feeding mechanism : en fr
  • AU114997B2 - Improvement in detector system for television receivers : en
  • US2280208A - Press roll : en
  • US2280555A - Skid shoe : en
  • US2280746A - Wheel : en
  • CA404170A - Extension cord retrieving mechanism : en fr
  • AU115006B2 - Telephone ringing systems : en
  • DE719960C - Process for the production of grid-like electrodes for electrical discharge vessels : de en
  • US2280360A - Garment : en
  • US2280278A - Tufting machine : en
  • USD132107S - Design fob a btoial casket : en
  • US2280415A - Apparatus for the coating of wires, cables, textile threads, and strips : en
  • US2280699A - Method of laminating and adhesive : en
  • US2280550A - Thermal switch : en
  • USD132136S - Identification necklace or the like : en
  • DE719938C - Device for bucket chain excavators to maintain consistent performance : de en
  • CA404188A - Motor fuel processing : en fr
  • US2280182A - Variable speed drive : en
  • US2280253A - Dyestuffs of the methine series : en
  • US2280449A - Electron multiplier : en
  • CA404203A - Aluminium alloy : en fr
  • US2280192A - Line maintenance tool : en
  • US2280626A - High-low pressure pumping system : en
  • CA404227A - Photographic support coating apparatus : en fr
  • US2280537A - Metal feed trough : en
  • CA404273A - Carton : en fr
  • DE719980C - Process and device for monitoring work that is subject to change over time : de en
  • US2280551A - Welding apparatus : en
  • DK59691C - Protective screen for Bicycles. : da en
  • DE719966C - Softenable dental fastener : de en
  • GB544662A - Gas protecting helmet and gas-mask carrier : en
  • US2280565A - Cartridge fuse : en
  • AU106741A - Improved union for use inthe filling of drums or other containers for liquids : en
  • GB544586A - Improvements in or relating to the manufacture and drying of pellicular bodies : en
  • DE719890C - Process for the production of furfural : de en
  • DE720079C - Process for the substitutional chlorination of hydrocarbons : de en
  • DE720125C - Cascade amplifier with changeable negative feedback : de en
  • DE719936C - Motor cooling of an electric centrifugal machine : de en
  • DE720026C - Interchangeable spacer for grate bars : de en
  • GB544629A - Improvements in and relating to stops for lathes : en
  • FR871325A - Improvements made to devices comprising a gas electric discharge tube : en fr
  • US2280142A - Glazing construction : en
  • US2280665A - Tube and bulb assembling machine : en
  • US2280745A - Slotted piston ring : en
  • GB544648A - Improvements in turning-gear apparatus for elastic fluid turbines : en
  • FR871360A - Transportable kiln for carbonization of wood in continuous operation : en fr
  • US2280514A - Single line guiding beacon : en
  • USD132157S - Design for a sot : en
  • DE719906C - Process for the production of carbocyclically fused ring systems by intramolecular dehydrogenation : de en
  • DE719973C - Detachable connection between a vacuum cleaner hose made of soft material and a connection sleeve for the hose made of solid material : de en
  • DK59674C - Device at Telegraph transmission system with single-current operation. : da en
  • US2280571A - Furnace : en
  • DE719868C - Process for the enrichment of the digestion sulfuric acid used for the production of superphosphate with phosphoric acid : de en
  • US2280268A - Apparatus for making hollow glass articles : en
  • US2280448A - Treating and testing apparatus : en
  • US2280719A - Ironer : en
  • US2280183A - Joint for nonmetallic pipes and gaskets therefor : en
  • USD132139S - Design for a picture frame : en
  • FR871357A - Quick draining device for filter basins after cleaning : en fr
  • DE720160C - Process for the preparation of 6-aminodihydrocinchonine and -dihydrocinchonidine : de en
  • US2280574A - Boiler feed water supply system : en
  • US2280411A - Pressure indicator : en
  • US2280590A - Process for the production of titanium solutions : en
  • DE719775C - Safety blow-off device with light fusible seal, especially for mobile containers for carbon disulfide : de en
  • US2280102A - Heat treatment : en
  • US2280597A - Mold gate : en
  • US2280159A - Cutter : en
  • US2280434A - Ice cream freezer : en
  • US2280524A - Electrical wave analysis : en
  • DE720139C - Fitting for sliding windows arranged one above the other : de en
  • FR871430A - Elastic strut for aircraft landing gear : en fr
  • FR871345A - Process for the preparation of azo derivatives : en fr
  • FR871418A - Grain and seed husking machine : en fr
  • FR871343A - Assembly welding or sealing process on austenitic manganese steels : en fr
  • US2280368A - Aircraft cockpit enclosure : en
  • FR871428A - Starting process for internal combustion engines : en fr
  • GB544595A - A new or improved substitute for glass and method of producing same : en
  • GB544714A - Improvements in or relating to the manufacture of stiffened laminated textile fabrics : en
  • US2280138A - Package : en
  • US2280190A - Self-centering servomotor : en
  • USD132145S - Artificial miniature christmas tree : en
  • GB544663A - Improved method and means of fixing wall boards and the like to steel-and wood structures : en
  • GB544713A - Improvements in the coating of surfaces with plastic compositions : en
  • US2280148A - Doughnut machine : en
  • US2280281A - Circuit breaker : en
  • US2280334A - Portable mine junction box : en
  • US2280478A - Loom with stationary weft supplies : en
  • DE719985C - Coupling for ropes with a thickening at the end : de en
  • GB544710A - A protective shield for beds and the like : en
  • GB544684A - Improvements in or relating to reel mechanism particularly for aircraft antennas : en
  • USD132134S - Design for a badge or the like : en
  • CA404300A - Manifold carbon separator : en fr
  • DE720128C - Device for accelerating and facilitating childbirth : de en
  • DK59675C - Sound emitter consisting of a loudspeaker in a box with rigid walls. : da en
  • US2280095A - Imprinting apparatus : en
  • US2280316A - Skid chain applying tool : en
  • US2280417A - Air cleaner : en
  • CA404283A - Asphalt coated material : en fr
  • GB544680A - Improvements in or relating to washing machines : en
  • US2280560A - Protective treatment for wood : en
  • CA404302A - Nitrocellulose product : en fr
  • US2280523A - Portable extension lamp : en
  • US2280057A - Support for surveying instrument telescopes : en
  • US2280262A - Pressure switch : en
  • US2280470A - Treatment of metals : en
  • US2280668A - Fly protector : en
  • USD132108S - Design fob a btjrial casket : en
  • DE720070C - Device for coating elongated objects, in particular sheet metal or strip iron, with zinc layers in the dipping process : de en
  • US2280161A - Register reset : en
  • US2280308A - Electronic repeater : en
  • US2280706A - Process for purifying metals : en
  • DE719940C - Process for making non-sliding pneumatic tires : de en
  • DE719935C - Process for detoxifying and refining tobacco smoke : de en
  • DE719945C - Overrun conveyor for rolling rods for optional loading of several adjacent annealing furnaces : de en
  • DE720018C - Arrangement for automatic constant dynamic control in amplifier systems, in particular sound transmission systems : de en
  • DE719949C - Tensioning device for the drive cord of the pointer for the tuning scale of radio sets : de en
  • DE719788C - Process for the preparation of quaternary aminoketones : de en
  • DE719934C - Light signal with electromechanical actuation for model railways : de en
  • DE719958C - Electromagnet : de en
  • FR871431A - Improvements to remote controls : en fr
  • US2280499A - Valve : en
  • USD132125S - Design for a smoking stand : en
  • US2280710A - Isomerization process : en
  • USD132119S - Design for a stocking or similar article : en
  • DE719837C - Arrangement for investigations (measurements, in particular coupling, damping and operating capacity measurements) on telecommunication lines that are in operation : de en
  • GB544585A - Improvements in or relating to the drying of tubular film bodies : en
  • CA404258A - Vertical support : en fr
  • US2280053A - Mechanism for cutting potato chips or the like : en
  • CA404277A - Resilient joint : en fr
  • US2280506A - Surgical dressing : en
  • AU110041A - Improvement in detector system for television receivers : en
  • CA404247A - Hitch device : en fr
  • US2280341A - Fluid expansible device : en
  • DE720132C - Process for improving objects made of aluminum or aluminum alloys : de en
  • GB544685A - Improvements in fluid pressure actuated electric switches : en
  • US2280582A - Method of manufacturing noise makers : en
  • DE720081C - Shut-off device : de en
  • US2280529A - Vat : en
  • US2280509A - Means for assembling tubular elements : en
  • US2280724A - Closure and container : en
  • CA404320A - Magnetic core manufacture : en fr
  • US2280246A - Fuel control mechanical breaker system and indicator : en
  • US2280704A - Air circulating system for driers : en
  • CA404217A - Pile fabric : en fr
  • CA404191A - Toxoid : en fr
  • DE719757C - Dishwasher : de en
  • US2280215A - Electric switch : en
  • CA404249A - Explosive compound : en fr
  • AU111041A - Improvements relating to radio receivers provided with two output circuits fromthe same output valve : en
  • US2280235A - Antenna : en
  • USD132121S - Design for a cigarette lighter : en
  • DE720147C - Charging device : de en
  • DE719605C - Zone determiners in telephone systems, especially for charge control in coin telephones with network group traffic : de en
  • GB544705A - Improvements in or relating to propellent powder : en
  • GB544722A - Improvements in or relating to registering and distributor switch mechanism particularly for use in liquid dispensing apparatus : en
  • CA404313A - Phototube : en fr
  • GB544674A - Improvements in and relating to centrifugal pumps, fans and the like : en
  • US2280389A - Window construction : en
  • DK59686C - Propulsion systems for Aircraft, in particular for Aircraft capable of flying at high altitudes. : da en
  • FR871341A - Advanced training in bed heating and ventilation systems : en fr
  • GB544688A - Improved construction for elastic fluid turbine diaphragms : en
  • DE720126C - Low frequency amplifier with positive feedback : de en
  • US2280099A - Shoe heel and method of making same : en
  • DE719729C - Locking device for vertically movable windows acting by clamping : de en
  • US2280329A - Excavator : en
  • US2280769A - Casing cutter : en
  • US2280594A - Adjustable wrench for nuts : en
  • US2280536A - Knitted fabric : en
  • US2280622A - Shoe : en
  • GB544607A - Improvements in and relating to oil blast electric circuit breakers : en
  • GB544612A - Improvement in processes of manufacturing agglomerates from a coal base utilised as the only binder : en
  • US2280554A - Refrigerator cabinet : en
  • CA404187A - Crate : en fr
  • AU114994B2 - Improvements in or relating to compositions for use in agriculture or horticulture : en
  • CA404229A - Electron discharge device : en fr
  • CA404257A - Electrical discharge device : en fr
  • US2280680A - Synchronous simplex telegraph system : en
  • US2280248A - Regulating pump : en
  • US2280734A - Cycle hitch : en
  • DE720095C - Gate lock with top and bottom spring-loaded snap bolts : de en
  • US2280093A - Distillation method and apparatus : en
  • US2280431A - Toothbrush holder : en
  • USD132111S - Design fob a burial casket : en
  • US2280647A - Structural curb or wall : en
  • USD132116S - Design for a key ring : en
  • DE719678C - Method and device for the automatic determination of the fermentation maturity of sourdough products, in particular bread : de en
  • DE720063C - Electrical, low-inductance wound capacitor : de en
  • GB544624A - Improvements in presses especially for shaping sheet metal : en
  • US2280076A - Pipe anchor : en
  • US2280653A - Adhesiveness of asphalts : en
  • USD132160S - Design fob a suit : en
  • DK59690C - Measures for such filter fans used in shelters. : da en
  • US2280659A - Antifriction bearing : en
  • DE719975C - Kitchen stove, the walls of which are made of reinforced concrete slabs, artificial stones or the like : de en
  • DE719998C - Suspension for a bucket wheel arm for excavators or the like that can be pivoted in a vertical plane. : de en
  • GB544590A - Improved cutter : en
  • GB544697A - Improvements in or relating to aircraft : en
  • GB544660A - Improvements in sheet metal piston ring : en
  • US2280221A - Serving apparatus : en
  • US2280238A - Combined mill and separator : en
  • GB544593A - Improvements in sheet feeding mechanisms : en
  • GB544693A - Improved means for use in supporting aeroplane wings during their assembly : en
  • DE720014C - Process for the concentration of acetic acid : de en
  • US2280146A - Car construction : en
  • US2280315A - Stage effect and display device : en
  • USD132149S - Design for a fruit juice extractor : en
  • DE719889C - Process for the preparation of pyridinedicarboxylic acids : de en
  • CA404260A - Hydraulic valve control mechanism : en fr
  • DE719997C - Feeding device for ovens for burning cement and similar substances : de en
  • DE720040C - Spur gears planetary gear : de en
  • US2280100A - Fluid pressure apparatus : en
  • US2280113A - Developing apparatus : en
  • GB544647A - Improvements in or relating to dyestuffs and dyestuff intermediates : en
  • GB544721A - Improvements in or relating to air compressors : en
  • DE720080C - Process for the production of titanium acid esters : de en
  • GB544599A - Improvements in and relating to devices for controlling the flow of liquids : en
  • DE720004C - Device for measuring amounts of pressurized fluid and for conveying the measured partial amounts to the point of consumption : de en
  • GB544581A - Improved plasticized compositions : en
  • US2280596A - Machine tool : en
  • FR871383A - Electric induction heater : en fr
  • US2280767A - Universal grip holder for rubbing tools : en
  • DK59687C - Pipe fitting. : da en
  • US2280090A - Fan : en
  • US2280610A - Vibratory electrical tool : en
  • US2280685A - Phonograph : en
  • AU111141A - Telephone ringing systems : en
  • US2280279A - Well pump : en
  • US2280398A - Swab : en
  • CA404230A - Watthour meter : en fr
  • CA404189A - Rake tooth : en fr
  • US2280234A - Spreader : en
  • US2280563A - Automatic selectivity control circuit : en
  • AU101841A - Improvements relating tothe immunizing of seed from pest attack : en
  • CA404244A - Electrical socket : en fr
  • US2280104A - Lift truck : en
  • DE719895C - Circuit arrangement for signaling via four-wire connection lines in telephone systems with dialer operation : de en
  • CA404284A - Chair : en fr
  • US2280177A - Aluminum alloy : en
  • US2280451A - Fertilizer and process for making the same : en
  • DE720057C - Arrangement for coupling the antenna to the input circuit of a receiver with several wave ranges : de en
  • US2280245A - Manufacture of doll eye assembly : en
  • US2280170A - Aluminum alloy : en
  • AU516342A - Improvements relating to tap or die holders for use in screw threading operations : en
  • CA404288A - Oscillation generator and frequency multiplier : en fr
  • US2280222A - Combination fuel distributing, speed governing, and starting device for diesel engines : en
  • US2280405A - Method of packaging soda straws : en
  • US2280654A - Control of adjustable screw propellers : en
  • US2280747A - Socket : en
  • US2280191A - Cathode-ray signal-reproducing unit : en
  • US2280371A - Adjustable guide for refrigerator shelves : en
  • USD132146S - Design for an airplane : en
  • US2280403A - Clamp : en
  • GB544733A - Improvements in the manufacture of photo-sensitive electrodes : en
  • US2280259A - Production of articles with viscous coatings : en
  • US2280458A - Heating device for tobacco curing barns : en
  • US2280477A - Rotproofing of textiles, paper, and other fibrous materials : en
  • US2280131A - Broiler : en
  • USD132152S - Design fok a coat : en
  • US2280682A - Down marker for football : en
  • US2280118A - Process of sulphonation : en
  • AU106241A - Improvements in or relating to buildings or structures : en
  • US2280587A - Press : en
  • USD132131S - Design for a suction cup dart : en
  • US2280533A - Filler neck for locomotive lubrication systems : en
  • US2280071A - Laminated flooring : en
  • DE719932C - Track safety system for electric model railroad systems : de en
  • GB544704A - Improvements in portable electric lamps having two bulbs operated by dry battery or accumulator : en
  • FR871331A - Spool driver for spindle winder : en fr
  • GB544683A - A method of and apparatus for delivering tickets, flat strips and similar laminae singly from a stack : en
  • DE720123C - Arrangement for deflecting cathode rays : de en
  • US2280304A - Clip structure : en
  • DE720154C - Ventilation arrangement for electrical machines, especially turbo-generators : de en
  • US2280677A - Forced feed cutter and spreader for combines : en
  • GB544579A - Improvements in automobile bonnets : en
  • DE719974C - Additional heating element for ovens and stoves : de en
  • DE720032C - Ground anchor with several anchor balls : de en
  • US2280176A - Aluminum alloy : en
  • FR871438A - Collector for electrical machines : en fr
  • GB544656A - Improvements in or relating to cutting dies or methods of making the same : en
  • US2280147A - Preparation of egg products : en
  • FR871348A - Mixture to improve combustion : en fr
  • GB544621A - Improvements in forming finished metal units of various selective designs : en
  • US2280094A - Table top construction : en
  • FR871373A - Device for sampling soil gases and method for this sampling : en fr
  • US2280410A - Nursing bag : en
  • US2280674A - Chemical reaction control : en
  • DE719930C - Tail light of limited size combined with reflector : de en
  • US2280060A - Cake-inhibiting catalyst : en
  • AU99841A - Improvements in or relating to hydraulic storage and dispensing system : en
  • GB544584A - Sound on film : en
  • GB544631A - Improvements in closures for canisters, boxes and the like : en
  • GB544653A - Improvements in door operating system : en
  • DE720000C - Arrangement for supplying medium or high frequency induction ovens : de en
  • FR871356A - Tab clips for removable binders, rods intended to receive these clips and binders fitted with these accessories : en fr
  • GB544580A - Improvements in or relating to regulator devices for adjustable blade propellers : en
  • DE719965C - Process for the production of synthetic fibers from nitrocellulose and egg white : de en
  • GR9840B - SYNTHETIC SOAP. : el en
  • FR871429A - Process for preparing formaldehyde solutions : en fr
  • GB544709A - Improvements in the manufacture of smokeless propellent powder : en
  • GB544712A - Improvements in or relating to apparatus for playing games : en
  • DE720046C - Gas protective mask or gas protective hood for small children : de en
  • GB544703A - Process for the manufacture of cellular rubber having fluid-tight cells : en
  • US2280141A - Dredge bucket : en
  • US2280181A - Synchronizing-signal separating apparatus : en
  • US2280433A - Art of coating sheet material : en
  • US2280216A - Method of impregnating fibrous materials : en
  • US2280561A - Camera attachment for surgical instruments : en
  • DE718760C - Coupled electrical and waste heat space heating, the heat source of which is a thermal engine driving a dynamo machine : de en
  • DE720044C - Gas mask : de en
  • US2280672A - Automatic gain control : en
  • US2280354A - Binoculars : en
  • US2280409A - Manifold assembly : en
  • US2280676A - Plastic trim calendar holder : en
  • FR871313A - : fr
  • FR871440A - Process for the extraction, by dissolution, of manganese from manganese ores : en fr
  • US2280466A - Dissolving apparatus : en
  • US2280128A - Flow control valve : en
  • US2280568A - Wheel : en
  • GB544668A - Improvements in piezo-electric crystal arrangements : en
  • US2280695A - Television circuits : en
  • FR871417A - Improvements to side rings for vehicle rims : en fr
  • DE719822C - Production of mechanically high quality films from solutions of acetyl cellulose : de en
  • US2280495A - Suction cleaner air flow construction : en
  • FR871366A - Gas mixer, for gasifiers, advanced : en fr
  • DE720024C - Process for the production of highly viscous, resin-like substances, in particular raw materials for lacquer made from pine and softwood tar : de en
  • FR871408A - Device for defrosting hood elements : en fr
  • DE719920C - Gate valves, especially for dusty, hot gases and vapors : de en
  • US2280592A - Soil testing device : en
  • US2280684A - Means for producing light effects : en
  • USD132130S - Design for a game board : en
  • FR871401A - Process for the production of metallic bonds or charges on oscillating systems used in electrical measuring or indicating instruments : en fr
  • US2280173A - Aluminum alloy : en
  • US2280363A - Shearing and shaving head for hair clippers : en
  • US2280197A - Fish lure : en
  • DK59683C - Tightening mechanism for the Blade in Haandsave. : da en
  • FR871322A - Photographic shutter : en fr
  • CA404331A - Fabric knitting tool : en fr
  • FR871315A - Apparatus for tempering glass objects : en fr
  • US2280125A - Inking roller : en
  • US2280272A - Fluid pump : en
  • US2280606A - Electronic reactance circuits : en
  • US2280300A - Light sensitive photographic coating and method of manufacturing the same : en
  • US2280760A - Backlash eliminator for machine tools : en
  • US2280352A - Method of swaging : en
  • US2280730A - Bottle stamper : en
  • US2280687A - Portable house : en
  • GB544589A - Improvements in methods and apparatus for winding skeins of yarn : en
  • DE719968C - Suction cup holder attached to a flat disc : de en
  • US2280068A - Apparatus for applying extended surface elements to the tubes of heat exchange devices : en
  • FR871400A - Compound lamp : en fr
  • DE720035C - Liquid level indicator for fixed large containers : de en
  • CA404232A - Thermostat : en fr
  • US2280307A - Process of manufacturing paper : en
  • US2280429A - Snubber : en
  • DE719988C - Drive device for the feed wheel with speed change gear in sewing machines : de en
  • US2280663A - Rotary conveying mechanism for conveying the products of printing machines : en
  • US2280108A - Sole and method of making : en
  • US2280440A - Shoe shank : en
  • US2280694A - Vehicle passenger safety device : en
  • US2280737A - Reversible motion picture camera : en
  • US2280069A - Machine for applying folded strip : en
  • US2280196A - Brake : en
  • US2280424A - risser : en
  • USD132154S - Handle for electric irons and the like : en
  • US2280605A - Piezoelectric crystal filter circuit : en
  • US2280528A - Electronic switching apparatus : en
  • US2280444A - Elevating device for cots and the like : en
  • GB544588A - Portable wheel scale : en
  • CA404182A - Moisture control means for drying machines : en fr
  • CA404303A - Textile fibre production : en fr
  • GB544679A - Improvements in or relating to washing machines : en
  • DE719913C - Brake body made of synthetic carbon with a cast metal frame : de en
  • US2280263A - Container closure and dispenser for semiliquid products : en
  • DE720127C - Circuit arrangement for X-ray apparatus : de en
  • CA404202A - Aluminium electrical conductivity improving method : en fr
  • CA404234A - Electromagnetic testing system : en fr
  • US2280490A - Wrist strap : en
  • USD132104S - Design for a doll cradle : en
  • US2280311A - Stabilization of aldehydes : en
  • US2280391A - Tobacco leaf hanger : en
  • US2280229A - Multiple spindle broaching lathe : en
  • FR871309A - Method for trimming nets with a comb : en fr
  • US2280508A - Manufacture of sulphuric acid : en
  • DE719926C - Spoke lock for bicycles : de en
  • US2280082A - Manufacture of drying oils : en
  • US2280459A - Measuring instrument : en
  • US2280766A - Control system : en
  • CA404192A - Concrete arch form : en fr
  • CA404279A - Calcium hypochlorite product : en fr
  • US2280156A - Work clamping device for machine tools : en
  • US2280200A - Concentric conductor transmission line : en
  • USD132143S - Design for an ironing machine cabinet : en
  • US2280239A - Sanitary preserving can or container and the making of it : en
  • CA404325A - Hay press wire tying device : en fr
  • CA404309A - Typing machine : en fr
  • US2280276A - Brick machine mold trimmer : en
  • US2280502A - Cutter chain : en
  • CA404183A - Light valve control : en fr
  • US2280750A - Film live-filing system : en
  • USD132144S - Frh zsi : en
  • US2280575A - Phonograph : en
  • GB544665A - Improvements in and relating to earth excavating scrapers : en
  • CA404199A - Electric condenser : en fr
  • CA404168A - Rubber heel : en fr
  • DE720039C - Seal, consisting of a graphite or graphite carbon ring with a metallic jacket : de en
  • CA404222A - Alcoholysis of b-alkoxy methyl ethers : en fr
  • CA404308A - Car truck rolling centre bolster : en fr
  • US2280336A - Protector for beer can openers : en
  • US2280318A - Railroad car : en
  • CA404315A - Electric motor and apparatus : en fr
  • AU115008B2 - Improvements in or relating to telegraph systems : en
  • CA404201A - Food wrapper : en fr
  • CA404285A - Diode rectifier circuit : en fr
  • US2280155A - Carton structure : en
  • AU146541A - An improved locknut : en
  • GB544644A - Improvements in or relating to electric circuit interrupters : en
  • US2280408A - Polish rod hanger and rotator : en
  • US2280722A - Color photography : en
  • US2280299A - Chuck : en
  • DE720017C - Arrangement for the generation of impulses of any composition, but each precisely defined length for measuring the distortion of telegraph lines, relays, etc. like : de en
  • DE720055C - Filling device : de en
  • DE720012C - Process for the preparation of chloronaphthalene mixtures containing aliphatic or alicyclic groups : de en
  • GB544715A - Manufacture of coating, impregnating and like compositions : en
  • US2280358A - Window shade or the like : en
  • US2280729A - Movable canopy and cockpit cover : en
  • US2280356A - Friction clutch : en
  • US2280455A - Road joint : en
  • US2280743A - Piston ring device : en
  • US2280753A - Housing and support for engine camshafts : en
  • US2280486A - Modeling instrument : en
  • DE719931C - Process for the production of antique surfaces on wood, paper, cardboard, wallpaper and other materials : de en
  • CA404219A - Chemical process : en fr
  • SE104325C1 - : en
  • CA404215A - Shoe sole and heel : en fr
  • US2280228A - Electron beam discharge device : en
  • AU305741A - Improvements in milking machines : en
  • USRE22078E - Sliver formation : en
  • CA404223A - Adhesive tape : en fr
  • US2280629A - Arc welding apparatus : en
  • US2280106A - Cable tension controller : en
  • US2280472A - Fabric drawing-off mechanism for knitting machines : en
  • US2280211A - Machine for chopping nut meats : en
  • US2280690A - Wick-type oil burner : en
  • US2280562A - Tunable nondirective loop circuits : en
  • USD132159S - Design for a suit : en
  • US2280423A - Cinder grinder : en
  • US2280091A - Press bed drive : en
  • US2280186A - Signal : en
  • US2280453A - Harvester : en
  • US2280616A - Electric circuit breaker : en
  • US2280110A - Direction signal switch : en
  • CA404169A - Signal and indicator for record sheets : en fr
  • DE720073C - Device for deep drilling : de en
  • USD132117S - Design foe a calendar : en
  • US2280187A - Carrier-signal receiver : en
  • US2280241A - Humidity measuring apparatus : en
  • US2280397A - Vibrating unit : en
  • US2280762A - Polishing and finishing tool : en
  • US2280637A - Means for balancing wheels : en
  • FR51311E - : fr
  • US2280492A - Apparatus for testing transmission systems : en
  • US2280162A - Coupler or separable fastener : en
  • US2280302A - Vehicle undercarriage : en
  • FR871365A - Gas carburettor more especially acetylene : en fr
  • FR871328A - Economical coal fuel : en fr
  • US2280479A - Garment : en
  • US2280292A - Teletypewriter switching system : en
  • US2280446A - Vibrator sanding and polishing machine : en
  • CA404207A - Railway car truck : en fr
  • AU115002B2 - Improvements in or relating to buildings or structures : en
  • CA404165A - Sewage treating apparatus : en fr
  • US2280205A - Slicing machine : en
  • DE720098C - Automatic belt turnbuckle for belt bucket elevators : de en
  • US2280373A - Machine for cutting soap : en
  • DK59680C - Closure for Oven Doors. : da en
  • US2280109A - Beat frequency altimeter : en
  • US2280123A - Pouring spout container : en
  • US2280377A - Disconnecting and reverse mechanism : en
  • CA404243A - Electrical socket : en fr
  • USD132142S - Design fok a surgical knife : en
  • US2280464A - Railway track circuit apparatus : en
  • CA404167A - Container for projectile fuzes : en fr
  • CA404256A - Bright copying hectrograph blanket : en fr
  • AU115003B2 - Apparatus for branching pipes under pressure and means for using same : en
  • US2280085A - Sugar from sorghum juices : en
  • US2280754A - Brake arrangement : en
  • US2280549A - Locking device for throttle valves : en
  • DE719953C - Automatic tuning device with push buttons for radio receivers u. like : de en
  • FR871347A - Method and devices for phonograph teaching applications : en fr
  • US2280627A - Automatic arc welding apparatus : en
  • USD132148S - Design fob a dress ensemble : en
  • US2280223A - Coated electrode and welding rod : en
  • US2280683A - Automatic clutch : en
  • USD132147S - Design fok a dress ensemble : en
  • US2280335A - Cigarette box packing device : en
  • US2280344A - Latch needle for circular knitting machines : en
  • US2280402A - Dental operating lamp : en
  • US2280274A - Vertebrae manipulating and massaging device : en
  • AU115001B2 - Improvements in or relating to buildings or structures : en
  • CA404268A - Paper feeding device : en fr
  • CA404196A - Grinding material testing machine : en fr
  • CA404323A - Conveyer : en fr
  • CA404251A - Article sorting machine : en fr
  • US2280539A - Intermittent switch : en
  • USD132164S - Design foe a muff : en
  • US2280129A - Process for manufacturing fertilizer : en
  • US2280482A - Transparent closure and the like : en
  • DE719888C - Process for the production of reductodehydrocholic acid : de en
  • DE719923C - Improvement of the foaming effect of saponins : de en
  • CA404291A - Light reflection reduction from surfaces : en fr
  • CA404195A - Railway car body suspension and truck : en fr
  • CA404240A - Motor control system : en fr
  • DE720155C - Arrangement to compensate for mains voltage fluctuations in electron beam oscillographs with Braunschweig tubes for mains connection operation : de en
  • DE720131C - Clamping device for the rotating wedges of a coupling : de en
  • DE720169C - Single or multi-seat, self-acting, ring-shaped working valve for high-speed piston machines, especially piston compressors : de en
  • US2280669A - Engine : en
  • FR871448A - Brake coupling, hydraulically operated : en fr
  • FR871307A - Winch especially for dump trucks : en fr
  • CA404225A - Artificial sponge production : en fr
  • DE720016C - Curved or straight carbon bow : de en
  • AU520442A - Process for laundering with hard water and soap or other laundering agents, and means for performing said process : en
  • DK59679C - Liquid control device for Dishwashers, especially for Household use. : da en
  • US2280178A - Aluminum alloy : en
  • US2280558A - Bumper and license plate holder : en
  • US2280728A - Telescoping high frequency electrical conductor : en
  • CA404297A - Solvent treatment for oil : en fr
  • US2280055A - Transparent plastic materials : en
  • US2280399A - Buffing wheel : en
  • US2280463A - Combination tool : en
  • US2280770A - Automatic arc welding machine : en
  • CA404173A - Holder for articles to be grated : en fr
  • CA404252A - Insulating bat : en fr
  • US2280226A - Flaw detecting device and measuring instrument : en
  • US2280273A - Refrigeration : en
  • AU101741A - Improvements in or relating to compositions for use in agriculture or horticulture : en
  • US2280120A - Coat : en
  • US2280763A - Phonographic apparatus : en
  • CA404205A - Flux for hard metal solders : en fr
  • DE720086C - Slurry tank with a horizontal perforated distribution pipe : de en
  • FR871370A - Electric circuits : en fr
  • US2280169A - Aluminum alloy : en
  • CA404301A - Manifold strip separating machine : en fr
  • CA404241A - Physiologically active alkaloid : en fr
  • US2280269A - Suction cleaner : en
  • DE719877C - Process of chrome-plating objects made of iron and steel : de en
  • AU165740A - Improvements relating tothe production of motor fuel : en
  • US2280323A - Vending machine : en
  • CA404267A - Blasting charge : en fr
  • FR871305A - Repair spring for clockwork movements with a pendulum escapement comprising a spring which can be inserted laterally and method for producing such a spring : en fr
  • FR871318A - Cable for mobile telecommunications installations with tapered junction pieces of the cable sections with their connecting devices : en fr
  • FR871388A - Mixed product for biscuits and pastry : en fr
  • CA404312A - Resilient engine mount : en fr
  • DE719830C - Process for the production of salts of higher molecular phosphatidic acids : de en
  • DE720058C - Crystal filter with a bandwidth that can be changed outside the intrinsic bandwidth of the crystal : de en
  • FR871339A - Refrigeration machine with electrically operated compressor : en fr
  • FR871403A - Device for mixing different liquids : en fr
  • GB544700A - Improvements in stock-dividing mechanism for gear-cutting machines : en
  • US2280252A - Producing reinforced conduits : en
  • GB544615A - Method of forming a medicinal preparation : en
  • DE719987C - Spring roller mill : de en
  • US2280386A - Combined engine cylinder valve and fuel injector : en
  • GB544592A - Improvements in the driving of variable pitch propellers by several engines : en
  • GB544735A - Improved mode of and means for ventilating ships when blacked out : en
  • FR871302A - Tuning device for high frequency receiving and transmitting devices : en fr
  • FR871354A - Self-oiling device and diffuser for internal combustion engines : en fr
  • FR871433A - Device for fixing electric lines and similar applications : en fr
  • GB544717A - Improvements in or relating to cast hard metal alloys : en
  • US2280381A - Shoe rack : en
  • US2280271A - Fluid pump : en
  • US2280079A - Internal combustion engine : en
  • DE719995C - Cartridge feed for automatic firearms : de en
  • GB544642A - Catalytic dehydrogenation and aromatization : en
  • FR871327A - Variable crankset : en fr
  • DE719176C - Multi-phase metal vapor converter system : de en
  • DE720071C - Electronical devices : de en
  • FR871359A - Acetylene generator : en fr
  • US2280494A - Airplane stall indicator : en
  • DE720043C - Gas protection device for infants : de en
  • DE720064C - Process for the vacuum-tight introduction of power supplies etc. into the wall of a discharge vessel made of ceramic material : de en
  • FR871427A - Socket wrench : en fr
  • GB544730A - Improvements in electro-magnetic pressure measuring apparatus : en
  • FR871362A - Improvements to kilns for wood carbonization : en fr
  • DK59673C - Process for the Preparation of Glycoside Compounds of Phenolphthalein. : da en
  • GB544687A - Improvements in or relating to feeding devices for grinding machines : en
  • US2280073A - Method and apparatus for dehydrating liquid products : en
  • IE16194L - Street-lighting fittings : en
  • FR871441A - Mechanical recording process of a sound groove : en fr
  • US2280566A - Windshield wiper clip : en
  • DE719802C - Valve body with hollow spindle and hollow disk head for high valve accelerations and decelerations : de en
  • US2280350A - Suction cleaner : en
  • US2280442A - Protected blade : en
  • US2280075A - Detection of gas in drilling fluids : en
  • US2280337A - Method of making hollow metal aircraft propeller blades : en
  • DE719706C - Magnetron arrangement : de en
  • DE719999C - Suspension of electrical cables on excavators and similar devices : de en
  • US2280646A - Device for truing up shafts : en
  • GB544633A - Improvements in or relating to closures for containers : en
  • US2280204A - Method and means for removing flash : en
  • USD132150S - Design for a uniform dress : en
  • DE720130C - Self-watering basin : de en
  • DK59694C - Ready centrifuge for fermented and unfermented Juice. : da en
  • US2280538A - Trunk position circuit for carrier frequency communication systems : en
  • US2280604A - Telephone call transmitter : en
  • US2280756A - Regulating the growth of plants : en
  • FR871317A - Control of an exploration unit for shaping machines and more especially for machine tools producing turnings : en fr
  • FR871323A - Casting iron powder for metal-ceramic applications : en fr
  • GB544706A - Improvements in shells and fuzes for rifled guns : en
  • DE719852C - Existing counters : de en
  • DE719598C - Process for the preparation of aromatic sulfohalide sulfonic acids : de en
  • DE720113C - Closure for pressure vessel : de en
  • FR871351A - Improvements in the fabrication of asymmetric conductivity devices of the dry surface contact type : en fr
  • AU114999B2 - Improved union for use inthe filling of drums or other containers for liquids : en
  • USD132128S - Design fob a bottle : en
  • FR871443A - Accelerated heat exchange steam generator : en fr
  • US2280101A - Electric furnace and melting method : en
  • US2280140A - Fuel supply means for power plants : en
  • US2280697A - Shower curtain : en
  • USD132156S - Design fob a coat : en
  • GB544692A - Improvements in electric lighting fittings : en
  • DE720107C - Process for the production of air-resistant catalysts for the conversion of carbon-oxide-hydrogen mixtures : de en
  • US2280640A - Light reflecting and distributing ceiling structure : en
  • US2280254A - Refrigerator : en
  • US2280301A - Sulphur composition : en
  • US2280738A - Directional antenna : en
  • US2280067A - Endless band of film and reproducing apparatus for its use : en
  • US2280236A - Compounds of the cyclopentanopolyhydrophenanthrene series and process of producing the same : en
  • USRE22076E - Process of decreasing reflection of : en
  • GR9842B - FOOD. : el en
  • GB544707A - Manufacture of synthetic resins : en
  • FR871415A - Perfected wooden sole shoe : en fr
  • US2280188A - Head for use on preformed strand and wire rope machines : en
  • FR51325E - Improvements to self-suction rotary pumps : en fr
  • FR871393A - Device for controlling the action of the brakes, in particular on vehicles running on rails : en fr
  • DE719942C - Process for the production of acetic anhydride : de en
  • FR871355A - Improvements to vehicles with electric traction by accumulators : en fr
  • GB544689A - Improvements in containers made from cardboard or similar material : en
  • DE720013C - Process for the production of formic acid by saponifying formamide : de en
  • GB544716A - Improvements in or relating to brake linings : en
  • DE720144C - Device for the automatic feeding of ring-shaped or similar bodies of different diameters onto circular conveyors : de en
  • FR871346A - Improvements in saponification processes : en fr
  • US2280542A - Cabinet : en
  • DE720156C - Mandrel for turning garnet shafts : de en
  • DE720157C - Process for marking textile webs : de en
  • FR871344A - Intercrystalline corrosion resistant steel alloys : en fr
  • GB544655A - Improvements in or relating to apparatus for applying coatings to materials : en
  • DE720010C - Partition for Spuelgassschwelefen : de en
  • US2280257A - Resistor device and method of making the same : en
  • DE720138C - Glass washing machine : de en
  • DE719951C - Radio with push button operation : de en
  • DE720011C - Process for the production of high molecular weight substances : de en
  • FR871439A - Method for transmitting images using pre-imaging accumulator tubes : en fr
  • US2280286A - Addition agent and its use in the treatment of iron and steel : en
  • US2280567A - Vehicle storage device : en
  • USD132109S - Design for a burial casket : en
  • US2280607A - Frequency modulation receiver tuning indicator : en
  • DE720031C - Regulator for heat exchangers of air conditioning systems : de en
  • FR871446A - Fuse circuit breaker with indicating and tripping device : en fr
  • US2280225A - Kitchen utensh : en
  • GB544669A - Improvements in or relating to hydraulic braking and like systems : en
  • US2280212A - Tufting machine : en
  • DE720099C - Device for drying grainy or lumpy goods : de en
  • US2280077A - Machine for cleaning and treating floors : en
  • US2280130A - Process for manufacturing fertilizer : en
  • US2280406A - Light projector : en
  • DK59672C - Process for the preparation of high molecular weight amino acid polymer anhydrides, preferably those with a predominantly basic character. : da en
  • FR871338A - Loaded direct current circuit breaking system : en fr
  • GB544698A - Rivetting device : en
  • GB544639A - Improvements in demagnetization : en
  • US2280153A - Fluid pressure producing device : en
  • DE719962C - Tower-like regenerative gas or air heater : de en
  • DE720085C - Process for cleaning the air from living spaces, factories, etc. like : de en
  • FR871432A - Manufacturing process of sodium persulfates : en fr
  • USD132140S - Combined hair winding key and smoothing pin : en
  • US2280317A - Fuel supply mechanism : en
  • US2280765A - Gas turbine thermic engine : en
  • US2280243A - Switch : en
  • US2280347A - Axle mounting : en
  • USRE22077E - Suction cleaner : en
  • US2280260A - Solvent dewaxing process : en
  • US2280580A - Coin controlled mechanism for dispensing machines : en
  • DE719258C - Shot counters, especially for firearms installed on aircraft : de en
  • USD132113S - Design for a broom : en
  • US2280164A - Tobacco box and package : en
  • US2280277A - Tufting attachment : en
  • US2280324A - Pie making machine : en
  • US2280584A - Locking ring for wheels : en
  • CA404194A - Metallo amido derivative : en fr
  • CA404275A - Textile fabric : en fr
  • US2280233A - Power set flow meter : en
  • DK59685C - Cooling unit for Drive system with Internal combustion engine. : da en
  • US2280581A - Light-screening device for lamps : en
  • US2280559A - Direction signal for vehicles : en
  • AU114992B2 - Diving mask : en
  • CA13278S - Chair : en
  • US2280065A - Vehicle : en
  • US2280718A - Ironer cabinet : en
  • US2280585A - Expansion turbine for low temperature plants : en
  • US2280643A - Amusement apparatus : en
  • DE719928C - Coupling for coaxial shafts, especially for the cranks of sliding windows : de en
  • DE719976C - Utility water heater combined with a hot water heating system : de en
  • DE720027C - Device for lining rotating drums : de en
  • US2280224A - Carbon deleaving machine : en
  • US2280648A - Latch : en
  • US2280214A - Juice extractor : en
  • US2280564A - Uncoiling device : en
  • CA404299A - Thermoplastic sill and door seal : en fr
  • DE719798C - ID card holder : de en
  • US2280504A - Process for producing compounds of the diaryl series : en
  • US2280589A - Pneumatic pump : en
  • US2280105A - Cable tension governor : en
  • GB544701A - Portable wheel scale : en
  • CA404263A - Nickel base alloy : en fr
  • DE719933C - Toy train : de en
  • AU60541A - Improvements in wet battery cases : en
  • US2280430A - Method of and means for removing a tire from a mold : en
  • DE720051C - Fluid vortex brake for motor vehicles : de en
  • DE720067C - Herbicides : de en
  • US2280330A - Power circuit for electrical precipitators : en
  • US2280660A - Reinforced cylinder : en
  • US2280199A - Heel-end lasting machine : en
  • US2280295A - Bit : en
  • US2280735A - Brush holder and tension device : en
  • USD132129S - Design for a bkooch : en
  • US2280092A - Machine for and method of forming folded toilet seat covers : en
  • US2280617A - Moisture determining apparatus : en
  • CA404324A - Envelope sealing machine : en fr
  • AU128641A - Improved funnel for holding a supply hosein place when filling liquid fuel into a tractor or truck or other fuel tank : en
  • CA404318A - Directional antenna : en fr
  • DE719835C - Voltage amplifier stage of a low frequency amplifier with transformer in the anode circuit of a tube : de en
  • US2280160A - Luminaire : en
  • US2280193A - Quick action presser foot : en
  • US2280372A - Agricultural implement : en
  • US2280498A - Sanding machine : en
  • US2280332A - Automatic loader for power bowling machines : en
  • US2280394A - A- j- grindle : en
  • US2280432A - Starter mechanism : en
  • GB544640A - Improvements in or relating to the production of phosphate coatings on ferrous metal surfaces : en
  • USD132102S - Design for a plate or similar article : en
  • DE719971C - Process for manufacturing the control surface on hydraulic transmissions : de en
  • USD132103S - Design for an airplane kite : en
  • DE719925C - Direction indicator, the angle arm of which performs an up and down swinging movement generated by an electric motor in the display position : de en
  • AU115004B2 - New or improved means for purifying and / or cleansing gases : en
  • FR871406A - Process for the continuous chlorination of crude celluloses and device for implementing this process : en fr
  • US2280103A - Rolled copper alloy article : en
  • US2280516A - Method op treating magnesia and electrical insulating : en
  • AU115013B2 - Improvements inthe sealing of cartons : en
  • CA404287A - Tuned ultra-high frequency amplifier : en fr
  • US2280553A - Attachment for safe knobs : en
  • DE719990C - Suspension arrangement on heat exchange plates of plate apparatus : de en
  • FR871380A - Process for preparing polymer bodies : en fr
  • GB544598A - Improvements relating to the cooling of aircraft engines : en
  • DE720083C - Process for the production of flat end plates for electric lamps and discharge tubes interspersed with power supply wires : de en
  • FR871301A - Device for drawing metal wires : en fr
  • US2280114A - Safety switch for well pumping units : en
  • US2280645A - Internal combustion engine : en
  • US2280711A - High tension apparatus : en
  • AU115005B2 - Improvements relating to radio receivers provided with two output circuits fromthe same output valve : en
  • GB544664A - Improvements in the manufacture of hydrogen : en
  • AU143415B2 - Process for laundering with hard water and soap or other laundering agents, and means for performing said process : en
  • DK59681C - Low pressure steam heater of lattice-shaped welded pipes. : da en
  • FR871329A - Improvements to direction finders without night effect : en fr
  • DE720065C - Method for fastening metallic holding parts on ceramic insulating bodies, which are used to hold the electrodes within electrical discharge vessels : de en
  • DE720170C - Idle control device for high-pressure compressors, especially of air brake systems for motor vehicles : de en
  • US2280132A - Organic arsenic compound and method of obtaining the same : en
  • US2280667A - Mixing device : en
  • US2280593A - Harmonic slide rule : en
  • US2280670A - Cathode ray tube circuit : en
  • US2280179A - Alloy : en
  • US2280496A - Liquid pressure regulator for injection pumps : en
  • CA404197A - Hatband : en fr
  • DE719979C - Manganese alloys with a high expansion coefficient : de en
  • DE720096C - Height straightening device on support devices of machine weapons : de en
  • DE720106C - Process for the production of ammonium compounds from ammonia water containing phenol : de en
  • FR871333A - Cracking process and resulting new products : en fr
  • US2280265A - Laxative : en
  • CA404200A - Harvester : en fr
  • US2280365A - Method of bottling beverages : en
  • AU114996B2 - Improved means for use in speying cows : en
  • DE719922C - Gear change transmission : de en
  • DE719737C - Heat transfer medium : de en
  • FR871320A - Cinematographic camera with electric light meter mounted in the camera : en fr
  • DE720082C - Process for the production of fire and weatherproof transformers with concrete encasement : de en
  • US2280510A - Motor cleaner : en
  • GB544649A - Manufacture of polymeric materials : en
  • CA404259A - Hat display case : en fr
  • GB544627A - Improved gauges for splined parts, gear members and the like : en
  • US2280578A - Amides of aliphatic polycarbothionic acids and their preparation : en
  • AU194241A - Diving mask : en
  • CA404321A - Folded paper napkin : en fr
  • DE720118C - Arrangement for rectifying carrier frequencies modulated with television frequencies : de en
  • US2280595A - Control device : en
  • DE720005C - Bedding material for diamond splinters : de en
  • FR871387A - Process and device for the preparation of linear condensation polymers, fuses : en fr
  • FR871435A - Gear transmission : en fr
  • US2280577A - Oil filter : en
  • US2280072A - Substituted phthalocyanines : en
  • US2280283A - Deep-hardening boron steels : en
  • GB544614A - Improvements in and relating to remote control systems : en
  • US2280393A - Oven thermometer : en
  • US2280064A - Inductive heating apparatus : en
  • US2280636A - Latex rubber casting : en
  • US2280733A - Deflecting circuits : en
  • US2280519A - Container and holder for air guns : en
  • US2280331A - Apparatus for propelling bowling balls : en
  • GB544583A - Improvements in or relating to the treating of articles by the heating action of high frequency electric fields : en
  • US2280714A - Feathering propeller control : en
  • US2280657A - Breather roof : en
  • USD132099S - De hymel : en
  • AU111341A - Improvements in or relating to telegraph systems : en
  • GB544587A - Improvements in or relating to furnaces for treating waste liquors : en
  • CA404281A - Aluminium alloy : en fr
  • DE720090C - Telescopic tube-like shock absorber, in particular strut for aircraft : de en
  • GB544616A - Improvements in or relating to circuit arrangements including discharge tubes : en
  • USD132126S - Cigarette box or similar article : en
  • FR871423A - Foot for precision devices or machines and in particular for office machines : en fr
  • FR871434A - Method and device for steering a vehicle in a prescribed direction passing through a point : en fr
  • US2280097A - Window and the like : en
  • FR871382A - Support body for the elastic connection of the group of axle control elements to the rest of the car : en fr
  • GB544724A - Improvements in or relating to devices for indicating in connection with the progress of moving bodies : en
  • DK59684C - Device at Metal plates core barrels. : da en
  • FR871368A - Flow and speed regulation device in hydraulic devices, pumps, motors and variable speed drives : en fr
  • GB544670A - Improvements in self-sealing pneumatic tyres for vehicle wheels : en
  • CA404204A - Luminous or fluorescent floor covering : en fr
  • DE719941C - Device for smoothing and loosening the pipes produced on a push bench from the mandrel bar : de en
  • DE720008C - Process for the preparation of sugar solutions of any origin for the production of a mash for rum or arrac distillates : de en
  • US2280385A - Bearing : en
  • CA404193A - Headlight : en fr
  • US2280404A - Motion checking or snubbing device : en
  • AU118445B2 - Improvements relating to tap or die holders for use in screw threading operations : en
  • CA404245A - Internal combustion engine : en fr
  • US2280168A - Process of preparing cuprous oxide : en
  • US2280641A - Transmission shifting mechanism : en
  • US2280635A - Mold for producing concrete blocks : en
  • USD132155S - Design for a slack suit : en
  • CA404237A - Precipitator ionizing wire support : en fr
  • US2280149A - Power operated hand tool : en
  • US2280143A - Multicircuit switch : en
  • US2280476A - Support for rural mail boxes, road markers, and the like : en
  • US2280158A - Two-way signal transmission system : en
  • US2280343A - Battery retaining and tensioning means for hand lanterns : en
  • CA404236A - Spark gap device : en fr
  • AU111241A - Frequency deviation alarm circuit : en
  • US2280396A - Human hoist : en
  • DE720078C - Process for the recovery of 2,3,6-trimethylnaphthalene : de en
  • US2280707A - Apparatus for and method of frequency modulating : en
  • CA404224A - Blasting fusehead : en fr
  • US2280309A - Valve device : en
  • DE720091C - Hollow propeller blades made of wood : de en
  • DE719964C - Thread guide box for flat knitting machines : de en
  • FR871390A - Dust chamber : en fr
  • US2280266A - Conducting and dispensing system for beer : en
  • US2280289A - Sewing machine : en
  • US2280383A - Method and apparatus for extracting an auxiliary product of rectification : en
  • US2280569A - Frequency modulation receiver : en
  • US2280649A - Manufacture of catalysts : en
  • USD132137S - Design for a playing card holder and dispenser : en
  • DE719861C - Truck with tiltable loading bridge : de en
  • GB544682A - Improvements in or relating to high frequency tanks and resonant cavities : en
  • FR871358A - Improvements made to the manufacture of seat covers for cycles and motorcycles : en fr
  • CA404214A - Dry cell : en fr
  • CA404266A - Hollow propeller blade manufacture : en fr
  • DE719963C - Underneath the wind grate with zone ventilation : de en
  • FR871397A - Hurry : en fr
  • US2280744A - Scavenger piston ring : en
  • DE719959C - Crystal light relay : de en
  • DE720120C - Arrangement for viewing fluorescent images in color impression using light filters : de en
  • US2280206A - Motion picture theater : en
  • US2280314A - Method of making inflatable balls : en
  • USD132101S - Design fob a plate or similar article : en
  • DE719875C - Device for checking punched payment cards : de en
  • US2280290A - Method of preparing alpha alpha beta-trihalogen substituted butyraldehydes : en
  • US2280662A - Steering post for cycles and the like : en
  • DE720168C - Chimney with fly ash separator : de en
  • FR871353A - Liquid detergent product and its manufacturing process : en fr
  • US2280364A - Vibration dampening device : en
  • US2280552A - Method and apparatus for manufacturing piston rings : en
  • DE720088C - Device for rerouting sheet metal in galvanic baths : de en
  • US2280758A - Hollow valve structure : en
  • DE720166C - insulator : de en
  • FR871312A - Door hinges, especially for automobiles : en fr
  • DE720149C - Thread brake for slip gate : de en
  • CA404211A - Viscous liquid delivering and diluting means : en fr
  • GB544659A - Improvements in or relating to photographic papers : en
  • GB544666A - Improvements in or relating to pumps : en
  • DE719929C - Protection, especially for large elevations : de en
  • FR871364A - Device for distributing an electric current between several contacts : en fr
  • GB544602A - Oil-guard for sewing machines : en
  • GB544635A - Improvements in and relating to ventilators : en
  • US2280457A - Illuminated fishing bob : en
  • US2280521A - Radio receiver : en
  • FR871437A - Apparatus for measuring the duration of the course of projectiles : en fr
  • US2280493A - Door control for electric pull sockets : en
  • US2280443A - Dispensing device : en
  • US2280320A - Ice machine : en
  • FR871311A - Process for carrying out endothermic reactions : en fr
  • CA404282A - Aluminium alloy : en fr
  • DE720006C - Process for the production of positive or negative copy originals or flat printing forms of positives or negatives : de en
  • DE719983C - Telescope, the objective of which has a collecting lens system and a concave mirror arranged on the same axis : de en
  • DE719967C - Process for the production of dental workpieces from porcelain : de en
  • FR871363A - Improvements to binocular binoculars : en fr
  • US2280061A - Radiant mantle : en
  • US2280447A - Jet compressor for power plants : en
  • US2280232A - Refrigerator car door : en
  • DE719812C - Replaceable cylinder lock : de en
  • DE720050C - Control device for preventing the promotion of the high pressure compressor of a compressed air brake system for vehicles with trailers : de en
  • DE719804C - Mulden vibratory mill : de en
  • FR871334A - Oil pump or similar for internal combustion engines : en fr
  • USRE22075E - Electric current converting : en
  • US2280618A - Electric gaseous discharge device : en
  • US2280678A - Apparatus for the measurement of electrical reactance : en
  • US2280445A - Fkactlom : en
  • CA404280A - Button processing machine : en fr
  • DE719984C - Device for automatic feeding of cattle : de en
  • US2280621A - Meat cutting machine : en
  • US2280544A - Chick box structure : en
  • AU114986B2 - Improvements in wet battery cases : en
  • CA404180A - Wheel machining apparatus : en fr
  • US2280322A - Ophthalmic lens : en
  • US2280124A - Mower : en
  • AU115009B2 - An improved locknut : en
  • DE720042C - Device for flame cutting of pipes : de en
  • US2280054A - Adjustable liner for well casings : en
  • AU114989B2 - Improvements relating tothe immunizing of seed from pest attack : en
  • US2280321A - Gas blast circuit breaker : en
  • US2280505A - Lighting fixture : en
  • US2280087A - Pumping apparatus : en
  • US2280240A - Method and apparatus for impinging powdered material : en
  • CA404179A - Fluid gas gun : en fr
  • CA404261A - Moulding press loading and emptying mechanism : en fr
  • US2280705A - Tobacco casing machine : en
  • US2280579A - Roofing surface : en
  • FR871375A - Water gasifier : en fr
  • US2280540A - Window : en
  • FR871386A - Seal for pressurized fluid lines : en fr
  • CA404231A - Battery charger : en fr
  • US2280698A - Circular knitting machine : en
  • USD132096S - Design for a utility stand : en
  • CA404290A - Light transmitting article surface treatment : en fr
  • US2280086A - Gas detection : en
  • US2280573A - Filament transporting method and apparatus : en
  • DE720115C - Drum-shaped mechanical image scanner for television use : de en
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  • US2280452A - Preparation of ferro-chromium in blast furnaces : en
  • CA404163A - Metal component grinding machine : en fr
  • US2280353A - Temperature control system : en
  • US2280517A - Electrical insulation of modified : en
  • US2280757A - Valve : en
  • GB544673A - Improvements in and relating to chromium containing azo dyestuffs : en
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  • AU114995B2 - Improvements relating to tuning means for radio receivers andthe like : en
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  • US2280437A - Releasable permanent magnet holding device : en
  • USD132106S - Design for a seed packet display device : en
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  • US2280483A - Drying time recorder : en
  • US2280267A - Method and apparatus for treating orchards for frost and plant pests : en
  • US2280628A - Arc welding apparatus : en
  • USD132163S - Design fob a muff : en
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  • US2280122A - Door clamping device : en
  • CA404271A - Steel backed bronze bearing : en fr
  • US2280325A - Flow and pressure measuring device : en
  • CA404250A - Electrical horn control device and system : en fr
  • US2280471A - Apparatus employed in the hardening and tempering of armor-piercing projectiles and the like : en
  • US2280217A - Super-diesel fuel : en
  • FR871394A - Antagonistic magnetic pole in electricity meters : en fr
  • US2280251A - Combination bootjack device : en
  • US2280359A - Sheet metal forming apparatus : en
  • GB544578A - An improved compound internal combustion engine : en
  • IE17399L - Selenium, etc. dry rectifiers : en
  • US2280473A - Terrace building apparatus : en
  • USD132141S - Design fob a badge ob szyihab aeticle : en
  • US2280063A - Method and agent for treating iron and steel : en
  • US2280515A - Electrical insulating material and method of producing the same : en
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  • US2280119A - Method and apparatus for electrically testing protective coatings and the like : en
  • US2280310A - Treatment of leather : en
  • FR871352A - Solid detergent product and its manufacturing process : en fr
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  • GB544726A - Improvements relating to cop-changing mechanism for automatic looms : en
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  • US2280333A - Production of marbled cementitious floors : en
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  • US2280255A - Apparatus for making headers : en
  • US2280172A - Aluminum alloy : en
  • US2280462A - Oil cup : en
  • FR871314A - Alcohol gas stove : en fr
  • GB544646A - Improvements in or relating to the manufacture of dyestuffs and dyestuff intermediates : en
  • GB544654A - Improvements in or relating to devices for drawing cables through conduits : en
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  • US2280407A - Heater control : en
  • US2280416A - Urine pump : en
  • US2280264A - Solvent treating process : en
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  • US2280576A - Means for changing the expression of the face : en
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  • US2280546A - Protein solution, paint, and method : en
  • US2280400A - Apparatus for detecting and/or preventing ice formation : en
  • USD132114S - Design for a pair of spectacles : en
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  • US2280696A - french : en
  • US2280051A - Refrigeration : en
  • US2280136A - Apparatus for decorating fabric : en
  • GB544618A - Improvements relating to cleats or fair-leads for pipes, cables and the like : en
  • US2280666A - Frame for spectacles : en
  • GB544719A - Improvements in plants for producing a mixture of hot air and combustion products under pressure : en
  • GB544652A - Improvements relating to securing containers : en
  • GB544677A - Improvements in or relating to photographic sensitising dyestuffs : en
  • CA404190A - Can opener affixing machine : en fr
  • US2280134A - Vehicle brake : en
  • US2280210A - Generator : en
  • US2280450A - Lubricant : en
  • US2280634A - Joint construction : en
  • US2280700A - Pointer for dials : en
  • US2280489A - Frosted lamp : en
  • FR871409A - Connection for converters at the end of the power transmission line in high voltage direct current : en fr
  • US2280601A - Container : en
  • US2280675A - Vehicle-operated door : en
  • FR871392A - Continuously adjustable hydraulic mechanism with rotating cylinder block and rotating oblique plate : en fr
  • GB544723A - Improvements in and relating to indicating apparatus : en
  • FR871407A - Recoil mounted gun on a carriage : en fr
  • GB544600A - Improvements in or relating to light valves : en
  • GB544645A - Improvements in or relating to photographic sensitising dyestuffs : en
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  • AU102841A - Improvements relating to tuning means for radio receivers andthe like : en
  • GB544643A - Improvements relating to pressure-responsive devices for valve actuation : en
  • AU114990B2 - Improved funnel for holding a supply hosein place when filling liquid fuel into a tractor or truck or other fuel tank : en
  • CA404286A - Printing telegraph system : en fr
  • DE719869C - Process for making a shelf stable, grained superphosphate : de en
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  • US2280460A - Apparatus for use in insulating structures : en
  • GB544658A - Improvements in or relating to optical objectives : en
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  • GB544711A - Improvements in or relating to self-laying tracks for tractors or the like : en
  • US2280096A - Phototypographic type body : en
  • US2280291A - Power transmitting system : en
  • US2280703A - Process for granulating metals : en
  • DE720103C - Method of making a fire lighter : de en
  • DE720143C - Device for evenly distributing the goods to be conveyed to different delivery points in the case of entrainment conveyors for bulk goods with loading on the upper run : de en
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  • US2280312A - Razor blade sharpener : en
  • CA404272A - Carton : en fr
  • FR871361A - Device for fixing telescopic rods, in the feet for cameras and others : en fr
  • GB544628A - Refractories and methods of making the same : en
  • DE719955C - Enamelled wire : de en
  • DK59688C - Procedure and Press for Laying down Green Feed. : da en
  • FR871381A - Degassing process for thomas cast iron in the converter : en fr
  • DE720159C - Bunker arranged above the smoldering furnace : de en
  • DE719921C - Planetary gear change gear with several three-part individual planetary gear drives : de en
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  • DE719902C - Construction and installation of a liquid switch in a high-voltage line system : de en
  • DE720117C - Method for the remote transmission of synchronizing pulses in gap synchronization methods for television broadcasts : de en
  • DE719981C - Process and device for monitoring work that has been performed with varying degrees of intensity over time : de en
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  • FR51315E - Projectile or grape or armor-piercing bomb for mobile or fixed targets of great efficiency and multiple effects : en fr
  • FR871336A - Typewriter Improvements : en fr
  • GB544582A - Improvements in or relating to ammonium nitrate explosives : en
  • GB544681A - Improvements relating to the insulation of electrical apparatus : en
  • DE720141C - Signing of optical interfaces : de en
  • GB544594A - Improvements in or connected with electric switch bases or the like : en
  • GB544725A - Improvements relating to assemblies consisting of nuts, screws or the like combined with washers : en
  • US2280727A - Driving mechanism : en
  • DE720074C - Method and device for mixing the Lickoers and simultaneously cleaning the outside of the bottles during sparkling wine production : de en
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  • GB544691A - Apparatus for use in the hardening and tempering of steel articles : en
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  • DE720030C - Slot cover for conductor line ducts : de en
  • FR871326A - Improvements to carbon pellet microphones : en fr
  • DE720100C - Process for the preparation of o-nitrobenzyl alcohol : de en
  • GB544641A - Improvements in or relating to circuits for amplifying high-frequency oscillations : en
  • US2280139A - Carrier-signal receiver : en
  • US2280421A - Radio telephone system : en
  • US2280661A - Filtering circuits : en
  • US2280127A - Power transmitting mechanism for rail cars, motor vehicles, and the like : en
  • US2280741A - Axle : en
  • AU103141A - Improved means for use in speying cows : en
  • US2280527A - Oscillator drift compensation device : en
  • US2280633A - Air conditioning : en
  • FR871416A - Device for breaking molds and walls : en fr
  • US2280163A - Pattern reproducing machine : en
  • US2280602A - Drying fiber string material : en
  • US2280117A - Drift correction modulated beam : en
  • US2280194A - Wire or strip tensioning apparatus : en
  • US2280689A - Method of making composite articles : en
  • US2280230A - Crankshaft broaching lathe : en
  • US2280751A - Vacuum cleaner nozzle : en
  • US2280107A - Attachment for rolling colters : en
  • CA404166A - Container for projectile fuzes : en fr
  • CA404171A - Window : en fr
  • CA404255A - Bright copying hectograph blanket : en fr
  • US2280137A - Method of fabricating thermoelectric elements : en
  • US2280376A - Machine for playing tennis and the like : en
  • US2280609A - Puzzle and puzzle game : en
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  • US2280503A - Merchandise package : en
  • US2280135A - Conductive coating for glass and method of application : en
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  • US2280227A - Refining of petroleum distillates : en
  • FR871396A - Electric lighting fixture : en fr
  • US2280218A - Four column ejector : en
  • DE720036C - Device for displaying the running time of a work machine, in particular a welding device : de en
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  • USD132132S - Design for a plaque or similar article : en
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  • US2280242A - Maleic anhydride-ethylene glycolmethallyl alcohol resin : en
  • US2280488A - Method and apparatus for making stonelike units : en
  • US2280600A - Mass capable of swelling and thickening agents : en
  • US2280547A - Device for raising sunken vessels : en
  • US2280198A - Lubricating system : en
  • US2280671A - Method of making temperature stabilized shafts : en
  • USD132100S - Combined plate and saucer : en
  • FR871399A - Method and compositions for improving the combustion of natural or artificial solid fuels : en fr
  • GB544708A - Improvements in electric telegraphy : en
  • DE719950C - Adjustment device for high frequency devices : de en
  • US2280541A - Screen : en
  • DE720109C - Process for the production of a highly concentrated solution of a stable, high viscosity, partially saponified cellulose acetate : de en
  • GB544606A - Improvements in and relating to lamp fittings : en
  • US2280545A - Diode phase detector : en
  • US2280184A - Fastener : en
  • AU106141A - Improvements in or relating to buildings or structures : en
  • US2280484A - Reclaiming of rubber : en
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  • FR871424A - Automatic camera : en fr
  • US2280742A - Rotary internal combustion engine : en
  • US2280339A - Wood stave conduit : en
  • US2280171A - Aluminum alloy : en
  • CA404184A - Railway handlamp ventilation device : en fr
  • US2280474A - Lubricating oil : en
  • US2280620A - Apparatus for finishing tubular articles : en
  • US2280655A - Doorstop : en
  • USD132112S - Greeting card or similar article : en
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  • CA404270A - Sanitary napkin : en fr
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  • DE719978C - Cadmium-based bearing metal alloy : de en
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  • DE719905C - Selective protection device for direct current networks : de en
  • FR871340A - Direction indicator for bicycles : en fr
  • FR871367A - Improvements to gas generators : en fr
  • US2280732A - Convertible rocking chair : en
  • CA404216A - Soil treating composition : en fr
  • US2280256A - Polymerization of maleic acid-linseed oil fatty acids-ethylene glycol-allyl alcohol resin : en
  • US2280378A - Generating electric drive and control system : en
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  • CA404295A - Gasoline blending agent : en fr
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  • USD132133S - Design for a plaque or similar article : en
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  • US2280392A - Power transmission : en
  • US2280651A - Thermostat : en
  • US2280357A - Heavy-duty clutch : en
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  • US2280361A - Clamp : en
  • US2280367A - Electric heater : en
  • US2280351A - Swaging apparatus : en
  • US2280764A - Pressure-release mechanism : en
  • CA404235A - Lightning arrester : en fr
  • US2280534A - Lighting fixture : en
  • US2280752A - Locking device for brake bleed valves : en
  • US2280144A - Signaling system : en
  • US2280522A - Apparatus for feeding cylindrical metal shells : en
  • USD132105S - Counter stool or similar article : en
  • US2280088A - Container or capsule for highly compressed fluid media : en
  • US2280303A - Electron multiplier system : en
  • US2280435A - Garment hanger : en
  • CA404262A - Metal composite article manufacture : en fr
  • FR871442A - Machine tool, such as a lathe or bar turning machine, comprising a device intended to keep the cutting speed constant : en fr
  • US2280066A - Draghead for dredging apparatus : en
  • US2280644A - Emergency foot brake lever : en
  • US2280074A - Manufacture of hollow articles : en
  • USD132110S - Design for a burial casket : en
  • CA404198A - Soil moisture conserving material : en fr
  • CA404311A - Metallizing process : en fr
  • FR871377A - Process for hardening photographic emulsions based on silver halides, with simultaneous increase in sensitivity : en fr
  • FR871379A - Sole : en fr
  • US2280157A - Stand drive vehicle : en
  • US2280237A - Refining process : en
  • US2280340A - Vermicidal composition : en
  • GB544699A - Apparatus for removing dust from air or other gases : en
  • FR871330A - Assembly process for shoes with wooden soles : en fr
  • GB544611A - Improvements in appliances for machine tapping or screwing operations : en
  • CA404248A - Blowpipe tip : en fr
  • DE720048C - Suspension for vehicles with a rigid axle : de en
  • US2280167A - Glass working apparatus and method : en
  • US2280115A - Drilling machine : en
  • US2280639A - Complex compounds of quinates and diuretics : en
  • DE720019C - Subscriber connection circuit with call relay and special isolating relay : de en
  • DK59695C - Rivet stamp. : da en
  • FR871422A - Thread guide rollers for further processing of rayon threads : en fr
  • DE720041C - Tool holder : de en
  • US2280530A - Frequency modulated wave detector : en
  • FR871349A - Advanced steam engine : en fr
  • GB544696A - Improvements in detectors for frequency modulation : en
  • FR871324A - Manufacturing process of helical filaments for incandescent electric lamps : en fr
  • GB544675A - Improvements in or relating to the prevention of caking or setting of ammonium nitrate or ammonium nitrate compositions : en
  • GB544732A - Improvements relating to reinforced rubber packing washers, discs, gaskets and oil seals : en
  • GB544690A - Improvements connected with infra-red ray therapy and its application : en
  • DE720002C - Process for purifying hydrocarbons : de en
  • US2280070A - Container and closure therefor : en
  • US2280500A - Method and apparatus for treating wire rope : en
  • US2280511A - Poultry roost : en
  • US2280768A - Balancing weight for expansion roofs : en
  • USD132118S - Design for a set of numerals : en
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  • CA404296A - Borehole thermometer : en fr
  • US2280116A - Automatic means for caging gyroscopes : en
  • US2280375A - Piston mechanism : en
  • CA404186A - Tire and wheel : en fr
  • CA404238A - Abrasive cloth : en fr
  • CA404314A - Adhesive, etc. : en fr
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  • US2280327A - Grounding device for vehicles : en
  • US2280180A - Pinion assembly for hand brakes : en
  • DE720140C - Device for the gradual feeding of cartridges lying loosely next to one another to a weapon : de en
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  • US2280387A - Door operator : en
  • US2280287A - Liquid dispensing apparatus : en
  • DE720034C - Injection molding machine for thermoformable masses : de en
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  • US2280296A - Lubricating system for compressors or the like : en
  • GB544729A - Method for making a fuel consisting predominantly of normally fluid hydrocarbons in solidified form : en
  • FR871303A - Shoe with a rigid but elastic sole : en fr
  • US2280384A - Engine balancing : en
  • US2280632A - Consistency regulator : en
  • DK59682C - Upright Central heating boiler. : da en
  • FR871419A - Grain conditioning apparatus : en fr
  • US2280586A - Foldable leg table : en
  • USD132151S - Design for a combined display rack : en
  • US2280379A - Honing machine and method : en
  • US2280366A - Reversible explosive : en
  • FR871332A - Indicator device for heating elements : en fr
  • US2280111A - Electric welding : en
  • FR871319A - Permanent magnet : en fr
  • GB544609A - Improvements in closures for containers : en
  • US2280298A - Seat hinge : en
  • DE720094C - Grinding device for relatively thin, flat and band-shaped workpieces, in particular gang saw blades : de en
  • US2280456A - Conversion of single-phase alternating electric currents to polyphase currents : en
  • US2280525A - Frequency modulated wave detector : en
  • US2280591A - Building frame structure : en
  • US2280701A - Universal die implement : en
  • GB544623A - Improvements in or relating to air or gas compressors : en
  • CA404175A - Mileage indicator : en fr
  • US2280050A - Resuscitator : en
  • US2280305A - Volume control for hearing aids : en
  • US2280548A - Battle light : en
  • US2280380A - Tire removing tool : en
  • US2280481A - Routing machine : en
  • GB544638A - Improvements in or relating to dry absorption refrigerating machines : en
  • GB544620A - Improvements in electric lamp fittings : en
  • GB544637A - Spark plugs : en
  • US2280288A - Multiple buck pressing machine : en
  • US2280638A - Burner apparatus : en
  • FR871426A - Typewriter Typewriter Lever Holder : en fr
  • US2280739A - Gas burner and control unit therefor : en
  • US2280150A - Heating of metals : en
  • US2280615A - Backup valve : en
  • US2280688A - Electro-optical transmission system and apparatus : en
  • CA404292A - Pattern chain control mechanism : en fr
  • DE720135C - Wrapping device for films : de en
  • US2280501A - Container for fluids under pressure : en
  • FR871371A - Spraying machine for the treatment of thermoplastics : en fr
  • GB544596A - Improvements in microphones : en
  • US2280673A - Catalytic cracking : en
  • FR871389A - Lubrication device operated by several pumps, in particular for aircraft engines : en fr
  • CA404206A - Silver solder alloy : en fr
  • FR871337A - Electrical circuit breaker monitoring device for high and low voltage alternating and direct currents : en fr
  • FR871402A - Electrode-heated steam boiler : en fr
  • FR871372A - Process of heating with petroleum coke and producing a slag with a high content of metals or, respectively, of metallic compounds : en fr
  • AU115000B2 - Improvements relating tothe production of motor fuel : en