• US2121056A - Titanium iron alloy : en
  • US2121527A - Method and machine for producing coiled wire bunches : en
  • US2121402A - Necktie holder : en
  • US2121734A - Liquid dispensing apparatus : en
  • AT153642B - Process for the production of wrought iron flange flanges, flange rings and the like. like : de en
  • USD110162S - Design for a head covering : en
  • AU464137A - Continuous-track tractor : en
  • US2121466A - Scalp protecting pad for hair waving : en
  • US2121733A - Purifying gases and apparatus therefor : en
  • US2121741A - Hose nozzle : en
  • GB487425A - Improvements in hair drying apparatus : en
  • AU238837A - Improvements in and relating tothe erection of building structures : en
  • US2121514A - Incinerator : en
  • US2121767A - Tuning and indicating apparatus for radio receivers : en
  • AT153698B - Impulse transmitter for certain telephone numbers for self-connecting private branch exchanges. : de en
  • US2121206A - Device for discouraging false alarms : en
  • US2121338A - Plug : en
  • US2121509A - Tetra n-alkyl long chain alkylene diamines and process for preparing them : en
  • US2121688A - Hog oiler : en
  • US2121083A - Refrigerating system : en
  • US2121414A - Automobile door handle and lock mechanism : en
  • US2121746A - Composite abrasive wheel : en
  • US2121223A - Amusement device : en
  • DE661485C - Opener for tilt sash : de en
  • DK54877C - Lubricant. : da en
  • GB487699A - Improvements in thermionic cathodes for use in electric discharge tubes : en
  • GR7466B - EYE GUARDS FOR USE OF VEHICLE DRIVERS. : el en
  • US2121442A - Process of manufacturing culture : en
  • US2121764A - Hand lift truck : en
  • DE661758C - Handkerchief : de en
  • DE661767C - Method for producing a seed tape : de en
  • US2121525A - Fender guide : en
  • US2121116A - Salt shaker : en
  • CA374589A - Water heater : en fr
  • USD110138S - Design for a building : en
  • DE661673C - Method of waterproofing wool fibers : de en
  • US2121138A - Method for manufacturing smokeless powder : en
  • US2121528A - Bag frame structure : en
  • DE661540C - Single-phase controllable alternating current resistor, consisting of a series transformer with grid-controlled discharge paths on the secondary side : de en
  • CA374517A - Meat-curing salt mass : en fr
  • US2121258A - Polymerization of hydrocarbon gases : en
  • GB487607A - Improvements in electrodes for secondary cells, especially those having alkaline electrolytes : en
  • GB487691A - Improvements in and relating to apparatus for delivering measured quantities of powders and the like : en
  • GB487449A - Improvements in or relating to link or fuse boxes for electrical distribution systems : en
  • GB487568A - Improvements in or relating to reeling systems particularly applicable to the reeling of antenna wires in aircraft : en
  • GB487727A - Improvements relating to sliver guiding devices for use in the drawing or drafting of textile rovings : en
  • GB487730A - Hair curling or rolling clip : en
  • US2121440A - Key ring hook : en
  • DE661706C - Additional device for sound film playback devices : de en
  • GB487460A - Improvements in and relating to electric discharge devices : en
  • AT153659B - Process for generating tones or sounds by photoelectric means. : de en
  • GB487666A - Improvements relating to protective systems for electrical networks : en
  • AT153686B - Clamp or clamp, in particular for overhead and feed lines or similar overhead line parts. : de en
  • AT153682B - Cigarette box with pull-out petrol lighter and built-in clock. : de en
  • CA374506A - Cable anchor : en fr
  • USRE20768E - Governor : en
  • AT153665B - Method for increasing the setting speed of compensation devices. : de en
  • AT153689B - Optical light meter. : de en
  • US2121464A - Annular valve seat : en
  • GB487370A - Improvements in and relating to timber building construction : en
  • GB487753A - Improvements in or relating to gas masks : en
  • US2121067A - Double cathode electron discharge device and circuits : en
  • US2121176A - Process of making and applying an arch support for shoes : en
  • US2121313A - Distributor head for stokers : en
  • US2121385A - ignition system : en
  • US2121517A - Art of removing asphalt from asphalt base oils : en
  • US2121641A - Electric incandescent lamp : en
  • US2121346A - Towel cabinet : en
  • DE660815C - Device for impregnating and covering thread-like or ribbon-like structures with cellulose ester lacquers or the like. : de en
  • GB487484A - Improvements in and relating to compression ignition oil engines : en
  • US2121249A - Retainer means for brake hangers : en
  • CA374585A - Defecator : en fr
  • US2121149A - Brake lining testing machine : en
  • US2121323A - Solvent refining process : en
  • FR48727E - Condensation product based on formalin and urea : en fr
  • DE661556C - Suspension device for heat exchangers, especially superheaters : de en
  • US2121608A - Network system of distribution : en
  • USD110232S - Design for lace : en
  • US2121196A - Anesthetizing apparatus : en
  • GB487454A - Improvements in or relating to compression-ignition oil engines : en
  • US2121147A - Clasp : en
  • US2121422A - Attachment of fastenings and fittings to suitcases and the like : en
  • US2121553A - Reservoir release valve device : en
  • GB487690A - Improvements relating to electric switches, and other like fittings used in electricity distributing systems : en
  • GB487808A - Improved machine for making cigar bunches : en
  • GB487843A - Improvements in or relating to machines for polishing natural or artificial marble, stone, granite, slate and mirrors, for abrading and sandpapering woods or metals, for arnishing machines and other mechanical applications : en
  • US2121342A - Manufacture of alkylidene diesters : en
  • US2120997A - Braking device : en
  • US2121284A - Oven door : en
  • USD110222S - Design for a bracelet chain : en
  • GB487703A - Flexible couplings, particularly for use in motor vehicle transmissions : en
  • US2121328A - Locomotive tender : en
  • US2121515A - Lock : en
  • CA374629A - Candle holder : en fr
  • AT153695B - Lacquer box with adjustable lid. : de en
  • CA374544A - Aerial lead-in arrangement : en fr
  • CA374624A - Pressing iron : en fr
  • GB487490A - Improvements in and relating to laminated driving belts : en
  • DE661666C - Safety lock for boxes, especially folding boxes : de en
  • DE660850C - Electric single drive : de en
  • GB487696A - Improvements in and relating to buoy lamps : en
  • GB487649A - Improvements in and relating to hair curlers : en
  • GB487715A - Improvements in and connected with electric accumulators : en
  • US2121579A - Water jacket : en
  • US2121664A - Device for preventing conflagrations on boats by fuel leaks : en
  • US2120984A - Wireless and like receiver : en
  • US2121264A - Automobile awning : en
  • US2121609A - Phase sequence apparatus : en
  • FR48774E - Automobile engine starting device : en fr
  • GB487500A - Improved apparatus for dosing liquids and gases : en
  • GB487582A - Improvements in packings for valve spindles and the like : en
  • DE661477C - Process for drying paper and similar material webs : de en
  • US2121048A - Line casting and composing machine : en
  • GB487462A - Improvements in and relating to vapour electric discharge devices : en
  • GB487350A - Improvements in or relating to the vulcanisation of goods of spongy or cellular rubber or the like material : en
  • DE661599C - Process and apparatus for discharging reaction mixtures from pressurized reaction systems : de en
  • US2121222A - Belt : en
  • US2121594A - Network distribution system : en
  • DE661752C - Absorber and evaporator for absorption chillers : de en
  • FR829399A - Improvements to culinary salts and their use in the treatment of organic materials such as food substances : en fr
  • GR7474B - CRUSSOR FIREWOOD FOR MISSIONS. : el en
  • GB487468A - Springing, particularly for power vehicles : en
  • US2120979A - Acoustic element for sound studios : en
  • DE661644C - Connection piece for transmission devices of movement forces : de en
  • DE661690C - Process for compacting bulk masses : de en
  • US2120966A - Material handling apparatus for machine operations : en
  • US2121401A - Spray nozzle : en
  • GB487428A - Method and means for testing the abrasion-resisting properties of materials : en
  • FR48726E - Servo motor : en fr
  • US2121281A - Faucet : en
  • US2121038A - Insecticidal compositions : en
  • US2121192A - Lamp : en
  • US2121065A - Formation and packaging of material : en
  • US2121051A - Cement retainer : en
  • US2121602A - Process of making copper oxides : en
  • US2121040A - Production of textile materials : en
  • US2121689A - Sewing machine with looper thread control : en
  • DE661732C - Machine for closing and wrapping filled bags, especially tea bags : de en
  • US2121213A - Interior paneling : en
  • FR829303A - Manufacturing process of mechanical parts in alloys of iron and chromium resistant to acids and rust : en fr
  • FR829342A - Improvement in fire extinguishers : en fr
  • US2121376A - Stop mechanism for knitting machines : en
  • DE661491C - Device for regulating the speed of a vehicle driven by an internal combustion engine by means of electrical power transmission : de en
  • GB487362A - Process for the extraction of alkali hydroxides and/or carbonates and of alumina from alkali metal and aluminium silicates : en
  • GB487400A - Improvements in or relating to means for generating and regulating pressure gas from chemical reactions : en
  • FR48724E - Automatic hotplates feeding system, particularly for small coals : en fr
  • GB487615A - Improvements in or relating to boilers adapted for the production of low pressure steam : en
  • GB487604A - Process for the manufacture of polymerisation products : en
  • GR7472B - ELECTRIC LIGHTING ELECTRIC LAMP. : el en
  • GR7478B - AIR ROOF CLOSURE OF DOORS AND WINDOWS FOR PROTECTIVE AREAS. : el en
  • US2121136A - Safety match folder : en
  • FR48728E - Security device against theft for all locks without key, controlled by timer index : en fr
  • FR48740E - Mounting principle of rotary distributors for internal combustion and combustion engines : en fr
  • FR829319A - Method and device for air purification : en fr
  • DE661564C - Device for monitoring the operating state of electrical devices containing OEl : de en
  • GB487371A - Improvements in the feeding of automatic firearms : en
  • GB487527A - Improvements in brackets for luggage racks : en
  • DE661738C - Power transmitting fluid for pressure devices : de en
  • GB487794A - Improvements in and relating to lay figure display stands : en
  • GB487560A - Television transmitter : en
  • GB487619A - Improvements relating to electric switches of the tumbler type : en
  • US2121070A - Machine for delivering measured charges of fluent material : en
  • US2121418A - Clutch bearing mechanism : en
  • GB487514A - Improvements in and relating to hooks for lifting and like purposes : en
  • GB487364A - Improved freight transferring apparatus : en
  • GB487662A - Method for the manufacture of electric heating elements : en
  • US2121412A - Method for treating zinc and product formed thereby : en
  • US2121448A - Hard metal composition : en
  • US2121238A - Vehicle seat structure : en
  • CA374575A - Pencil runner tube : en fr
  • GB487413A - Improvements in riveting machines : en
  • GB487585A - Improvements in and relating to electric gas-blast switches : en
  • DE661722C - Automatic trailer coupling for vehicles of all kinds : de en
  • GB487466A - Improvements in and relating to valve circuit arrangements for automatic limitation of the duration of an electrical process : en
  • FR48720E - Process of action on living cells of microorganisms and other organisms susceptible of industrial applications : en fr
  • DE661546C - Trip device for cinematographic apparatus : de en
  • US2121244A - Quick coupling valve with resilient cover : en
  • GB487673A - Improvements in and apparatus for the removal of hydrogen sulphide from hydrocarbon liquids : en
  • AU104203B2 - Continuous-track tractor : en
  • US2121217A - Venetian blind slat : en
  • US2121590A - Vacuum-and gas-tight vessel for electric apparatus : en
  • GB487701A - Improvements in new processes for the treatment of unbleached impure, semi-chemical and like cellulose pulps : en
  • DE661484C - Slice depositing device on slicing machines : de en
  • DE661696C - Electrically heated hot water storage tank with optional heating either of the entire water content or only its upper part : de en
  • GB487702A - Improvements in a process for flameproofing materials : en
  • GB487834A - Process for the separation of mixtures of volatile inorganic chlorides or/and oxychlorides : en
  • GB487732A - Improvements in and relating to electric immersion heaters : en
  • GB487367A - Preparation of vitamin concentrate : en
  • US2121493A - Boiler cleaner : en
  • US2121519A - Bag frame structure : en
  • USD110206S - Design for a dress : en
  • GB487798A - Manufacture of vat dyestuffs : en
  • AT153603B - X-ray auxiliary device. : de en
  • CA374509A - Wave signalling system : en fr
  • CA374649A - Elastic undergarment : en fr
  • US2121498A - Call distributing telephone system : en
  • US2121085A - Clamp : en
  • US2121461A - Seed germinating machine : en
  • US2121541A - Method for manufacturing pen points : en
  • DE661616C - Laundry folding machine : de en
  • US2121394A - Container and closure therefor : en
  • US2121695A - Polymerization process : en
  • USD110168S - Design for a hat : en
  • US2121656A - Grinding wheel : en
  • IE15606L - Detergents; wetting, emulsifying etc. agents : en
  • CA374545A - Cathode ray tube : en fr
  • CA374644A - Hydraulic power plant : en fr
  • DE659664C - Process for the most complete recovery of the sulfite pulp waste liquor in concentrated form : de en
  • US2120993A - Cable connecter fitting : en
  • US2121144A - Bracket : en
  • US2121212A - Demonstrating device : en
  • GB487483A - Couplings or connections for electric lamp-holders : en
  • AU341737A - Improvements connected with automatic stokers for furnaces andthe like : en
  • USD110194S - Design fob a handbag : en
  • CA374639A - Correspondence case : en fr
  • DE661423C - Machine for applying labels or wrappings to preferably cylindrical objects : de en
  • DE661733C - Process for the production of starch from corn : de en
  • DE661579C - Closure for the nozzle opening of the mass cylinder of an injection molding machine : de en
  • AT153652B - Pyrophoric pocket lighter. : de en
  • DE661543C - Electrothermal melting furnace for the most possible induction-free power supply to the individual electrodes : de en
  • FR829301A - Electric water heater : en fr
  • FR829335A - Machine for die casting of metals : en fr
  • DE661529C - Starting device for internal combustion engines : de en
  • DE661615C - Ironing trough for ironing machines : de en
  • CA374559A - Decay preventing process : en fr
  • GB487392A - Improvements in or relating to the manufacture of reinforced asbestos or asbestos cement sheets, blocks and the like : en
  • US2121046A - Conversion and treatment of mineral oils : en
  • US2121657A - Electromagnetic control means : en
  • AT153617B - Heat protection mat. : de en
  • US2121607A - Oscillator : en
  • US2121639A - Hot water heating control device : en
  • US2121354A - Valve : en
  • GB487372A - Improvements in or relating to braun tubes : en
  • US2121082A - Integrator mechanism for measuring instruments : en
  • GB487616A - Automatic flying control for model aeroplanes : en
  • US2121575A - Lighting fixture : en
  • US2121077A - Glass-clear synthetic resin product and process of making same : en
  • GB487752A - Process for dehydration of mixtures of carbon dioxide and ammonia : en
  • US2121728A - Blowtorch and attachments : en
  • US2121476A - Device for curling hair : en
  • US2121074A - Method and apparatus for digesting cellulosic material : en
  • US2121156A - Basket-type floor merchandiser : en
  • DE661723C - Locking device for the brake lever of a motor vehicle : de en
  • DE661640C - Automatic release device for driving the cutting unit of mowing machines : de en
  • GB487779A - Improvements in and relating to electrodes for electric discharge devices : en
  • DE661731C - Process for the production of brewing bags for tea, coffee and the like like : de en
  • US2121141A - Electrical power indicating apparatus : en
  • USD110185S - Design for a brush : en
  • GB487554A - Improved means for carbonating water and beverages : en
  • FR48712E - : fr
  • US2121444A - Electric cooker and toaster : en
  • US2121081A - Stereophotogrammetric plotting apparatus : en
  • US2121270A - Putting game : en
  • US2121362A - Valve guide : en
  • US2121679A - Floor covering : en
  • GB487684A - Improvements in boiler furnaces and the like : en
  • FR829398A - Photographic plate : en fr
  • US2121636A - Photoelectric device : en
  • GB487441A - Improvements in or relating to teleprinter exchange systems : en
  • GB487796A - Improvements in pipe couplings : en
  • US2121179A - Parking control apparatus : en
  • USD110173S - Design for a lamp shade or similar : en
  • GB487665A - Improvements in knitted fabric and in the production thereof : en
  • IE15147L - Jointing bricks : en
  • GB487525A - Improvements in or relating to a process for the manufacture of compressed ferro-magnetic alloy powder cores : en
  • US2121001A - Rustless iron : en
  • US2121534A - Fluid compressor : en
  • US2121690A - Resinous coating compositions : en
  • US2121226A - Ethylene glycol di-(halo-aryloxyacetates) : en
  • US2121631A - X-ray tube : en
  • FR829356A - : fr
  • US2121135A - Carton forming machine : en
  • FR48798E - Electronic lamp : en fr
  • FR829327A - Advanced electric motor : en fr
  • GB487674A - Improvements in or relating to electron discharge devices : en
  • DE661605C - Process for regulating an electrical transfer power between two power networks : de en
  • FR829329A - Warning devices : en fr
  • US2121078A - Supporting mechanism for the crown sheave of a drilling machine : en
  • US2121738A - Lighting fixture : en
  • USD110231S - Design fob a dress : en
  • FR48702E - Flame retardant solutions and their manufacturing process : en fr
  • GB487759A - A multiple rolling mill : en
  • GB487739A - Delivery arrangement for pneumatic dispatch systems : en
  • US2121017A - Beta-naphthol monoazo alkoxynitrophenyl dyes : en
  • US2121687A - Cross country vehicle : en
  • DE661748C - Roll calibration for rolling mills for the production of T,?, Z or similar profile bars : de en
  • GB487693A - Improvements in plug and socket fittings for electric circuits : en
  • US2121164A - Totalizing system : en
  • US2121548A - Reservoir release valve : en
  • GB487719A - Electron image amplifier and dissector : en
  • CA374626A - Centrifugal separator : en fr
  • AU104217B2 - Directional sound receiving device : en
  • GB487451A - Improvements in or relating to wireless receiving apparatus : en
  • GB487515A - Improvements in and relating to handles for suction and like cleaners and sweepers : en
  • GB487781A - Improvements in centrifugally controlled electric switches : en
  • DE661717C - Device for stepless and lossless control of piston pumps : de en
  • FR829324A - Improvements to devices for cooling automobile engines, heating and ventilating car interiors : en fr
  • GB487485A - Directional antenna system : en
  • GB487456A - Improvements in suspension electric insulators : en
  • GB574994A - Improvement in means for feeding ammunition to machine guns : en
  • US2121366A - Braking mechanism : en
  • US2120992A - Pneumatic tool : en
  • USD110150S - Design for an automobile aerial : en
  • US2121650A - Conveyer belt : en
  • US2121668A - Method of treating leather board : en
  • US2121766A - Door holder : en
  • USD110159S - Design fob a buoyant waterboard : en
  • DE661704C - Method and device for the production of curved glasses with a bent edge : de en
  • GB487478A - Tufting attachment for sewing machines : en
  • GB487868A - Automatic coin counting and wrapping machine : en
  • US2121139A - Pickling tank structure : en
  • US2121427A - Sensitivity control system for automobile radio receivers : en
  • US2121628A - Conveyer : en
  • GB487671A - Improvements in or relating to temperature regulating devices : en
  • US2120982A - Lead seal : en
  • USD110167S - Design for a barrette : en
  • US2121546A - Brake control apparatus : en
  • US2121757A - Earth anchor : en
  • FR48775E - Country motor vehicle : en fr
  • DE661643C - Air-compressing injection internal combustion engine with self-ignition : de en
  • FR48756E - Device for attaching the handle to brooms, parquet brushes, hammers and other utensils or tools with handles : en fr
  • CA374510A - Accumulating and printing device : en fr
  • DK54881C - Procedure for the manufacture of ready-made articles by pressing synthetic resin mixtures. : da en
  • US2121004A - Method of cutting material : en
  • GB487692A - Method of and means for manufacturing iron by direct reduction : en
  • GB487377A - Improvements in cooled working pistons, more particularly intended for compressorless internal combustion engines : en
  • US2121158A - Oscillation generator : en
  • US2121462A - Conveyer screw : en
  • DE661603C - Multiple telegraph system : de en
  • GB487847A - Improvements in or relating to draught controllers : en
  • CA374621A - Oscillating wing aircraft : en fr
  • US2121282A - Combined telephone and fire alarm system : en
  • US2121439A - Mold : en
  • USD110145S - Design fob a combined candlestick : en
  • GB487629A - Improvements relating to thermostats : en
  • DE661667C - Device for the even feeding of unevenly arriving raw material into a raw material processing plant : de en
  • FR829320A - Mechanical corrector for aircraft tracking system : en fr
  • DE661534C - Beer tap : de en
  • AT153675B - Drilling and milling device with automatic tool feed. : de en
  • CA374534A - Offset process : en fr
  • US2121128A - Baked article : en
  • DE661501C - Knee pads made of rubber : de en
  • GB487844A - Sheet metal and method of manufacture : en
  • DE661734C - Humidifier for dextrin or starch : de en
  • US2121685A - Directional signal : en
  • USD110226S - Design for a velocipede frame : en
  • FR48760E - Improvements in methods and devices for fuel injection in internal combustion engines : en fr
  • US2121549A - Diaphragm valve : en
  • GB487758A - Saws : en
  • US2121110A - Rotary pump or compressor : en
  • GB487502A - Improvements in or relating to thermionic valve oscillation generators : en
  • GB487771A - Improvements in or relating to the production of stigmasterol : en
  • US2121274A - Automatic time valve : en
  • GB487655A - Brush for cleaning shoes : en
  • DE661492C - Device to prevent incorrect switching for overlay remote control systems : de en
  • DE661618C - Rotary piston machine with piston blades displaceable in grooves of a rotating piston drum transversely to the plane of rotation : de en
  • DE661702C - Device for filling pneumatic injection syringes : de en
  • GB487518A - Improvements in or relating to plant pots or containers : en
  • DE1438797U - : de en
  • DE661514C - Variable resistor combined with a push button switch : de en
  • DE661563C - Arrangement for grid control in converters : de en
  • FR48722E - Chromatable dyes of the triaryl-methane series and process for the preparation thereof : en fr
  • FR829322A - Development of internal combustion engines : en fr
  • DE661672C - Multi-ring propeller turbine with an inlet shaft divided by a partition : de en
  • GB487841A - Improvements in or relating to the case-hardening of iron or steel : en
  • USD110221S - Design fob a doll : en
  • US2121347A - Apparatus for generating oxygen, especially for breathing purposes : en
  • US2121627A - Apparatus for sealing metal to glass : en
  • US2121131A - Print roll composition : en
  • US2121165A - Mixing bowl : en
  • US2121294A - Synthetic resinous material and method of producing it : en
  • DE661555C - Process for the preparation of an o-oxycarboxylic acid : de en
  • CA374578A - Brake drum : en fr
  • AU104193B2 - Improvements in or relating to parachute signal or illuminating devices : en
  • GB487609A - A new and improved artificial lure for fishing purposes : en
  • CA374501A - Cap and package : en fr
  • CA374622A - Vacuum cleaner bag emptying means : en fr
  • US2121334A - Method of preparing an oil varnish : en
  • FR829314A - New hydraulic remote control : en fr
  • GB487374A - Improvements in or relating to fasteners for wearing apparel : en
  • DE657648C - Board game in the style of a chessboard-like terrain game : de en
  • DE661700C - Spinneret for the production of artificial fibers : de en
  • GB487647A - Improvements in or relating to photographic shutters : en
  • GB487724A - Process for colouring textiles : en
  • US2121058A - Wave presser : en
  • US2121587A - Elevator dispatching system : en
  • FR829347A - Improvements in alternating current telegraphy methods and apparatus : en fr
  • GB487535A - Latch : en
  • GB487700A - Improvements in and relating to wireless receiving systems and the like : en
  • DK54893C - Awning. : da en
  • FR48750E - : fr
  • FR48764E - New chromatable anthraquinone dyes and their preparation process : en fr
  • US2121290A - Mounting : en
  • GB487842A - Improvements relating to detergent compositions and process of applying the same : en
  • DE661535C - Arrangement of boats and their launching devices on passenger ships : de en
  • CA374633A - Double hook : en fr
  • US2121760A - Electric discharge device : en
  • AU138237A - Improvements relating tothe permanent waving of hair : en
  • GB487414A - Improvements in or relating to a method of and apparatus for removing water and the like form a travelling web of paper, such as a web of waxed paper : en
  • FR48708E - Thermal engine applicable in particular for the automatic winding of clocks : en fr
  • US2121043A - Cutter chain : en
  • US2121340A - Piezoelectric crystal holder : en
  • US2121102A - Piston valve atomizer : en
  • US2121302A - Road joint brace : en
  • US2121353A - Rubber heel : en
  • US2121705A - Trailer hitch : en
  • US2121588A - Motor control system : en
  • US2120961A - Tank cover construction : en
  • USD110154S - Design for a lace tablecloth : en
  • GB487388A - An improved adhesive containing glue : en
  • DE661512C - Rotary switch with switching devices for controlling electrical machines : de en
  • DE661528C - Quick connection for shots from iron pillars : de en
  • IE15068L - Circular knitting machines : en
  • FR48766E - Remote transmission flying installation with pupinized cables, in particular with a small number of conductors : en fr
  • DE661567C - Adjustable spool for artificial silk : de en
  • US2121180A - Method for gettering vacuum tubes : en
  • AU104168B2 - Expansible waistband for trousers and the like garments : en
  • US2121006A - Method of rendering textiles resistive against shrinking and product thereof : en
  • AU104222B2 - Improvements in mincing machines : en
  • GB487412A - Improvements in or relating to kinematographic film cameras : en
  • GB487415A - Improvements in or connected with sound locators : en
  • USRE20765E - Shaving apparatus : en
  • CA374620A - Hog cholera vaccine : en fr
  • DK54874C - Alloy for permanent magnets and method for its manufacture. : da en
  • GB487601A - Production of dyestuff pigment pastes : en
  • US2120994A - Carrier communication system : en
  • AU435737A - Method of and means for regulating the density of fluids : en
  • US2121025A - Lapping machine : en
  • US2121069A - Circular saw : en
  • US2121095A - Combined clutch and friction retarding means for hand brakes : en
  • CA374518A - Meat curing method : en fr
  • CA374524A - Insecticide spraying apparatus : en fr
  • US2121191A - Weighing or checking the weight of cigarettes : en
  • USD110166S - Design fob a wrist-watch : en
  • USD110193S - Design fob a waffle iron : en
  • CA374500A - Cyanine dye : en fr
  • AT153639B - Device for chip removal from drilling machines, in particular from fine drilling machines. : de en
  • CA374515A - Textile material processing : en fr
  • DE661765C - Wedge-shaped share for tillage : de en
  • AT153604B - Clamping device for tooth regulating devices. : de en
  • CA374552A - Mould friable core : en fr
  • AT153690B - Roll film camera for perforated picture tapes. : de en
  • AU104171B2 - Improvements in or relating tothe manufacture of hollow articles of rubber : en
  • FR829382A - Direction indicator for motor vehicles and other vehicles : en fr
  • US2121568A - Anamorphosing light flux system : en
  • US2121570A - Electric switch : en
  • US2121055A - Corrosion resisting iron : en
  • DE661645C - Stopcock with a lubricating piston activated by the movement of the stopcock plug : de en
  • CA374523A - Heat exchange apparatus : en fr
  • US2121221A - Mirror provided lipstick receptacle : en
  • US2121311A - Respiration apparatus : en
  • US2121415A - Process for the manufacture of sheets, bands, tubes, rods, and the like, and in particular wire : en
  • US2121445A - Control mechanism : en
  • GB487678A - Improvements in or relating to the manufacture of ready-to-eat-cereal foods : en
  • CA374610A - High speed vessel : en fr
  • GB487743A - Improvements in surgical and medical plasters : en
  • CA374631A - Multiple colour printing machine : en fr
  • US2121731A - Cellulose ether recovery : en
  • US2121047A - Tooth powder dispenser : en
  • US2121140A - Sign painter's table : en
  • CA374611A - Windmill wheel arm : en fr
  • AU104178B2 - Dispersible sulphur and compositions containing thesame : en
  • DE661740C - Method for producing a sealing frame for gas protective masks : de en
  • US2121552A - Trip controlled brake : en
  • AU236037A - Directional sound receiving device : en
  • US2121257A - Walking hobbyhorse : en
  • CA374530A - Sanderplane : en fr
  • FR829343A - Improvements to dispensing containers : en fr
  • GB487694A - Improvements in or relating to arch supporting stiffeners for shoes : en
  • AU96237A - Improvements in or relating to composite aircraft andthe transference of fuel therebetween : en
  • AT153681B - Friction wheel lighter. : de en
  • CA374558A - Floor and wall covering material : en fr
  • FR48752E - Device for firing compressed air with mechanical firearms of all kinds : en fr
  • FR829374A - Improvements in sound film production : en fr
  • AU104229B2 - Improvements in and relating to electrical signalling and like apparatus : en
  • US2121219A - Lawn mower : en
  • AU104228B2 - Nut retaining means for bolt and nut connections : en
  • AT153688B - Vibrating grate for room stoves. : de en
  • US2121312A - Regulating valve for refrigerating systems : en
  • FR48779E - Shield for the execution of underground works : en fr
  • US2121301A - Magnetic lock and key : en
  • GB487770A - Manufacture of derivatives of ª -oxynaphthoic acid : en
  • FR829306A - Improvements to the processes for constituting silhouettes, designs or decorative or artistic patterns : en fr
  • DE661624C - Screw cap for wash bottles : de en
  • DE661682C - Street, sports or social suit : de en
  • US2121430A - Fixture : en
  • US2121560A - Variable timing device : en
  • US2121642A - Synthetic resin : en
  • DE661544C - Hot water tank : de en
  • GB487365A - Process for producing plastic masses, foils and threads and other structures from solutions of cellulose in sulphuric acid : en
  • US2120990A - Artificial thread : en
  • US2121367A - Process of catalytically hydrogenating high-molecular nonaromatic carboxylic acids : en
  • US2121380A - Bottoming tap : en
  • GB487338A - Improvements in or relating to phase adjusting and/or measuring devices : en
  • DE661519C - Electric tellurium vapor discharge lamp : de en
  • DE661607C - Winding capacitor, in the winding of which metal foils are wrapped, which form a protruding tube on each side of the winding for fastening the connecting wires to the end faces of the winding : de en
  • FR48773E - Liquid sprayers : en fr
  • FR48762E - Electric rocker switch : en fr
  • GB487558A - Improvements in machines for tracing (e.g. scoring or creasing) or cutting-out bandshaving edges which are involutes of a circle on a plane surface : en
  • DE661709C - Rotary valve seal for internal combustion engines : de en
  • GB487608A - Improvements relating to searchlights : en
  • CA374590A - Transformer : en fr
  • AU476837A - Improvement in roofing strip : en
  • US2121309A - Rotary printing press : en
  • US2121396A - Dispensing apparatus with indicator and automatic controls : en
  • USD110199S - Design for an antenna for automo : en
  • US2121220A - Roof drain : en
  • US2121291A - Roof support for underground passageways : en
  • USRE20766E - Lead sheathed cable and method of protecting the lead against corrosion : en
  • GB487697A - Improvements in high vacuum distillation process : en
  • FR829383A - Wooden sole, intended for the inside of shoes and slippers : en fr
  • GB487593A - Manufacture of mixed polymerisation products soluble in benzine : en
  • AU359537A - Improvements in or relating tothe production of pigmented compositions inorganic vehicles : en
  • US2121013A - Article and material containing organic derivatives of cellulose : en
  • US2121490A - Door stop : en
  • US2121298A - Briquette cooling conveyer : en
  • US2121266A - Windshield cleaner : en
  • US2121437A - Process of making asphalt : en
  • FR829321A - New process for applying dyes based on silver salts to fibers and hair : en fr
  • GB487762A - Improvements in electric discharge tubes : en
  • US2121506A - Carburetor : en
  • DE661495C - Arrangement for controlling relays via electron tubes, the control currents of which are in the order of magnitude of the grid currents, in particular by photocells : de en
  • DE661686C - Process for separating the antirachitic component from irradiated 7-dehydrocholesterol : de en
  • GB487417A - Improvements in or relating to chairs, seats and the like : en
  • US2121350A - Feeding mechanism for slicing machines : en
  • US2121337A - Dyeing mixed fibers : en
  • DE661719C - Holding device for half masks made of sponge rubber : de en
  • DK54895C - Construction set. : da en
  • US2121120A - Fluid meter : en
  • US2121231A - Container valve : en
  • US2121363A - Burial vault : en
  • DE661532C - Stopcock for compressed air brake lines : de en
  • FR829370A - Process for preparing an antibacillary product : en fr
  • FR48716E - Mobile ceiling wine tank : en fr
  • US2121052A - Pontoon, float, and the like : en
  • GB487359A - Improvements in or relating to fuel feeding devices for use in starting internal combustion engines : en
  • US2121189A - Crane excavator : en
  • FR48785E - Country motor vehicle : en fr
  • GB487455A - Improvements in or relating to motor driven food mixers : en
  • DE661580C - Personal scales with height measuring device : de en
  • FR48717E - Process for the reduction of oxides : en fr
  • GB487517A - Self-locking nut and bolt : en
  • GB487726A - Apparatus for the automatic clearing of hoppers : en
  • FR829366A - Improvements to light and ultra-light alloys self-protected against corrosion and their manufacturing processes : en fr
  • DK54890C - Device for bicycle screens for mounting cat eyes and taillights. : da en
  • DE661679C - Process for the production of three-color images using colloid printing plates colored with basic dyes : de en
  • US2121237A - Bearing : en
  • US2121488A - Tooth brush holder : en
  • US2121540A - Paper manufacture : en
  • FR48703E - Process for ensuring the sealing of a piston in a cylinder, oval or not, and piston ring particularly intended for the implementation of this process : en fr
  • FR48755E - Brake improvements : en fr
  • GR7476B - PERFECTIONS IN ARTIFICIAL UTENSILS. : el en
  • DE661730C - Process for the production of waterproof shoes and boots : de en
  • FR48782E - Toxic gas protection device : en fr
  • GB487589A - Improvements in gyroscopes : en
  • AU104172B2 - Collapsible stand forthe display of goods and similar purposes : en
  • GB487396A - Process and apparatus for the preparation of a fuel and gas mixture : en
  • GB487437A - Improvements relating to electric circuit controllers : en
  • US2121061A - Method of and apparatus for the indexing and photo-transcription of records : en
  • US2121113A - Golf tee : en
  • DE661541C - Multi-phase transformer in economy circuit for coupling networks : de en
  • CA374565A - Refrigerating system absorber : en fr
  • US2121300A - Apparatus for atomizing : en
  • US2121598A - Metal case rectifier : en
  • US2121063A - Electrical plug connection : en
  • GB487536A - Improvements in and relating to apparatus for producing mixtures of gas and air for combustion : en
  • GB487584A - Improvements in or relating to apparatus for preparing and drawing off whipped creamor similar products : en
  • GB487503A - Improvements in or relating to the manufacture of highly concentrated vermin destroying agents and the like, emulsifiable in water : en
  • US2121088A - Brassiere and the like : en
  • US2121183A - Process for the manufacture of condensation products of dicarboxylic acid anhydrides : en
  • US2121750A - Game and practice apparatus : en
  • US2121132A - Light reflecting means : en
  • US2121459A - Separation of amylase and protease : en
  • FR48770E - Advanced flying machine : en fr
  • US2121508A - Governor means : en
  • US2121725A - Condenser tester : en
  • GB487680A - Improvements in or relating to fluid pressure relay mechanism : en
  • US2121714A - Window construction : en
  • DE661661C - Desk cutlery : de en
  • DE661670C - Bidet battery for water pipe connection : de en
  • US2121633A - Method of treating carbon black : en
  • DK54891C - Drain valve. : da en
  • US2121597A - Electrode support : en
  • US2121640A - Refrigerator : en
  • FR48758E - Process for removing sulfur, arsenic and other harmful constituents from iron and iron alloys : en fr
  • GB487549A - Improvements relating to fastening devices for sliding panels or windows : en
  • GB487836A - Process for the production of magnesium : en
  • DE661536C - Device for the selective control of the AC locomotives of toy trains : de en
  • DE661664C - Soaked molding, especially for road construction purposes, as well as processes for its production : de en
  • GB487642A - Improvements in chlorinated aralkyl ketones : en
  • AT153694B - Process for the production of ammonium persulphate from solutions by crystallization. : de en
  • DE661610C - Piston seal for high-compression internal combustion engines : de en
  • US2121133A - Furnace charging device : en
  • US2121253A - Heat exchanger and accumulator : en
  • CA374646A - Surface stabilizer : en fr
  • USD110217S - Design fob a dress : en
  • US2121388A - Conveyer and method : en
  • DE661741C - Method and device for charging high-frequency ovens : de en
  • CA374525A - Cellulose ester production : en fr
  • CA374533A - Speed coupler : en fr
  • US2121276A - Signal : en
  • AU361037A - Improvements in mincing machines : en
  • AT153630B - Airspace insulated, concentric high frequency cable. : de en
  • US2120960A - Cutting device : en
  • CA374511A - Wheel : en fr
  • US2121260A - Lighting construction : en
  • USD110229S - Design for a handle for a casket or : en
  • US2121355A - Mechanical toy : en
  • CA374630A - Grass processing : en fr
  • USD110151S - Design fob a lace tablecloth : en
  • AT153628B - Tap-less regulating transformer with AC control for three-phase system. : de en
  • AU104218B2 - Noise suppression means for signal receiving circuits : en
  • AT153638B - Installation switch with contact protection. : de en
  • AT153609B - Band filter with adjustable bandwidth. : de en
  • CA374577A - Wheel : en fr
  • CA374656A - Electrical steam trap : en fr
  • AU442337A - Device for ensuring the automatic regulation ofthe delivery of hydraulic mains : en
  • AT153648B - Method and device for stacking metal sheets. : de en
  • CA374592A - Extraction process : en fr
  • US2121111A - Vanity : en
  • CA374600A - Keyboard perforator and counter : en fr
  • GB487562A - A new or improved conveying plant : en
  • AU234137A - The manufacture of resin condensation products : en
  • US2121595A - Network distribution system : en
  • AU181137A - An improved metal rolling machine applicable forthe manufacture of electric conductors : en
  • CA374528A - Electric cable : en fr
  • CA374640A - Rock drill : en fr
  • DK54888C - Apparatus for placing text in the photographic membrane on finished films, especially tone films. : da en
  • AU235837A - Improvements in or relating to high permeability magnetic alloys : en
  • CA374618A - Metal oxidation preventing apparatus : en fr
  • AT153676B - Process for the chemical leaching of weak gaseous acids from gases. : de en
  • DE661498C - Device, especially for typewriters, for the automatic repetition of the step switching of the paper cart : de en
  • US2121009A - Stabilizing vinylidene chloride : en
  • US2121381A - Refrigerating device : en
  • US2121021A - Method of printing and article resulting therefrom : en
  • US2121454A - Machine for making sanitary pads : en
  • US2121124A - Switch : en
  • GB487706A - Improvements relating to fishing rod handles : en
  • AU8837A - Electron-optical system with network grid for television and like purposes : en
  • FR48731E - Country motor vehicle : en fr
  • GB487635A - Improvements in or relating to rotary manifolding or copying machines and a method of obtaining printed copies from a mirror script original : en
  • GB487785A - Process and apparatus for the catalytic treatment of hydrocarbons and the regeneration of the catalyst used therein : en
  • DE656538C - Process for the preparation of water-soluble compounds of gold with protein hydrolysates : de en
  • USD110165S - Design fob a lighting fixture : en
  • USD110172S - Design foe a device for cleaning sil : en
  • AU258937A - Method of producing binding agents : en
  • CA374526A - Vacuum cleaner : en fr
  • CA374541A - Wood pulp colouring matter removing process : en fr
  • CA374584A - Air conditioning system : en fr
  • FR829377A - Optical illusion attraction : en fr
  • GB487489A - Improvements in or relating to transmitting antenna systems : en
  • US2121171A - Barrel fastening means : en
  • US2121407A - Animal feeder : en
  • US2121538A - Dirt collector : en
  • US2120976A - Ticket issuing machine : en
  • FR48736E - Synchronous electric motor operating on several voltages : en fr
  • AU474937A - Improvements in window-sash sustainers : en
  • US2121169A - Process of contacting hydrocarbon vapors with ammonium pentachlorodizincate : en
  • US2121739A - Thread tensioning device for braiding machines and the like : en
  • GB487501A - Improvements in or relating to television and like transmission systems : en
  • GB487657A - Mechanical toy : en
  • DE661591C - Steel belt drive belt : de en
  • GB487446A - Improvements in or relating to antenna structures for wireless direction or course finding : en
  • GB487556A - Device for controlling the pressure medium of power operated change speed mechanism : en
  • GB487725A - Process for dyeing and printing acetate artificial silk : en
  • US2121611A - Naphthenyl esters of phosphorous acids : en
  • US2121622A - Juice extractor : en
  • AU109482B2 - Improvement in vacuum tubes and method of manufacturing : en
  • GB487650A - Improvements in or relating to variable condensers : en
  • GB487723A - The manufacture of new vat dyestuffs of the dipyrazole-anthronyl series : en
  • FR829364A - Device for qualitative and quantitative adjustment of the fuel mixture on two-stroke sweeping and supercharging engines : en fr
  • GB487471A - Improvements in hardening photographic emulsions : en
  • GB487741A - Improvements in and relating to ignition arrangements for gas heated apparatus : en
  • DE661638C - Method and apparatus for studying the structural properties of dough by stretching : de en
  • GB487625A - Improvements in or relating to iron or steel cubicles or compartments for containingalternating current electrical apparatus : en
  • GB487631A - Improvements in or relating to apparatus for delivering material in measured quantities into containers : en
  • GB487742A - Improvements in or relating to electrical stabilising devices comprising a pendulum : en
  • FR829328A - Direction indicators : en fr
  • US2121574A - Art of coating zinc : en
  • US2121742A - Game apparatus : en
  • US2121453A - Kitchen utensil : en
  • DE661552C - Process for the extraction of sulfur dioxide from gases : de en
  • DE661585C - Method for determining the concentration of oxidizing and reducing substances in solutions : de en
  • DE661587C - Method for determining the potassium content : de en
  • DK54879C - Furniture protector. : da en
  • GB487850A - Method and system for utilising tidal energy : en
  • FR829351A - Multi-effect flyer : en fr
  • FR829447A - Metal vapor discharge tube with solid electrodes, especially with activated electrodes : en fr
  • GB487606A - Improvements in the recovery of pure sodium cyanide : en
  • GB487845A - Improvements in or relating to torches, flashlights or the like : en
  • GB487869A - Improvements in or relating to waterproofs, mackintoshes and similar garments : en
  • US2121769A - Rail bond : en
  • GB487505A - Improvements in or relating to liquid fuel burners : en
  • GB487838A - Improvements in or relating to the formation of paper and like bottles, cups or containers and blanks therefor : en
  • CA374647A - Graded pattern : en fr
  • FR829310A - Improvements to window lifters : en fr
  • US2121672A - Method of making sinks : en
  • US2121330A - Benzene derivatives containing halogenated methyl groups and process of preparing them : en
  • US2121087A - Ship deck mortar-like adhesive plastic : en
  • US2121387A - Golf club : en
  • US2121390A - Quotation board : en
  • US2121392A - Choke valve control : en
  • DE661697C - Process for the treatment of petroleum residues with solid adsorbents : de en
  • US2120965A - Amalgamator : en
  • US2121743A - Liquid gauge : en
  • US2121395A - Door : en
  • US2121730A - Grinding machine-work loading and driving mechanism : en
  • US2121160A - Method of preparation and use of metallic oxides and solid fuels : en
  • US2121558A - Method of installing a tubular system : en
  • CA374532A - Gasoline tank : en fr
  • DE661626C - Metal mold, especially for centrifugal casting : de en
  • CA374619A - Market construction : en fr
  • US2121458A - Apparatus and process for aerating wort in yeast production : en
  • DE661523C - Arm sling : de en
  • GB487353A - Improved method of and apparatus for treating animal carcasses after slaughtering : en
  • AT153625B - Insulating compound for isolating electrical conductors, cables or the like and for potting cable fittings. : de en
  • AT153677B - Process for the production of dyes. : de en
  • DK54894C - Chalk holder. : da en
  • FR829355A - Method of applying short electromagnetic waves for the disintegration of mainly hydrocarbons : en fr
  • DE661483C - Coal hole covers for ships, especially fish steamers : de en
  • FR829363A - Improvements in bearing adjustment : en fr
  • GB487347A - Improvements in or relating to circular knitting machines : en
  • US2121446A - Torpedo : en
  • US2121666A - Governor controlled compression ignition internal combustion injection engine : en
  • DE661614C - Firearm with longitudinally movable breech block : de en
  • FR829309A - Flame retardant insoluble in water : en fr
  • GB487424A - Improvements in or relating to, electrical fuses of the rewirable type : en
  • FR829358A - Electrical contact plug : en fr
  • GB487698A - Improvements in lightning arresters : en
  • CA374595A - Anti-vibration mounting : en fr
  • US2121499A - Carbon holding device : en
  • DE661636C - Device for the automatic determination of vapors in gas and vapor mixtures : de en
  • FR48769E - Method and apparatus for milling sections of engine segments : en fr
  • DE661711C - Solidified stud bolt : de en
  • GB487849A - Receptacle or other container of thermic properties, especially conceived for the production of yoghourt : en
  • US2120987A - Process of producing orthopedic shoes and product thereof : en
  • US2121166A - Envelope moistener and sealer : en
  • FR48748E - Arrangement for the rapid adjustment of the operating variables of electric machines : en fr
  • DE661505C - Compaction of carbonic acid snow : de en
  • GB487652A - Improvements in the manufacture and application of polymerised alkylene oxides : en
  • GB487583A - Toilet article with long handle : en
  • GB487717A - An improved display showcard for advertisements and the like : en
  • CA374573A - Used oil reclaiming method : en fr
  • GB487733A - Improvements in apparatus for grinding, polishing or cleaning wire : en
  • US2121557A - Cement and process of making the same : en
  • GB487853A - Improvements in or relating to multi-cylinder fuel pumps for internal combustion engines : en
  • FR829400A - Bowling games, or the like, comprising a raceway arranged in two or more stages : en fr
  • DE661693C - Locking device for mechanically by hand and electrically by solenoid-controlled compressed air drives, especially for electrical switches : de en
  • CA374522A - Meat colouring and seasoning method : en fr
  • US2121273A - Heating and cooking unit : en
  • GB487767A - Improvements in and relating to wheel suspensions for vehicles : en
  • GB487637A - Improvements in or relating to hats for personal wear : en
  • US2121263A - Door lock : en
  • FR48718E - Method and apparatus for making elastic yarns : en fr
  • AT153619B - Drive belt. : de en
  • AT153633B - Flashlight. : de en
  • AT153671B - Sheet material consisting of a base and a cover made of a transparent cellulose film. : de en
  • DE661595C - Device for preventing unwanted positioning movements in hydraulic remote control devices on board aircraft : de en
  • US2121724A - aralkyl ethers of ethyl-phenol : en
  • AU104204B2 - Improvements in window-sash sustainers : en
  • AU104213B2 - The manufacture of resin condensation products : en
  • CA374563A - Solenoid : en fr
  • FR48732E - Corn starch manufacturing process : en fr
  • USD110228S - Design for a handle for a casket or : en
  • AU104173B2 - Improvements connected with automatic stokers for furnaces andthe like : en
  • US2121114A - Fish lure : en
  • USD110147S - Design fob a bottle : en
  • USD110212S - Design fob a dress : en
  • US2121500A - Combination container for cigarettes and matches : en
  • US2121507A - Flexible shaft coupling : en
  • AU104170B2 - Improvement in distillation of liquids : en
  • AT153606B - Morse pen for color and relief writing. : de en
  • AT153615B - Procedure for drying out damp rooms. : de en
  • AU104191B2 - Improvements in or relating to sewing machines : en
  • CA374645A - Frosted glass bulb : en fr
  • AT153685B - Paddle propeller. : de en
  • GB487736A - Flashlight lamp particularly for photographic purposes : en
  • CA374538A - Electric oven : en fr
  • DE661701C - Method and spool for winding freshly spun rayon threads : de en
  • US2121015A - Internal combustion engine cooling system : en
  • USD110198S - Design for a lighting fixture or : en
  • US2121032A - Detergent and wetting agent and process of producing the same : en
  • AU184537A - Improvements in or relating to parachute signal or illuminating devices : en
  • US2121288A - Wall structure for railway cars : en
  • AT153663B - Shirt pants. : de en
  • USD110141S - Design for a brooch pin or similar : en
  • CA374609A - Electric switch : en fr
  • CA374641A - Locomotive : en fr
  • US2121031A - Valve construction : en
  • US2121224A - Dumping vehicle : en
  • US2121303A - Double dowel bar expansion joint : en
  • DE661597C - Fish tape for window sashes, doors, etc. Like. With means for locking the wing in any angular positions : de en
  • FR829350A - Process for lining the bottoms of metal cans with a layer of plastic : en fr
  • US2121651A - Switch : en
  • AU104177B2 - Process for combating noxious organisms on plants and process for manufacture ofa product for this purpose : en
  • AT153680B - Device for the production of carbon disulfide. : de en
  • US2121103A - Frequency variation response circuits : en
  • AU374237A - Merchandise package usable as a periscope : en
  • DE661522C - Production of finely distributed titanium-containing precipitates : de en
  • US2121167A - Acid treatment of petroleum oils : en
  • US2121670A - Construction of fuselages, vehicle bodies, and the like : en
  • AT153656B - Device for heating and serving beverages. : de en
  • CA374582A - Magnetic powder production : en fr
  • US2121050A - Hydraulically controlled cement retainer : en
  • US2121530A - Door latch structure : en
  • US2121600A - Metal tube : en
  • US2120974A - Automatic frequency control circuits : en
  • US2121333A - Gaseous conduction device : en
  • USD110195S - Design fob a portable lamp : en
  • USD110169S - Design for a dress : en
  • USD110155S - Design for a box cover : en
  • AT153623B - Device for preventing fogging of the windshield of motor vehicles. : de en
  • FR48800E - New condensation products based on sulphite residual lye : en fr
  • FR829313A - Support for lamps of t. s. f. and others : en fr
  • FR829365A - Safety device against the fire of automobiles and airplanes, in the event of impact or overturning in any direction : en fr
  • US2121582A - Thermostat : en
  • USD110192S - Design for a lace tablecloth : en
  • FR48738E - Acid dyes for wool and their preparation process : en fr
  • US2121030A - Gland adjusting mechanism : en
  • AU254637A - Improvement in distillation of liquids : en
  • CA374496A - Carbocyanine dye : en fr
  • GB487533A - Improvements in or relating to the dressing of individual blocks of stone : en
  • US2121491A - Machine for decorating surfaces by stencil method : en
  • AT153697B - Automatic pulse generator. : de en
  • DE661537C - Schuettelrutschenverbindungen, in which the laterally protruding ends of the connection attachments are coupled by means of a hinged coupling bracket : de en
  • FR48791E - Muffler for internal combustion or combustion engine : en fr
  • GB487791A - Improvements in or relating to the wiping and levelling of shoe parts : en
  • GB487577A - Improved apparatus for relieving starting torque of heavey rotative machinery : en
  • GB487672A - Improvements in or relating to the extraction of dust from air and gases by sprayingwith liquids : en
  • DE661671C - Device on water turbines to reduce undesired increases in speed : de en
  • USD110208S - Design fob a display box : en
  • FR48794E - Pads improvements : en fr
  • GR7471B - Aseptic Fingerprint REMOVER. : el en
  • US2121408A - Artificial cellulosic material : en
  • DE661481C - Padded metal protection ring for milk bottles : de en
  • DE661456C - Arrangement for direct current energy transmission : de en
  • DE661729C - Fountain pen with a suction piston that can be moved by a steep screw spindle : de en
  • FR829325A - Can opener construction refinements : en fr
  • GB487342A - Improvements in or relating to electric switches : en
  • DE661500C - Device on machines for packing regularly or irregularly shaped objects : de en
  • GB487784A - Improvements in or relating to means for controlling internal conbustion engine power units : en
  • GR7462B - METHOD FOR CONSTRUCTION OF BUILDING STONES. : el en
  • DE661583C - Examination tubes for optical examinations at certain temperatures deviating from room temperature : de en
  • CA374623A - Metal expanding machine : en fr
  • CA374601A - Aluminium alloy : en fr
  • GB487848A - Improvements relating to high-frequency electric cables : en
  • FR829344A - Improvement in spark plugs : en fr
  • US2121305A - Manufacture of emulsions : en
  • US2121384A - Composite sponge : en
  • DE661525C - Container for make-up pencils : de en
  • DE661619C - Electric dry battery : de en
  • GB487679A - An improved method for the production of evacuated or partially evacuated vessels for electrical apparatus : en
  • US2121271A - Hydrocarbon burner : en
  • US2121653A - Fluid brake safety device : en
  • DE661747C - Cleaning device for gas lamp lines : de en
  • DK54878C - Sweeper. : da en
  • FR829308A - Improvements to gyroscopic devices giving vertical or artificial horizons : en fr
  • GR7470B - HOW TO TYPE SUBTITLES OF MOVIE MOVIES FOR THE USED TYPER. : el en
  • FR48741E - Coating for urban pavements and roads : en fr
  • FR829369A - Advanced ratchet and ratchets with applications : en fr
  • FR48737E - Process and device for the manufacture of glass, slag and other fusible products of the same kind : en fr
  • GB487661A - An improved method of treating timber : en
  • GB487772A - An improved liquid fuel for internal combustion engines : en
  • DE661703C - Device for separating and casting higher melting metals : de en
  • GB487523A - Improvements relating to valve mechanisms for controlling fluid operated machine tools : en
  • GB487373A - A means for supporting rolls of cloth or like material : en
  • GB487487A - Improvements in or relating to tracks for amusement devices : en
  • GB487766A - Improvements in and relating to the further treatment of cast annular metal articles : en
  • DE661660C - Screw spindle lock for gas protection doors and screens : de en
  • DE661753C - Nozzle for blowing air into containers filled with water, mainly for clear ice makers : de en
  • US2121511A - Closure for barrels and the like : en
  • US2121562A - Boiler : en
  • AT153699B - Process for the production of all kinds of velvet headgear. : de en
  • US2121100A - Convertible cot and duplex chair : en
  • US2121759A - Alloy : en
  • CA374653A - Shutter fastener : en fr
  • US2121374A - Ornamental display material : en
  • US2121073A - Disk fan : en
  • FR829341A - Device for making small electrical welds : en fr
  • GB487419A - Improvements relating to bumpers and like collision-guards for motor road vehicles : en
  • GB487429A - Improvements in or relating to the measuring of the thicknesses of leather and other materials or substances in sheet or strip form : en
  • GB487644A - Improvements in pleated skirts for ladies wear : en
  • CA374494A - Bottle washing machine : en fr
  • DE661676C - Process for the preservation of processed cheese : de en
  • GB487799A - Improvements in or relating to aeroplanes : en
  • US2121550A - Induction motor : en
  • FR829330A - Reinforcement liner for folded cuffs : en fr
  • GB487598A - Improvements in hydraulic brakes : en
  • USD110180S - Design fob a medicine bottle : en
  • US2121400A - Chain repairing apparatus : en
  • US2121604A - Foot deodorant pad : en
  • DE661625C - Radium work table : de en
  • FR48730E - Electro-mechanical device constituting remote-controlled luminous signaling elements : en fr
  • FR48771E - Method and device for the accumulation and transmission of heat for domestic uses : en fr
  • DE661755C - Device to keep the power output of a generator metadyne constant : de en
  • US2121033A - Improved detergent and wetting : en
  • US2121127A - Refillable fuse : en
  • US2121278A - Air conditioner : en
  • GB487339A - Device for receiving and retransmitting signals in long distance telephone lines : en
  • DE661569C - Periscope for stomach and intestinal examination : de en
  • US2121535A - Granular product and method of preparing the same : en
  • DE661602C - Resistance brake circuit for series motors : de en
  • FR48757E - Water-insoluble mono-azo dyes and method for preparing these dyes : en fr
  • GB487651A - Straight-through conductor type current transformer with insulation of ceramic material or pressed or pressed material, such as synthetic resin : en
  • GB487937A - Improvements in or relating to screw propellers : en
  • US2121197A - Screw extractor : en
  • US2121567A - Afocal opposed plane cylindrical anamorphosers : en
  • GB487656A - Method of and apparatus for automatically regulating the concentration or viscosity of liquids and suspensions : en
  • GB487464A - Improvements in and relating to processes for plating metals : en
  • US2121614A - Cylinder gauge : en
  • US2121721A - Process for manufacturing articles from latex : en
  • US2120991A - Pressure gauge : en
  • DK54880C - Holding and feeding device for circular saws with roller or sliding table. : da en
  • DE661488C - Method and device for sprinkling reaction towers exposed to filling bodies : de en
  • US2121059A - Device for paddle wheel propellers : en
  • US2121551A - Preparation of dinitriles : en
  • GR7475B - FINISHING IN ARTIFICIAL UTENSILS. : el en
  • FR48707E - Improved sheath device for remote controls by flexible or rigid cables : en fr
  • US2120975A - Carburetor : en
  • CA374652A - Flower exhibiting device : en fr
  • DE661716C - Device for electrical spot welding of curved seams : de en
  • GB487594A - Improvements in or relating to rotatable work or tool holders for metal cutting and like machines : en
  • GB487676A - Improvements in wire healds for weaving : en
  • US2121002A - Cement retainer and bridge plug for well casings : en
  • US2121316A - Shut-down device for well pumping engines : en
  • US2121371A - Trommel screen : en
  • US2121646A - Window ventilator : en
  • CA374607A - Electric switch : en fr
  • US2121154A - Handbag : en
  • US2121708A - Radiator construction : en
  • US2121735A - Automatic frequency control circuit : en
  • US2121698A - Device for drying the closing flaps of letter envelopes, bags, etc. : en
  • AU104226B2 - Improvements in plasticised polyvinyl acetal resins : en
  • GB487720A - Ladies shoe heel : en
  • US2121606A - Coating for ferrous alloys : en
  • US2121254A - Locking differential : en
  • US2121308A - Printing press : en
  • US2121545A - Art of refining edible oils, fats and analogous products : en
  • US2121327A - Delivery mechanism for use with printing machines : en
  • DE661504C - Device to prevent damage to heated kettles when pouring in cold water : de en
  • GB487618A - Liquid composition for erasing indian ink from tracing papers and tracing cloths : en
  • US2121034A - Apparatus for generating oxygen, especially for breathing purposes : en
  • DE1438693U - : de en
  • GB487713A - Process and apparatus for the carbonization of fuels in horizontal chamber ovens : en
  • US2121255A - Mirror suitable for map plotting devices : en
  • US2121360A - Electronic oscillator : en
  • US2121379A - Guard or protective device for trees or hydrants : en
  • GB487537A - Token-controlled liquid selling machine : en
  • GB487768A - Improvements in or relating to circuit arrangements employing electron discharge devices : en
  • GB487745A - Improvements relating to motor fuels : en
  • US2121452A - Hinge : en
  • DE661678C - Process for the production of a color negative which can be copied, which consists of three color separations, on a two-layer film : de en
  • USD110160S - Design for an ashtray : en
  • US2120986A - Closure structure : en
  • GB487452A - Improvements relating to oil circuit breakers : en
  • US2121417A - Mattress : en
  • FR829362A - Improvements to two-stroke engines with single cylindrical barrel distribution control : en fr
  • GB487681A - Improvements in or relating to the production of drying oil compositions from non-drying oils : en
  • GB487336A - Improvements in and relating to attemperating apparatus for draught beer and other liquids : en
  • AU233637A - Improvements in or relating to zinc plating : en
  • CA374568A - Refrigeration system absorber : en fr
  • US2121321A - Solenoid mechanism : en
  • US2121365A - Car dumping apparatus : en
  • US2121450A - Mold structure : en
  • GB487358A - An improved device for protection against gas or other material or organisms in the atmosphere : en
  • US2121599A - Vacuum pumping for mercury rectifiers : en
  • USD110140S - Design fob a pitcher top ob similar : en
  • US2120978A - Inking mechanism for printing machines : en
  • US2121155A - Basket-type floor merchandiser : en
  • US2121495A - Process of storing cotton and the like : en
  • US2121732A - Cellulose ether recovery : en
  • US2121351A - Slicing machine : en
  • US2121709A - Leather-like material and process of producing same : en
  • AU369937A - Process for combating noxious organisms on plants and process for manufacture ofa product for this purpose : en
  • DE661479C - Device for avoiding moiré when copying onto color grid support : de en
  • CA374514A - Shovel : en fr
  • GB487576A - Improvements relating to loud-speakers : en
  • GB487744A - Improvements in and relating to electrolytes and methods of making the same : en
  • GR7461B - ELECTRIC LAMP OF THREE INGLINE WIRE OF VARIOUS LIGHTING INTENSITY. : el en
  • US2121129A - Drive belt applying and removing tool : en
  • DE661557C - Process for the direct extraction of iron in addition to cement through the reduction of Meggener gravel decay : de en
  • FR829360A - Purge air limiter device in two-stroke turbocharged engines : en fr
  • GB487755A - Improvements in or relating to indicating instruments for aircraft : en
  • GB487728A - Improvements in or relating to the regeneration of water-softeners of the base-exchange type : en
  • US2121441A - Circuit breaker : en
  • US2121569A - Electric switch : en
  • DE661530C - Gas- and watertight connection of pipes, fittings, etc. like : de en
  • DE661694C - Device for measuring small DC voltages according to a compensation method using an interrupter device and a tube amplifier arrangement : de en
  • FR48795E - Rotary divider : en fr
  • GB487486A - Improvements in or relating to the attachment of cords, bands or the like to wrist-watch cases : en
  • GB487716A - Improvements in radio directive systems : en
  • US2121467A - Ringlet setting implement : en
  • US2121269A - Refrigerator car floor rack : en
  • US2121555A - Safety control brake : en
  • US2121612A - Current collecting device : en
  • USRE20769E - Manufacture of hydrogen peroxide : en
  • US2121405A - Ratchet gear mechanism : en
  • US2121480A - Pavement breaking equipment : en
  • US2120995A - Amplifying arrangement : en
  • GB487520A - Improvements in combinations of gasfilled electric discharge devices and materials adapted to be excited to luminescence by them : en
  • US2121104A - Running register : en
  • US2121539A - Fluid pressure brake : en
  • AU104175B2 - Improvements in or relating tothe production of pigmented compositions inorganic vehicles : en
  • AU104180B2 - Improved water sprinkler : en
  • AT153655B - Device for placing elastic caps on bottles. : de en
  • AT153605B - AC vibratory massage machine. : de en
  • US2121150A - Tone control system : en
  • USD110164S - Design for a lighting fixture : en
  • US2121518A - Process of purifying petrolatum : en
  • US2121585A - Time switch : en
  • USD110223S - Design for a dress : en
  • DE661708C - Drive for the needle shaft of straw presses : de en
  • FR48777E - Process for obtaining embossing dies with microscopic elements : en fr
  • GR7469B - STEAM BOILER GODEL TYPE OVEN. : el en
  • DE661507C - Steam trap : de en
  • AU547737A - Coin-freed vending machine, more particularly for icecream andthe like : en
  • DE661527C - Device for separating two fluids with different weights, such as cream and milk : de en
  • US2121020A - Manufacture of high grade sodium cyanide : en
  • US2121561A - Handkerchief pocketbook ensemble : en
  • CA374497A - Cyanine dye : en fr
  • AT153649B - Fluency and method of quickly reviewing documents by highlighting changes that have occurred in the document. : de en
  • US2121635A - Method of and apparatus for forming condensed carbon black : en
  • USD110184S - Design for a handbag : en
  • US2121096A - Manifold pack : en
  • US2121524A - Radio container and fastener for the same : en
  • AU239837A - Improvements in drenching and hypodermic syringes : en
  • US2121112A - Means for circulating fluid around drill bits : en
  • FR829353A - Device for troubleshooting electrical lines or their devices : en fr
  • GR7481B - SUPPLY PRODUCT AND METHOD FOR MAKING IT. : el en
  • CA374625A - Tire : en fr
  • US2121433A - Piston actuated switch : en
  • US2121345A - Rotative wing aircraft : en
  • DE1438638U - : de en
  • AT153692B - Protective arrangement in direct current systems with capacitors for radio interference suppression. : de en
  • DE661553C - Separation of carbon dioxide from gas mixtures with alkali carbonate solutions : de en
  • US2121210A - Process of and apparatus for isolating and treating the fibers of lechuguilla plant and related species : en
  • DE661617C - Feed water regulator for steam boiler : de en
  • DE661629C - Boiler with two optional risers : de en
  • GB487546A - Improvements in ophthalmic lenses : en
  • GB487612A - Improvements in emergency overspeed tripping gear : en
  • CA374634A - Combination wheel : en fr
  • US2121719A - Vegetable washer : en
  • CA374536A - Carbonaceous material distillation : en fr
  • US2121398A - Folding table : en
  • AU104190B2 - Improvements relating tothe permanent waving of hair : en
  • AT153640B - Machine tool, in particular lathe, horizontal boring mill or the like. : de en
  • AU104227B2 - Improvements in or relating to composite aircraft andthe transference of fuel therebetween : en
  • FR829391A - Heating body for hair waving devices : en fr
  • CA374608A - Electric switch : en fr
  • DE661601C - Axis counting device : de en
  • DE661761C - Reverse control : de en
  • DE661659C - Pusher arrangement, especially for locks of motor vehicles : de en
  • CA374571A - Rubber article manufacture : en fr
  • GB487659A - Improvements in or relating to front fork assemblies for motor cycles and like motorvehicles : en
  • US2121513A - Shoulder strap supporter : en
  • US2121341A - Treatment of artificial materials : en
  • DE661521C - Process for the production of an investment material for the insulation of the heating conductors of electrical heating devices : de en
  • US2121246A - Sample book : en
  • US2121027A - Process for cracking hydrocarbons : en
  • GB487566A - Earcap for telephone receivers or mouth-piece for microphones : en
  • FR48735E - Process for dyeing leather : en fr
  • DE661600C - Process for the production of resinous condensation products from formaldehyde, hydrogen sulfide, phenols and nitrogen-containing compounds : de en
  • US2121591A - Grid glow tube with zero temperature effect : en
  • GB487682A - Improvements in or relating to the mounting of the driving motor on the frame of a light motor cycle or the like : en
  • GB487622A - High frequency electric cable and process of manufacturing the same : en
  • IE15310L - Electric furnaces : en
  • CA374632A - Two colour printing machine : en fr
  • US2121208A - Production of monocalcium phosphate : en
  • US2121383A - Cosmetic container : en
  • AU398837A - COMPLETE SPECIFICATION Float controlled valve : en
  • US2121329A - Wire connecter : en
  • USD110177S - Design for a tray or similar : en
  • DE661721C - Ball joint coupling for trailers of motor vehicles : de en
  • US2121564A - Frozen comestible package : en
  • US2121218A - Condensing method and apparatus : en
  • GB487570A - Improvements in processes for preparing composite originals for use in the production of photogravure and rotagravure printing formes : en
  • AT153674B - Electric flashlight. : de en
  • AU104202B2 - Method of and means for regulating the density of fluids : en
  • US2121045A - Viscosity control : en
  • USD110207S - Design for a tray or similar article : en
  • CA374537A - Liquid contact switch : en fr
  • US2121542A - Manufacture of pen points : en
  • CA374557A - N-vinyl compound production : en fr
  • CA374569A - Suction cleaner : en fr
  • US2121457A - Vending machine : en
  • CA374587A - Carpet sweeper : en fr
  • DE661635C - Catalyst for gas concentration measurements in gas mixtures containing sulfur, e.g. B. flue gases : de en
  • DE661648C - Process for inserting the flexible binding agent into the hooks of two or more needles and machine for carrying out the process : de en
  • FR829359A - Underwear enhancements : en fr
  • FR829373A - Improvements in the treatment of wool and silk : en fr
  • US2121209A - Treatment of hydrocarbon oil : en
  • US2121638A - Electric discharge device : en
  • US2121377A - Target : en
  • US2121482A - Fluid flow control and silencer : en
  • FR48721E - Process for the protection of human life in the event of sudden gas attacks : en fr
  • USD110170S - Design for a teapot : en
  • US2121406A - Vermin eliminating device : en
  • US2121071A - Braid former : en
  • US2121357A - Signal system : en
  • USD110202S - Design for an adjustable v-block : en
  • USD110218S - Design for a coat : en
  • US2121378A - Apparatus for mechanically treating flax stalks and the like : en
  • DE661658C - Aseptic milk trading and measuring device with an aseptic ventilation device : de en
  • GB487390A - Improvements in and relating to remote control devices : en
  • IE15059L - Retractable gripper unit for vehicle wheels : en
  • US2121391A - Noncorrodible alloy articles and method of making same : en
  • US2121449A - 2-amino-8-hydroxy-quinoline and its salts and processes for producing the same : en
  • US2121157A - Preselector device for controlling sliding pinion gear boxes : en
  • US2121332A - Apparatus for the separation of saturated and unsaturated hydrocarbons : en
  • DE661760C - Riser brewing device : de en
  • GB487610A - Improvements in electron multipliers : en
  • US2121106A - Slidable partition : en
  • US2121285A - Fabric : en
  • AT153667B - Hot cathode. : de en
  • USD110219S - Design for a grave marker : en
  • US2121322A - Socket joint : en
  • AT153612B - At the same time, the letterhead forming the envelope. : de en
  • CA374603A - Snap fastener member : en fr
  • AT153662B - Method for hardening rigid caps and stiffeners provided in the shoe. : de en
  • DE661720C - Process for the conversion of warfare agents like ª ‰ ª ‰ -Dichlorodiaethylsulfids into harmless compounds : de en
  • US2121199A - Method of manufacturing vehicle wheels : en
  • US2121502A - Starch : en
  • US2121035A - Method and means of joining tubular members : en
  • US2121259A - Thermostatic elements : en
  • DK54889C - PTO shaft bearing for Motor Vehicles. : da en
  • GB487552A - Improvements in or relating to the manufacture of starch : en
  • US2120996A - Cystoscopic armamentarium : en
  • CA374581A - Electron discharge device : en fr
  • FR829361A - Improvements to two-stroke engines : en fr
  • GB487433A - Improvements relating to internally expanding brakes : en
  • DE661565C - Coreless induction furnace for operation with three-phase current : de en
  • DE661718C - High altitude breathing apparatus : de en
  • FR48776E - Device for attaching respiratory masks : en fr
  • GB487369A - Improvements in adjustable valve-actuating tappets : en
  • US2120998A - Coupled circuits : en
  • DE661712C - Automatic pipe rupture valve : de en
  • US2121161A - Brush : en
  • GB487498A - Improvements in or relating to roof-supporting means for use in mines and other underground workings : en
  • CA374616A - Sheathed article producing apparatus : en fr
  • USD110230S - Design for a corner ornament for a : en
  • US2121286A - Portable electrically controlled tapper : en
  • US2121573A - Expansion joint : en
  • DE661707C - Monitoring device on recording machines : de en
  • DE661588C - Method for the accelerated implementation of the colorimetric determination of the pH value of soil : de en
  • FR829316A - Magnesium alloys : en fr
  • USD110205S - Design fob a dress : en
  • US2120983A - Strainer for wells : en
  • US2121473A - Range : en
  • US2121592A - Constant regulation transformer : en
  • US2121064A - Production of citric acid : en
  • AU104196B2 - Improvements in or relating tothe control of background illumination in television transmitters : en
  • FR48793E - Manufacturing process of artificial products made of polyvinyl chloride : en fr
  • CA374520A - Meat curing mass : en fr
  • CA374570A - Lead and alloy refining process : en fr
  • US2121701A - Dental cleaning and massage device : en
  • USD110187S - Design for a shirt display stand : en
  • AT153626B - Device to display the wear and tear of carbon brushes in electric motors. : de en
  • USD110161S - Design for a lace tablecloth : en
  • US2121443A - Tearing means for wrappers of cellophane and the like : en
  • US2121460A - Wirelessly operated electrical decorative light : en
  • US2121262A - Organ key-control apparatus : en
  • USD110143S - Design for a brooch pin or similar : en
  • USD110171S - Design for a sandwich toaster or : en
  • US2121200A - Shovel : en
  • US2121382A - Jar : en
  • FR48701E - Improvement in crutches or tail wheels of aircraft : en fr
  • FR48759E - Rectifier adjustment device : en fr
  • DE661698C - Gas generator with evaporator for vehicles : de en
  • DK54872C - Buckle for garter belt. : da en
  • DK54883C - Apparatus for automatic rotation of irrigation pipes. : da en
  • US2121726A - Work supporting and rotating mechanism : en
  • US2121118A - Beverage container : en
  • CA374594A - Jar device : en fr
  • US2121471A - Agitator for washing machines : en
  • US2120970A - Carburetor : en
  • US2121261A - Spring shank for shoes : en
  • US2121589A - Emissive incandescent cathode : en
  • US2121678A - Footwear and sole material therefor : en
  • USD110225S - Design fob a play ball goal : en
  • US2121187A - Packing of cigarettes and the like : en
  • USD110175S - Design for a tray or similar : en
  • US2121565A - Hoisting apparatus : en
  • GB487677A - Improvements in or relating to the remote control of aircraft engines : en
  • US2121010A - Stabilizing vinylidene chloride : en
  • US2121028A - Cellulosic wrapping material : en
  • US2121718A - Golf club and implement handle : en
  • US2121029A - Germicides and processes for making the same : en
  • CA374597A - Tube push bench : en fr
  • US2121625A - Heating and cooling system : en
  • US2121151A - Oil for withstanding high bearing pressures and method of making the same : en
  • CA374560A - Combustion apparatus : en fr
  • AU365837A - Improvements in potato harvesters for tractor haulage : en
  • CA374655A - Variable air-cap electric control device : en fr
  • DE661652C - Process for the production of paper, cardboard or paperboard with a surface particularly suitable for printing : de en
  • AT153668B - Device for high-frequency traffic with dial-up calls, in particular via power lines. : de en
  • DE661574C - Ladder-like auxiliary device for placing carpets, runners, etc. on the knocking bar : de en
  • GB487567A - Improvements in and relating to an arm chair : en
  • DE645242C - Process for the O- and C-alkylation and acylation of phenols : de en
  • US2121039A - Insecticidal compositions comprising dinitro-cresols : en
  • GR7479B - DRAWING SYSTEM FOR DOORS AND WINDOWS. : el en
  • DE661705C - Nailless, wedged shuttering device for cast and stamped concrete masonry : de en
  • FR48733E - Device for continuous treatment of strips : en fr
  • GB487538A - Improvements in the lubrication of worm wheel bearings more particularly for kneading and mixing machines : en
  • DE661384C - Process for the preparation of esters of saturated or unsaturated oxyketones of the androstan-3-one-17-ol type : de en
  • AU104189B2 - Priming mixture : en
  • AU104198B2 - Improvements in or relating to high permeability magnetic alloys : en
  • AT153614B - Edge guide device for feeding fabrics into machines. : de en
  • AT153666B - Process for the production of indirectly heated cathodes for electrical discharge vessels with helical heating wires. : de en
  • CA374554A - Tire mould forming apparatus : en fr
  • US2121130A - Chair : en
  • GB487356A - Process of and furnace for heating fluids : en
  • GB487519A - Improvements in and relating to hydrogen and oxygen-using internal combustion engines : en
  • DK54886C - Cardboard container. : da en
  • GB487760A - Improvements in or relating to gear cutters : en
  • US2120972A - Converting system : en
  • US2121496A - Fiber bodies and method of producing same : en
  • USD110149S - Design for a bracelet : en
  • CA374642A - Churn : en fr
  • DE661739C - Process for the production of preparations from animal liver or kidney with increased anti-anaemic effect : de en
  • GB487472A - Improvements in means for dispensing lubricants and the like by gas pressure : en
  • AT153645B - Process for detecting small amounts of foreign gases in air or other gases. : de en
  • CA374504A - Circuit breaker : en fr
  • US2121423A - Testing device for wetting agents : en
  • US2121434A - Amplifier with oscillation producing adjustment : en
  • US2121122A - Ashtray : en
  • GB487599A - Improvements in and relating to resilient articulated couplings of rubber and metal parts : en
  • US2121080A - Sewing machine belt drive : en
  • US2121153A - Transfer cart : en
  • US2121003A - Cutting machine : en
  • US2121762A - Radio receiver dial apparatus : en
  • DE661642C - Process for operating gas machines operating with hydrogen : de en
  • FR829338A - Improvements in the preparation of insecticides and parasiticides : en fr
  • GB487783A - Improvements in or relating to supporting means for the boring and face-plate spindles in horizontal boring and milling machines : en
  • AU104183B2 - Improvements in and relating tothe manufacture of glass blocks : en
  • GB487729A - Improvements in or relating to infinitely variable wedge belt drives : en
  • DE661650C - Grinding device for wood pulp u. like : de en
  • GB487434A - Apparatus for dispensing beverages : en
  • US2121037A - Building construction : en
  • FR829312A - Improvements to shelters against aerial hazards : en fr
  • GB487740A - Improvements in cash registers : en
  • GB487541A - Improvements in or relating to searchlight or picture-projection installations : en
  • AU230037A - Expansible waistband for trousers and the like garments : en
  • CA374602A - Accounting machine : en fr
  • GR7464B - STUDENT INVERTABLE INK. : el en
  • DE661487C - Modulator for light emitting devices : de en
  • DE661572C - Multipart, collapsible cutlery : de en
  • GB487641A - Improvements in radio receiving systems : en
  • GB487427A - Improvements in apparatus for detecting cracks or flaws in iron or steel parts : en
  • GB487493A - Production of biological preparations : en
  • GB487852A - Improvements in and relating to metal rectifiers : en
  • GB487573A - Tube push bench : en
  • FR829381A - Board game : en fr
  • FR48710E - Direct overcurrent relay : en fr
  • GB487846A - Improvements in or relating to torches, flashlights or the like : en
  • FR829387A - Device for keeping a cabin or bucket rigorously vertical at the end of an arm and allowing it to make a full turn : en fr
  • GB487476A - Telegraph line circuits for teleprinter exchange systems : en
  • GB487705A - Improvements in the manufacture and production of compounds of the perylene series : en
  • GR7465B - HEATER - KITCHEN AFTER OVEN AND HOT WATER. : el en
  • GB487352A - A process for the production and purification of sexual hormone derivatives : en
  • DE661632C - Camera storage in a device for the photogrammetric evaluation of oblique images from aircraft : de en
  • US2121198A - Catalyst converter : en
  • FR829304A - Exploration device and detector of electrically conductive points in insulating material : en fr
  • DE661611C - Arrangement of liners in the cylinder body of liquid-cooled internal combustion engines, especially for aviation engines : de en
  • US2121007A - Motor vehicle : en
  • GB487512A - Improvements in or relating to the immunising of seed grain : en
  • FR48745E - Rail couplings : en fr
  • DE661503C - Process for the assimilation of alcohol or alcohol and carbonic acid by yeast or algae : de en
  • GB487467A - Improvements in welded compound girders : en
  • FR829331A - Improvements to airplanes and seaplanes and other similar devices : en fr
  • FR829372A - Machine for the production of plates, and more especially of lightweight construction plates using fibrous materials and binders : en fr
  • US2121105A - Running register : en
  • DE661675C - Arc welding electrode cover : de en
  • FR829318A - Method and device for sound camouflage : en fr
  • FR48796E - Improvements to valves for tires fitted with a deflation warning signal : en fr
  • GB487418A - Improvements relating to revolving doors : en
  • DE661409C - Crankless centrifugal piston internal combustion engine with rotating cylinders : de en
  • US2121279A - Trolling ballast : en
  • DE661627C - Suspension device for glass panes : de en
  • GB487778A - Improvements in or relating to electron accelerating apparatus : en
  • DE661524C - Frame setting for clamping the cover for containers, bags, etc. like : de en
  • GB487614A - Improvements in or relating to motor vehicles : en
  • FR829376A - Wheel control for motor vehicles : en fr
  • DE661476C - Process for the production of blanks or blanks for folding boxes printed on the inside and outside from a cardboard or paper web : de en
  • US2121251A - Invisible suspender : en
  • US2121581A - Reversing switch for dynamo-electric machines : en
  • DE661604C - Telecommunication cables without tensile reinforcement and without tensile support members : de en
  • GB487786A - Improvements relating to motor vehicles : en
  • DE661510C - Rod boom drive for printing machines : de en
  • DE661737C - Signal device for displaying unwanted changes in position of remote-controlled switches : de en
  • GB487492A - Improvements in folding ladders : en
  • US2121697A - Synthetic resins : en
  • AU236637A - Nut retaining means for bolt and nut connections : en
  • GB487613A - Improvements in self-centering spindles for spinning frames : en
  • FR829349A - Device for controlling the wheels of motor vehicles : en fr
  • GB487357A - Improvements in and relating to telephonic instruments : en
  • FR829385A - Fire hose drying tower : en fr
  • US2121092A - Change motion mechanism for jacquard looms : en
  • US2121159A - Telephone system : en
  • US2121188A - Fixture for filing articles : en
  • US2121364A - Operating valve for pneumatic hammers : en
  • DE661545C - Process for the production of plant phosphatide preparations : de en
  • CA374615A - Solution water removing process : en fr
  • US2121481A - Weighing scale : en
  • US2121036A - Method of plugging porous strata in wells : en
  • US2121293A - Wick for liquid fuel burners : en
  • US2121431A - Washing machine : en
  • GB487555A - Improvements in or relating to protective strip for felt base floor coverings : en
  • DE661630C - Process for drying out damp rooms by means of hot air moved by a fan : de en
  • US2121704A - Scaffold bracket : en
  • DE661526C - Lid for coffee brewing devices or the like. : de en
  • US2121194A - Welding rod : en
  • US2121331A - Substitution products of diphenylene oxide and process of preparing them : en
  • GB487761A - Improvements in or relating to protectors for the toes of boot and shoe uppers : en
  • US2121123A - Filtering means for liquid containers : en
  • US2121747A - Hose nozzle : en
  • GB487341A - Improvements in or relating to multiplying machines : en
  • CA374505A - Photographic sensitizer : en fr
  • DE661465C - Counter for tabulating machines : de en
  • DE661499C - Device for cooling rotating grinding disks : de en
  • US2121722A - Cotton cleaner : en
  • IE15082L - Tempering of glass : en
  • AU104179B2 - Improvements in or relating to the manufacture and use of catalysts for hydrogenation and like processes : en
  • GB487511A - Improvements in or relating to railway permanent way : en
  • GB487789A - Improvements in or relating to transfers : en
  • AU414937A - Improvements in and relating to glass blocks : en
  • FR829389A - Injection pump for starting internal combustion engines : en fr
  • US2121062A - Machine for cutting continuous lengths of rubber threads : en
  • US2121671A - Ignition starter control : en
  • DE661516C - Electric arc lamp for operation with carbon electrodes of different operating voltages : de en
  • US2121673A - Dispensing apparatus for liquefied gas : en
  • US2121691A - Resettable circuit interrupter : en
  • US2121239A - Fountain pen : en
  • USD110142S - Design for a brooch pin or similar : en
  • DE661489C - Vessel or apparatus material made of iron or iron alloys : de en
  • US2121438A - Device for the sharpening of razor blades : en
  • US2121256A - Sheave block construction : en
  • FR48789E - Process for obtaining magnetic properties of great value in weak magnetic fields, for magnetizable materials, containing nickel and iron : en fr
  • FR48744E - Electrical transformer for high voltage : en fr
  • CA374551A - Binding device : en fr
  • US2121610A - Distribution apparatus : en
  • US2121275A - Colloid mill : en
  • US2121637A - Electrode for electric discharge devices : en
  • GB487734A - Improvements in the manufacture of polymeric amides : en
  • GB487588A - Method for transmitting time-signals : en
  • GR7482B - FINISHING IN NUMBER OF RAILWAYS. : el en
  • GB487561A - Improvements in strap and buckle fastenings : en
  • GB487407A - Improvements in and relating to resilient supports for machines and the like : en
  • GB487751A - Improvements in or relating to copying paper : en
  • GB487617A - Improvements in or relating to bogies for railway carriages and like vehicles : en
  • CA12031S - Plaque : en
  • AU306737A - Collapsible stand forthe display of goods and similar purposes : en
  • GB487721A - Apparatus for dispensing measured quantities of milk : en
  • GB487394A - Combining or blending short staple fibres with an endless filament : en
  • US2121216A - Conveyer pole for drying machines or the like : en
  • GB487545A - Improved apparatus for testing arterial tension : en
  • US2121107A - Trap nest : en
  • US2121370A - Apparatus for treating tobacco : en
  • DE661651C - Sifter for fiber suspensions, such as paper pulp, cellulose, etc. like : de en
  • GB487410A - Improvements in or relating to heat transfer systems : en
  • DE661520C - Layered type photoelectric cell : de en
  • FR829392A - Spark plug improvements : en fr
  • GB487769A - Process for the production of multi-colour pictures having a sound record : en
  • GB487564A - Improvements in or relating to pipe couplings : en
  • FR829397A - Oil-impregnated capacitor, the dielectric of which is subjected to a certain pressure : en fr
  • FR48719E - Rigid beam composed of articulated elements : en fr
  • US2121603A - Method of producing selenium rectifiers : en
  • GB487851A - Coating process and product : en
  • US2121745A - Composition of matter and method : en
  • US2121665A - Butt welding device for metal strips : en
  • FR829394A - Process and devices for the manufacture of ribbons or yarns of glass fibers or other materials : en fr
  • DE661575C - Dish washing machine with coats that can be moved towards one another, overlap one another and are provided with side openings : de en
  • GB487430A - Improvements relating to cartridge fuses : en
  • AU104210B2 - Improvements in or relating to zinc plating : en
  • DE661509C - Rotary printing machine for printing on sheets, paper webs or the like. : de en
  • US2121536A - Aircraft sustaining rotor : en
  • USD110179S - Design for a candelabra : en
  • US2121005A - Process of producing textiles with calender finish permanent to washing and product thereof : en
  • US2121310A - Mounting means for lamps in headlights of automobiles : en
  • FR829368A - Armchair : en fr
  • GB487638A - Improvements in or relating to triturating machines : en
  • GB487376A - Improved freight transferring apparatus : en
  • GB487597A - Improved process of welding zinc, more particularly by gas fusion welding : en
  • IE15083L - Tempering of glass : en
  • DE661674C - Process for the preparation of oxyalkylaminonitrobenzenes : de en
  • GB487458A - Improvements in and relating to yarn winding frames : en
  • USD110174S - Design for a lamp base or similar : en
  • GB487459A - Improvements in or relating to electric indicating systems for dirigible craft : en
  • DE661473C - Device for straight flame cutting of sheet metal that is not perfectly flat : de en
  • US2121174A - Window screen : en
  • US2121014A - Visual indicator for ascertaining conditions of the circulatory system : en
  • USD110224S - Design for a dress : en
  • US2121749A - Mower : en
  • USD110148S - Design for a combined frozen con : en
  • GB487581A - Improvements in and relating to electric fans : en
  • GB487750A - Improvements in or relating to electric radiation hot plates : en
  • DE661578C - Switching mechanism for vertical and horizontal full gates : de en
  • FR829336A - Buoyancy device for vehicles, in particular for airplanes : en fr
  • AT153687B - Actuating device for wire-controlled railway safety systems or the like. : de en
  • DE661654C - Device for copying sound films : de en
  • GB487361A - Device for the production of a rotary or conveying movement : en
  • GB487553A - A method of manufacturing dense castings in pressure casting machines from alloys having a high melting point : en
  • US2121119A - Gripping mechanism : en
  • GB487507A - Improvements in and relating to the manufacture and production of staple fibre : en
  • GB487636A - Means for piercing the lid of cans and the like : en
  • CA374546A - Thermionic valve : en fr
  • US2121758A - Disappearing door handle for automobiles : en
  • DE661668C - Full jacket centrifuge for the separation of solid components from liquid material : de en
  • GB487444A - Air heater for warming the interior of buildings : en
  • DE661662C - Thin-walled shoe heel made of synthetic resin : de en
  • GR7473B - EXTRACTION METHOD AND EXTRACTING MACHINE. : el en
  • DE661421C - Automatic brake for the runner of electric motors, especially for driving shutters or the like. : de en
  • DE661621C - Gas or vapor-filled discharge vessel : de en
  • AT153673B - Flue pipe superheater. : de en
  • CA374547A - Television reproducing apparatus : en fr
  • US2121193A - Fracture clamping apparatus : en
  • US2121426A - Mop cleaner : en
  • USD110216S - Design for a dress : en
  • US2121478A - Mechanical vibrator and expansion device for transmission lines : en
  • CA374614A - Textile process and product : en fr
  • CA374531A - Palladium processing : en fr
  • US2121234A - Spool : en
  • USD110220S - Design for a dress : en
  • USD110190S - Design fob a knitted fabric : en
  • US2121084A - Production of beryllium : en
  • US2121207A - New basically substituted acridine compounds : en
  • US2121041A - Marked material and process of producing the same : en
  • US2121044A - Cutter chain : en
  • DE661613C - Sealing device for motor vehicle doors : de en
  • US2121024A - Radio transmitting and receiving system : en
  • US2121289A - Balance adjustment for tennis rackets : en
  • US2121554A - Closure for receptacles : en
  • CA374628A - Cooking apparatus mechanism : en fr
  • US2121181A - System for transporting freight : en
  • US2121547A - Starter clutch for internal combustion engines : en
  • AU434237A - Machine forand method of embossing and slotting blanks : en
  • US2121501A - Hypochlorite composition : en
  • US2121643A - Elastic fluid turbine arrangement : en
  • DE661581C - Bathroom scales with a lighting device that makes the weight display visible : de en
  • DE661689C - Threshold for excavator tracks : de en
  • DE661586C - Method and device for measuring the hydrogen ion concentration in salt solutions : de en
  • GB487712A - Improvements in photographic objectives : en
  • AT153607B - Set up on electron tubes. : de en
  • CA374543A - Radio navigation signalling system : en fr
  • US2121723A - Aralkyl ethers : en
  • AT153602B - Device for showing pictures, photographs or the like. : de en
  • US2121593A - Cooling and mounting of collectors for unipolar generators : en
  • US2121267A - Rotary, straight-pull jar assembly : en
  • US2121148A - Reactance independent of temperature : en
  • US2121280A - Manufacture of steel or other metal billets, bars, or the like : en
  • US2121751A - Cutting-off wheel : en
  • US2121099A - Mirror device : en
  • US2121146A - Wheel : en
  • US2121465A - Smelting furnace : en
  • CA374605A - Cable plug in sleeve : en fr
  • AT153647B - Front cart for plows with a detachably attached sowing or potato planting device. : de en
  • GB487855A - Improvements in and relating to stable emulsions of water with liquid or liquefiablesubstances which are immiscible with water, and to preparations comprising the same,and to methods of making the said emulsions and preparations, and to applications ofthe said emulsions and preparations, and to articles of manufacture, or structures, when comprising, or treated with, the said emulsions or preparations : en
  • US2121572A - Spectacle frame joint : en
  • AU139037A - Improvements in or relating to sewing machines : en
  • US2121428A - Attachment for mowing machines : en
  • US2121510A - Cable tie or fastening : en
  • US2121559A - Method of making gold leaf and product thereof : en
  • DE661566C - Electrical resistance seam welding process with modulation of the welding current : de en
  • FR829337A - Liaison system between the various members of a military formation : en fr
  • US2120988A - Screen washer : en
  • USD110188S - Design for a knitted fabric : en
  • CA374561A - Steam generator : en fr
  • AU104195B2 - Improvement in selectivity control : en
  • CA374579A - Box : en fr
  • US2121409A - Two-stroke internal-combustion engine : en
  • US2121740A - Skid-preventing device for use with vehicle tires : en
  • CA374529A - Sanding machine : en fr
  • AT153601B - Secondary electron tube. : de en
  • DE661606C - Device for making the afterglow of the coals of a headlight arc lamp invisible after the headlight has been switched off : de en
  • US2121190A - Collapsible filing cabinet : en
  • US2121474A - Bait : en
  • US2121605A - Electric traction motor control system : en
  • DE661549C - Slide lock for the heating channels of baking, drying and similar ovens : de en
  • US2121173A - Vegetation bearing cellular structure and system : en
  • US2121241A - Flushing mechanism of tanks for water closets : en
  • DE661684C - Process for dyeing leather : de en
  • CA374604A - Glass forming machine : en fr
  • DE661680C - Rowing machine for exercise purposes : de en
  • US2121117A - Electronic timer : en
  • US2121232A - Container valve : en
  • US2121243A - Electrical circuit breaker : en
  • US2121315A - Valve washer : en
  • US2121424A - Liquid measuring and dispensing device : en
  • AT153631B - Incandescent lamp, discharge tube or the like. : de en
  • AT153654B - Process for the production of wooden paving slabs. : de en
  • US2121682A - Filler rod holder : en
  • US2121012A - Stabilizing vinylidene chloride : en
  • US2121306A - Method for the deoxidation of technically pure zinc : en
  • US2121314A - Reflecting electric lamp : en
  • US2121410A - Packing case : en
  • US2121761A - Hot cathode tube with metal envelope : en
  • IE15109L - Bacterial degradation of organic matter; fertilisers : en
  • USRE20771E - Gunner compartment : en
  • US2121529A - Art of forming and distributing charges for internal combustion engines : en
  • US2121707A - Fluid reaction device : en
  • US2121121A - Transporting and dumping vehicle : en
  • US2121358A - Tooth brush : en
  • US2121711A - Condiment holder : en
  • US2121753A - Window defroster : en
  • DE661746C - Aircraft wing : de en
  • DE661759C - Respiratory system : de en
  • US2121485A - Aqueous solutions of soluble heavy metal salts of sulphonated aliphatic compounds : en
  • AU437437A - Improvements in or relating tothe preparation of magnesium : en
  • USRE20767E - Image broadcasting system : en
  • GB487575A - Improvements in and connected with brackets for supporting hats and other articles : en
  • US2120962A - Twin bed couch : en
  • GB487348A - Improvements in or relating to buttons having interchangeable parts bearing initialsor other designs : en
  • CA374612A - Key : en fr
  • FR829305A - Automatic spade system : en fr
  • GB487653A - Clothes suspender with hollow shoulder parts for moth-killing and air-improving substances : en
  • FR48705E - Machines to reproduce wooden heels : en fr
  • US2121026A - Process for refining and converting oils : en
  • USD110197S - Design for a toilet dressing : en
  • GB487600A - Improvements in or relating to the performing of a wiping and pressing operation upon a shoe part : en
  • DK54884C - Pneumatic Control Unit. : da en
  • GB487510A - A method of manufacturing weather-resistant signs : en
  • GB487596A - An improved auxiliary material for use in welding and brazing : en
  • DE661699C - Circular knitting machine : de en
  • GB487337A - Manufacture of tri-(4-butadienyl-1.2)amine : en
  • GB487611A - An improved machine for cutting spectacle lenses, watch glasses and like pieces of glass in accordance with a pattern or former : en
  • US2121675A - Combination fitting for gas dispensing systems : en
  • DE661751C - Periodic absorption refrigeration machine : de en
  • DE661542C - Transformer for current regulation on the secondary side by means of magnetic shunt with adjustable magnetic resistance : de en
  • FR48780E - Automatic circuit breaker : en fr
  • DE661735C - Baking powder acid carrier : de en
  • DE661486C - Suddenly acting drive for a blade of a safety razor that is moved back and forth by a motor : de en
  • FR48797E - Process for preparing fibers in corrugated viscose rovings : en fr
  • US2121204A - Bearing metal alloy : en
  • GB487355A - Improvements in the treatment of synthetic resins and materials containing same : en
  • DE661609C - Process for the production of high quality, oxygen-free copper : de en
  • US2121023A - Method of moistureproofing wrapping materials : en
  • DE661560C - Insert with switch and socket to be built into a normal metal flush-mounted box intended only for one installation device : de en
  • US2121177A - Electric fan : en
  • US2121621A - Fruit juice extractor : en
  • US2120989A - Mechanical drive : en
  • US2121178A - Spark plug : en
  • DE661639C - On a tractor by means of a two-legged bearing piece pivotable milling tail : de en
  • GB487754A - Improvements in and relating to devices for cleaning the barrels of fire-arms : en
  • GB487393A - Improvements in and relating to apparatus for carrying out electrolysis of fused electrolytes : en
  • GB487534A - Improvements in or relating to infantry mortars : en
  • FR48711E - Integral refining process of vegetable, mineral and all fatty substances : en fr
  • GB487764A - Improvements in heat radiating combustion flues for furnaces : en
  • DE661656C - Steering gear for caterpillar vehicles with a differential gear connected between the drive wheels : de en
  • US2121647A - Ring traveler : en
  • FR48714E - Installation for drying air and other gases : en fr
  • GB487521A - Improvements in or relating to photographic cameras having base telemeters : en
  • FR48788E - Safety lock nut : en fr
  • GB487366A - Improvements in processes for extracting oil from seeds or oil cakes by means of solvents : en
  • GR7467B - VERTICAL TURBINE. : el en
  • GB487363A - Improvements in or relating to freight containers : en
  • GB487395A - Arrangement for the production of alternating pressures with phase displacement in the vessels of the two blood circulations of the human body or the bodies of animals : en
  • GB487540A - Process for manufacturing hollow bodies, and products resulting from this process : en
  • US2121403A - Wire article : en
  • DE661589C - Smoke densitometer : de en
  • FR829379A - Process for the extraction of fats, oils, fish oils and albuminous products, starting from outlets, and particularly waste, animals or plants : en fr
  • FR829388A - Protective device operating in the event of an oil current and in the event of gas being released, for electrical appliances filled with oil : en fr
  • FR829371A - Improvements to vehicle wheel assemblies : en fr
  • GB487436A - Coal feeding device for furnaces : en
  • US2121626A - Clutch engaging and disengaging mechanism : en
  • CA374516A - Formal ester : en fr
  • CA374613A - Cam mechanism : en fr
  • GB487447A - Improved braking devices for the tuning controls of radio receiving sets : en
  • AU233237A - Improvements in or relating tothe control of background illumination in television transmitters : en
  • CA374598A - Engine electric power unit : en fr
  • GB487782A - Improvements in and relating to prepayment mechanism for meters : en
  • US2121000A - Safety razor : en
  • US2121413A - Automatic releasing device : en
  • US2121754A - Defroster : en
  • US2121225A - Film holder : en
  • US2121339A - Shock absorber : en
  • FR48754E - Capacitor : en fr
  • GB487793A - Improvements relating to regulator valve apparatus for locomotives : en
  • GB487939A - Improvements in or relating to the manufacture of alloys : en
  • GR7468B - DATOMOGRAPHER. : el en
  • US2121268A - Valve for well testing tools : en
  • US2121477A - Range burner mounting : en
  • US2121526A - Trimming mechanism for sewing machines : en
  • US2121245A - Tandem wheel trailer : en
  • US2121008A - Acoustic translating device : en
  • US2121247A - Sheet metal shears : en
  • US2121425A - Cotter pin : en
  • US2121475A - Coating composition : en
  • GB487645A - Process for rendering textiles water-repellent and products therefrom : en
  • AU104219B2 - Improvements in and relating tothe erection of building structures : en
  • FR48739E - Process for preparing hydrocarbons of interest and their derivatives from carbon monoxide and hydrogen : en fr
  • GB487465A - Improvements in brackets, coat hooks, hinges and other articles which are secured inwalls and doors by means of screws : en
  • FR829393A - Glass fiber treatment process : en fr
  • GB487426A - Adjustable foot-rest : en
  • GB487551A - Toilet paper holder : en
  • GB487627A - Improvements in thermionic multi-grid valves : en
  • GB487738A - Tethering device : en
  • US2121236A - Machine for making cans : en
  • GB487688A - Improvements in or relating to cameras and control apparatus therefor : en
  • FR829317A - Process for the production of light hydrocarbons by selective hydrogenation in the absence of catalysts : en fr
  • DE661757C - Circular knitted stocking : de en
  • GB487435A - Improvements in and relating to furnace constructions : en
  • FR829311A - Safety clip usable in particular on bracelets, necklaces or the like : en fr
  • DK54873C - Procedure for the treatment of man-made fibers with the aim of making them suitable for dyeing with chromium dyes. : da en
  • GB487550A - A device for use in gas pruifying plants : en
  • GB487658A - Improvements in and relating to electric switches operated by cams : en
  • DE661710C - Cooling of aircraft engines with a hot cooling circuit : de en
  • GB487375A - Improvements in or relating to gauges : en
  • CA374599A - Two-colour telegraph ribbon mechanism : en fr
  • US2121319A - Air-cooled muffler : en
  • US2121472A - Oxidation products of octyl cyclohexanol : en
  • US2121523A - Clothes washing machine : en
  • US2121737A - Variable reactance modulator circuit : en
  • AT153683B - Motor vehicle powered by generator gas. : de en
  • AU104205B2 - Coin-freed vending machine, more particularly for icecream andthe like : en
  • FR829367A - New whitewash : en fr
  • US2121532A - Feed mechanisms for sewing machines : en
  • US2121248A - Brake hanger retainer : en
  • US2121265A - Weeder : en
  • US2121325A - Method for solvent extraction of oil : en
  • US2121669A - Peening tool : en
  • US2120971A - System and method of determining distance : en
  • AT153643B - Process for the production of link chains, in particular of bracelets or the like. : de en
  • US2121108A - Hot air furnace : en
  • US2121674A - Liquefied gas storage and dispensing system : en
  • US2121683A - Calculating machine : en
  • AU495137A - Improvements relating to appartus for casting metal : en
  • US2121134A - Logging rig : en
  • US2121185A - Candy : en
  • USD110204S - Design for an alphabet fob forming : en
  • AU104192B2 - An improved metal rolling machine applicable forthe manufacture of electric conductors : en
  • US2120973A - Electrical coil : en
  • AU104212B2 - Improvements in or relating to the electrodeposition of zinc : en
  • AT153610B - Magnifying device. : de en
  • CA374651A - Molten glass feeding apparatus : en fr
  • AT153613B - Scaffold clamp. : de en
  • US2121615A - Gas or vapor filled discharge device : en
  • AT153700B - Process for the production of pure alcohol. : de en
  • US2121479A - Machine for finishing gears : en
  • GB487667A - Improvements in upsetting mechanism : en
  • GB487787A - Improvements in or relating to the manufacture of mosaic screens for television and similar purposes : en
  • GB487572A - Improvements in or relating to optical projection apparatus, in particular for sub-standard kinematograph films : en
  • GB487687A - Improvements in or relating to tuning controls for radio receivers : en
  • GB487714A - Improvements in the manufacture and production of water gas : en
  • USD110201S - Design for an ice cream dipper or : en
  • USD110214S - Design for a drawer pull : en
  • AT153693B - Process for the production of hydrogen peroxide. : de en
  • GB487529A - An improved device for preventing ingress or egress of liquid into or from a vessel : en
  • AT153651B - Method and device for continuously dividing filled sausage casings. : de en
  • US2121455A - Universal coupling : en
  • USD110234S - Design fob lace : en
  • DE661513C - Device to prevent frequency or speed deviations : de en
  • US2121692A - Method for closing cracks in castings and the like : en
  • USD110209S - Design for a jacket : en
  • DE661502C - Mining machine with a belt conveyor : de en
  • DE661531C - Flush valve : de en
  • DE661623C - Dropper bottle with pouring opening on the edge of the mouth : de en
  • GB487439A - Improvements in and relating to the production of pig iron : en
  • DE661653C - Process for the rapid removal of the photographic and adhesive layer from films and film waste in one operation : de en
  • GB487480A - Improvements in or relating to domestic cookers, ovens, cabinets or other containers : en
  • US2121644A - Electric furnace regulator system : en
  • US2121681A - Sheet material cutter : en
  • AU49737A - Improvements in centrifugal driers : en
  • GB487421A - An improvement in or relating to yarn and like winding machines employing reciprocating traverse guides : en
  • CA374553A - Glass working press : en fr
  • CA374566A - Refrigerator fluid circulation system : en fr
  • CA374593A - Solvent extraction process : en fr
  • US2121152A - Vehicle toy : en
  • GB487401A - Improvements in bearings : en
  • GB487757A - Improvements in liquid magnetic compasses : en
  • DE661508C - High pressure steam generator with indirect heating : de en
  • US2121706A - Internal combustion engine operated drill : en
  • DE661584C - Liquid density meter : de en
  • GR7463B - NEW CONSUMED FUEL AND METHOD OF MAKING IT. : el en
  • GB487595A - A method of treating water so as to prevent the effects of hardness : en
  • FR829315A - Improvements to so-called rotating coil switching devices : en fr
  • GB487586A - Improvements in and relating to coin actuated amusement and vending apparatus : en
  • GB487840A - Improvements in and relating to plate heat exchangers for fluids : en
  • DE661593C - Release device for grinding machines : de en
  • DE661763C - Wooden plate made from a series of simple hollow ribs : de en
  • FR48743E - Compensating master cylinder : en fr
  • FR829390A - Orthopedic device : en fr
  • GB487474A - Improvements in or relating to adjustment devices for exposure objectives of photographic cameras : en
  • GB487495A - Improvements in or relating to the production of show-cards, tickets and the like : en
  • GB487632A - Improvements in fasteners for power transmission belts, conveyor belts and the like : en
  • FR48783E - Improvements relating to the attenuation of inertia effects in hydraulic pipelines : en fr
  • GB487746A - Improvements in and relating to electrical plug and socket devices : en
  • FR48763E - Mechanical seals : en fr
  • GB487391A - Improvements in and relating to electric switches : en
  • GB487578A - Improvements in or relating to electric cables : en
  • US2121624A - Flexible conduit connection : en
  • FR829380A - Improvements to orthopedic devices to correct deviations of the spine : en fr
  • FR48742E - New chemical compounds, their preparation process and their applications in the manufacture of artificial fibers, sheets, films, etc. : en fr
  • FR829384A - Thread flow regulator device for weaving terry cloths : en fr
  • US2121299A - Sealing means : en
  • GB487854A - Improvements in and relating to the production of metal coatings on objects : en
  • GB487859A - Improvements in or relating to extrusion machines : en
  • FR48784E - Socket holder with automatic temperature adjustment for electric heater : en fr
  • FR829352A - Improvements to measuring devices for liquids : en fr
  • GB487579A - Improvements relating to hinges for gas-tight doors : en
  • GB487640A - Improvements relating to display devices : en
  • USD110139S - Design fob an electric bread toaster : en
  • GB487590A - Improvements in or relating to tail stock for lathe : en
  • GB487603A - Improvements in or relating to decorative papers : en
  • GB487624A - Improvements in and relating to fluorescent material and methods of manufacturing the same : en
  • FR48725E - Roulette and special carpet holder table perfecting the game of poker, thirty and forty and other games : en fr
  • DE661665C - Method and device for the automatic alignment of cigarettes u. like : de en
  • US2121632A - X-ray tube : en
  • AT153696B - Water fighting game. : de en
  • GB487526A - Improvements in or connected with fire escapes : en
  • GB487773A - Improved method and machine for making cigar bunches : en
  • US2121601A - Regulating apparatus : en
  • US2121694A - Rod line carrier : en
  • CA374507A - Polymeric n-vinyl compound production : en fr
  • GB487686A - Improvements in or relating to engine valve gear, particularly locomotive valve gear : en
  • FR48749E - Gear change control device for driving aircraft engine boosters : en fr
  • US2121756A - Mobile merchandising device : en
  • AU255538A - Improvement in vacuum tubes and method of manufacturing : en
  • GB487571A - Improvements in and relating to the production of electrotypes for multicolour printing : en
  • USPP281P - Snapdragon : en
  • DE661677C - Device for the production of paper bodies with a conical shape at one end : de en
  • DE661724C - Waving arm for direction indicators and overtaking indicators of motor vehicles : de en
  • FR829345A - Air conditioning device : en fr
  • GB487731A - Improvements in a power-driven manually guided lawn mower : en
  • GB487835A - Manufacture of improved pigments : en
  • AU383837A - Improvements in or relating to the manufacture and use of catalysts for hydrogenation and like processes : en
  • CA374535A - Brake control mechanism : en fr
  • US2121648A - Room cooler : en
  • CA374606A - Electric switch : en fr
  • US2121094A - Back-set metal sash : en
  • US2121335A - Method of making a varnish base : en
  • US2121296A - Miner's cap : en
  • US2121125A - Belt and belt connecter : en
  • US2121752A - Cutting tool : en
  • US2121230A - Locking means : en
  • US2121304A - Garment : en
  • US2121715A - Trousers hanger : en
  • US2121018A - Ceramic : en
  • US2121201A - Finger ring : en
  • AT153679B - Device for carrying out reactions on catalytically active metal fabrics. : de en
  • AT153632B - Electric power transmission, in particular for diesel-electric vehicles. : de en
  • AU104200B2 - COMPLETE SPECIFICATION Float controlled valve : en
  • DE661570C - Method and device for processing glass tubes and rods : de en
  • GB487409A - Improvements in producing fast dyeings on mixed fabrics of wool and viscose artificial silk : en
  • GB487559A - Improvements in electrical water heaters : en
  • GB487710A - Improvements in or relating to instruments for determining the roughness of surfaces : en
  • GR7477B - AIR ROOF BUILDING FOR FRAMES AGAINST GAS AREAS, FOR EXAMPLE FOR FRAMES OF WINDOW DOORS. : el en
  • US2121205A - Blueprint, photo-vellum, and similar sensitized cloths : en
  • US2121343A - Treatment of textile materials : en
  • USD110186S - Design for a brush : en
  • AT153650B - Process and binding and / or sintering of ceramic masses. : de en
  • FR829334A - Oil-cut rotary type switch : en fr
  • GB487522A - Improvements in and relating to scoops and cinder sifters : en
  • GB487839A - A method of giving mica a coating of metal : en
  • AT153621B - Heat protection cover for flashing or the like. : de en
  • AT153657B - Atomizing burner. : de en
  • DE661511C - Electrical flush-mounted rotary switch : de en
  • US2121662A - Incineration of sewage sludge and other waste materials : en
  • DE661687C - Radially loaded counter-rotating turbine : de en
  • CA374650A - Electric heating element : en fr
  • US2121652A - Take-up mechanism for sewing machines : en
  • USD110181S - Design for a textile fabric : en
  • CA374643A - Elevator classifier : en fr
  • US2121184A - Telemetric broadcasting and recording apparatus : en
  • AU236737A - Noise suppression means for signal receiving circuits : en
  • CA374572A - Fibre screen separator : en fr
  • GB487475A - An improved method of constructing sheet metal floats for fishing nets and the like : en
  • GB487479A - Improvements in cam gearings for calculating apparatus : en
  • GB487482A - Improvements in and appertaining to supports or carriers used in electro-plating baths, and protective coverings therefore : en
  • GB487776A - Improvements relating to motor fuels : en
  • US2121484A - Apparatus for applying a plurality of articles to a backboard : en
  • US2120969A - Production of diaryl amines : en
  • US2121470A - Machine for manufacturing sized sheets of flattened expanded metal : en
  • US2121684A - Artificial leather : en
  • US2121297A - Book : en
  • US2121361A - Office equipment cleaning process : en
  • US2121629A - Battery terminal clamp : en
  • AT153635B - Cable for pupinized portable telecommunications systems. : de en
  • US2121287A - Composite set : en
  • AU104184B2 - Machine forand method of embossing and slotting blanks : en
  • US2121336A - Bifocal eyeglass mounting : en
  • US2121768A - Oscillatory valve for internal combustion engines : en
  • DE661634C - Process for the continuous measurement and registration of easily absorbable components in gas mixtures : de en
  • US2121228A - Safety razor : en
  • US2121618A - Preservation of rubber : en
  • CA374637A - Hoisting mechanism : en fr
  • DE661573C - Vacuum cleaner for blower and suction air operation : de en
  • US2121250A - Device for the massage of the foot muscles : en
  • CA374596A - Steel tube manufacture : en fr
  • AU104188B2 - Improvements relating to appartus for casting metal : en
  • GB487747A - Improvements in or relating to devices for holding cleaning strips, tools or the like : en
  • USD110158S - Design for an electric shaver : en
  • US2121404A - Method of coating sheet metal cans : en
  • US2121586A - Motor control system : en
  • US2121512A - Weatherproof panel structure and method of making same : en
  • US2121763A - Target trap : en
  • GB487344A - Improvements in or relating to brick making machines : en
  • US2121516A - Condiment receptacle : en
  • GB487448A - Improvements in buckles or fastenings for belts, bands and the like : en
  • GB487499A - Improvements relating to wire rope twisting machines : en
  • GB487605A - Process of colouring artificially-produced oxide films on aluminium and its alloys : en
  • GB487777A - Filtering material for smokes for gas masks : en
  • DE661497C - Elastic pendulum, especially for measuring gravity : de en
  • US2121655A - Conductor inserting machine : en
  • CA374513A - Nickel base alloy : en fr
  • DE661669C - Cleaning system for liquids, e.g. B. Wastewater : de en
  • FR829323A - Improvements to switches and crossings intended to circulate a set of wagons or sedans : en fr
  • USD110191S - Design for a shoe retainer : en
  • GB487695A - Improvements in and relating to methods of braking asynchronous electric motors : en
  • US2121352A - Machine for winding yarns or threads or the like on to paper tubes or cones or other bodies : en
  • DE661750C - Process for the preparation of gold compounds from keratin breakdown products : de en
  • AT153616B - Base fabric or the like for embroidery. : de en
  • CA374583A - Telephone system : en fr
  • US2120963A - Power meat band saw : en
  • US2121168A - Wearing apparel : en
  • US2121182A - Selective signaling system : en
  • US2121368A - Process of catalytically hydrogenating metal salts of high molecular nonaromatic carboxylic acids : en
  • US2121272A - Method of producing sound reproducing needles : en
  • US2121505A - Bookbinding : en
  • US2121699A - Self-starting single-phase alternating current synchronous motor : en
  • US2121145A - Flying shear : en
  • US2121420A - Apparatus for dewaxing oils : en
  • GB487623A - Improvements in or relating to the longitudinal measurement of running webs : en
  • US2121645A - Elastic fluid turbine : en
  • US2121126A - Print roll composition : en
  • US2121211A - Automatic line tracker : en
  • US2121252A - Tire retreading machine : en
  • US2121770A - Welding flux : en
  • GB487516A - Improved apparatus for the physical and chemical treatment of gases with liquids : en
  • DE661683C - Cutting torch mouthpiece : de en
  • US2121463A - Making carbon black : en
  • CA374549A - Circuit breaker recloser : en fr
  • DE661582C - Sound recorder : de en
  • GB487711A - Improvements in serrating and breaking flax and other fibrous plants and apparatus therefor : en
  • DE661515C - Adjustable electrical resistance : de en
  • DE661657C - Anti-skid belt for motor vehicles : de en
  • GB487592A - Improvements in and relating to circuits for electric discharge devices : en
  • AU104181B2 - Improvements in and relating to glass blocks : en
  • US2121229A - Mechanical furnace : en
  • US2121736A - Automatic frequency control circuits : en
  • CA374550A - Stable vinyl resin : en fr
  • GB487488A - Improvements in signal receiving apparatus for telephone systems : en
  • GB487528A - Improvements in or relating to bedsteads : en
  • GB487587A - Improvements in liquid-sealed joints between relatively rotating members : en
  • GB487797A - Securing attachments to wire cables : en
  • GB487860A - Improvements in electric motor controllers, particularly for electrically driven vehicles : en
  • US2121531A - Door latch structure : en
  • US2121654A - Dish : en
  • US2121661A - Process and apparatus for drying and burning moist materials : en
  • US2121411A - Generator for sound oscillations for measuring distance according to the echo principle : en
  • US2121469A - Sizing and shearing method and device for flattened expanded metal : en
  • GB487670A - Improvements in or relating to metallurgical furnaces : en
  • US2121053A - Lining for containers and machine for and method of forming the same : en
  • US2121451A - Lawn mower : en
  • USD110153S - Design for a lace tablecloth : en
  • US2121389A - Control for fluid pressure devices : en
  • US2121520A - Maintenance of phosphate coating baths : en
  • DE661714C - Device for the execution of planing and copying work on fine boring mills : de en
  • US2121203A - Protection ticket : en
  • US2121483A - Process for the production of cisandrosterone : en
  • US2121537A - Furnace construction : en
  • DE661547C - Adjustment device for hydraulic brakes equipped with a main pressure piston and a drive piston : de en
  • US2121620A - Switch box cover fastener : en
  • US2121393A - Method for coppering of seamless tubes : en
  • US2121421A - Vibrator power supply system : en
  • US2121680A - Coating compositions : en
  • AU104185B2 - Improvements in or relating tothe preparation of magnesium : en
  • CA374512A - Thick liquid mixing and spraying apparatus : en fr
  • AT153672B - Roof tiles. : de en
  • DE661590C - Four-stroke internal combustion engine : de en
  • DE661592C - Auxiliary device for preparing the soft soldering of an aluminum cable : de en
  • AU235737A - Improvements in or relating to ceramic insulators : en
  • US2121163A - Start-stop distributor system : en
  • GB487574A - Safety razor with ribbon shaped blade : en
  • US2121435A - Method of manufacturing threading dies : en
  • CA374648A - Lawn mower sharpener : en fr
  • AU104224B2 - Improvements in and relating to gyratory crushers : en
  • GB487443A - Improved means for mounting the instruments, indicators and gauges upon a motor vehicle : en
  • AU104209B2 - Improvements in centrifugal driers : en
  • US2121215A - Preparation of titanium oxygen compounds : en
  • US2121233A - Windshield cleaner : en
  • US2121386A - Hatch fastener : en
  • US2121172A - Heel and its attachment to shoe : en
  • US2121317A - Fender guide : en
  • US2121093A - Traffic signal : en
  • US2121109A - Electric furnace : en
  • FR829333A - Door for rail cars and other applications : en fr
  • GB487423A - Pole mounted electric cartridge fuses : en
  • GB487539A - Improvements in copying lathes : en
  • GB487543A - Improvements in or relating to driving gear chains with wedgeshaped links : en
  • FR829375A - Improvements to magnetically controlled electric switches : en fr
  • GB487335A - Means for testing compressed air-operated valves or pistons, particularly the valvesor pistons employed in connection with the gyroscopic rudder control of torpedoes : en
  • GB487524A - Improvements in mechanical toys : en
  • US2121115A - Condenser system for railway cars : en
  • GB487669A - Improvements in the manufacture and production of surface-active agents : en
  • GB487718A - Manufacture of 4-nitro-2-amino-1-oxynaphthalene sulphonic acids : en
  • GB487833A - Improvements in or relating to television transmitting apparatus : en
  • GB487411A - Weft fork mechanism for looms : en
  • GB487648A - Improvements in the manufacture of fibres from glass and other materials : en
  • GB487748A - Improvements in or relating to optical sound recording apparatus : en
  • USD110233S - Design fob lace : en
  • GB487749A - Improvements in or relating to sound recording apparatus : en
  • CA374635A - Container : en fr
  • AU104167B2 - Amplifier for dielectric guide system : en
  • FR829340A - Packing box : en fr
  • GB487689A - Improvements in motor car bumpers : en
  • DK54892C - Gliplaas. : da en
  • US2121432A - Structural assembly : en
  • US2121436A - Thread protector : en
  • US2121700A - Shade flxture : en
  • AT153636B - Device for determining the location of faults in multi-core cables or the like with the aid of a bridge circuit. : de en
  • AT153658B - Waterproof binding for footwear. : de en
  • CA374540A - Anhydrite manufacture : en fr
  • GB487634A - Improvements in pantographic copying and engraving machines : en
  • US2121375A - Stop mechanism for knitting machines : en
  • US2121242A - Exhaust muffler : en
  • US2121696A - Switch for toy vehicle tracks : en
  • AT153629B - Brake circuit for electrically powered vehicles. : de en
  • AT153620B - Heat exchange device. : de en
  • DK54875C - Protective device for Speakers. : da en
  • DK54887C - Apparatus for Examination of Stockings for Possible Defects. : da en
  • GB487837A - Improvements in or relating to a process for the fermentation of organic matter : en
  • DE661622C - Spinning arrangement for the production of artificial threads, in particular artificial silk threads : de en
  • DE661631C - A middle layer for plywood panels assembled from several board strips without gluing : de en
  • GB487795A - Improvements in or relating to the manufacture of artificial resin compositions of low temperature sensitivity : en
  • DE661612C - Device for fulfilling the task of making a periodically irregular torque uniform : de en
  • AU104174B2 - Improved motor fuel : en
  • FR48792E - Preparation process for plastics : en fr
  • GB487544A - Electric fuze for submarine mines, grenades, bombs and like ammunition : en
  • FR48729E - Improvements in refrigeration cabinets installed in a retracted part of a room : en fr
  • US2121022A - Marked article and process for producing the same : en
  • US2121195A - Printing press : en
  • GB487438A - Improvements in ventilators for railway coaches and other vehicles : en
  • GB487496A - Improvements in and relating to apparatus for drying materials and particularly materials in the form of slurry : en
  • DK54876C - Electric Discharge Pipe with Gaseous or Steam Filling or both. : da en
  • DE661633C - Temperature meter : de en
  • DE661695C - Process for generating light by means of gas or metal vapor-filled discharge tubes that are operated with a superimposed high-frequency current : de en
  • GB487547A - Method and device for the electrical purification of gases : en
  • GB487654A - Psychrometric apparatus for direct reading of humidity : en
  • GB487707A - Improvements in or relating to carpet sweepers and dust pans therefor : en
  • AU104199B2 - Method of producing binding agents : en
  • GB487643A - Improvements in or relating to helmets : en
  • FR48765E - Azo dyes manufacturing process : en fr
  • GB487491A - Improved process for the autogenous welding or soldering of metals : en
  • FR829354A - New stripper product and its manufacturing process : en fr
  • GB487709A - Improvements in packing materials : en
  • GB487445A - Improvements in gas pokers : en
  • GB487722A - Improvements in methods of sealing side-tubes to thick-walled vitreous tubing : en
  • AT153641B - Espagnolette lock, especially for windows. : de en
  • AT153664B - Process for the production of glass bodies provided with colored characters, texts, drawings or the like. : de en
  • DE661482C - Floating platform : de en
  • GB487506A - Manufacture of medicinal depots, masses for infusion, stiffening agents, plastic fillings and the like : en
  • DE661538C - Process for making rayon crepe fabric : de en
  • GB487591A - Improvements in flyers for spinning machines for flax and other like fibres : en
  • AT153669B - Face mask. : de en
  • AU237137A - Improvements in and relating to electrical signalling and like apparatus : en
  • FR48772E - Apparatus for storing and consulting volumes, by the set of pivoting cells placed in a cabinet specially assigned to this use : en fr
  • US2121086A - Typewriting machine : en
  • US2121566A - High intensity reflector : en
  • GB487664A - Fixing means for water heaters : en
  • US2121283A - Insulating member for electric heating elements : en
  • GB487405A - Improvements in or relating to automatic steering gear : en
  • CA374542A - Modulated carrier wave transmitter : en fr
  • FR829302A - High explosive shell particularly for shooting against planes : en fr
  • US2121634A - Spear : en
  • US2121175A - Toy : en
  • US2121504A - Vehicle suspension : en
  • USD110203S - Design for a fruit juicer : en
  • GB487513A - Improved apparatus for temporarily laying electric cables : en
  • GB487531A - Improvements relating to axially movable spindles of milling and like machine tools : en
  • GB487633A - Improvements in headlamp installations for vehicles : en
  • FR829307A - Improvements in telephotography and similar devices : en fr
  • GB487508A - Improvements relating to liquid measuring and dispensing apparatus : en
  • IE14682L - Wall construction for bay windows : en
  • GB487402A - Improved target : en
  • US2121416A - Cushioned coupling for trailers : en
  • US2121468A - Sizing method and machine : en
  • US2121765A - Reflecting electric lamp : en
  • US2121577A - Window assembly for automotive vehicles : en
  • US2121748A - Stable lime soap grease : en
  • GB487563A - Improvements in circuit arrangements adapted to produce electric current impulses ofpredetermined duration : en
  • US2121492A - Adjustable counter partition : en
  • US2121186A - Opening of collapsed shells of slide and shell containers : en
  • US2121373A - Tooth brush : en
  • US2121623A - Dynamo-electric machine : en
  • GB487639A - Improvements in lighter than air aircraft : en
  • DK54871C - Vendemanchet. : da en
  • GB487334A - Improvements in or relating to the manufacture of goods of sponge-like or cellular rubber or similar material : en
  • GB487668A - Improvements relating to static frequency changers : en
  • US2120981A - Screw off packer : en
  • US2121011A - Stabilizing vinylidene chloride : en
  • US2121613A - Drainage device : en
  • US2121771A - Photoelectric haze penetrator : en
  • FR48734E - Transmission of synchronization signs : en fr
  • GB487346A - Improvements in and relating to resilient supports or connections consisting of rubber and metal : en
  • GB487765A - Improvements in or relating to rotary piston machines : en
  • AU231637A - Improvement in selectivity control : en
  • US2121580A - Hydrogenation of oiticica oil and product therefrom : en
  • DK54882C - Procedure for photographic recording of electrical oscillations, in particular sound recording, and circuit arrangement of associated apparatus. : da en
  • GB487792A - Improvements in spraying devices for aeroplane screw propellers : en
  • GB487422A - Improvements in electric traction and like control systems : en
  • US2121162A - Towel : en
  • USD110210S - Design for a cabinet for a : en
  • AT153622B - Process and device for operating explosion engines with highly compressed propellant gases. : de en
  • AT153634B - Process for vulcanizing synthetic rubber. : de en
  • AU516937A - Improvements in plasticised polyvinyl acetal resins : en
  • AT153670B - Socket contact for pinless sockets of radio tubes etc. like : de en
  • AT153691B - Roll film cassette. : de en
  • CA374580A - Fender skirt : en fr
  • CA374591A - Extreme pressure lubricant : en fr
  • US2121616A - Sulphates of polybasic acid esters : en
  • CA374562A - Solenoid : en fr
  • US2121649A - Scrubbing machine for floors and floor coverings : en
  • GB487569A - Weed killing appliance : en
  • DE661571C - Collapsible tent that can be used as a handbag : de en
  • FR48753E - Electronic amplifier : en fr
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  • GB487626A - Improvements in or relating to drawing mechanisms for spinning frames : en
  • US2121660A - Internal combustion motor : en
  • GB487360A - Improved manufacture of hormones : en
  • GB487856A - Improved method and device for providing a differential regulation of the supercharging and scavenging in internal combustion engines : en
  • DE661551C - Brush with interchangeable brush bodies : de en
  • AT153618B - Device for water purification in flue gas pipe preheaters. : de en
  • FR48746E - Arrangement of piston rings for fuel injection devices in internal combustion engines : en fr
  • FR829414A - Steering wheel support and elastic suspension device, in particular for motor vehicles : en fr
  • US2121544A - Recovery of sulphur : en
  • US2121016A - Azo dyes derived from beta-naphthol : en
  • US2121214A - Lubricating means for change speed mechanisms : en
  • US2121227A - Weighing apparatus : en
  • DE1438532U - : de en
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  • US2121060A - Locking mechanism : en
  • US2121072A - Artificial fly for fishing : en
  • US2121720A - Control for the movement of vehicle bodies : en
  • GB487469A - Improvements in devices comprising high-pressure metal-vapour discharge tubes : en
  • AU104223B2 - Merchandise package usable as a periscope : en
  • AU104220B2 - Improvements in drenching and hypodermic syringes : en
  • CA374627A - Cooking receptacle : en fr
  • US2121202A - Rotary bit : en
  • US2121292A - Magnesium alloys containing cerium and other elements : en
  • USD110178S - fuller : en
  • CA374502A - Circuit interrupter : en fr
  • CA374567A - Continuous absorption refrigeration system : en fr
  • AT153637B - Overcurrent torque relay for alternating current, insensitive to the direct current component contained in the inrush current. : de en
  • US2121503A - Glove lining : en
  • AU104176B2 - Improvements in potato harvesters for tractor haulage : en
  • US2121447A - Oscillator stabilizing circuit : en
  • US2121755A - Process for making patterned effects on crepe fabrics and products therefrom : en
  • CA374556A - Fuel resisting material : en fr
  • USD110211S - Design for a trophy : en
  • AT153661B - Tie. : de en
  • US2120964A - Grain puffing equipment : en
  • US2121456A - Collapsible adjustable chair : en
  • CA374499A - Methinecyanine dye : en fr
  • AT153660B - Method for generating sound, in particular for electrical musical instruments. : de en
  • FR48761E - Device for mechanically washing laundry in a washing machine : en fr
  • GB487630A - Method of and device for producing slubbing on drawing frames : en
  • US2121054A - Apparatus and method for controlling rotation : en
  • CA374555A - Tire : en fr
  • DE661517C - Electric lamp : de en
  • FR829378A - Improvements to devices for stretching plastics such as caramel : en fr
  • GB487509A - Improvements relating to liquid measuring and dispensing apparatus : en
  • CA374657A - Gaseous fluid filter : en fr
  • AU547937A - Priming mixture : en
  • FR48715E - Advanced cowling : en fr
  • FR48790E - Electric mercury vapor discharge lamp with rare gas base filling : en fr
  • US2121727A - Two-cycle engine : en
  • CA374498A - Oxazole-trimethinecyanine : en fr
  • AT153684B - Adjustment device for tensioners. : de en
  • US2121042A - Process of making container closures : en
  • US2121630A - X-ray apparatus : en
  • US2121729A - Sizing apparatus for internal grinding machines : en
  • DE597060C - Process for the production of higher molecular weight alcohols from acid anhydrides : de en
  • AT153653B - Impeller suspension, in particular for motor vehicles. : de en
  • CA374539A - Electric discharge lamp : en fr
  • DE661533C - Vibration device for pianos, grand pianos, etc. like : de en
  • AT153608B - Switch for radio equipment. : de en
  • AT153678B - Process for the production of dyes. : de en
  • AU104207B2 - Electron-optical system with network grid for television and like purposes : en
  • FR48786E - Country motor vehicle : en fr
  • FR829395A - Process for preparing aluminum salts of carboxylic acids : en fr
  • GB487660A - Process for the production of a porous absorbent product : en
  • GB487861A - Improvements in or relating to fluid pressure operated blowers for cleaning the tubes of steam generators and the like : en
  • CA374638A - Neon tube receptacle and socket : en fr
  • AT153644B - Lock. : de en
  • CA374527A - Aluminium alloy processing by heat : en fr
  • DE661663C - Silencers for firearms : de en
  • DE661764C - Precession Globe : de en
  • AU233937A - Improvements in or relating to the electrodeposition of zinc : en
  • US2121097A - Method of segregating integumentfree fruit segments : en
  • US2121712A - Spring curtain threader : en
  • USD110200S - Design fob a merchandise display : en
  • AT153624B - Electric switchgear for motor vehicles. : de en
  • US2121663A - Automatic power transmitting mechanism : en
  • US2121372A - Joint construction : en
  • DE661598C - Process for the production of coke, especially Huettenkoks, from hard coal containing matt and glossy coal : de en
  • DE661596C - Gate, door and window hangings : de en
  • CA374586A - Lateral outlet efficator : en fr
  • AT153627B - Switches with free air separation, especially for high voltages. : de en
  • AU104197B2 - Improvements in or relating to ceramic insulators : en
  • CA374576A - Wheel : en fr
  • FR48709E - Device for supplying pulp of regulated consistency to tables or forms for the manufacture of paper, board or other similar products : en fr
  • FR48713E - Machine for automatic loading and crimping of hunting cartridges : en fr
  • GB487756A - Pressure relief valves for fluid-circulating systems : en
  • US2121596A - Safety closure for tank trucks : en
  • AU276937A - Improvements in or relating tothe manufacture of hollow articles of rubber : en
  • AU104186B2 - Device for ensuring the automatic regulation ofthe delivery of hydraulic mains : en
  • CA374521A - Meat curing salt : en fr
  • US2121019A - Purification of ether : en
  • US2121356A - Electron tube : en
  • US2121098A - Apparatus for segmenting fruit : en
  • US2121556A - Lateral motion device for railway vehicle axles : en
  • USD110144S - Design for a flower holder : en
  • US2121076A - Molding composition of urea resin and modifying agent and process of making same : en
  • DE661387C - Method for suppressing the energy-consuming harmonics that arise in a coil, in particular the first harmonic : de en
  • CA374508A - Amplification control : en fr
  • US2120977A - Fireplace : en
  • US2121235A - Mercury switch : en
  • US2121617A - Esters of sulphato-carboxylic acids : en
  • AU104187B2 - Improvement in roofing strip : en
  • CA374548A - Superheterodyne radio receiver : en fr
  • AU343037A - Improved motor fuel : en
  • GB487621A - Process for the production of new monoazo dyestuffs : en
  • DE661685C - Register sheet for letter folder : de en
  • DE661558C - Device for regulating the room temperature, especially of railroad cars : de en
  • DE661681C - Rubber sheet, especially for underwear : de en
  • FR48747E - Electro-optical imaging systems with device for reducing image distortion : en fr
  • FR829386A - High definition cathode ray tubes : en fr
  • AU424337A - Improvements in and relating tothe manufacture of glass blocks : en
  • AU388137A - Improved water sprinkler : en
  • US2121667A - Gas-tight packing box : en
  • US2121049A - Refrigeration apparatus : en
  • CA374617A - Bicycle pedal : en fr
  • AU390637A - Improvements in and relating to gyratory crushers : en
  • US2121489A - Knit breast pocket for garments and method of producing same : en
  • AU135437A - Amplifier for dielectric guide system : en
  • USD110196S - Design for a lamp : en
  • US2120999A - Automatic volume control circuits : en
  • US2121359A - Apparatus for timing of periodic events : en
  • USD110213S - Design for a drawer pull : en
  • FR48704E - Improvements for cycles, motorcycles and derivatives : en fr
  • FR829348A - Method and device for tempering glass : en fr
  • US2121240A - Earth moving device : en
  • US2121320A - Quinophthalonemonosulphonic acids and process of preparing them : en
  • DE661402C - Process and flat weft knitting machine for the production of knitted goods with bar machines : de en
  • GB487463A - Improvements in obtaining electric contact between two metallic parts abutting against each other : en
  • GB487788A - Improvements in or relating to segmental abrasive wheels and methods of making the same : en
  • CA374654A - Window sash fastener : en fr
  • US2120985A - Electromagnetic device : en
  • US2121170A - Process for manufacturing an endless film record for sound reproduction : en
  • FR48723E - Improvements to vehicles with chains or running belts : en fr
  • CA374574A - Writing instrument : en fr
  • GB487628A - Improvements in electrical circuits for frequency changing : en
  • USPP280P - Gladiolus : en
  • US2121419A - Call distributing telephone system : en
  • GB487530A - Electrically controlled apparatus for producing alternating pressure in a cylinder with an operation period : en
  • GR7480B - FINISHED FIXING DEVICE INCLUDING NUTWEIGHT. : el en
  • CA374564A - Splicing machine : en fr
  • GB487340A - Improvements relating to shutter mechanism for photographic cameras : en
  • GB487481A - Improvements in or relating to the spindle driving arrangements of spinning, twisting and like machines : en
  • USD110176S - Design for a tray or similar : en
  • CA374519A - Meat curing mass : en fr
  • USD110189S - Design fob a knitted fabric : en
  • CA374588A - Speed reducing drive : en fr
  • FR829326A - Method and device for coupling electric generators and resulting installations : en fr
  • US2121075A - Clutch mechanism : en
  • US2121583A - Transformer tank structure : en
  • DE661608C - Pressing and lifting device for slip-forming machines : de en
  • DE661647C - Plating and polishing agents for metal surfaces : de en
  • US2121089A - Rotary vegetable cutter : en
  • US2121703A - Cork treated paper pulp : en
  • DE661743C - Lining for traction sheaves : de en
  • GB487408A - An improved method of avoiding dangerous torsional oscillations during the starting of multi-cylinder internal combustion engines : en
  • GB487453A - Improved lens system : en
  • GB487565A - Improvements in or relating to devices for tilting high-frequency furnaces : en
  • GB487735A - Improvements in and relating to thermal relays : en
  • DE648818C - Headband ear specula : de en
  • GB487497A - Improvements in straight-bar knitting machines : en
  • GB487349A - New or improved kerb for a well fire : en
  • GB487548A - Improvements in or relating to cockpit covers for use on aircraft, motor boats and ships and in similar positions : en
  • GB487708A - Improvements in or relating to aerial and feeder systems : en
  • CA374495A - Radio modulating system : en fr
  • DE661577C - Device for joint clamping of all saws in full gates : de en
  • US2121079A - Electric thermostat : en
  • US2121710A - Threadless interlocking rotary drill pipe coupling : en
  • US2121563A - Braking device : en
  • US2121137A - Belt cradle for roving and spinning frames : en
  • US2121399A - Process for production of zinc sulphate : en
  • US2121619A - Preservation of rubber : en
  • US2121659A - Reinforced track crossing : en
  • US2121716A - Leather cutting machine : en
  • US2121397A - Stabilized salts of hydrosulphurous acid and preparation thereof : en
  • DK54885C - Mechanics for Keyboard Instruments. : da en
  • US2121295A - Golf club : en
  • GB487620A - Improvements in or connected with horticultural glass frames : en
  • DE661518C - Electric light tubes with metal base disks fused to the ends of the vessels : de en
  • FR829332A - Progressive gear change device : en fr
  • GB487343A - Improvements relating to telephone receivers : en
  • GB487397A - Improvements in or relating to receivers for phase and frequency modulated oscillations : en
  • US2121057A - Arsenic iron alloy : en
  • US2121326A - Pour point reducer : en
  • US2121486A - Hopper and agitator : en
  • DE661562C - Compressed air switch, especially for higher voltages : de en
  • DE661548C - Device for the remote display of measured quantities, in particular the frequency : de en
  • GB487351A - Improvements relating to intermittent driving mechanism especially for filtering or thickening apparatus : en
  • GB487368A - Improvements in and relating to the driving of vehicle axles : en
  • USD110156S - Design for a coat : en
  • US2121487A - Attachment for air hammers : en
  • GB487532A - An improved method of and apparatus for sand-blasting metal surfaces : en
  • US2121676A - Multiple purpose sewing equipment holder : en
  • US2121744A - Electric furnace : en
  • USD110152S - Design for an electric fence con : en
  • USD110157S - Design for a combined steering : en
  • US2121066A - Flexible coupling : en
  • US2121429A - Resilient engine mount : en
  • FR48781E - Improvements to television systems and more particularly to scanning systems : en fr
  • GB487354A - Improvements in and relating to electric transformer regulating systems : en
  • GB487646A - Improvements in stays for ladies' corsets or similar apparel : en
  • US2121324A - Liquid level control apparatus : en
  • GB487450A - Improvements in or relating to vacuum cleaners : en
  • US2121307A - Cleaning and sterilizing device : en
  • GB487477A - Improvements in lifting or hoisting tackle for paper reels and other cylindrical bodies : en
  • FR829339A - Improvements in the preparation of insecticides and parasiticides in suspension or in emulsion : en fr
  • US2121091A - Audio frequency volume control means : en
  • US2121677A - License plate holder : en
  • USD110183S - Design for a shoe : en
  • US2120967A - Hydraulic hoist : en
  • US2120980A - Contact spring : en
  • US2121686A - Method of making hot-blast valve seats : en
  • GB487504A - Improvements relating to auxiliary gear boxes for motor road vehicles : en
  • US2121497A - Chassis-frame for automobile vehicles : en
  • US2121658A - Exhibition bench : en
  • CA374503A - Circuit interrupter : en fr
  • FR829357A - Paper strip cutting machine : en fr
  • GB487780A - Improvements in and relating to sound insulating pipe connections : en
  • DE661594C - Storage of the crushing cone for plate crusher : de en
  • DE661561C - Extinguishing pipe for electrical switches : de en
  • DE661641C - Alignment device for beans : de en
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  • GB487704A - Means for bringing gas and liquid into intimate contact : en
  • DE661742C - Internal combustion free-flight piston compressor with at least one internal combustion cylinder arranged between two compressor cylinders : de en
  • US2121068A - Pump lining : en
  • AT153611B - Method and device for the joint processing of rubber threads with textile threads. : de en
  • AT153646B - Process for the production of alloys of iron or nickel with manganese, copper, aluminum and the like. like : de en
  • US2121584A - Electrical set-up mechanism : en
  • DE661559C - Rail contact device : de en
  • GB487774A - Improvements in or relating to storage tanks for volatile spirits and the like : en
  • DE661646C - Hose tie consisting of a tension band with a clamping device : de en
  • US2121693A - Electric arc welding : en
  • US2121369A - Method for treating tobacco : en
  • US2121318A - Counterflow apparatus : en
  • US2121344A - Article of jewelry and the like : en
  • DE661637C - Method for re-calibration of testing machines working with kneading tools for plastic masses, especially bread dough : de en
  • US2121571A - Electric switch : en
  • USD110146S - Design fob a fountain shelf back : en
  • US2121713A - Electric plug : en
  • USD110227S - Design for a foot rest : en
  • GB487440A - Interwound film material : en
  • US2121142A - System for the artificial production of vocal or other sounds : en
  • DE661550C - Calender device for deficient equipment of fabric webs : de en
  • US2121494A - Nonrepeating indicator : en
  • US2121521A - Electrical connecter plug : en
  • US2121578A - Means for adjusting the electrodes of electric furnaces : en
  • GB487442A - Improvements relating to casement stays : en
  • GR7460B - CONTINUOUS BODY. : el en
  • US2121101A - Tentering machine : en
  • US2121277A - Bearing : en
  • US2121533A - Method of carrying out certain oxidative fermentation processes by bacteria : en
  • US2121143A - Method of feeding molten glass : en
  • USD110163S - Design for a shoe : en
  • US2121090A - Heating apparatus for automobiles : en
  • US2121576A - Clamp : en
  • US2121702A - Baseball head protector : en
  • US2121717A - Method of coating fabrics and product thereof : en
  • USD110182S - Design for a shoe : en
  • USD110215S - Design fob a coat : en
  • US2121349A - Slicing apparatus : en
  • USRE20770E - Electric switch : en
  • US2121522A - Car seat : en
  • US2121543A - Fluid pressure brake : en
  • AU371937A - Dispersible sulphur and compositions containing thesame : en
  • GB487461A - Improvements in automatic slack adjusters for vehicle brakes, especially railway carbrakes : en
  • US2121348A - Meat slicing machine : en
  • DE661713C - Lathe driver with two opposing locking paws that are pressed against the workpiece by spring force : de en
  • GB487432A - Improvements in or relating to prepayment mechanism for electric supply meters : en
  • CA374636A - Meat waste and offal processing : en fr
  • FR48768E - Improvements in friction training devices : en fr
  • FR829346A - Foot pedal for railway tracks : en fr
  • GB488254A - Improvements in or relating to electrical wave filters : en
  • IE15309L - Metallurgical products; electrodes : en
  • FR48751E - Preparation of new aliphatic ethers-salts of the dihydrooestrin series : en fr
  • FR48787E - Method and device for the direct measurement of horizontal distances by means of range finders and rods : en fr
  • GB487473A - Improvements in boat-carriers, ski-carriers, trunk-carriers and the like for automobile vehicles : en