• US1981006A - French-binding straightening and cementing machine : en
  • US1981768A - Tractor middle buster hitch : en
  • US1981385A - Sanding machine : en
  • USD93898S - Design for a straw helmet hat : en
  • US1981607A - Manufacture of surgical bandages carrying plaster of paris : en
  • CA346247A - Grounding bushing : en fr
  • US1981002A - Electrical control system : en
  • US1981706A - Eyeglass construction : en
  • DE605954C - Lockable tilt stand for vehicles, especially motorcycles : de en
  • AU1569833A - Improvements in glazed metal frames : en
  • USD93883S - Design for a service station : en
  • FR773740A - Device preventing the projection of liquid out of the upward-directed interrupting chambers : en fr
  • US1981173A - Driving mechanism for steering wheels of motor vehicles : en
  • US1981692A - Feeding means for glass tube manipulating machines : en
  • US1981712A - Winding machine : en
  • US1981447A - Fence post : en
  • US1981663A - Decorative article : en
  • US1981129A - Heating of fluids : en
  • US1981131A - Apparatus for making hollow articles : en
  • US1981491A - Combination poker : en
  • CA346173A - Belt tightener : en fr
  • US1981120A - Back-fire release for internal combustion engines : en
  • US1981778A - Valve mechanism for rotary engines : en
  • FR773654A - Improvements in the treatment of olefinic hydrocarbons : en fr
  • US1981228A - Buster lead attachment for tractors : en
  • US1981505A - Clutch : en
  • US1981230A - Valve : en
  • US1981775A - Apparel protector : en
  • CA346194A - Lenticular film manufacture : en fr
  • US1981350A - Oscillograph : en
  • US1981439A - Apparatus for determining the proper relation between the vision fields of multifocal ophthalmic lenses : en
  • FR773544A - Calf bands : en fr
  • US1981188A - Vehicle position indicator : en
  • FR773540A - Wheel fitted with a handling device : en fr
  • US1981191A - Selvage trimming machine : en
  • US1981512A - Mechanism for effecting the between-needle movements of thread guides in warp-knitting machines : en
  • US1981541A - Pin lock : en
  • FR773645A - Device for mechanically determining results arising from trigonometric functions and ratios : en fr
  • FR44160E - Cross-winding yarns binding machine for bleaching, dyeing, etc. : en fr
  • DK49537C - Base plate for jugs and similar containers. : da en
  • GB419871A - Improvements in or relating to handles for shopping bags of paper or the like : en
  • US1981072A - Combination clothes hanger and camphor holder : en
  • DE605579C - Die dryer with vertical drum axis : de en
  • FR773503A - Road gravel or sweep machine and others : en fr
  • DE605789C - Internal combustion engine : de en
  • US1981709A - Circuit breaker : en
  • CA346145A - Cap assembling machine : en fr
  • US1981745A - Mining apparatus : en
  • US1981771A - Composite article and method of making the same : en
  • US1981304A - Rod or pipe clamp : en
  • US1981635A - Foam reduction : en
  • FR773550A - Improvements to electrical insulators comprising a glass body and their manufacturing processes : en fr
  • US1981255A - Motion picture projector : en
  • DE606105C - Process for obtaining firmly adhering electrolytic nickel deposits : de en
  • GB419814A - Improvements in revolving cylinder pumps : en
  • CA346181A - Liquid oxygen production : en fr
  • US1981421A - Dispensing means : en
  • US1981748A - Fruit guard : en
  • US1981797A - Fluid meter : en
  • CA346256A - Coffin : en fr
  • US1981106A - Mining machine : en
  • US1981185A - Follow focus mechanism : en
  • US1981498A - Electrolytic cell : en
  • US1981202A - Mower razor : en
  • DE606006C - Device for corrugating insert sheets for cigar wraps : de en
  • GB419997A - Sleeve spring : en
  • GB420047A - Improvements in and relating to screen grid electron tubes : en
  • FR773736A - Improvements to automatic lighters : en fr
  • DK49544C - Made that can be separated into several Pieces. : da en
  • GB419799A - Improvement in luminous discharge tube system : en
  • GB419898A - Improvements in and relating to automatic repeating guns : en
  • CA346232A - Television system : en fr
  • US1981354A - Liquid gauge : en
  • US1981806A - Drier and method for the manufacture of gelatinous substances : en
  • CA346124A - Shoe insole : en fr
  • US1981323A - Process for producing wood cellulose comparable to cotton, with high tenor of alkali resisting cellulose : en
  • US1981521A - Article of jewelry : en
  • DK49551C - Procedure for Reducing Ore and Furnace for Carrying Out the Procedure. : da en
  • CA346152A - Sound insulating floor : en fr
  • CA346207A - Heat interchanging apparatus : en fr
  • US1981009A - Ice cream freezing device : en
  • US1981414A - Metal screw cap : en
  • US1981826A - Method of heat treating oil : en
  • US1981602A - Burner assembly : en
  • DE605737C - Process for the conversion of hydrocarbons : de en
  • DE605514C - Self-closing explosion safety pot : de en
  • FR773728A - Refractive letters and signs for advertisements and other similar devices : en fr
  • DE605456C - Automatic regulator for electrical machines : de en
  • DE605883C - Device for determining the dimensions of clamped workpieces in machine tools for the production of flat surfaces : de en
  • GB419762A - Improvements relating to electromotors such as those used to drive apparatus in telephone and like systems : en
  • GB419873A - Improvements in smokers' ash trays : en
  • US1981033A - Aperture plate for motion picture projection machines : en
  • US1981083A - Wire rope and cable making machine : en
  • US1981598A - Refrigerating apparatus : en
  • CA346137A - Valve seat tool : en fr
  • FR773726A - Process for coloring rubber surfaces : en fr
  • GB419756A - Improvements in pneumatic transport systems : en
  • GB419795A - Superheterodyne radio receiver and the like : en
  • DE605646C - Glass suction blowing machine : de en
  • DE605856C - Device for treating beer and other carbonated beverages with radium emanation : de en
  • FR773747A - Gas testing method and device : en fr
  • GB419875A - Apparatus for classifying finely divided material for size : en
  • DE605808C - Clothes hanger with adjustable spreading bars : de en
  • GB419743A - Improvements in trusses : en
  • DE605825C - Shoe with uppers made of raffia and sole made of solid material : de en
  • US1981616A - Buck for ironing machines : en
  • DE605857C - Electric roasting and oven : de en
  • DE606066C - Chuck for one-sided clamping of rotating bodies : de en
  • AU1510433A - Improved means for retaining pins andthe like in position : en
  • DE605888C - Rag doll with filling similar to cotton wool and a wire frame : de en
  • FR773601A - Regulator for all fluids : en fr
  • CA346147A - Store front : en fr
  • GB419789A - Improvements in rectiflers of the mercury arc type : en
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  • US1981738A - Electrical apparatus : en
  • US1981818A - Apparatus for counter-current treatment of two immiscible liquids : en
  • FR773461A - Improvements in the case-hardening of iron or steel : en fr
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  • AU1538333A - An improved muffle furnace : en
  • US1981626A - Refining oils : en
  • US1981140A - Reel : en
  • US1981524A - Electric discharge apparatus : en
  • US1981584A - Form shaping device for woodworking machines : en
  • CA346167A - Spark plug : en fr
  • USD93868S - Design fob a towel : en
  • GB419818A - An improved device to be used in connection with striking plates for locks and latches : en
  • US1981146A - Material guiding apparatus for rolling mills : en
  • US1981254A - Mattress clamp : en
  • US1981662A - Check protecting device : en
  • US1981835A - Spaceband for justifying matrix lines : en
  • FR773716A - Door control unit : en fr
  • GB420181A - The manufacture and application of new plasticisers : en
  • FR44189E - Method and apparatus for anesthesia with automatic or semi-automatic oxygenation of the confined anesthetic atmosphere : en fr
  • GB419921A - Improvements in brake blocks for vehicle wheel brakes : en
  • GB419960A - Improved method of obtaining composite coatings of two or more metals : en
  • FR773483A - Freewheel hub : en fr
  • DE605914C - Process for the production of patterns on crepe fabrics : de en
  • US1981298A - Refrigerator display case : en
  • US1981630A - Method of heating travelling stock : en
  • US1981675A - Method of producing solid carbon dioxide : en
  • US1981702A - Glare shield : en
  • FR773499A - Apparatus for heating liquids, specially usable for making infusions of coffee, tea or other substances : en fr
  • GB419947A - Improvements in or relating to electric drives for amusement vehicles : en
  • FR773566A - Protective casing or sheath for insulating bottle : en fr
  • GB420026A - Foot-arch support : en
  • DE606101C - Air mattress or air cushion : de en
  • GB419834A - Improvements relating to friction clutches : en
  • US1981197A - Method and apparatus for drying fruit : en
  • US1981710A - Cabinet door construction : en
  • GB419893A - Improvements in the manufacture of films or foil : en
  • GB419910A - Improvements in or relating to lighters or igniters : en
  • GB419929A - Improvements in and relating to systems of irradiation : en
  • FR773695A - Flatbed knitting machine : en fr
  • FR44194E - Telephone cable that works with amplifiers : en fr
  • US1981215A - Mixer : en
  • US1981398A - Cellulose organic ester composition containing an ester of tetrahydrofurfuryl alcohol : en
  • DE605906C - Production of pigment prints using the Bromoel process : de en
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  • AU1550433A - Improved book-holder suitable for invalids and others : en
  • FR773683A - Device applicable to cathode ray tubes : en fr
  • GB577777A - Improvements in fuzes for bombs and the like : en
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  • FR773640A - Knitting machine : en fr
  • GB419977A - Improvements in steel floor sections, steps, platforms, and the like : en
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  • AU1809034A - Improvements in inking device for printing ribbons : en
  • US1981112A - Spout and closure : en
  • US1981689A - Program distributing system : en
  • GB419987A - Improvements in let-off motions for looms : en
  • US1981183A - Dowel-making machine : en
  • GB419805A - A method of obtaining mechanical work in heat engines by utilising the latent energy of chemical substances : en
  • FR773557A - Pin-clamp in transparent material or hard stone : en fr
  • GB419806A - Process and apparatus for working internal combustion engines with liquid fuel of high boiling point : en
  • DE606037C - Electric glow discharge tubes with cold main electrodes and an auxiliary body arranged between these main electrodes : de en
  • DK49534C - Device for automatic emptying of foreign bodies of coffee grinders and similar grinders. : da en
  • DE605685C - Rotary pressure filter : de en
  • DE605915C - OEfilter : de en
  • FR773688A - Method and device for automobile service : en fr
  • GB420022A - Improvements in or relating to the manufacture of bi-focal lenses : en
  • FR44197E - Telephone cable that works with amplifiers : en fr
  • US1981604A - Combination receptacle : en
  • US1981627A - Coaster : en
  • US1981773A - Safety razor : en
  • CA346074A - Automobile parking and storage machine : en fr
  • CA346212A - Horn : en fr
  • US1981431A - Casing head equipment for boreholes or wells : en
  • US1981493A - Lubricating nozzle : en
  • US1981366A - Banding machine : en
  • US1981695A - Shingle cutter : en
  • DK49545C - Device for electrically operated machines and apparatus for the avoidance of radio interference. : da en
  • DE606098C - Device for examining the stomach : de en
  • US1981713A - Increment measuring instrument : en
  • US1981666A - Bed lift : en
  • US1981736A - Storage battery separator : en
  • US1981018A - Tank : en
  • US1981437A - Method and apparatus for making color wedges : en
  • FR773490A - Device improvements to indicate the presence of chemical substances by color change : en fr
  • DE605862C - Sofa bed with underframe serving as a bed box : de en
  • AU1515433A - An improved drenching gun : en
  • DE605998C - Hollow spherical tires with concentrically arranged spherical single cells : de en
  • FR773739A - Electric heating plate : en fr
  • US1981243A - Lubricating device : en
  • US1981451A - Potato slicer : en
  • FR44170E - Improvements to remote control devices, in particular to those included in motor vehicles : en fr
  • GB420365A - Improvements in dental and like syringes : en
  • CA346249A - Metal working apparatus : en fr
  • CA346188A - Asphalt production : en fr
  • CA346151A - Acoustical wall support : en fr
  • CA346228A - Television system : en fr
  • US1981499A - Clamp : en
  • DE605919C - Equipment for heating or cooling devices : de en
  • CA346177A - Gas dispenser : en fr
  • FR44169E - liquid elevator for supplying fuel to automobile engines, etc. : en fr
  • FR773569A - Improvements in the manufacture of cylindrical tubes with thick walls and long lengths : en fr
  • US1981234A - Apparatus for cleaning fabric : en
  • GB420048A - Improvements in releasing means for parachutes : en
  • US1981809A - Reel : en
  • FR773619A - Improvements to fragile containers : en fr
  • FR773676A - Mop : en fr
  • GB419757A - Improvements in and relating to electric valve circuits : en
  • FR773651A - Process for the preparation of high-membered lactones having more than eleven carbon atoms in the lactone nucleus : en fr
  • US1981047A - Watchcase : en
  • US1981053A - Method of making stockings : en
  • US1981262A - Plunger and screen for hydraulic underreamers : en
  • US1981494A - Cabinet corner construction : en
  • FR773668A - Centrifugal-electromagnetic or hydro-electromagnetic clutch, in particular for automobiles : en fr
  • DE606047C - Method and device for testing motor vehicle brakes : de en
  • DE606058C - Roll cassette for photographic playback cameras : de en
  • US1981759A - Circulation process and device in sulphite cellulose digestion : en
  • USD93896S - Design for a bottle : en
  • DK49542C - Scraper for Variety Scrapers for Pigs. : da en
  • FR44191E - : fr
  • GB419915A - Improvements in or relating to photographic cameras with telemeters : en
  • US1981290A - Engine lubrication : en
  • US1981391A - Acid hardening fixing bath : en
  • DE606023C - Electric ignition device : de en
  • AU1704034A - Improvements in vehicles capable of running on rails and roads : en
  • FR773638A - Process and device for manufacturing yarns, cords, ribbons, films or the like, from animal fibers of elastin and / or collagen or from materials containing these fibers, and products obtained : en fr
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  • US1981037A - Fastening-inserting machine : en
  • GB419760A - Improvements in and relating to washing boxes for coal and the like : en
  • GB419980A - Improvements in electric incandescent lamps, discharge tubes, and flash-light lamps : en
  • US1981356A - Dust removal device : en
  • US1981118A - Six wheel truck : en
  • US1981621A - Collector for sheets of paper : en
  • US1981345A - Snap fastener socket : en
  • US1981841A - Fuel system for motor vehicle engines : en
  • US1981240A - Wall construction : en
  • US1981258A - Tool for grinding or lapping cylindrical bores : en
  • DE606033C - Isolator chain with electrostatic protective fittings arranged between the links of the chain : de en
  • US1981086A - Device for uniting package and bale hoops : en
  • CA346156A - Alcohol production from glycerides : en fr
  • US1981266A - Vibrating galvanometer : en
  • US1980991A - Awning construction : en
  • DE590782C - Shuttle drive on mechanical looms : de en
  • DE605816C - Injection carburetor : de en
  • US1981519A - Printing device : en
  • DE606113C - Device for drying cinematographic films u. like : de en
  • DE605807C - Soap rust : de en
  • DE605824C - Track assembly for vehicles : de en
  • FR773581A - Steamer and reservoir for keeping cooked drinks hot : en fr
  • GB419794A - An improved collapsible compartmental box for eggs and other articles : en
  • GB419764A - Method and apparatus for electrodeposition : en
  • GB420055A - Adjustable electrical condenser : en
  • US1981342A - Vacuum tube detector : en
  • US1981781A - Cork pulling device : en
  • DE605845C - Printing machine with an inking unit that can be released from its rack and pinion drives : de en
  • FR773528A - Instant stop shoe for motor vehicles : en fr
  • FR773715A - Automatic firearm : en fr
  • DE605805C - Closure for handbags, suitcases etc. like : de en
  • GB419750A - Improvements in or relating to water heaters : en
  • DE605835C - Method for television reception in monochrome pictures : de en
  • DE605842C - Regulating valve for gasoline cooker : de en
  • FR44178E - Improvements to electrical devices to produce pulses, especially at low frequencies : en fr
  • FR773545A - New Azo Coloring Materials : en fr
  • USRE19374E - Method of cleaning : en
  • GB419963A - Improvements in or relating to the filtration of liquids : en
  • FR773548A - Method and installation for detecting and extinguishing fire or other similar applications : en fr
  • DE606112C - Observation device for facilities for processing cinematographic films and. like : de en
  • FR773535A - Improvements to mine cartridges using air or other compressed gas : en fr
  • GB419976A - Improvements in machines for mixing liquids and semi-liquids : en
  • US1981195A - Device for the indication of alternating pressures : en
  • FR773560A - Compressible tube, intended to contain a pasty substance and the opening of which is crowned with a movable closure cap : en fr
  • FR773577A - Process for liquefying coal tar pitch : en fr
  • FR773711A - Cathode ray tube, especially for television : en fr
  • FR773666A - Piston : en fr
  • DE605823C - Ashtray for motor vehicles with automatic, immediate emptying : de en
  • GB419939A - Improved means for releasing or collapsing mine chocks and the like : en
  • FR773580A - Condensation products containing nitrogen, low molecular weights, soluble in low boiling point solvents : en fr
  • US1981726A - Tire chain : en
  • GB420079A - Improvements in and relating to the feeding of steam generators : en
  • CA346259A - Insertable saw tooth : en fr
  • US1981620A - Electrode for electron discharge devices : en
  • US1981834A - Thread cases for sewing machine loop-takers : en
  • GB419872A - Improvements in or relating to cathode ray tubes : en
  • FR773515A - Sock holder : en fr
  • GB420209A - Improvements in and relating to aeroplanes with folding wings : en
  • USD93903S - Design for a toastee : en
  • US1981204A - Switch for dirigible lights : en
  • US1981212A - Bed for automotive vehicles : en
  • US1981683A - Insect trap : en
  • US1981769A - Plastic composition : en
  • FR773505A - Temperature moderator for hot water distribution : en fr
  • FR773667A - Fuel mixture for supplying internal combustion engines and other applications and method of preparation thereof : en fr
  • DE605979C - Device for monitoring the slide movement in gas generation plants : de en
  • GB419859A - Improvements in or relating to garments : en
  • DE605828C - Process for the production of heat and cold insulating bodies : de en
  • IE13237L - Electric discharge tubes : en
  • GB420006A - Improvements in means for eliminating the flash, smoke, noise and recoil of guns andin ammunition therefor : en
  • GB420076A - Improvements in and relating to cases for spectacles, eye glasses and other articles : en
  • US1981264A - Ophthalmic mounting : en
  • DK49535C - Device for Washing Boilers. : da en
  • US1981275A - Projection apparatus : en
  • FR773617A - Advanced suspension for infant, doll and sick carriages, vehicle seats and other applications : en fr
  • FR773634A - Improvements in fuel fabrication : en fr
  • CA346218A - Garment pattern : en fr
  • FR773618A - Method and apparatus for potting compost : en fr
  • FR773669A - Improvements to circular looms : en fr
  • GB419772A - Air deflectors for automobiles : en
  • DE605978C - Double-walled electric light tube with glow electrodes, in which the inner vessel is resiliently supported from the outer vessel : de en
  • FR44180E - Process for the electrical purification of gases, non-conductive liquids, etc. : en fr
  • US1981225A - Process for the treatment of yeast and the product produced thereby : en
  • US1981259A - Motor control system : en
  • FR773641A - Assembly device for metal drums in several parts : en fr
  • US1981808A - Tire tread burner : en
  • US1981690A - Fixture : en
  • DE605980C - Plate air heater : de en
  • DE605991C - Device for steaming cultivated soil for gardens : de en
  • FR773476A - Process for preparing vinyl esters : en fr
  • US1981121A - Lock : en
  • US1981435A - Material handling mechanism : en
  • FR773484A - Improvements in the production of agglomerated semi-coke and similar products : en fr
  • GB419885A - Improvements in or relating to superheterodyne radio receivers : en
  • GB419984A - Improvements in and relating to motor vehicles : en
  • US1980983A - Sheet feeding apparatus : en
  • US1981135A - Cigarette vending machine : en
  • DE606014C - Winding with a large axial height for transformers for high currents : de en
  • GB419936A - Control systems for internal-combustion engines and associated starting motors : en
  • DE606064C - Bicycle support : de en
  • GB420024A - Improvements in or relating to ironing and pressing boards : en
  • FR773680A - Improvements in the preparation of shiny aluminum surfaces : en fr
  • US1981292A - Emulsifying agent : en
  • US1981634A - Process for the prevention of foam : en
  • US1981824A - Process for producing resins of petroleum origin : en
  • DE606106C - Device for checking the tooth flanks of involute wheels : de en
  • US1981742A - Electric wiring system : en
  • US1981168A - Treatment of rubber : en
  • US1981460A - Cable connecter : en
  • FR773518A - Building material and roof made from this material : en fr
  • DE605833C - Process for the recovery of low-boiling and high-boiling liquids from an already pre-distilled mixture : de en
  • DE606095C - Process for the preparation of conversion products of chromium-containing azo dyes : de en
  • US1981338A - Machine for making corrugated paper board : en
  • US1981373A - Hair waving appliance : en
  • GB420056A - Improvements in roller bearings : en
  • GB419975A - Improvements in automobile doors : en
  • FR773543A - Fluid circulation radiator and method for manufacturing it : en fr
  • US1981227A - Display device : en
  • US1981179A - Coupler : en
  • US1981289A - Doorlock for hollow metal doors : en
  • DE605973C - Process for the production of ethers from hydroxyl-containing organic compounds and ethylene oxide : de en
  • US1981100A - Foot support : en
  • US1981637A - Machine for forming hollow glassware : en
  • US1981686A - Vibration translating system : en
  • FR773494A - Extra-mild steel for cases in general and particularly for cartridges of cartridges of war : en fr
  • GB419897A - Improvements relating to door latches : en
  • FR773741A - Freight pulley with automatic stop : en fr
  • GB419964A - Improvements in apparatus for the separation of powdered or granular materials : en
  • GB419974A - Improvements in flyer bobbins : en
  • FR773725A - Device intended to change the ranges of wavelengths in devices receiving t. s. f. : en fr
  • DE605920C - Process for filling flammable, liquefied gases : de en
  • FR773675A - Shelf support model for fixing to central heating radiators : en fr
  • AU1577333A - Improvements in and relating to tobacco pipes : en
  • FR773521A - Baker's shovels : en fr
  • GB419926A - Improvements in fastenings : en
  • US1981453A - Impregnation of articles by centrifugal means : en
  • US1980994A - Sear mechanism for guns : en
  • GB419835A - Improvements in or relating to electro-magnetic apparatus : en
  • US1981050A - Flying toy : en
  • AU1524333A - Improvements in or relating to refrigerating systems : en
  • CA346175A - Machine table : en fr
  • US1981833A - Gas meter : en
  • US1981080A - Vacuum operated device : en
  • DE605869C - Fluid filters, especially for lubricating oils : de en
  • DE605981C - Pulverized fuel combustion : de en
  • GB420063A - Improvements in expansion pipe joints : en
  • US1981065A - Machine for making bushel basket blanks or mats : en
  • GB420077A - Improvements relating to pipe joints : en
  • IE13035L - Electric discharge tubes : en
  • GB419988A - Improvements in or relating to meat chopping or mincing machines : en
  • GB420018A - Improvements in electromagnetic pawl and ratchet driving mechanisms : en
  • FR773673A - label, silhouette, reversible panel always presented vertically and from the front : en fr
  • GB419923A - Lock-stitch sewing machine : en
  • GB419775A - Improvements in or relating to mechanism for correcting the feed of webs of continuous strip material : en
  • GB419780A - Improvements in progressive springing, more particularly for powerdriven vehicles : en
  • FR773604A - Process for obtaining sealants for tires and products obtained : en fr
  • FR44187E - Method and apparatus for treating artificial filamentary materials : en fr
  • US1981107A - Oil stove wick : en
  • CA346197A - Wrapping material : en fr
  • AU1622934A - An improved heavy fuel vaporizer and carburetor for internal combustion engines : en
  • DE1318318U - : de en
  • DE605841C - Lifting device for container : de en
  • FR44196E - Piston improvements : en fr
  • DE605897C - Sieve, especially for covering the overflow channel open at the top of wash basins, sinks and like : de en
  • DE605974C - Process for the preparation of substituted aromatic amino compounds : de en
  • FR773558A - Device for fixing an ornamental thread or cord by a stitching or sewing point on hats and other articles : en fr
  • GB420072A - Improvements in immersion type electric liquid-heaters : en
  • US1981536A - High tension electric cable : en
  • US1981115A - Vacuum tube : en
  • US1981792A - Sulphated condensation products of : en
  • USD93862S - Design fob a golf cl : en
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  • AU1383433A - Improvements in or relating to glue bases and glues made therefrom : en
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  • US1980998A - Vessel : en
  • US1981223A - Fertilizer distributor : en
  • US1981113A - Privacy system : en
  • US1981821A - Dual drive road machine : en
  • US1981313A - Thermostatically operated valve : en
  • US1981507A - Portable grease pump : en
  • US1981794A - Duplicating method and apparatus : en
  • US1981803A - Method of and apparatus for producing multishade mottled paper : en
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  • FR773456A - Brake improvements, in particular brakes for motor vehicles : en fr
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  • US1981103A - Mold for net leads : en
  • US1981839A - Windshield cleaner operated from the motor vehicle lubricating system : en
  • CA346196A - Lenticular film printing method : en fr
  • CA346243A - Flood lamp standard : en fr
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  • CA346193A - Lenticular film projecting apparatus : en fr
  • DE605837C - Process for forming the ends of fitted glass tubes into Haelsen or skewers : de en
  • DE605927C - Switching device for electrical switches by means of an electric motor : de en
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  • US1981279A - Means for controlling wells : en
  • AU1467733A - Improvements in or relating to electric fuses : en
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  • GB419932A - Improvements in and relating to the creel arrangements of yarn winding frames : en
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  • US1981176A - Lignin derivatives and process of making same : en
  • CA346140A - Higher aliphatic alcohol : en fr
  • US1981747A - Edge guard : en
  • US1981756A - Transformer lifting device : en
  • FR773481A - Device for copying movies : en fr
  • US1981830A - Refrigerating apparatus : en
  • US1981084A - Gas or electric cooking stove and range : en
  • US1981034A - Typewriting machine : en
  • US1981063A - Safety device for paper cutters : en
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  • US1980975A - Initial centering device and method : en
  • US1981104A - Jar opener and closer : en
  • AU1413833A - Improvements in or relating to thermionic valves : en
  • US1981229A - Electrically operated strip server : en
  • CA346131A - Tackle box : en fr
  • CA346200A - Motion picture projector device : en fr
  • US1981585A - Holder for lesson scrolls : en
  • US1981674A - Container for shaving accessories : en
  • AU1620534A - Method of and apparatus forthe electrolytic production of thin metal sheets : en
  • AU1783034A - Improvements in or relating to electric discharge tubes with positive column discharge : en
  • AU1672934A - An improved knitting machine : en
  • FR773628A - Inner pipe chuck holder : en fr
  • CA346214A - Hearing-aid device : en fr
  • GB419916A - Improvements in or relating to sewing machines : en
  • GB419955A - Improvements in or relating to luminous electric discharge tubes : en
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  • DE605836C - Method for processing hair leather : de en
  • DE605911C - Wedge block for hiking pillar : de en
  • CA346110A - Foot sole reproducing device : en fr
  • CA346231A - Electro optical system : en fr
  • CA346155A - Carboxylic acid hydrogenation : en fr
  • CA346246A - Oscillatory circuit : en fr
  • US1981283A - Door bumper : en
  • US1981479A - Oil burner control : en
  • FR773457A - Motor-driven apparatus for the so-called "tooth plane" operation on planed boards intended for plating : en fr
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  • US1981326A - Forging tapered articles : en
  • US1981466A - Plywood container : en
  • DE605900C - Fuse for electrical capacitors, especially for wound capacitors : de en
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  • US1981044A - Process of manufacturing arsenate of zinc and the product : en
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  • US1981295A - Anthraquinone derivative : en
  • US1981157A - Truss : en
  • US1981595A - Apparatus for conditioning air : en
  • US1981446A - Combined seltzer water and sirups dispensing bottle device : en
  • USD93875S - Design for a pedestal mirror : en
  • GB419948A - Construction of reciprocating engines : en
  • GB419968A - Improvements in fastenings with keep plates : en
  • GB419993A - An improved yarn reel with adjustable sweeps : en
  • US1981566A - Machine for coiling metal strip : en
  • US1981670A - Safety device for motion picture projectors : en
  • US1981558A - Moth bag : en
  • CA346141A - Higher aliphatic alcohol : en fr
  • US1981413A - Grain spout : en
  • US1981516A - Intermediates for secondary alkyl : en
  • US1981644A - Belt : en
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  • US1981523A - Method of exhaust and apparatus therefor : en
  • US1981807A - Friction clutch : en
  • US1981309A - Electric iron and switch therefor : en
  • FR44163E - Improvements to mechanical separation devices for dust in gas : en fr
  • FR773482A - Improvements to control devices for the opening and closing of extendable mandrels in wire wrapping machines : en fr
  • FR44156E - Improvements to Incandescent Lamps of Optical Devices : en fr
  • US1981174A - Tool grinder : en
  • USD93871S - Design for a drinking glass : en
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  • GB420029A - An improved carburettor : en
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  • US1981588A - Transparent film or layer : en
  • US1981760A - Slip : en
  • US1981218A - Control valve for heating systems : en
  • US1981307A - Filter cartridge : en
  • DE606063C - Anti-skid device for vehicle wheels : de en
  • FR773574A - Process for increasing the bulk of cigar guts : en fr
  • GB419918A - Manufacture of new staple fibre : en
  • FR773621A - New articulated mannequin : en fr
  • FR773627A - Tool for adjusting automobile brakes : en fr
  • DE605819C - Film pack housing with slip-on lid : de en
  • FR773497A - Metal steam rectifier : en fr
  • FR773576A - Process for decarburizing gases, and apparatus for carrying it out : en fr
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  • US1981390A - Manufacture of stranded electric multicore cables : en
  • US1981651A - Surgical needle and suture : en
  • US1981685A - Wire connecter : en
  • US1981687A - Gyroscopic base line : en
  • US1981489A - Reenforced pavement : en
  • US1981837A - Needle-stripper foot for sewing machines : en
  • DE606007C - Pack of cigarette papers : de en
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  • FR773599A - Tire improvements : en fr
  • GB419983A - Perforated cards for use in connection with statistical machines : en
  • US1981661A - Building construction : en
  • DE605925C - Device for keeping the auxiliary mains voltage constant on diesel-electric vehicles : de en
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  • US1981836A - Cardboard box : en
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  • GB419830A - Improvements in or relating to printing machines : en
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  • US1981364A - Lubricating device : en
  • US1981531A - Beater : en
  • CA346097A - Digester apparatus : en fr
  • CA346220A - Railway car uncoupling mechanism : en fr
  • US1981132A - Composition for noninflammable cellulosic film : en
  • US1981640A - Cemetery vase : en
  • CA346096A - Time-piece : en fr
  • DE605599C - Electrically heated syringe for fluids under pressure, especially for dental purposes : de en
  • US1981404A - Electrical circuit breaker : en
  • USD93884S - Design for a service station : en
  • US1981246A - Extension drawer slide : en
  • US1981613A - Vehicle wheel side thrust indicator : en
  • GB419786A - Improvements in pistons : en
  • GB419914A - Improvements relating to thermionic amplifiers : en
  • FR773531A - Positive pulse arc rectifier control device : en fr
  • FR773721A - Improved process for coating an iron article with zinc and product obtained : en fr
  • FR773748A - Movable staircase : en fr
  • DE606070C - Vehicle wheel with fixed wheel axle : de en
  • DE605965C - Operationally connected to the vacuum pump, ion-oxygen tubes with two main electrodes and an auxiliary electrode connected to earth : de en
  • DE606015C - Shortened umbrella : de en
  • FR773555A - Device and method for mechanically inscribing a vibratory trace, in particular a phonogram, on a medium : en fr
  • GB420363A - Improvements in engine starter drives : en
  • DE605899C - Device for circulating air cooling of turbo generators : de en
  • DE606040C - Process for the production of a graphite lubricating paste : de en
  • DE605863C - Junction connection of rods or pipes by means of pipe clamps : de en
  • DE605854C - Drive of shafts enclosed in high pressure vessels by means of magnets fastened in the vessel wall : de en
  • US1981514A - Process for the production of press-molding masses by condensation of phenols with formaldehyde or substances that yield formaldehyde : en
  • US1981056A - Method of neutralizing disturbing electric waves : en
  • FR773652A - Improvements to propeller coffee makers : en fr
  • DE605996C - Sound recording medium printed using the letterpress or gravure printing process : de en
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  • US1980997A - Air compressing apparatus : en
  • US1981743A - Tray for refrigerators : en
  • US1981130A - Method of and apparatus for coating strands : en
  • DE606069C - Device for controlling prime movers with speed and power controllers : de en
  • DE606074C - Transformer for systems with high output potential : de en
  • US1981315A - Run stop construction for stockings : en
  • CA346136A - Heat exchange plant : en fr
  • US1981302A - Signal light for automotive vehicles : en
  • US1981546A - Slub yarn producing attachment for spinning frames : en
  • CA346165A - Hydroxyalkylamine : en fr
  • AU1759934A - Improvements in or relating to electric welding : en
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  • FR773516A - Improvements to the steering mechanisms of motor vehicles : en fr
  • AU1536233A - Improvements in or relating to. the production of starchy or glutenous materials : en
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  • US1981181A - Auxiliary-engine for steam-driven locomotives : en
  • CA346180A - Liquid gas purifying apparatus : en fr
  • US1981098A - Lawn mower attachment : en
  • US1981605A - Refining of cotton seed oil : en
  • US1981105A - Elastic knife-edge bearing for measuring appliances : en
  • US1981477A - Method and apparatus for gas-lift control : en
  • CA346208A - Electrical precipitation apparatus : en fr
  • DE606020C - Apron conveyor : de en
  • CA346103A - Sleeve valve engine : en fr
  • US1981161A - Preparation of carbon disulphide and hydrogen sulphide : en
  • US1981572A - Method of heat treating hydrocarbon oil : en
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  • US1981171A - Coffee making apparatus and method : en
  • US1981462A - Ball agitating device for pinball games : en
  • AU1733734A - Improvements in or connected with electrical apparatus for heating air : en
  • CA346132A - Echo-sounding altimeter : en fr
  • CA346104A - Cooking and heating system : en fr
  • CA346223A - Electric furnace : en fr
  • DE605934C - Device for hanging up a ceiling light fitting using a normal junction box : de en
  • DE606056C - Device for the production of corrugated cardboard from several webs whose waves cross each other : de en
  • DE605963C - Device for keeping a temperature, a voltage or some other variable constant : de en
  • US1981111A - Method of and machine for applying caps to the openings of receptacles such as bottles : en
  • US1981389A - Soap holder : en
  • US1981017A - Stool : en
  • US1981324A - Interlocking partition block : en
  • US1981828A - Method and apparatus for building tires : en
  • FR773670A - Protective container for metal sheets or other heat-treated metal objects : en fr
  • GB420037A - Improvements in or relating to methods of producing ingots and apparatus therefor : en
  • GB420156A - Improvements in or relating to vaporizers for internal combustion engines : en
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  • DE605809C - Iron room stove : de en
  • DE606028C - Device for removing crusts in heat exchange apparatus and pipelines by means of elastic changes in shape : de en
  • GB420158A - Improvements in and relating to the delivery of cigarettes and the like : en
  • US1981601A - Elevator control system : en
  • US1981641A - Bottle handling apparatus : en
  • FR773452A - Improvements to electrical maneuvering devices : en fr
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  • GB420366A - Improvements in or relating to sights for ordnance : en
  • US1981436A - Method and apparatus for the storage, curing, and preservation of hay : en
  • USD93881S - Design for a bottle or similar : en
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  • DE605922C - Single chamber air brake with two control valves : de en
  • DE605924C - Point machine : de en
  • US1981010A - Ice cream freezing tray : en
  • US1981123A - Composition of matter and process of preparing the same : en
  • US1981094A - Process for the production of barium sulphate : en
  • US1981739A - Improved device for the projection of moving advertising matter, announcements, and the like : en
  • US1981141A - Cementing foil and thin film : en
  • US1981260A - Turning machine : en
  • DE605859C - Process for the production of titanium compounds and titanium pigments : de en
  • FR773724A - Internal combustion engine flanged to the controlled machine : en fr
  • GB420224A - Improvements in or relating to dentists' appliances : en
  • US1981638A - Magneto ignition apparatus : en
  • US1981724A - Adjustable display structure : en
  • CA346261A - Sift proof bag : en fr
  • US1981145A - Process of producing phosphoric acid : en
  • DE606093C - Electric multi-filament lamp for vehicle headlights : de en
  • AU1551933A - Method of and machine for centrifugal concentration of minerals : en
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  • DE605879C - Pinch roller overrunning clutch for motor vehicles with an additional claw clutch : de en
  • US1981560A - Method and apparatus for cooling glass : en
  • US1981777A - Pipe coupling : en
  • USPP112P - Strawberry : en
  • GB419840A - Method of preparing cement or coating material : en
  • US1981529A - Stabilized range finder : en
  • CA346078A - Electric humidifier : en fr
  • GB419842A - Improvements for converting oscillating motion into rotary motion : en
  • USRE19376E - Stripper finger fob flatwork : en
  • GB419945A - Dyestuff intermediates : en
  • FR773608A - Device for pinching, stretching and driving one or more metal wires, applicable to any machines and tools and in particular to drilles for twisting the wires : en fr
  • GB419836A - Improvements in the recording of electric picture currents : en
  • US1981198A - Lever press : en
  • US1981842A - Process for cracking heavy stocks : en
  • CA346227A - Television system : en fr
  • DE605829C - Chamber furnace with a horizontal train for steaming roof tiles : de en
  • GB420049A - Improvements relating to cathode ray oscillographs : en
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  • CA346210A - Hair clipper : en fr
  • US1981482A - Clothesline hanger : en
  • US1981711A - Paper sack : en
  • FR773532A - Method of recording and reproducing electrical pulses : en fr
  • GB419904A - Improvements in or relating to means for converting solid carbon dioxide into its gaseous condition : en
  • US1981639A - Dual wheel : en
  • US1981812A - Carboy container : en
  • DE606012C - Process for the preparation of citrate-soluble calcium alkali metal phosphates : de en
  • GB419753A - Improvements relating to non-slipping or resilient horse shoe pads : en
  • GB420364A - Improvements in or relating to cooking and water heating apparatus : en
  • US1981484A - Fluid temperature limiting electric cut-out device : en
  • US1981733A - Lens grinding machine : en
  • DE605913C - Process for removing stains with water-insoluble azo dyes : de en
  • US1981274A - Vehicle signal indicator : en
  • US1981184A - Treatment of latex : en
  • US1981556A - Collapsible winder shaft : en
  • US1981741A - Manufacture of chenille : en
  • FR44167E - Circuit breaker : en fr
  • GB419744A - Material, and bodies formed therefrom, for the polishing, smoothing and grinding of very hard objects, particularly hard alloys : en
  • DE605912C - Method for the fine ventilation of diaphragm Gaerbottichen : de en
  • FR773562A - Method of storing and transporting sensitive emulsions for the intermediate film television process : en fr
  • FR773661A - Sound reproducing device for cinematographic projectors : en fr
  • GB419998A - Improvements in two-speed pedal-crank driving-mechanism for cycles : en
  • GB420057A - Improvements in or relating to pipe couplings : en
  • FR773620A - Cleaning process for facades of buildings, walls, statues and monuments : en fr
  • GB419954A - Process for the manufacture of 1.4-diamino-anthraquinone-2.3.x-trisulphonic acids : en
  • FR773556A - Assembly of an electric discharge tube in a gas atmosphere : en fr
  • US1981650A - Odokizing lamp : en
  • GB419996A - Improvements in and relating to electrical control systems for rolling mills : en
  • GB419991A - Improvements in and relating to direct current motor drives : en
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  • DE605876C - Gear pump for rayon spinning machines : de en
  • FR773682A - Improvements in the manufacture of sponge rubber and the like : en fr
  • GB419920A - Improved pressure-reducing valve for breathing devices used for high altitudes : en
  • FR773746A - Straw press : en fr
  • FR773663A - Anti-knock fuel for engines : en fr
  • GB419958A - Improvements in and relating to methods of and machines for the automatic productionof paper tubes or containers : en
  • US1981081A - Sifting apparatus : en
  • FR773750A - Indirect acting regulator with pulse transmitter, relay and servo motor : en fr
  • GB419778A - Improvements in or relating to pianofortes and like mechanically operated string instruments : en
  • GB419861A - Device for protecting cycles and motor vehicles of all kinds against theft : en
  • GB420081A - Improvements in the construction of walls for buildings : en
  • GB420058A - Thread guiding disc on the spool holder for double twist twisting spindles : en
  • DK49560C - Releasable Fastening device for removable, with Lumbar legs provided with bracing device. : da en
  • DE606002C - Footwear gluing press : de en
  • US1981249A - Detergent unit : en
  • US1981843A - Movable roof for vehicles : en
  • DK49555C - Apparatus for cinematographic recording and reproduction, television and the like in natural colors. : da en
  • US1981418A - Building : en
  • US1981593A - Multiwheel road vehicle : en
  • US1981182A - Marine fender : en
  • US1981196A - Wheel : en
  • US1981361A - Crossing structure : en
  • AU1672034A - Change of direction indicator for motor vehicles : en
  • DE606009C - Process for the production of conversion products of the polysaccharides : de en
  • AU1538833A - Improvements in or relating tothe manufacture of separable fasteners : en
  • CA346094A - Milk cooling apparatus : en fr
  • US1981580A - Permanent mold : en
  • US1981645A - Dry cleaning apparatus and method of utilizing filter aid in connection therewith : en
  • GB419739A - An improved method of mounting doors on the bodies of motor and other vehicles : en
  • GB420019A - Process and apparatus for the electric transmission of signals by high frequency waves : en
  • CA10516S - Combined electric cooker and refrigerator : en
  • CA346130A - Animal skin shearing device : en fr
  • GB419952A - Improvements in the treatment of natural resins and gums : en
  • US1981434A - Apparatus for storage and ventilation of hay : en
  • US1981594A - Method of making nuts : en
  • USD93864S - Design for a sugar bowl cap : en
  • AU1509733A - Improvements in means for removing and/or collecting blood or saliva during operations : en
  • DE606054C - Sewing machine for the production of Bueschelwerk : de en
  • GB419966A - Improvements in or relating to electric cut-outs : en
  • GB420021A - Improvements in or relating to filtering apparatus : en
  • FR773738A - Transformer applicable, in particular, to small x-ray devices : en fr
  • DE605964C - Procedure to prevent exceeding the commencement of work in agreed periods of time in the case of electrical meters with automatic switchgear : de en
  • DK49548C - PROCEDURE FOR MANUFACTURING HEAT INSULATION RESISTANT TO MOISTURE AND ACID. : da en
  • US1981381A - Means for assuring the safe working of automatic pressure die-casting apparatus : en
  • DE605917C - Process for the preparation of curable resinous condensation products : de en
  • US1981829A - Moving picture projector : en
  • US1981014A - Beer cooler : en
  • FR773642A - Universal grapples or crampons for climbing on posts : en fr
  • CA346222A - Resinate copperized paper : en fr
  • US1981542A - Beater washer : en
  • US1981378A - Furnace : en
  • US1981539A - Radiator shield and bracket : en
  • US1981766A - Burner for liquid fuel especially for cutting and welding under water : en
  • US1981717A - Insulator : en
  • US1981029A - Artificial fish lure : en
  • US1981684A - Bottle handling mechanism : en
  • CA346107A - Tailor's folding rule : en fr
  • CA346251A - Hydrocarbon oil conversion : en fr
  • DK49552C - Pump with rotating Auxiliary fluid. : da en
  • FR773537A - Improvements in articulated support elements : en fr
  • US1981349A - Gas burner : en
  • DE606039C - Process for the production of azo dyes : de en
  • CA346139A - Can end feed mechanism : en fr
  • US1981000A - Non-self-starting synchronous electric motor : en
  • US1980996A - Process for the preparation of calcium lactobionate : en
  • USD93863S - Design for an automotive vehicle : en
  • DE605422C - Safety device for hunting rifles that can be coupled with the locking bolt actuation : de en
  • US1981688A - Electric brush for teeth and the like : en
  • US1980985A - Well pump : en
  • FR773674A - Straw chopper : en fr
  • GB420005A - Improvements in or relating to cow-milking systems : en
  • CA346092A - Crushing machine : en fr
  • US1981467A - Vending machine : en
  • US1981337A - Sodium diphenyl-para-sulphonate and method of making same : en
  • US1981102A - Photographic material and process of making the same : en
  • US1981119A - Buttonhole sewing machine : en
  • US1981383A - Antiseptic toothbrush container : en
  • US1981646A - Means for teaching mathematics and exhibiting mathematical problems : en
  • US1981744A - Cleaning device : en
  • FR773706A - Suspender enhancements : en fr
  • US1981415A - Pulverizing and granulating mill : en
  • US1981831A - Fluid meter : en
  • US1981704A - Spray device : en
  • USD93869S - Design for a buckle : en
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  • US1981660A - Collet chuck : en
  • GB419844A - Improvements in the manufacture of ammonium sulphate : en
  • US1981175A - Automatic phonograph mechanism : en
  • GB419894A - Improvements in or relating to colour kinematography : en
  • US1981440A - Envelope or container : en
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  • US1981059A - Method of cutting tubes into lengths and apparatus therefor : en
  • US1981506A - Froth production and frothproducing reagent : en
  • US1981360A - Production of aralkylaryl carboxylic acids : en
  • FR773730A - Improvements to freewheel drive mechanisms : en fr
  • FR44152E - Device for controlling electric discharge devices by means of a single direct current source : en fr
  • FR773692A - Improvements to processes for improving the fire-retardant, heat-insulating and other properties of products based on asbestos or other magnesian silicates used, in particular, for protection against fire : en fr
  • DE605803C - Capsule for means to combat putrefactive processes in the large intestine : de en
  • FR773625A - Improvements to balanced pressure inflation devices for automotive tires : en fr
  • US1981024A - Antenna system : en
  • US1981387A - Foldable chair : en
  • US1981480A - Reclaiming or distilling apparatus : en
  • US1981497A - Dust remover for scrap bunch cigar machines : en
  • US1981596A - Clamping mechanism for permanent molds : en
  • USPP113P - Raspberry variety : en
  • DE605851C - Arrangement for the slow changeover of the voltage-sensitive organ of a voltage regulator for three-phase machines to a new voltage value to be kept constant : de en
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  • FR773713A - Hay mower can be used as a tedder and as a side deposit rake : en fr
  • US1981032A - Perfume sample : en
  • US1981251A - Thermostat for aquariums : en
  • GB419905A - Improvements in or relating to power transmission mechanism : en
  • GB420008A - Improvements in processes and apparatus for hardening rails : en
  • US1980976A - Side windshield : en
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  • FR44198E - Heel for shoes and shoes and its manufacturing process : en fr
  • DE605972C - Oven firing : de en
  • US1981557A - Method of treating wheat : en
  • DK49543C - Device for Scrapers for Black Scrapers for Pigs. : da en
  • GB420228A - Improvements in or relating to apparatus for ozonizing and sterilizing : en
  • US1981220A - Art of grinding : en
  • US1981563A - Spooling apparatus : en
  • DE606000C - Device for sharpening straight knives : de en
  • FR773630A - Apparatus for measuring the power of a punch or similar applications : en fr
  • GB419769A - Improvements in and relating to systems of electric motor control : en
  • GB420012A - Improvements in or relating to gas-fired tubular boilers, water heaters, air heatersand the like : en
  • FR44174E - Universal hub for all mechanical movements carrying and carried on all cone or straight axes, fixed or rolling : en fr
  • US1981043A - Composition of matter for making a building unit : en
  • DE605800C - Device for automatic telephones for the immediate visualization of the dialed number : de en
  • GB419736A - Manufacture of azo dyestuffs : en
  • FR773693A - Improvements to the processes for manufacturing knot-stitch carpets on looms for knotted carpets : en fr
  • FR773700A - Box for powdery products : en fr
  • GB419967A - Improvements in apparatus for scrubbing gas : en
  • DE605640C - Process for the thermal conversion of saturated or unsaturated hydrocarbons, primarily methane or methane-containing mixtures : de en
  • DE606022C - Device for connecting trousers with trousers and underpants : de en
  • GB419881A - Improvements in electrical plug and socket connections : en
  • FR773714A - Homokinetic transmission joint with rollers or balls : en fr
  • GB420015A - Improvements in or relating to optical viewing instruments : en
  • DE606080C - Washing machine drive by water motor : de en
  • DE605846C - Printer for tickets etc. like : de en
  • FR773672A - Vineyard bisoc plow : en fr
  • FR773734A - Sophisticated device allowing simultaneous creation of several duplicates of the same hand-drawn original : en fr
  • GB420061A - Improvements in fire extinguishers : en
  • FR773612A - Axle for horse-drawn vehicles : en fr
  • US1981311A - Production of organic nitro compounds : en
  • US1980981A - Method and apparatus for constructing multiple scale representations of objects : en
  • US1981574A - Lettering device for display panels : en
  • US1981008A - Ice cream freezing tray : en
  • US1981653A - Hydraulic braking apparatus : en
  • DE605867C - Note : de en
  • DE605966C - Process for the production of wool dyes of the anthraquinone series : de en
  • US1981652A - Method of coating electrodes : en
  • US1981682A - Machine tool : en
  • USD93901S - Design for a food warmer or article : en
  • DE606081C - Method for sizing rayon : de en
  • GB420160A - Improvements in armed turret carrying sundry materials and adapted to be lowered from an aircraft by means of a parachute : en
  • US1981327A - Sill brick : en
  • US1981649A - Telephone substation apparatus : en
  • GB420045A - Casing elevator construction for deep wells : en
  • FR773657A - Manufacturing process of textile yarns and production of fabrics using these yarns : en fr
  • IE13494L - Chassis frame for motor vehicle : en
  • GB419828A - Improvements in or relating to sheet feed devices : en
  • FR773469A - Improved machine for cleaning pig, sheep or other intestines : en fr
  • FR773493A - Metal door and its construction system : en fr
  • GB419808A - Improvements in and relating to the speed regulation of alternating current motors : en
  • DE1319424U - : de
  • US1981332A - Film splicer : en
  • US1981250A - Fuel pump : en
  • US1981097A - Refrigerating unit : en
  • US1981247A - Telescopic elbow-fittings for interconnecting flush-tanks and toiletbowls : en
  • US1981525A - Method of and apparatus for drilling oil wells : en
  • DE605989C - Residential building cell : de en
  • DE605932C - Overcurrent or zero voltage release : de en
  • FR773524A - Variable radius crank : en fr
  • FR773526A - Special rim for automobiles : en fr
  • DE605849C - Axle guide for bogies : de en
  • FR773487A - Method and device for starting free piston machines : en fr
  • US1981669A - Electric discharge device : en
  • DE605952C - Damping device for an automatically acting control device of an auxiliary power clutch : de en
  • DE605884C - Additional lock for bolt locks and bar locks : de en
  • FR773639A - Improvements in methods of treating elastic threads with a view to facilitating their incorporation by weaving, knitting or the like into elastic fabrics and the resulting product : en fr
  • DE605877C - Device for assembling aircraft parts consisting of tubular components, gusset plates and stiffening parts : de en
  • GB419913A - Improvements in and relating to heating and cooling systems for circulating liquids in engines and compressors : en
  • DK49533C - Electric Bulb, Discharge Tube or Flashlight. : da en
  • GB420514A - Improvements in processes for treating steel, alloy steel, copper or brass before cold working : en
  • US1981721A - Device for measuring temperatures of hot fluids : en
  • FR773523A - New manufacturing process for aluminous cements from lime sulphate with recovery of sulfuric acid : en fr
  • GB419895A - Improvements in or relating to apparatus for suspending torpedoes and the like from aircraft : en
  • FR44186E - : fr
  • FR773479A - Device for mounting duplicating papers for mime copying : en fr
  • GB420518A - Textile assistants : en
  • DE606091C - Bimetal thermostat for electrical switching devices : de en
  • FR773510A - Process for manufacturing hollow articles without rubber seals, for example playing balls : en fr
  • DE606118C - Propeller jet guide surfaces with a thinner-like effect : de en
  • US1981832A - Gas meter : en
  • US1981478A - Pile wire inserting means for looms : en
  • GB419951A - Improvements in or relating to shoe part stiffeners : en
  • GB419851A - Improvements in furnace grates : en
  • GB420010A - Improvements in or relating to electric switchgear : en
  • GB420027A - Improvements in or relating to roasting or like cooking apparatus : en
  • FR773539A - Diffuser for perfumes, disinfectants, insecticidal liquids, etc. : en fr
  • FR773575A - Method of dynamic balancing of rotating machines : en fr
  • DE605812C - Process for the production of porous or microporous objects from hard vulcanized rubber or the like in a mixture with fibrous materials : de en
  • US1981268A - Clothes drying rack : en
  • DE606088C - Method for isolating parts of a power network overlaid with control currents of non-network frequency : de en
  • GB419892A - Improvements in and relating to electrically heated apparatus : en
  • US1981707A - Thermostatic control system : en
  • DE606079C - Process for the production of colored photographic cinema images : de en
  • FR773471A - Multistage compressor with free pistons and opposite moving masses : en fr
  • FR773595A - Improvements to gear changes : en fr
  • AU1511833A - Method and apparatus for centrifugally casting pipe : en
  • US1981513A - Knitting mechanism : en
  • US1981813A - Pivot back button : en
  • CA346265A - Branch anchor : en fr
  • US1981388A - Twine-dispensing device : en
  • US1981365A - Air valve for radiators and the like : en
  • US1981791A - Protective equipment for banks, etc. : en
  • CA346115A - Powder puff : en fr
  • CA346161A - Circuit breaker : en fr
  • DE606114C - Device for blocking and releasing a freewheel mechanism built into a motor vehicle : de en
  • FR44176E - High-voltage current-producing device for lighting luminescent tubes and other applications requiring these currents : en fr
  • US1981346A - Fractionating tower : en
  • US1981222A - Guano distributor : en
  • US1981189A - Spring cover apparatus : en
  • US1981341A - Circumferential pipe cutting or welding machine : en
  • US1981658A - Oven : en
  • AU1795124A - A safety gas control for water heaters : en
  • US1981402A - Water heating and infusion apparatus : en
  • AU1808934A - Improvements in frictional movement transmitting mechanism for straight knitting machines : en
  • US1981232A - Plastics : en
  • DK49539C - Cardboard packaging for incandescent lamps and similar articles. : da en
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  • FR773835A - : fr
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  • FR773478A - Improvements to cans : en fr
  • FR773687A - Process for treating lubricating materials to obtain low-colored lubricating oils : en fr
  • DE606061C - Method of making a self-retracting roll of film tape : de en
  • DE605843C - Braided wheel with exchangeable drill bit for use in machines for the production of wire mesh with hexagonal mesh : de en
  • DK49547C - Procedure for Operation of Water Treatment Plants. : da en
  • US1981058A - Thermionic valve : en
  • DE605976C - Device for regulating the throughput speed of ferromagnetic annealed goods by means of openers : de en
  • GB420059A - Improvements in or connected with parachute equipment : en
  • CA346176A - Gas purification : en fr
  • US1981392A - Propeller and the like : en
  • US1981677A - Shoe : en
  • US1981589A - Pointer type course indicator : en
  • US1981020A - Water closet bowl : en
  • AU1573133A - Improvements in electric arc welding apparatus : en
  • US1981752A - Window : en
  • US1981042A - Circuit breaker : en
  • US1981213A - Electric switch : en
  • US1981317A - Coaster toy : en
  • US1981369A - Jewelry ornamentation : en
  • USD93899S - Design fob a coffee urn or article : en
  • US1981461A - Flying equipment : en
  • US1981782A - Composite gear and method of making the same : en
  • DE605664C - Airplane with wings of changeable size : de en
  • FR773605A - : fr
  • FR773602A - : fr
  • GB419839A - Integrally united composite bodies : en
  • CA346154A - Catalytic process : en fr
  • FR44173E - Removable wheel : en fr
  • GB419758A - Improvements relating to junction, inspection, and other like boxes for electricity distributing systems : en
  • GB419771A - Improvements in or relating to the charging of vertical retorts : en
  • DE606017C - Device for the joint-free welding of smooth pipes of large diameter and large diameter and large wall thickness : de en
  • US1981144A - Process for the conversion of hydrocarbon oils : en
  • US1981231A - Registering stop device : en
  • USD93893S - Design for a receptacle for napkins : en
  • FR44184E - Method and apparatus for the manufacture of footwear : en fr
  • CA346159A - Hydrogenation process : en fr
  • FR773554A - Process for the production of phosphate-based protective layers on iron or steel : en fr
  • GB419801A - Masses for protective and insulating purposes or the like : en
  • US1981696A - Ornamental decoration : en
  • DE605918C - Copy device for coordinating and summarizing the transfers in journal sheets with several adjacent columns : de en
  • GB419900A - Improvements in and relating to the manufacture of flexible bands, threads and foilsof polystyrol or like artificial substances : en
  • US1981280A - Book cover : en
  • GB420023A - Improvements in and relating to detachable dental bridges : en
  • CA346238A - Television system : en fr
  • CA346258A - Filter and pad : en fr
  • AU1511733A - Refrigerating apparatus : en
  • US1981570A - Dust collector for drills : en
  • US1981801A - Process for the production of carboxylic acids : en
  • US1981186A - Cooky molding machine : en
  • USRE19377E - Befdong apparatus : en
  • US1981526A - Ratchet wrench : en
  • USD93876S - Design fob a hand mirror : en
  • DE605811C - Method of drying long seamless regenerated cellulose tubes : de en
  • DK49556C - Procedure for the manufacture of packing plates with inserts of metal wire mesh. : da en
  • CA346143A - Tobacco stemming machine : en fr
  • US1981737A - Bicycle : en
  • US1981151A - Actuating mechanism for dough dividers : en
  • US1981400A - Mechanical interlock for servo motors : en
  • US1981568A - Tank : en
  • US1981406A - Paper feed for automatic projection printers : en
  • USD93866S - Design for a display form or : en
  • US1981040A - Regulating system : en
  • US1981153A - Measuring apparatus : en
  • US1981206A - Highway path indicator : en
  • DE606032C - Circuit arrangement for the amplification of currents triggered by photocells : de en
  • US1981430A - Control mechanism for fishing reels : en
  • DE605817C - Detachable, radially resilient disc : de en
  • US1981244A - Glassware forming machine : en
  • US1981377A - Braiding machine : en
  • DE606034C - Contactor control for electric motors with time watchmen : de en
  • DK49536C - Dynamo, especially for Bicycles. : da en
  • FR773664A - Apparatus for drying continuous webs or sheets of all kinds in motion : en fr
  • US1981426A - Liquid hardener solutions : en
  • US1981676A - Apparatus for the production of solid carbon dioxide : en
  • US1981810A - Molded object : en
  • AU1673934A - Improvements relating to borehole pump equipments : en
  • DE605518C - Registration device : de en
  • DE605853C - Fastening of the stator core in a box-like housing of electrical machines : de en
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  • DE606073C - Method for eliminating crosstalk in telephone lines with continuous traffic : de en
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  • US1981316A - Seat end standard : en
  • US1981045A - Method and apparatus for the extrusion of lead and other metals : en
  • US1981656A - Back-up tool : en
  • US1981751A - Gauge : en
  • US1981355A - Sash construction : en
  • DE605926C - Switching arrangement consisting of fuse and disconnector : de en
  • FR773623A - Process for preparing dichloroacetic acid : en fr
  • US1981779A - Glove : en
  • GB420002A - Method and apparatus for making boxes : en
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  • DE605852C - Quotient relay for the protection of electrical lines : de en
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  • GB419973A - An insulating layer for building structures above and below ground level and method of producing same : en
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  • FR773541A - One-wheel hub cover attachment device : en fr
  • GB419953A - Manufacture of nickel iron alloys : en
  • CA346253A - Surface ornamenting process : en fr
  • US1981379A - Exercising appliance : en
  • US1981597A - Feathering propeller : en
  • US1981411A - Annealing and pickling plant : en
  • US1981409A - Method of husking cereals : en
  • US1981066A - High frequency coupling apparatus : en
  • GB420014A - Improvements relating to turret and other large time pieces : en
  • US1981816A - Adapter for electric lamp sockets : en
  • CA346108A - Neckwear : en fr
  • CA346266A - Lighting and amusement device : en fr
  • US1981555A - Electric control device : en
  • AU1658724A - Improvements in excavator buckets : en
  • CA346257A - Alcohol separation : en fr
  • DE605977C - Arrangement of electrical contactors and circuit breakers : de en
  • FR773468A - Machine for piling fodder in fields : en fr
  • GB419940A - Improvements relating to the construction of hats : en
  • US1981328A - Illuminating device : en
  • US1981376A - Record strip feeding means : en
  • US1981547A - Motor control system : en
  • US1981459A - Portable check writer and protector : en
  • CA346182A - Binding arrangement : en fr
  • CA346187A - Electric arc apparatus : en fr
  • US1981242A - Dyestuff mixture : en
  • US1981659A - Stave or bottom for barrels and vats, etc. : en
  • CA346270A - Lead-bismuth alloy refining method : en fr
  • GB419847A - Improvements relating to electric heaters, particularly immersion heaters for liquids : en
  • DE605669C - Automatic engagement device for the brakes of motor vehicles connected to the bumpers : de en
  • GB419970A - Improvements in or relating to thermionic valve circuit arrangements : en
  • US1981619A - Pump : en
  • USD93882S - Design for a pressure cooker : en
  • US1981023A - Brake head : en
  • US1981573A - Pulp forming process : en
  • US1981714A - Dump car : en
  • USD93877S - Design for a pedestal mirror : en
  • US1981155A - Toilet seat cover forming machine : en
  • US1981628A - Vulcanizing press : en
  • US1981629A - Method and apparatus for inductive heating : en
  • CA346099A - Fluid brake control : en fr
  • CA346239A - Television recording system : en fr
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  • FR44195E - Improvements in the manufacture of artificial filaments, yarns or threads : en fr
  • US1981090A - Method of and machine for applying metal spring covers : en
  • AU1514333A - Methodi of andi means for recovery off gdid content from the residues which follow usual treatmentt off aurifferous materials : en
  • US1981089A - Apparatus for reconditioning used oils : en
  • US1981680A - Hoisting table : en
  • US1981235A - Burning of cement, etc. : en
  • US1981603A - Automatic roaster apparatus : en
  • US1981533A - Electric condenser : en
  • US1981396A - Preparation of cellulose nitroacetate with nitro-cellulose : en
  • US1981553A - Necktie hanger : en
  • US1981177A - Canned oil servicer : en
  • FR773522A - Turbo-machine, intended particularly for conveying waste water : en fr
  • GB419826A - Improvements in the manufacture and production of films, threads and the like : en
  • DE605818C - Group shift for four-speed transmission : de en
  • FR773629A - : fr
  • US1981343A - Ground fittings : en
  • US1981012A - Control device : en
  • GB419933A - Fuel containers for pyrophoric lighters : en
  • DE605955C - Milk can opener and pourer : de en
  • DK49538C - Seaworthy, fast-moving ship. : da en
  • US1981433A - Method for storing and dispensing feed : en
  • US1981802A - Lubricating apparatus : en
  • AU1629734A - Improved means for automatically opening gates andthe like : en
  • US1981465A - Band moistener : en
  • CA346098A - Intermittent grip device : en fr
  • US1981718A - Process for the hardening or tempering of copper : en
  • FR773696A - Process for separating copper and silver alloys : en fr
  • GB419765A - Improvements in and relating to switch mechanism particularly for prepayment electricity meters : en
  • GB420036A - Method of and apparatus for the manufacture of seamless pipes : en
  • US1981578A - Egg cooker : en
  • GB419773A - Improvements relating to domestic fire ranges : en
  • US1981697A - Automatic measuring and weighing device : en
  • US1981049A - Paper making apparatus : en
  • US1981403A - Surface coating castings : en
  • FR773466A - Process for coloring iron, steel and cast iron : en fr
  • CA346101A - Collapsible winder shaft : en fr
  • CA346113A - Oilproof mastic : en fr
  • CA346149A - Cellulose derivative product : en fr
  • AU1758534A - Improvements in the construction of scaffolding and staging and other temporary structures : en
  • US1981363A - Method of making wing nuts : en
  • FR44188E - Manufacturing process of slider clasps : en fr
  • FR773563A - Improvements to spacer sleeves and the like for mounting cutters on shafts or for other purposes : en fr
  • FR773704A - Jockstrap : en fr
  • US1981126A - Decomposition of rare earth metal bearing ores : en
  • US1981691A - Rubber manufacture : en
  • AU1513933A - Methods and means for preparing refractories and refractory masses so produced : en
  • US1981825A - Valve : en
  • US1981238A - Machine for forming glass articles : en
  • US1981022A - Igniting device : en
  • US1981263A - Machine tool : en
  • US1981319A - Window screen : en
  • CA346086A - Tarnishproof cloth : en fr
  • US1981082A - Handle for kitchen or camp implements or utensils : en
  • US1981551A - High pressure injection fuel pump : en
  • CA346142A - Cigarette machine cut-off : en fr
  • AU1795634A - Improvements in or relating to circuit arrangements of gasfilled electric discharge tubes : en
  • AU1807834A - Improvements relating to ventilating installations for railway andother vehicles : en
  • CA346269A - Caulking compound : en fr
  • US1981136A - Girdle : en
  • CA346119A - Pie crust protecting device : en fr
  • CA346129A - Vehicle lamp : en fr
  • CA346091A - Ski fastening : en fr
  • CA346169A - Blue coated ceramic article : en fr
  • AU1528133A - Improvements in brassieres : en
  • CA346118A - Dust collector and separator system : en fr
  • CA346163A - Plastic composition : en fr
  • DE605893C - Pole extractor with fixed cylinder and upward beating piston : de en
  • FR773637A - Improvements in rooms or buildings for drying or other treatment of hides, skins, furskins and other materials : en fr
  • FR773660A - Silent or sound film projection device : en fr
  • DE605997C - Engine cooling for vehicles with rear engine : de en
  • DK49531C - Pump with reciprocating pump means for transporting concrete. : da en
  • FR773671A - Two-pass piping : en fr
  • FR773731A - Watch with mechanism divided into two parts to be attached to a lady's bag : en fr
  • DE605656C - Guide of webs made of paper, cardboard or the like. For treatment on several cylinders : de en
  • FR773507A - Stage lighting control transformer : en fr
  • US1981770A - Ice cream cone : en
  • USRE19375E - Two-speed collector belt fob : en
  • CA346146A - Paper stock preparing apparatus : en fr
  • FR773459A - Sewage treatment process : en fr
  • AU1582434A - Improvement in or relating toa friction element and method of making same : en
  • CA346252A - Hydrocarbon oil conversion : en fr
  • CA346135A - Radiator : en fr
  • US1980999A - Aircraft having sustaining rotors : en
  • US1981764A - Rock drill and like implement : en
  • DE605839C - Booking engine : de en
  • GB420004A - Improvements relating to tea withering : en
  • US1981549A - Separator : en
  • CA346121A - Bottle stopper : en fr
  • US1981548A - Combined electrical indicating instrument and selector switch : en
  • US1981753A - Electric connecter : en
  • US1981611A - Combined cleaner and liquid dispensing apparatus : en
  • CA346267A - Gas processing : en fr
  • CA346233A - Signalling system : en fr
  • US1981384A - Oxidation of hydrocarbons and waxes : en
  • DE606086C - Electrodynamic loudspeaker with a rectangular corrugated membrane that vibrates as a piston : de en
  • US1981371A - Seal for metal straps : en
  • US1981061A - Return bend : en
  • DE605767C - Loeschvorrichtung on calculating machines u. like : de en
  • FR773546A - Hydraulic reel without cable gland, featuring a dry dial : en fr
  • GB419740A - Improvements in and relating to sliding windows for motor or other vehicles : en
  • FR773598A - Base exchanger stabilization process : en fr
  • US1981427A - Device for hanging radiators : en
  • FR773508A - heat exchanger : en fr
  • GB420030A - Improvements in and appertaining to mechanism for use in the shrinking and stretching of woven and like fabrics : en
  • US1981116A - Air-tight sash and window frame : en
  • US1981416A - Metering pump : en
  • FR44171E - Removable and folding frame for camping objects such as beds, tents and others : en fr
  • FR773473A - Process for preparing caustic alkalis : en fr
  • GB419925A - Improvements in and relating to apparatus for cutting vertically drawn glass strip : en
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  • FR773609A - Ditch or canal cleaning machine : en fr
  • FR773496A - Method for suppressing disturbances caused by capacitors in superimposed wave remote control installations : en fr
  • US1981397A - Filter : en
  • FR773677A - Operating device for transoms : en fr
  • US1981401A - Control gear : en
  • AU1605034A - Improvements in or relating to television systems : en
  • CA346179A - Container for liquefied gases : en fr
  • FR773572A - Ski attachment : en fr
  • CA346225A - Electric amplifying system : en fr
  • DE606092C - Arrangement for generating an elliptical rotating field when controlling asynchronous motors : de en
  • US1981590A - Paper serving apparatus : en
  • FR773513A - Wiper : en fr
  • FR773701A - Machine for crushing and grinding grains, seeds, vegetable fibers, etc. : en fr
  • GB419969A - Improvements in or relating to governor and transmitting mechanism therefor : en
  • FR773460A - Improvements to optical sighting devices : en fr
  • US1981192A - Window construction : en
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  • FR773498A - Improvements in the manufacture of glass articles : en fr
  • US1981734A - Controlling device for engines : en
  • US1981133A - Material handling apparatus : en
  • US1981194A - Vulcanizing apparatus : en
  • FR44159E - Gas and vapor treatment process : en fr
  • DE605754C - Voltage drop triggering device with time delay for an automatic switch : de en
  • FR773705A - : fr
  • FR773723A - Flying moussoir : en fr
  • GB420007A - Improvements in motor vehicles convertible for endless track propulsion : en
  • US1981078A - Rolling mill : en
  • DE606062C - Door for motor vehicles composed of several sheet metal parts and metal profiles : de en
  • DE605971C - Device for the removal of characters switched on by means of remote action for calling up the operating personnel in hotels and the like. like : de en
  • FR773610A - Advanced flying machine : en fr
  • FR773501A - Reconstruction material imitating blue granite and its manufacturing process : en fr
  • DE605878C - Retractable undercarriage for aircraft : de en
  • FR773648A - Method for the production of asymmetric heptacarbocyanin dyes : en fr
  • FR44181E - Acetic acid catalyst and manufacturing process : en fr
  • FR773718A - Improvement in tank dye compositions : en fr
  • GB419877A - Improvements relating to rotary engines or pumps : en
  • FR44154E - Synthetic lacquers and their preparation process : en fr
  • FR44158E - Device for supplying vacuum tubes by accumulator battery for automotive vehicle lighting or other uses : en fr
  • DE605641C - Switching device for writing, writing arithmetic or similar machines : de en
  • DE605990C - Pocket tripod : de en
  • FR773551A - : fr
  • US1981054A - Automatic loop regulating mechanism for full fashioned hosiery machines : en
  • US1981257A - Clay working machine : en
  • US1981586A - Combined control valve and pressure gauge : en
  • US1981723A - Knife for thread-cutting temples : en
  • US1981559A - Insulated structure : en
  • FR773646A - Improvements to polypal twin-rotor blowers : en fr
  • DE605928C - Centrifugal switching mechanism for alternately switching on different branches of the external circuit of a magnetic inductor for vehicle lighting that is driven at variable speed : de en
  • GB419781A - Anodic coating of zinc base metals : en
  • GB420154A - Improvements in or relating to decorative lighting fittings : en
  • US1981488A - Rake cleaning device : en
  • FR773480A - Overhead door for garages, warehouses, etc. : en fr
  • FR773472A - Free-piston machine for controlling a multistage compressor : en fr
  • DE605860C - Tree regulators, especially for warp knitting machines : de en
  • FR773622A - Combined carburetor for gasoline and heavy oils : en fr
  • US1981785A - Trap : en
  • US1981504A - Adjustable clutch mechanism : en
  • US1981543A - Curtain support : en
  • GB419837A - Improvements in or relating to metal-shaping machines : en
  • GB419846A - Cleaning composition and processes for using the same : en
  • FR773653A - Method and device for supplying ink to the printing ribbon of typewriters : en fr
  • DK49557C - Crosshead stamping machine. : da en
  • DE605848C - Device for guiding hand stamps into the printing position : de en
  • FR773742A - Hydrodynamic strainer valve : en fr
  • FR773509A - Positive Column Electric Discharge Tube : en fr
  • US1981038A - Gluer : en
  • US1981419A - Building : en
  • US1981679A - Furnace control : en
  • FR773470A - Freewheel coupling for automobile : en fr
  • FR773585A - Manufacturing process of braided slippers : en fr
  • FR773659A - Improvements to bottle washing machines : en fr
  • GB419841A - A reversing gear, especially for marine propulsion : en
  • FR773559A - Board device for stretching the skins : en fr
  • US1981370A - Film feeding mechanism : en
  • US1981643A - Viscose spinning solution : en
  • DE606068C - Balance regulator for watches : de en
  • GB419849A - Improvements in the continuous direct rectification of crude petroleum or other hydrocarbons : en
  • US1980977A - Window display device : en
  • US1981214A - Ophthalmoscope : en
  • DE605887C - Control device for spinning, twisting and similar textile machines : de en
  • DE605940C - Process for the production of a graphite smear : de en
  • US1981127A - Fire box : en
  • CA346199A - Shock absorber valve : en fr
  • GB419766A - Improvements in or relating to the weaving of double pile fabrics : en
  • US1981245A - Space-current device : en
  • CA346221A - Bottle collaring machine : en fr
  • FR773589A - Reinforced dehydration process, followed by drying, of colloids : en fr
  • FR773733A - Improvements to electro-mechanical relays : en fr
  • GB419727A - A braun tube for oscillographic and television purposes : en
  • US1981502A - Extractor : en
  • US1981780A - Locking receptacle for milk bottles : en
  • DE605889C - Device for handling cigarettes : de en
  • DE606005C - Explosive cartridge : de en
  • FR773749A - Method and device for the production of metallic magnesium starting from raw magnesium or from raw materials or waste rich in magnesium : en fr
  • FR773624A - Products for the rapid browning of the skin under the action of the sun : en fr
  • USD93872S - Design fob a dress : en
  • AU1515333A - An improved bracket or pillar clip for supporting pipes and the like : en
  • DE605975C - Method of making steel : de en
  • FR773614A - Advanced machine for electric spot welding : en fr
  • GB419831A - Improvements in or relating to hygienic apparatus particularly for sterilizing dairyutensils and bottle cleaning : en
  • FR773530A - Special profile slats in baked clay, cement concrete or other material for metal frame floors : en fr
  • US1981532A - Means for dispensing the contents of collapsible tubes : en
  • US1981458A - Electric service plug with prongs in cap : en
  • US1981701A - Flying wing : en
  • US1981740A - Necktie clasp : en
  • DE605830C - Shipping and storage box for gloves : de en
  • DE605891C - Feeding device for mobile conveyors : de en
  • GB419755A - Improvements in and relating to loudspeakers : en
  • GB419927A - Improvements in or relating to electrolytic condensers : en
  • US1981463A - Shell opener for cigarette packaging machines : en
  • US1980987A - Xylenitic resin and process of making same : en
  • FR773743A - Jacquard punch and press device for straight knitting machines : en fr
  • CA346240A - Rail joint splice bar reconditioning method : en fr
  • US1981142A - Warp beam : en
  • US1981372A - Tracer device : en
  • FR773662A - Control device for talking film reproducing devices : en fr
  • FR44168E - Galvanic and electrolytic apparatus : en fr
  • FR773529A - Improvement in carding : en fr
  • GB419922A - Lathes and similar machine-tools : en
  • GB420032A - Improvements in controlling means for varying the exhaust valve timing of two-strokecompression ignition engines : en
  • DE605815C - Injection carburetor : de en
  • FR773710A - Straw press : en fr
  • GB419857A - Improvements in infants' feeding bottles, dropping bottles and like receptacles : en
  • FR773465A - Improvements to engine carburetors : en fr
  • GB419919A - A box primarily for pharmaceutical products or other articles : en
  • FR773578A - Improvements to vacuum cleaners : en fr
  • GB419883A - Improvements in or relating to resinous compositions : en
  • DE605882C - Closure for paper vessels : de en
  • DK49540C - Bicycle support. : da en
  • FR773458A - Salon game imitating the game of golf : en fr
  • FR773538A - Ball game device : en fr
  • FR773573A - Hot-air cooking pot : en fr
  • DE605930C - Automatic contactor control for multi-motor drives switched by push buttons : de en
  • FR773542A - Automotive suspension medium : en fr
  • FR773717A - Controlled automatic poppet valve : en fr
  • GB419949A - Improvements in or relating to burners for liquid fuel : en
  • DE605902C - Turbo high vacuum pump : de en
  • DE605901C - Process for the decomposition of hydrocarbon oils under pressure : de en
  • GB419992A - Improvements in and relating to electric advertising signs : en
  • US1981087A - Shoe lacing eyelet : en
  • US1981239A - Building construction : en
  • USD93885S - Design for a chair back : en
  • GB419845A - Improvements in the suspension of engine and gearbox for road rollers : en
  • GB419787A - Sulphur condenser : en
  • GB419866A - Improvements in gasfilled electric discharge tubes : en
  • DE606084C - Process for the production of barbituric acid coagulations : de en
  • FR773655A - Mixer for the preparation of fillerized tars : en fr
  • GB419950A - Improvements in or relating to wrapping machines : en
  • DE605868C - Cow cleaner : de en
  • US1981509A - Cloth measuring drum : en
  • CA346170A - Electrically conducting coating : en fr
  • US1981330A - Ignition device : en
  • GB419853A - Improvements in electromagnetic relays : en
  • GB419874A - Improvements in or relating to the preparation of wet-spinning waste for the manufacture of paper : en
  • US1981282A - Thermostat control : en
  • US1981495A - Filling device : en
  • USD93865S - Design for a speay tip for an oil : en
  • US1981143A - Convertible settee and bed : en
  • US1981399A - Adjustable threaded members and means for locking same : en
  • GB419802A - Improvements in indicating plates : en
  • FR773596A - Device for receiving the expelled shuttle for loom with automatic shuttle change : en fr
  • GB419868A - Manufacture and application of pyrophosphoric acid esters : en
  • US1981657A - Toothbrush : en
  • US1981164A - Method and system for ventilating and conditioning auditoriums and the like : en
  • GB420053A - Improvements relating to door handle fittings : en
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  • DE605838C - Polygonal shell dome supported on points : de en
  • GB420017A - Improvements in typographical composing and slug casting machines : en
  • GB420067A - Improvements in braun tubes, more particularly for television purposes : en
  • US1981193A - Store front construction : en
  • US1981673A - Paper roll holder : en
  • US1981288A - Well pumping apparatus : en
  • DE606116C - windshield wipers : de en
  • GB420039A - Improvements in bag filling machines : en
  • GB419770A - Improvements in and relating to packing cases of cardboard, fibreboard and the like : en
  • DE605858C - Controller for electrical resistance welding machine, especially spot welding machine : de en
  • US1981172A - Method of measuring thermal conductivity : en
  • US1981015A - Apparatus for producing diphenyl : en
  • US1981788A - Bituminous ditch liner : en
  • US1981301A - Compounds of the carbazole series : en
  • FR773594A - Improvements to rails and in particular to railway rails : en fr
  • FR773697A - Improvements to DC dynamos : en fr
  • GB420073A - Improvements in or relating to the manufacture of laminated glass : en
  • GB420298A - Improvements in operations for the production of staple fibre yarns from continuous filaments : en
  • DE606067C - Process for the production of porous bodies, such as bricks or the like. : de en
  • DE605942C - Automatic winding device for curtain rods : de en
  • GB419888A - Improvements in and relating to thermionic valves : en
  • US1981608A - Process for producing an aqueous wax emulsion : en
  • US1981209A - Automatic starting mechanism for internal combustion engines : en
  • US1981236A - Variable speed power transmitting mechanism : en
  • US1981693A - Gear testing apparatus : en
  • US1981051A - Ventilating system : en
  • US1981272A - Vending device : en
  • US1981705A - Locking device : en
  • AU1445633A - Catalytic thermal conversion of hydrocarbon gases or their mixtures into benzene and its homologues and higher aromatic hydrocarbons : en
  • DE605831C - Mobile bridge for loading and unloading storage rooms : de en
  • US1981448A - Cover for leaf springs : en
  • US1981518A - Container : en
  • US1981732A - Method and device for mechanically attaching pins to fly catcher tapes : en
  • US1981347A - Radiocabinet : en
  • US1981348A - Typewriting machine : en
  • CA346100A - Printing device : en fr
  • US1981162A - Method of and machine for applying metal covers to automotive vehicle springs : en
  • US1980974A - Vehicle brake mechanism : en
  • US1981101A - Insole for shoes and method of forming same : en
  • DE605993C - Device for the simultaneous division of a large number of workpieces from a tough, viscous, dry or mushy mass, in particular chocolate mass : de en
  • DE606004C - Children's wheelbarrow : de en
  • DE606087C - Funnel speaker : de en
  • FR773477A - Improvements to economizers : en fr
  • FR773649A - Method of synchronizing television receivers by the transmitter : en fr
  • US1981636A - Apparatus for forming hollow glass articles : en
  • AU1768534A - An improved machine for sweeping carpets, lawns andother ground surfaces : en
  • US1981540A - Primer valve for floor drains : en
  • US1981535A - Oil-filled high voltage cable : en
  • US1981564A - Head lamp : en
  • US1981550A - Machine thread miller : en
  • AU1471333A - Improvements in windmill driven electric generators : en
  • DE605938C - Process for the preparation of anthraquinone dyes : de en
  • CA346237A - Television system : en fr
  • US1981160A - Water system : en
  • US1981757A - Hydraulic pump and motor of hydraulic transmission gear : en
  • FR773500A - Winding or unwinding device for wires, cables, etc. : en fr
  • US1981728A - Caster : en
  • CA346075A - Scaffold pole : en fr
  • CA346109A - Bearing for spindles : en fr
  • CA346174A - Machine table extension : en fr
  • DE605827C - Defect-like device for spreading tobacco leaves : de en
  • DE605987C - Method for deburring fish : de en
  • DE606027C - Process for the production of indolines and indoles : de en
  • US1981187A - Basket : en
  • CA346125A - Ornamental fabric : en fr
  • CA346209A - Electrical precipitation apparatus : en fr
  • DE605844C - Machine for the production of upholstery and furniture nails : de en
  • CA346072A - Railway car truck centre casting : en fr
  • CA346234A - Amplifying system : en fr
  • US1981285A - Combination and convertible baby walker : en
  • US1981577A - Signal : en
  • CA346114A - Resilient wheel : en fr
  • DE605937C - Process for the production of Kuepen dyes : de en
  • DK49546C - Device for hydraulic enclosure machines. : da en
  • US1981474A - Automatic brake tester : en
  • US1981763A - Tire changing device : en
  • DE605898C - Deposit conveyor chain for line typesetting and printing machines or the like. : de en
  • FR773636A - Stepless variable transmission ratio shifting : en fr
  • FR773567A - Telescopic folding seat : en fr
  • AU1483533A - Improvements in cooling apparatus for beer or other beverage contained in casks : en
  • DE606096C - Crack putty, especially for concrete structures : de en
  • US1981715A - Electrodeposition of metals : en
  • GB419738A - Improvements in or relating to clamping mechanism for printing plates, fudge boxes and the like : en
  • GB419741A - Method and apparatus for making boxes : en
  • GB420035A - Improvements in and relating to electric transformers : en
  • AU1733334A - Improvements in and relating tothe production of heat-treated coiled medium or high carbon steel wire rods : en
  • US1981799A - Purification of petroleum sulphonates : en
  • US1981276A - Process of making journal bearings : en
  • US1981395A - Heat exchange device : en
  • US1981562A - Refrigerating apparatus : en
  • FR44155E - Process for manufacturing a very high mechanical strength paper and resulting industrial product : en fr
  • US1981109A - Metal pickling process : en
  • US1981312A - Composite cordage or twine : en
  • US1981079A - Apparatus for handling rolled material : en
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  • US1981472A - Apparatus for making films, foils, and the like : en
  • US1981647A - Bottle carrier : en
  • US1981305A - Process and apparatus for the catalytic treatment of petroleum : en
  • US1981393A - Covering attachment for planters : en
  • US1981487A - Automatic control for car retarders : en
  • GB420054A - Improved transparent heat resisting borosilicate glass : en
  • US1981618A - Railway draft vehicle : en
  • US1981208A - Electromagnetic friction device : en
  • US1981735A - Multiple fuse : en
  • US1981823A - Motor vehicle transmission gearing : en
  • US1981804A - Soap press : en
  • USRE19378E - Oil refining apparatus : en
  • USD93904S - Design fob a glider : en
  • US1981267A - Protector for dipper doors : en
  • FR773514A - Improvements to aluminum-based alloys and process for treating these alloys : en fr
  • GB419902A - Improvements in absorbent pads primarily intended for cleaning purposes : en
  • CA346144A - Electrodeposition : en fr
  • DE606036C - Collector for small DC motors, especially DC counters : de en
  • CA346158A - Cellulose derivative composition : en fr
  • FR773486A - Device for projecting or distributing any liquid on and in the hair : en fr
  • FR773702A - Internal combustion engine and its applications : en fr
  • DE606049C - Self cashier for liquids : de en
  • GB419749A - Improvements in and relating to the control of volume in wireless receiving apparatus or the like : en
  • US1981224A - Automatic positioning mechanism : en
  • GB419779A - Transparent ribbon : en
  • DK49553C - Machine for Shrinking Woven Fabrics. : da en
  • GB576412A - Improvements in navigational instruments : en
  • GB419732A - Improvements in and relating to electrical testing : en
  • US1981600A - Uninflammable balloon : en
  • DE605960C - Process for the production of antirachitic remedies : de en
  • DE606024C - Gas burner : de en
  • CA346090A - Filament, thread, yarn and ribbon manufacture : en fr
  • DE606065C - Machine for grinding and polishing safety razor blades : de en
  • FR773588A - Improvements to insulators and their manufacturing processes : en fr
  • DE605969C - Process for the production of largely inertia-free zinc sulfide fluorescent screens : de en
  • DE606041C - Sealing lids for thin-walled metal drums for packing, storing and shipping, especially of calcium carbide : de en
  • US1981265A - Clay working machine : en
  • US1981610A - Engine : en
  • FR773549A - Adjustment device for adjusting the number of revolutions of motor units : en fr
  • US1981554A - Fruit juice extractor : en
  • US1981170A - Elevating grader : en
  • GB420034A - Improvements relating to charge-forming devices for aircraft internal combustion engines : en
  • US1981340A - Circumferential pipe cutting or welding machine : en
  • GB419798A - Improvements in devices for mechanical separation of dust in gases : en
  • DE605822C - Device for attaching spare wheels to motor vehicles : de en
  • DE606117C - Glass washing device : de en
  • US1981729A - Process and apparatus for dispensing measured charges of liquefied gas : en
  • DE605732C - Mechanical, military drills performing game figure : de en
  • DE604847C - Process for reducing the liquid content of substances containing many capillary spaces : de en
  • GB419751A - Improvements in or relating to traffic control signals : en
  • GB419804A - Improvements in or relating to means for preventing the unauthorised refilling of bottles or other liquid containers : en
  • GB419979A - Improvements in and relating to machines for mixing paints or other materials : en
  • FR773491A - Improvements to welding equipment : en fr
  • GB419860A - Improvements in or relating to adjustable work-guides or steady rests for lathes : en
  • US1981035A - Loop regulating mechanism for full fashioned knitting machines : en
  • US1981359A - Dual purpose gaseous discharge tube : en
  • US1981394A - Link for cross-chains for nonskid devices : en
  • GB419748A - Improvements in or connected with balancing means for control surfaces of aircraft : en
  • USD93890S - Design for a christmas tree : en
  • AU1805134A - Improvements in or relating to handles for wringers : en
  • CA346248A - Rocker shaper : en fr
  • FR773656A - Manufacturing process for sulfonation products : en fr
  • GB420025A - Improvements in or relating to engine mountings for aircraft : en
  • GB419917A - Improvements in snap action electric switches : en
  • US1981527A - Display form : en
  • USD93886S - Design for a casing fob gas : en
  • US1981408A - Permutation lock : en
  • US1981698A - Artificial hand : en
  • CA346242A - Reinforced tank : en fr
  • FR773650A - Variable pitch propeller improvements : en fr
  • CA346189A - Red chromium pigment : en fr
  • US1981199A - Ejector for perforating machines : en
  • US1981374A - Combined long and short wave receiver : en
  • US1981152A - Production of compound materials : en
  • FR773565A - System and apparatus for pumping hazardous liquids : en fr
  • FR773744A - Drive wheel, especially for tractors : en fr
  • GB419784A - Thermionic amplifiers : en
  • FR773691A - Process for reinforcing the walls of hollow bodies, weakened by openings : en fr
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  • FR773607A - Advanced anti-skid chain : en fr
  • US1981471A - Knitted fabric : en
  • US1981336A - Vacuum device : en
  • US1981410A - Pressing and ironing machine : en
  • GB420000A - Improved drive for the regulatable transverse motion of the needle bar in zigzag sewing machines : en
  • US1980980A - Aircraft having sustaining rotors and method of operating the same : en
  • US1981441A - Airplane : en
  • CA346087A - Road-guard : en fr
  • DE605904C - Tensile strength tester with incline weight : de en
  • FR773463A - Bushing-shaped brake body for internal hub brakes : en fr
  • GB419870A - Ink supplying device for printing machines, especially photogravure machines : en
  • US1980978A - Method and apparatus for advancing film past a place of recording or reproduction : en
  • US1981070A - Tufting anchor : en
  • GB419768A - Improvements in trousers, breeches, and the like : en
  • US1981420A - Process of preserving hay : en
  • US1981165A - Automobile jack : en
  • FR44190E - Production process, on aluminum and its alloys, of strongly adhering galvanic deposits : en fr
  • GB419946A - Manufacture of acetic acid and its derivatives : en
  • FR773586A - Mold for cheese making : en fr
  • FR773729A - Improvements to transmitters and receivers for electrical transmission installations : en fr
  • GB419788A - Recovery of elemental sulphur : en
  • US1980989A - Cigarette rolling device : en
  • US1981428A - Transmission : en
  • US1981694A - Machine for attaching soles to shoes : en
  • GB419767A - Improvements in or relating to starting devices for synchronous electric motors : en
  • DE606107C - Fuel pump, preferably for pistonless deflagration chambers used to generate pressurized gases : de en
  • GB419790A - Paper-making : en
  • GB419759A - Combined coat hanger and trouser stretcher : en
  • GB420069A - Improvements in hydraulic power transmission systems : en
  • US1981454A - Stoker control : en
  • GB419903A - Improvements connected with tree felling and cutting apparatus : en
  • CA346157A - Alcohol production : en fr
  • USD93878S - Design for a shoe : en
  • US1981422A - Ventilated bin structure : en
  • FR44182E - Servo motor : en fr
  • US1981790A - Hair net : en
  • AU1588634A - Synthetic resins and method of production thereof : en
  • AU1554433A - Surgical support : en
  • CA346128A - Ventilator : en fr
  • CA346153A - Attaching clip : en fr
  • CA346089A - Receptacle : en fr
  • US1981291A - Tire chain applying and removing mechanism : en
  • US1981452A - Auxiliary feeding hopper for a document handling machine : en
  • US1981567A - Process of shrinking wood : en
  • US1981073A - Package : en
  • CA346079A - Railway vehicle axle bearing : en fr
  • US1981226A - Calculating machine : en
  • US1981648A - Furnace wall structure : en
  • US1980982A - Means for attaching furring strips to cement building blocks : en
  • US1981241A - Transportation container : en
  • CA346191A - Photographic printing process : en fr
  • CA346168A - Metal rolling apparatus : en fr
  • DE605826C - Replaceable rubber tread : de en
  • CA346203A - Hydraulic shock absorber : en fr
  • GB419909A - Improvements in or relating to float operated valves : en
  • US1981294A - Card and envelope supporting tray : en
  • CA346080A - Safety hook : en fr
  • CA346122A - Television apparatus : en fr
  • DE605957C - Teaching and exercise device for paddle rowing movements : de en
  • US1981007A - Analysis of electric currents by thermal effects : en
  • DK49554C - Device for typewriters with one or more ribbons. : da en
  • US1981076A - Portable motor : en
  • FR773591A - Process for grinding, refining and hydration of fibers : en fr
  • GB419931A - Sewing machines for chain stitching, particularly for soles of footwear : en
  • US1981300A - Shoe sole : en
  • US1981449A - Multi-wheel road vehicle : en
  • US1981386A - Towel servidor : en
  • US1981444A - Supporting structure for a roll projection screen : en
  • US1981762A - Magazine cradle : en
  • FR773707A - Improvements to potentiometric resistors with inverter : en fr
  • DE605999C - Cap closure : de en
  • GB419809A - A device for winding cinematograph films : en
  • DE550382C - Manufacture of cutting edge, especially stainless knives : de en
  • US1981815A - Eyeglass lens and method of making same : en
  • CA346105A - Engine governor : en fr
  • US1981774A - Foldable container : en
  • DE605804C - Liquid or paste-like cleaning agent : de en
  • GB419856A - Process of renovating the surface and colour of textile materials : en
  • GB420042A - Improvements in and relating to arc extinguishing arrangements for electric circuit breakers : en
  • FR773570A - Sport game : en fr
  • US1981019A - Window weather guard : en
  • FR773613A - Ignition device for hydrocarbon burners : en fr
  • FR773681A - Frame saw : en fr
  • GB420011A - Improvements in or relating to lubricators : en
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  • US1981004A - Automatic train pipe coupling : en
  • CA346166A - Spark plug : en fr
  • DE606051C - Gate valve to terminate a branch line connected to a continuous main line : de en
  • US1981134A - Apparatus for twisting strands : en
  • US1981180A - Draft gear : en
  • US1981296A - Clip : en
  • CA346138A - Power transmitting device assembling method : en fr
  • DE606038C - X-ray apparatus with high-voltage protected tubes : de en
  • DE606408C - Discharge tubes with gas filling and cold electrodes : de en
  • US1981552A - Fish final-positioning means : en
  • US1981297A - Self-winding timepiece : en
  • US1981468A - Magnet core : en
  • US1981699A - Container for molten metal : en
  • US1981800A - Liquid level control device : en
  • US1981256A - von pein : en
  • US1981746A - Mining apparatus : en
  • US1981201A - Curing bag : en
  • FR773520A - Device to reduce torsional vibrations : en fr
  • FR773727A - Insulating slatted corrugated profile in reinforced concrete : en fr
  • US1981281A - Inkwell or the like : en
  • CA346205A - Cigar machine : en fr
  • DE606043C - Device for loosening the sand in the blow room of sand blow molding machines : de en
  • GB420009A - Improvements in or relating to electric heaters for heating rooms, halls and the like and to electric clocks : en
  • GB419777A - Improvements in or relating to pianofortes and like mechanically operated string instruments : en
  • GB419962A - An improved safety or cut-out device for electric kettles or other electrically-heated vessels or containers, and other electrical apparatus : en
  • GB420031A - Improvements in tea-pots, coffee-pots and like utensils : en
  • US1981221A - Apparatus for applying spring covers to springs : en
  • US1981727A - Art of and apparatus for converting hydrocarbons : en
  • US1981511A - Mechanism for effecting the lapping movement of the thread-guides of warp knitting machines : en
  • US1981286A - Hat construction : en
  • US1981352A - Electrolytic condenser : en
  • CA346235A - Electrical conductor : en fr
  • DE606119C - Device to increase the efficiency of a screw propeller : de en
  • FR773582A - Improvements to injection engines : en fr
  • GB419994A - Improved gas mantle box made in one piece without stitches or glueing from a cardboard blank : en
  • CA346134A - Fertilizer, etc. : en fr
  • IE13349L - Apprattus for dispensing liquids : en
  • CA346211A - Bearing : en fr
  • US1981062A - Shoe machine : en
  • DE606052C - Process for the production of electrolytic platinum deposits : de en
  • DE605832C - Weft insertion device for looms with fixed weft bobbins : de en
  • DE605885C - Shoe glue press : de en
  • US1981423A - Platform attachment for stepladders : en
  • US1981310A - Skimming apparatus : en
  • US1980979A - Pulp board and method of making same : en
  • DE605984C - Process for the production of head washes and hair care products : de en
  • US1981561A - Bandage : en
  • DE605908C - Process for the production of an opaque women's street shoe : de en
  • DE605806C - Dishwasher with a bucket elevator arranged in a washing container : de en
  • DE605814C - Test stand based on electrical power measurement for roadworthy vehicles : de en
  • FR773626A - Quick fixing system of two pieces penetrating one into the other, applicable in particular to the fixing of the inflation fittings on the valves of tires and the like : en fr
  • GB419824A - Improved device for uncapping bottles : en
  • US1981211A - Skate : en
  • GB419752A - Improvements in or relating to record controlled multiplying machines : en
  • FR773525A - Electrical insulation for magnetic bodies : en fr
  • FR773686A - Improvements in spinning looms : en fr
  • GB420040A - A process and apparatus for dehydrating water-containing or water-and oil-containing materials : en
  • FR773685A - Device applicable to devices for wetting continuous webs of paper and fabric as well as other materials : en fr
  • GB419726A - Improvements in or relating to sewing machines : en
  • FR773464A - Plates of fibrous material : en fr
  • DE605939C - Process for the preparation of chlorinated anthraquinone azines : de en
  • DE606025C - Wetting agent for mercerising liquors : de en
  • US1981308A - Tree puller : en
  • US1980990A - Composite window sash and screen : en
  • US1981064A - Electric switch : en
  • US1981329A - Lamp : en
  • US1981318A - Method of producing wheat germ in whole and unflattened state : en
  • US1981592A - Method of impregnating fibrous materials for building elements : en
  • CA346226A - Phonograph : en fr
  • US1981128A - Art of cracking hydrocarbons : en
  • US1981293A - Target range : en
  • US1981731A - Lighting unit box : en
  • US1980993A - Vibration detector : en
  • US1981069A - Coordination of moving pictures and sound records : en
  • US1981125A - Process of treating polyhalite : en
  • CA346076A - Phonograph : en fr
  • FR44177E - Emulsion processes : en fr
  • GB419848A - Improvements in or relating to hosiery knitting machines : en
  • US1980992A - Glass drawing tank : en
  • US1981159A - Air conditioner : en
  • DE605958C - Three- or multi-axle two-rail chassis for excavators or similar heavy equipment : de en
  • DE606010C - Method for mechanically driving routes in lignite underground mining : de en
  • DE606089C - Power limiter : de en
  • FR773584A - Tubular body : en fr
  • GB419742A - The manufacture of neutral, water-soluble complex compounds of trivalent antimony : en
  • GB419776A - Improvements in or relating to closure devices for preventing the refilling of bottles and the like : en
  • GB419907A - Improvements in or relating to spacing collars and the like for mounting cutters on shafts, or for other purposes : en
  • US1981475A - Drilling mechanism : en
  • FR773631A - Fire lighters : en fr
  • GB419797A - Artificial beach : en
  • DE605821C - dare : de en
  • DE605949C - Collet : de en
  • DK49550C - Ignition device for gas burners. : da en
  • CA346195A - Extensible thread bundle production : en fr
  • CA346112A - Toy vehicle : en fr
  • US1981039A - Selvage motion for looms : en
  • DE605951C - Semi-dry developing machine : de en
  • FR44151E - Connection device for pipes and similar parts : en fr
  • FR773722A - Device for the production of emulsions : en fr
  • GB420020A - Improvements in or relating to combined artificial manure distributors and dibblers : en
  • FR773564A - Improvements to electric lamp holders : en fr
  • GB420038A - Improvements in illuminated advertising apparatus or signal lamps : en
  • US1981716A - Insulation for electrical apparatus : en
  • US1981730A - Water cooler : en
  • US1981703A - Laminated glass : en
  • FR773635A - Method and apparatus for the distillation of fatty acids and products obtained : en fr
  • GB419912A - Improvements in or relating to athletic supporters : en
  • FR773553A - Advanced automatic lubricator : en fr
  • GB419944A - Improvements in or relating to shoe bottom levelling machines : en
  • FR773536A - Picture book : en fr
  • GB420146A - Improvements in and relating to aircraft : en
  • DE605894C - Light liquid separator : de en
  • US1981784A - Stiffening devices for maintaining the creases in trousers : en
  • US1981108A - Composition for softening textile goods : en
  • US1981500A - Locking device : en
  • USD93880S - Design for a chewing gum carton : en
  • FR773568A - Improvements in the manufacturing process of wide-angle conical paper tubes for wool, cotton, artificial silk, etc. : en fr
  • GB419928A - Improvements in and relating to means for measuring voltages : en
  • CA346133A - Casket lowering apparatus : en fr
  • CA346262A - Fireproof substance : en fr
  • US1981156A - Telephone call reminder : en
  • US1981501A - Combined clothes washer and drier : en
  • FR44162E - Improvements to internal combustion engines : en fr
  • US1981425A - Substratum for photographic elements : en
  • US1981612A - Cable : en
  • DE606077C - Incandescent cathode tubes with gas filling : de en
  • DE605847C - Numerals for letterpress machines : de en
  • FR773745A - telescopic fire ladder, erectile, metal : en fr
  • US1981117A - Tracer mechanism : en
  • GB420043A - Improvements in and relating to electric welding torches : en
  • US1980995A - Container : en
  • US1981623A - Spraying device : en
  • FR773643A - Rotary tube furnace : en fr
  • GB419982A - Improvements in or relating to exercising apparatus : en
  • US1981534A - Electric switch : en
  • US1981545A - Powder puff pouch : en
  • US1981783A - Dispensing and distributing apparatus for packaged and the like goods : en
  • FR773689A - Rock drill : en fr
  • GB420016A - Improvements in oil burning apparatus : en
  • DE606085C - Pig iron mixer : de en
  • US1981122A - Weed killer : en
  • FR773489A - Steam generator with pressurized hearth : en fr
  • FR773684A - Device for advancing the paper carriage in typewriters : en fr
  • US1981093A - Automobile engine hood : en
  • GB419774A - Improvements in or relating to cutting tools for use, for example, for severing metal binding straps applied to boxes, crates and similar packages : en
  • DE605945C - Compounds containing chlorinated rubber : de en
  • FR44199E - Watertight door for coke oven : en fr
  • US1981750A - Edge guard : en
  • US1981473A - Charge sizer : en
  • US1981011A - Automobile heater : en
  • US1981417A - Method and apparatus for storing and dispensing feed : en
  • US1981575A - Cleaner drum for cotton ginning machinery : en
  • US1981624A - Welding apparatus : en
  • US1981068A - Solution purification : en
  • US1980984A - Lubricating apparatus : en
  • FR773571A - Improvements to apparatus for sorting powder or grain materials : en fr
  • US1981375A - Mortician's lamp : en
  • US1981789A - Starting device for internal combustion engines : en
  • FR44172E - Door handle, especially for motor cars : en fr
  • GB419852A - A device for burning atomized liquid fuel : en
  • IE13841L - Waterproofing textile materials : en
  • GB419884A - Method for producing carbon black : en
  • US1981755A - Climber : en
  • CA346219A - Metal coating : en fr
  • US1981322A - Cathode ray tube : en
  • GB420001A - Improvements in or relating to clocks or like dial and pointer indicators : en
  • US1981380A - Automatic die-casting apparatus : en
  • DE605795C - Feed regulator in which the feed valve is connected to a piston : de en
  • US1981030A - Radiator shield or cover : en
  • US1981805A - Driving mechanism : en
  • GB420051A - Improvements in and relating to relief valves : en
  • DE605802C - Process for refining petroleum u. like : de en
  • DE605864C - Control and mixing device for burners on gas appliances of all kinds : de en
  • DE605931C - Energy direction relay : de en
  • US1981016A - Toast holder : en
  • US1981031A - Emulsifier : en
  • US1981139A - Reel : en
  • US1981314A - Wall construction : en
  • US1981048A - Combination tool : en
  • AU1517833A - Improvements in or relating to thermionic valve circuit arrangements : en
  • US1981622A - Locomotive cleaning apparatus : en