• USD123543S - Design fob a dress ok similar article : en
  • US2221500A - Method and means for feeding sheets : en
  • US2221369A - Process foe producing lactams : en
  • CH212147A - Window blocking and sealing device. : en fr
  • US2221612A - Speed regulator : en
  • CH212199A - Process for the preparation of a pregnen-5-ol-3-one-20 derivative. : de en
  • CA392496A - Railway car end wall : en fr
  • US2221023A - Production of staple fiber yarns : en
  • US2221087A - Converter automatic gain control : en
  • US2221726A - Railway track circuit apparatus : en
  • AU111867B2 - Improvements in or relating to boxes made of cardboard or similar material : en
  • DE698718C - Centrifugal machine whose impeller blades are adjustable between the impeller hub and the impeller outer rim : de en
  • FR857953A - Chrome metallurgy upgrades : en fr
  • US2221186A - Power dividing differential mechanism : en
  • US2221719A - Straw collecting device : en
  • US2221172A - Conversion of hydrocarbon oils : en
  • US2221338A - Deposition of material : en
  • US2221583A - Gas combustor unit : en
  • CA392491A - Heat insulating unit : en fr
  • US2221532A - Latch for closure : en
  • US2221639A - Power driving means : en
  • AT159792B - Process for the production of artificial structures such as rayon, synthetic staple fibers, horsehair, ribbons, films and the like. Like., from alkaline casein solutions. : de en
  • GB529158A - Improvements in or relating to nut structures : en
  • GB529223A - Improvements in pyrophoric lighters : en
  • US2221154A - Apparatus for testing concentricity of spark plug porcelains : en
  • CH212336A - Method for the preparation of a 4,5-unsaturated 3-ketone of the sex hormone series. : de en
  • US2221110A - Lock mechanism : en
  • AU122620B2 - Improvements in electric oscillators : en
  • AU191739A - Method of and means for testing eyes : en
  • AT159772B - Electrical high-speed switch with overcurrent release, especially automatic socket. : de en
  • AU178740A - Improvements relating to reciprocating screens : en
  • SE100224C1 - Ways to extract potassium salts from saline solutions : en sv
  • US2221522A - Floor covering : en
  • US2221625A - Treatment of manganese alloys : en
  • USD123487S - Design fob a tie back : en
  • GB529026A - Improvements in or relating to telephone systems : en
  • US2221365A - Electrical control for steam mooring winches : en
  • FR857965A - Device for marking leather, fabrics, paper, etc. : en fr
  • CH212186A - Shoe trees. : de en
  • CA392445A - Fuel ignition apparatus : en fr
  • FI18884A - Electric strap light bulb : en fi
  • AU111774B2 - Improvements relating tothe production of composite articles of rubber and fabric : en
  • CH212258A - Flow regulator. : de en
  • AU37740A - Improvements in or relating to beverage brewing devices : en
  • CH212296A - Circuit arrangement for setting the simulation and for measuring the afterimage quality in duplex circuits. : de en
  • US2221106A - Electric battery : en
  • US2221166A - Variable speed drive : en
  • US2221464A - Automatic strip feed control mechanism : en
  • US2221598A - Machine and method for making nut blanks : en
  • DE698488C - Switching device for direction indicators, especially on motor vehicles : de en
  • DE698667C - for internal combustion engines for dusty solid fuels : de en
  • US2221657A - Method of making engine valves : en
  • US2221073A - Dust separator : en
  • US2221197A - Milk bottle cap and method of making the same : en
  • US2221525A - Electrical system for displaying pictures and communications by means of a lamp screen : en
  • US2221011A - Method and apparatus for producing mineral wool : en
  • US2221481A - Electric control mechanism for bread wrapping machines : en
  • US2221477A - Fence hardware : en
  • US2221560A - Stabilization of a zein solution by clarification : en
  • US2221703A - Electric unit heater : en
  • US2221328A - Pneumatic dough feeder : en
  • DE698611C - Lock device for vessel conveyor systems in weather shafts : de en
  • US2221198A - Electrical filter system : en
  • US2221262A - Means for cleaning and feeding kapok and other staple fibers : en
  • US2221594A - Clock housing and receptacle mounting : en
  • GB529184A - Improvements in intermittent driving gear for glass forming machines : en
  • US2221384A - Weft thread feed mechanism : en
  • GB528962A - Improvements in and relating to the manufacture of synthetic resins : en
  • AT159785B - Water post head. : de en
  • CH212223A - Construction game. : en fr
  • US2220918A - Elastic fluid turbine bucket wheel : en
  • US2221359A - Hoist : en
  • US2221074A - Brake mechanism : en
  • US2221236A - Elevator cover : en
  • DE698540C - Process for the production of canned sauerkraut : de en
  • FR858023A - Device for spherical turning : en fr
  • GB529152A - Improvements in or relating to radio aerial arrangements : en
  • IE16308L - Calling line identification. : en
  • GB528977A - Improvements in electrolytic condensers : en
  • US2221228A - Tool for flaring tubes : en
  • DE698759C - n, especially tough lubricants : de en
  • GB529180A - Improvements relating to methods of obtaining copies of photographic images in colours : en
  • FR50498E - Improvements to centrifugal sprayers for liquids : en fr
  • DE698613C - Process for thickening and solidifying water-insoluble organic liquids : de en
  • FR858034A - Fire detector capable of automatically activating an extinguishing system : en fr
  • GB528904A - A process for removing organic acids from water-insoluble organic liquids : en
  • GB529217A - Improvements in pressure applying devices for small portable drilling machines : en
  • USD123549S - Design for a wallpaper : en
  • AU111846B2 - Improvements in or relating to electron multipliers : en
  • CA392431A - Map making apparatus : en fr
  • GB529079A - Improvements in or relating to the supercharging of compressors by means of a rotary blower : en
  • DE698576C - Sealing device : de en
  • US2221180A - Automatic transmission gear with no-back : en
  • US2221184A - Production of textile materials : en
  • DE698772C - Device for holding rod-shaped devices on bicycles and motorcycles : de en
  • US2221091A - Television system : en
  • US2221168A - Float : en
  • US2221561A - Stabilization of a zein solution by clarification : en
  • US2221408A - Pressure means for wringer rolls : en
  • US2221533A - Athletic ball : en
  • GB529129A - Improvements in control mechanism for electric range cooking units : en
  • US2221230A - Internal combustion engine : en
  • US2220986A - Pipe joint clamp : en
  • US2221383A - Cellulosic structure and method for producing same : en
  • US2220883A - Circuit controller : en
  • US2221643A - Electrical measuring instrument : en
  • USD123483S - Design for a luggage case : en
  • DE698500C - Electrical insulating material containing rubber and polyvinyl compounds, in particular for telecommunications cables : de en
  • GB529097A - Improvements relating to electric time-switches : en
  • CH212174A - Spindle on ring spinning and twisting machines. : de en
  • CH212189A - Process for removing carbon monoxide from mixtures with hydrogen. : de en
  • CH212352A - Process for the preparation of 3- (bis-dioxypropyl) -amino-4-oxy-3'-amino-4'-oxy-arsenobenzene-monoformaldehyde-sodium sulfoxylate. : de en
  • DE698663C - Pickups for records : de en
  • NL52998C - : en
  • US2221732A - Bobbin support : en
  • DE698478C - genuine lead powder : de en
  • DE698456C - Contact spring arrangement : de en
  • DE698590C - : de en
  • FR858086A - Decoration method and apparatus for carrying out the method : en fr
  • GB529117A - Process for the manufacture of coloured photographic material : en
  • GB529178A - Improvements relating to handling barrels and other objects : en
  • FR857983A - Device for igniting and feeding electric discharge tubes : en fr
  • DE698573C - Drawing mold for the manufacture of protective gas masks made of leather or leather-like plastics : de en
  • DE698635C - Four-footed toy figure, driven by a spring drive, representing an animal or the like : de en
  • US2221690A - Therapeutic composition : en
  • GB528910A - Improvements in filtration apparatus : en
  • US2221290A - Railway-highway grade crossing warning signal : en
  • US2221676A - Fruit washing apparatus : en
  • US2221126A - Flashlight : en
  • DE698460C - Method for determining the heating of field magnets of large-capacity synchronous electrical machines caused by the full operational excitation : de en
  • DE698775C - Process for coloring objects made of halogen-containing vinyl polymers : de en
  • USD123485S - De sign fob a fountain pen or similar article : en
  • USD123477S - Design for an electric food mixer : en
  • GB528971A - Improvements in or relating to telephone systems : en
  • GR9332B - IMPROVEMENTS IN THE REFRIGERATION OF ALUMINUM. : el en
  • DE698615C - Filler for non-rubbery plastics, especially cellulose acetate masses : de en
  • US2221351A - Drier : en
  • US2221741A - Pneumatic conveying apparatus : en
  • GB528980A - Improvements in or relating to the manufacture of metal beams and the like sections : en
  • US2220945A - Combination azimuth and bearing circle : en
  • US2221587A - Voltage regulator : en
  • US2221084A - Engine starter : en
  • US2221424A - Toy metal embossing machine : en
  • CA392505A - Cutting die and bladed stock : en fr
  • DE698627C - naelen, at the mouths of which the tooth gaps coming from the suction side pass : de en
  • FR50485E - Supercharged internal combustion engine : en fr
  • GB528951A - Improvements in or relating to apparatus for sealing tins, canisters, jars and the like under vacuum : en
  • GB529054A - Manufacture of amino-acid amidines : en
  • CA392481A - Gripping device : en fr
  • DE698513C - Method and device for segregating lead from zinc : de en
  • DE698693C - Telephone, especially coin operated telephone, with blocking contacts on the number switch to limit traffic : de en
  • CA392477A - Staple forming and driving machine : en fr
  • CA392500A - Shoe sewing machine : en fr
  • CH212280A - Mercury vapor jet pump with natural air cooling for rectifiers. : de en
  • USD123474S - Design for a lace : en
  • USD123550S - Design fob a wallpaper : en
  • US2221391A - Manufacture of double base propellent powders : en
  • US2221694A - Ice-making apparatus : en
  • FR858057A - Improvements in the manufacture of calcium hypochlorite : en fr
  • GB529027A - Improvements in power propulsion devices for pontoons, barges and other vessels : en
  • GB529227A - Improvements in and relating to compressors : en
  • DE698743C - Motor-driven device for cutting hard bandages, e.g. B. Gipsverbaende, as well as human and animal bones : de en
  • FR858078A - Sandblasting machine for various uses : en fr
  • GB529060A - Improvements in welded gasholders and other containers and the manufacture thereof : en
  • GB529128A - Magnesium carbonate composition and method of preparation : en
  • US2221059A - Folded blind : en
  • US2221675A - Composition top sole : en
  • USD123512S - Multiple envelope or similar package : en
  • US2221214A - Coagulant composition : en
  • AU494239A - Improvements in and relating to aircraft : en
  • CA12899S - Printed textile material : en
  • US2221041A - Control for heating systems : en
  • US2221086A - Automatic volume control circuit : en
  • FR50481E - Improvements to the methods and processes used in the treatment of celluloses and peats for the recovery of sugars and products formed during treatment : en fr
  • US2220893A - Closure device for container opening : en
  • DE698634C - continuous strip of staple fiber sections : de en
  • DE698774C - Boat launch device with folding davits arranged within the length of the boat : de en
  • GB529133A - Improvements in or relating to electric watthour meters : en
  • US2220969A - Sewing machine spool holding means : en
  • US2221219A - Adjustable shovel : en
  • US2221247A - Magnesium base alloy : en
  • US2220881A - Recording apparatus for detector cars : en
  • US2220941A - Stabilized mineral oil composition : en
  • CH212139A - Manure stirrer. : de en
  • CH212297A - Telephone for several people. : de en
  • CA392490A - Cylindrical object transportation system : en fr
  • US2221212A - Refrigerating apparatus : en
  • US2221552A - Chlorinated starch and process for production of same : en
  • USD123470S - Design fob a back bab : en
  • FR858072A - New multiple lipstick case : en fr
  • US2221421A - Athletic implement and method of making the same : en
  • US2221425A - Conversion of hydrocarbon oils into gasoline : en
  • CH212205A - Method and device for the continuous processing of solutions of cellulose in strong mineral acids into threads, films, foils, tubes, etc. : de en
  • DE698490C - Ball mount for firearms : de en
  • GB528978A - Overhead outdoor switchgear with improved actuating mechanism : en
  • CH212217A - Pencil with lead held in a paper cover that can be torn off piece by piece. : de en
  • CA392404A - Fire detector and alarm : en fr
  • CA392462A - Water resistant zein composition : en fr
  • US2221201A - Speed governing mechanism : en
  • US2221100A - Fluid actuated tool : en
  • US2221638A - Grinding machine : en
  • US2221721A - Taillight and bumper combination : en
  • GB528938A - Improvements in or relating to water cooling towers : en
  • GB529011A - Electric signal transmission systems : en
  • CH212149A - Window blind frame. : en fr
  • US2221573A - Impulse generator : en
  • US2221072A - Coin rack : en
  • US2221378A - Plastic and process for producing same : en
  • US2221699A - Bean slicer : en
  • DE698758C - Lubricating device for compressor : de en
  • DE698350C - animals from semolina, steam, etc. : de en
  • DE698507C - Device for stretching the dental arch with a palatal plate divided by a sagittal incision : de en
  • CA392461A - Separation of solid particles from fluids : en fr
  • CH212241A - Waterproof watch box. : en fr
  • CH212256A - Ball bearing for small axes, in particular for time devices. : en fr
  • US2221428A - Counterbalance device : en
  • US2221474A - Method of depositing fluorescent material : en
  • USRE21622E - Control apparatus : en
  • CH212148A - Sun blinds. : de en
  • CH212214A - Device for attaching a movie reel to various attachment axles. : de en
  • USD123527S - Design for a dress : en
  • DE698657C - Device for taking up drop stitches in knitted and hosiery goods : de en
  • AU2420848A - Improved collapsible table for use in automobiles : en
  • GB528909A - Improvements in or relating to molding apparatus : en
  • GB529070A - Improvements in preparation of 2-chlor-meta-5-xylenol : en
  • US2221620A - Copper smelting : en
  • DE698661C - Towel holder with swiveling arms : de en
  • GB529017A - Improvements relating to the production of rayon yarn : en
  • FR858059A - Use of a musical frequency current flowing through direct and alternating current installations : en fr
  • GB528979A - Improvements in or relating to electron discharge tubes : en
  • GB529035A - Improvements in the manufacture of artificial resins : en
  • US2221362A - Metal compounds of azo dyestijffs : en
  • FR858038A - Improvements to combustion engines : en fr
  • US2221579A - Voltage regulator : en
  • US2221740A - Manufacture of slide fastener elements : en
  • DE698710C - Device for testing the tension in the bolts of a screw connection when tightening : de en
  • GB528919A - Improvements in and relating to catalytic reaction apparatus : en
  • GB529061A - Improvements in valve mechanisms : en
  • US2221318A - Paint removal : en
  • US2221238A - Suction cup : en
  • CH212141A - Method for preventing frost damage to plants, in particular grapevines. : de en
  • US2220928A - Method of and apparatus for producing and utilizing radiant heat : en
  • USD123552S - Design for a sup : en
  • US2221566A - Reel : en
  • US2220973A - Electron microscope : en
  • US2220892A - Method of preparing ammonium nitrate explosives : en
  • DE698719C - Electrical connection cable : de en
  • FR50492E - Grease and process for making it : en fr
  • US2221381A - Fish lure : en
  • US2221492A - Tractor hitch : en
  • FR857974A - Method for performing photographic enlargements, in particular for high enlargement ratios : en fr
  • FR858004A - Secondary treatment process for suspensions of sulphurous condensation products : en fr
  • DE698679C - Bolt latch lock : de en
  • DE698544C - Filling device for floury or grainy substances : de en
  • DK58160C - Insert for Packing Boxes for Bottles and similar crazy Items. : da en
  • US2221393A - Variable speed control : en
  • GB529050A - Method for the manufacture and production of curled monofil : en
  • US2221300A - Ash tray : en
  • US2221666A - Periodic wave repeater : en
  • DE698545C - Device for air separation of coal or other dry or moist substances : de en
  • GB529006A - Improvements in or relating to a machine for cutting and punching or drilling : en
  • FR50474E - Safety device for the operation of parachutes : en fr
  • GB528852A - Container for gramophone records : en
  • USD123488S - Combined wall support and cover for an electric razor : en
  • USD123481S - Design for a heater : en
  • GB529005A - Improvements in machines for cutting up vegetables and fruit : en
  • GB529189A - Improvements in or relating to the production of artificial fibres : en
  • GB529118A - Improvements in and relating to electric fuses : en
  • GB528952A - Improvements in or relating to photographic copying and projection apparatus : en
  • USD123534S - Design fob a dress : en
  • IE16269L - Automatic telephony : en
  • ES4635Y - Steps with hardener band : en es
  • US2221534A - Method of making athletic balls : en
  • US2221420A - Article of manufacture : en
  • DE698471C - Device for driving the turntable in record recording and playback apparatus : de en
  • DK58150C - Method and apparatus for making a foot of glass or glassy material for airtight closure of containers. : da en
  • GB529151A - Improvements relating to warping machines : en
  • GB529024A - Improvements in fluid pressure operated implement : en
  • CA392492A - Tool orienting apparatus : en fr
  • CH212138A - Agricultural tractor. : de en
  • CH212173A - Device for the production of staple fiber tops from endless artificial fiber ribbons. : de en
  • GB528959A - Improvements in or relating to anti-adhesion compositions : en
  • NL88150B - : en
  • US2221515A - Window construction : en
  • US2221632A - Corner construction : en
  • US2221633A - Thermostatic apparatus : en
  • USD123501S - Design fob a passenger boat : en
  • US2221129A - Telegraph distortion measuring system : en
  • US2221447A - Electron multiplier : en
  • US2221392A - Core catcher : en
  • US2221503A - License plate holder : en
  • US2221700A - Noise limiting circuit : en
  • US2221032A - Polyvinyl acetal resin compositions containing butoxyethyl butoxyacetate : en
  • NL49593C - : en
  • FR857970A - Device for laundry, dyeing and other similar machines : en fr
  • USD123496S - Design for a chair base : en
  • DE698510C - Roller suspension ring for curtains : de en
  • DE698633C - Igniter with flying bodies : de en
  • DE698669C - Illuminated advertising device for passenger vehicles and other vehicles with a top : de en
  • FR50486E - Shoe sewing machine : en fr
  • DE698559C - High-voltage switch, consisting of a gas switch and a push disconnector : de en
  • GB529009A - Improvements in or relating to knitting machines : en
  • FR858043A - High speed propulsion on water : en fr
  • GB529063A - Improvements relating to slicing machines : en
  • GB529140A - Improvements in dyeing or printing with anthraquinone derivatives : en
  • US2221094A - Pickup tool : en
  • US2221485A - Flotation process : en
  • CH212152A - Process for the production of a binding agent, especially for road construction. : de en
  • DE698514C - Control device for internal combustion engines : de en
  • ES4625Y - A multiple school piggy bank : en es
  • GB529177A - Improvements in or relating to record-controlled photographic apparatus : en
  • DE698533C - Dry box for gravure paper webs : de en
  • DE698618C - sensitive devices : de en
  • FR50487E - Improvements to wooden boxes : en fr
  • FR857994A - Process for preparing aluminum sulphate : en fr
  • AT159798B - Process for increasing the adsorption power of hydrosilicates. : de en
  • US2221224A - Washer : en
  • US2221370A - Lock for fire extinguishers : en
  • DK58159C - Packing machine, preferably for Laying Eggs in Cardboard Trays. : da en
  • US2221429A - Method of making findings for pin stems : en
  • DE698713C - Two-chamber compressed air fluid separator : de en
  • GB528940A - Improvements relating to magnetic electric relays : en
  • US2221199A - Transmission control system and mechanism : en
  • US2221507A - Pad or covering for spring structures : en
  • CH212275A - A method of manufacturing an electrical resistance element and an electrical resistance element obtained by this process. : en fr
  • CA392509A - Vibratory motor device : en fr
  • CH212247A - Process for the production of metallic materials with high temperature starting recrystallization. : de en
  • GB528937A - Containers of paper and the like and method of making the same : en
  • US2221672A - Elastic fluid turbine bucket wheel : en
  • USD123514S - Thomas vehicle : en
  • CA392455A - Directional radio receiving installation : en fr
  • US2221327A - Pneumatic dough feeder : en
  • US2220894A - Luminous material and intensifying screen for x-rays and a method for manufacturing the same : en
  • FR858077A - Food preservation process : en fr
  • CH212154A - Oven. : en fr
  • GB528918A - Improvements in or relating to fuzeheads suitable for use in electric blasting detonators and electric fuzes, and for similar purposes : en
  • US2221125A - Fastening device : en
  • US2221706A - Breech construction and operation : en
  • US2221259A - Magnesium base alloy : en
  • DE698767C - Airplane wing with double slotted landing flap : de en
  • GB528982A - Improvements in and relating to grinding machines : en
  • DE698516C - Protective cap for spark plugs : de en
  • AT159765B - Two-stage rotary lobe vacuum pump with sickle-shaped working spaces and radially or approximately radially movable working slides. : de en
  • US2221542A - Storage battery construction : en
  • CA392430A - Tool holder assembly : en fr
  • AU155640A - Method of forming and maintaining a protective coating on metal surfaces : en
  • CH212159A - Method for preparing kindling wood. : de en
  • GB529225A - Method and apparatus for producing fire foam : en
  • CA392494A - Refrigerator car floor rack : en fr
  • CA392469A - Wireless aerial system : en fr
  • GB528911A - Improvements in or relating to the construction of aircraft : en
  • US2221130A - Method of making ingot mold plugs : en
  • US2221242A - Drill : en
  • DE698599C - Method and device for operating absorption refrigeration apparatus : de en
  • GB528906A - Air blast circuit breakers for high rated currents : en
  • GB529112A - Improvements in hydraulic accumulators adapted for use on aircraft : en
  • ES4653Y - A new cap that allows the liquid to be poured into the bottle : en es
  • FR50466E - Air mine launching and priming system for all applications : en fr
  • GR9337B - METHOD OF MANUFACTURE OF RESIN CONCENTRATION PRODUCTS. : el en
  • GB529211A - Improvements in or relating to electric heating apparatus, suitable for cooking and other purposes : en
  • ES4537Y - Capping device : en es
  • DE698475C - Four-stroke internal combustion engine with a combustion chamber arranged in the cylinder head : de en
  • US2221128A - Bathing brush : en
  • USD123521S - Design for a dress : en
  • GB529218A - Improvements in or relating to steam generators : en
  • GB528996A - Improvements relating to push-button control mechanisms : en
  • US2221208A - Process of making veneered tubing : en
  • GB529008A - Improvements in method and apparatus for carburetting air for internal combustion engines : en
  • US2220987A - Remoistening adhesive : en
  • US2221099A - Cultivator : en
  • US2221518A - Desalting system : en
  • FR50497E - Steering system for velocifera : en fr
  • GB529214A - Improvements in or relating to sewing machines, particularly button-sewing machines : en
  • CH212348A - Process for the preparation of an acidic triphenylmethane dye. : de en
  • DE698616C - Process for the production of synthetic resins : de en
  • CH212194A - Process for the production of condensation products of formaldehyde. : de en
  • AT159764B - Pneumatically or hydraulically operated unloading platform for vehicles. : de en
  • AU139981B2 - Improved collapsible table for use in automobiles : en
  • DE698689C - Device for cold drawing of pipes : de en
  • GB528983A - Improvements in and relating to electrode salt bath furnaces : en
  • CH212211A - Device for setting end pages on accounting typewriters. : de en
  • CA392483A - Metallic soap : en fr
  • FR858019A - Holding device for objects to be suspended in galvanic baths : en fr
  • US2220949A - Fuel feeding means for internal combustion engines : en
  • US2221282A - Preparation of lignin-phenol resin : en
  • US2220891A - Ammonium nitrate explosive composition : en
  • US2221734A - Means for feeding work in automatic screw machines : en
  • US2220997A - Apparatus for feeding material : en
  • CH212190A - Process for the preparation of a new oxyketone of the androstane series. : de en
  • CH212263A - Sealing device on water turbines. : de en
  • US2221406A - Animal trap : en
  • US2221584A - Control system : en
  • DE698757C - Bearing body for the installation of ball, roller, joint or similar bearings : de en
  • GB529213A - Improved method of and means for delivering measured quantities of liquids : en
  • DK58157C - Automatic firearm with two or more barrels. : da en
  • US2221271A - Alkyl and cycloalkyl derivatives of 1,3-dimethyl-1,3-diphenyl-cyclobutane : en
  • US2221656A - Shirt construction : en
  • US2221661A - Speed control for sound record medium : en
  • US2221718A - Exchangeable heel : en
  • USD123489S - Design for a wallpaper : en
  • DE698690C - Painter's brush : de en
  • AU111850B2 - Improvements relating to light signals : en
  • DE698526C - Height-adjustable steering wheel for motor vehicles : de en
  • CA392458A - Ether stabilization : en fr
  • AT159776B - Process for the automatic regulation of the frequency of high frequency oscillations. : de en
  • CA392405A - Sulpho-carboxylic ester preparation : en fr
  • FR858095A - Azo dyes : en fr
  • US2221709A - Borosilicate glass : en
  • DE698527C - Braking device with two brake shoes, which are carried along by the brake drum in the circumferential direction when the brake is applied and, depending on the direction of rotation, are supported against one or the other of two anchor devices fixed on the back plate : de en
  • DE698621C - Machine controlled by payment cards with adding and printing unit : de en
  • AT159774B - Winding or layer capacitor. : de en
  • DE698457C - n by means of centrifugal force controlled carbon column resistors : de en
  • CH212180A - Knitting process and machine for performing the same. : de en
  • US2220979A - Signal device : en
  • US2221495A - Straight bar knitting machine : en
  • US2221277A - Wire stretcher : en
  • US2221646A - Soldering device : en
  • US2221605A - Rotor : en
  • FR858089A - Multiple radiotelegraph transmission and reception method and device : en fr
  • GB528926A - Improvements in control gear for a.c. commutator motors : en
  • GB528984A - Improvements in goggles : en
  • US2221729A - Valve : en
  • CA392485A - Tire chain tool : en fr
  • DE698782C - Process to improve the spinnability of rayon from regenerated cellulose : de en
  • CH212358A - Process for preparing a water-soluble sulfonic acid amide compound. : de en
  • US2221314A - Hair cutting implement : en
  • US2221324A - Control device : en
  • CH212195A - Process for the preparation of trichloroacetonitrile. : de en
  • US2221056A - Jar-holding device : en
  • AT159788B - Device for quench hardening of rail heads or a longitudinal surface of similar elongated workpieces. : de en
  • CH212293A - Accounting apparatus. : de en
  • DE698453C - Paving machine : de en
  • CA392480A - Compressed and densified product : en fr
  • CA392423A - Dental surveyor and designer : en fr
  • CH212273A - Transformer for feeding multiphase power converters with anodes working in parallel. : de en
  • CH212188A - Glass liquid filling device with a hand-operated stopcock piston that is adjustable in a cylinder and has at least one flow line. : de en
  • FR858100A - High pressure cylinder with single acting piston : en fr
  • DE698680C - Process for obtaining mechanically strong slags : de en
  • US2221321A - Colostomy appliance : en
  • CH212193A - Process for the preparation of an α-dicarbonyl compound of the cyclopentanopolyhydrophenanthrene series. : de en
  • US2221435A - Container filling machine : en
  • US2221712A - Safety casement sash upper lock : en
  • FR857988A - Flexible ducts for vacuum cleaning devices : en fr
  • AU1097843A - Improvements inthe curing and packaging of cheese : en
  • US2221016A - Machine for storing and vending refrigerated articles : en
  • US2221597A - Heat treating : en
  • US2220994A - Check mechanism : en
  • US2221030A - Camera objective attaching mechanism : en
  • US2221105A - Electric filter : en
  • US2221484A - Method for bonding surfaces : en
  • US2221526A - Process for heat treating aluminum alloys : en
  • US2221569A - Direct current welding with tube control : en
  • US2221663A - Polymeric dimethallyl maleate : en
  • US2220935A - Racket : en
  • CA392499A - Ophthalmic mounting : en fr
  • AU111864B2 - Improvements in or relating tothe reduction of magnesium : en
  • CA392503A - Heel manufacture : en fr
  • CH212178A - Loom without shuttle. : en fr
  • CA392433A - Electric power transmission : en fr
  • US2221164A - Combustion control : en
  • US2221524A - Electric valve circuit : en
  • US2221645A - Game apparatus : en
  • USD123528S - Design fob a dress : en
  • AT159757B - Clamping device for gripping or coupling cylindrically drilled hollow bodies, in particular overrunning clutch. : de en
  • DE698502C - Adapter plug : de en
  • DE698552C - Lid without top lid for electrical collectors to avoid gas accumulation spaces : de en
  • DE698760C - Demonstration device for circulating, internal or written carriers : de en
  • GB529166A - Improvements in purifying solutions of manganese salts : en
  • US2221743A - Magnetic volume control : en
  • CH212351A - Electron tubes, especially for amplifying very high frequencies. : de en
  • DE698352C - Relocated keeled aircraft swimmer : de en
  • CA392451A - Filament manufacturing apparatus : en fr
  • CH212334A - Process for the production of a nitrogen-containing naphthalene derivative. : de en
  • GB528958A - Improvements in or relating to the control of electric induction motors : en
  • DE698766C - Process for the production of films for black and white projection : de en
  • US2220925A - Separation of materials of different specific gravities : en
  • US2221380A - Method of renovating used oil and system containing same : en
  • DE698703C - : de en
  • FR858042A - Improvement in the manufacture of wooden shutters : en fr
  • DE698631C - Closure for motor vehicle doors u. like : de en
  • DE698659C - Use of an alloy for casting bells : de en
  • FR50467E - Remote clutch control system by compressed air, known as constant pressure : en fr
  • US2221012A - Toy glider : en
  • US2221637A - Honing apparatus : en
  • US2221736A - Ophthalmic mounting : en
  • US2221046A - Animal stall : en
  • US2221502A - Process of forming screens : en
  • FR858027A - Process for stabilizing hydrochloride and other rubber hydrohalides and resulting products : en fr
  • FR857956A - Folding camera with lens shutter operated from the box : en fr
  • DE698706C - Deceleration brake control with braking force controlled as a function of the speed : de en
  • DE698764C - Film measuring device : de en
  • FR858031A - Further training in the manufacture of artillery casings : en fr
  • CA392453A - Electric discharge device : en fr
  • CH212238A - Sub-storage in measuring devices such as electricity meters. : de en
  • GB529104A - Improvements in tumbling barrels : en
  • GB529190A - Improvements relating to the production of fibrous material : en
  • DE677374C - Headbox for paper machines : de en
  • GB528923A - Improvements in or relating to trawling gear : en
  • CH212261A - Axial multi-stage turbomachine. : de en
  • DE698571C - Preservation of green fodder : de en
  • GB529045A - Improvements in and relating to dynamo electric machines : en
  • GB529192A - Improvements in or relating to means for fixing rails to sleepers : en
  • CH212304A - Cathode ray image decomposer. : de en
  • CA392476A - Wire feed roll mechanism : en fr
  • US2221063A - Indication for cash registers and accounting machines : en
  • GB528933A - Improvements in or relating to lifting jacks : en
  • GB528973A - Improvements in or relating to group-control mechanism for record-controlled statistical machines : en
  • GB528985A - Improvements in and relating to racket stringing machines : en
  • FR50489E - Process for the preparation of aliphatic polyureas : en fr
  • US2221266A - Material spreader : en
  • US2221517A - Electric valve circuits : en
  • USD123510S - Design foe, a dustpan : en
  • US2221602A - Network system of distribution : en
  • FR857981A - Improvements to thermostats : en fr
  • GB529143A - Improvements in work stops for automatic lathes : en
  • CA392456A - Television receiver : en fr
  • CA392524A - Clutch or brake cooling means : en fr
  • USD123522S - Design for a robe : en
  • US2221685A - Elastic fluid turbine bucket unit : en
  • DE698484C - Centrifugal pump for alternating delivery in both directions of rotation : de en
  • DE698577C - Double-acting, mechanically or by air or fluid pressure operated two-jaw brake for motor vehicles : de en
  • US2220989A - Well cleanout bailer : en
  • US2221257A - Magnesium base alloy : en
  • US2221660A - Telephone system : en
  • US2220946A - Keyboard mechanism : en
  • GB529200A - Improvements in and relating to means for erecting cartons : en
  • GB528924A - Improvements in paper carrier frames for use in connection with typewriters : en
  • GB529033A - Improvements in and relating to the manufacture of photographic light-sensitive elements : en
  • DE698777C - Drafting system with two endless straps working together : de en
  • DE698670C - Cinema gripper adjustable to different switching heights : de en
  • US2220955A - Combination collar button and necktie support : en
  • US2221501A - Rotary pump : en
  • US2221689A - Method for tendering meat : en
  • DE698447C - Diaphragm pressure regulator for internal combustion engines operated with compressed gas : de en
  • CH212345A - Process for the preparation of a new ester of the dihydrooestrine series with a free phenolic hydroxyl group. : de en
  • US2221298A - Rack covering : en
  • DE698561C - Current interruption device in which iodine is arranged near a fusible conductor : de en
  • US2220962A - Pervious resilient material : en
  • US2221479A - Belt tightener of the spring type : en
  • GB528929A - Piston rod guide and packing on devices for conveying liquid and gaseous substances : en
  • GB529051A - Improvements in or relating to sheet-feeding mechanism for printing machines : en
  • FR50470E - Advanced projection device : en fr
  • FR858090A - Process for de-inking printed papers for their transformation into pulp : en fr
  • GB529082A - Improvements in chromanes and method of producing the same : en
  • GB529149A - Improvements in and relating to thermal safety devices for electric heating elements : en
  • GB529176A - Improvements in or relating to the arrangement of vertical-shaft centrifugal pumps with direct coupled electric driving motors : en
  • GB529162A - Improvements relating to milling machines : en
  • DE698580C - Arrangement with masses swinging back and forth, especially alarm clock : de en
  • GB529185A - Improvements in and relating to pipe connections : en
  • GB528948A - Improvements in tubular heat exchangers intended particularly for heating air by hot water or steam : en
  • US2221283A - Corner reinforcing plate : en
  • DE698515C - Cylinder lubrication for two-stroke internal combustion engines : de en
  • FR858001A - Electrical communication system : en fr
  • US2220890A - Traction vehicle : en
  • GB528913A - Improvements in or relating to suction cleaners : en
  • USD123490S - Design fob a blade sharpener : en
  • GB528943A - Improvements in or relating to electric lamp fittings with lamp locking devices : en
  • US2220909A - Cathode sleeve for thermionic valves : en
  • US2220984A - Shaft packing : en
  • US2221227A - Curler : en
  • US2221580A - Relay circuit : en
  • US2221629A - Reflecting electric lamp : en
  • US2221683A - Process for the purifying of liquids with the aid of active carbonaceous colloids : en
  • US2220940A - Telephone recording system : en
  • DE698709C - Method for testing the adhesion of the cladding to clad sheets : de en
  • US2221445A - Stove support : en
  • DE686236C - Contact device and switching mechanism with tilting action for electrical clocks : de en
  • DK58153C - Storage comb for knitting machines. : da en
  • FR857951A - Electron tube, in particular electron ray tube : en fr
  • DE698619C - Suction and discharge device for pipettes : de en
  • DE698652C - Process for the electrical welding of seams on workpieces, in particular on thin sheets of any metal, and device for its implementation : de en
  • FR50500E - Incandescent cartridge stove : en fr
  • DE698715C - Wind direction recorder : de en
  • FR50468E - advanced heat exchanger : en fr
  • FR858041A - Improvements to means for the establishment of roadblocks, in particular against aircraft, using wires : en fr
  • DE698455C - Circuit arrangement for regulating the dynamics in sound transmission systems : de en
  • AT159756B - Slot-controlled injection pump, in particular for internal combustion engines. : de en
  • DE698575C - Adjustment device for the clutch, especially of motor vehicles : de en
  • US2221608A - Switch structure : en
  • FR858093A - Battle Tank : en fr
  • US2221058A - Window : en
  • US2221374A - X-ray projection device : en
  • US2220959A - Scum remover : en
  • US2221191A - Water color box : en
  • US2221596A - Method of manufacturing dry rectifiers : en
  • AU490639A - Shortwave radio transmitter : en
  • CH212175A - Device for the production of wound bodies. : de en
  • US2220951A - Rheostat for electrical measuring circuits : en
  • US2221047A - Push button switch : en
  • FR857969A - Indicator device for permanent indication echosensor : en fr
  • US2220971A - Method of finishing cake : en
  • USD123540S - Design for a golf exerciser : en
  • GB529154A - Improvements in and relating to the dispensing of oil : en
  • DE698574C - Fine filter materials for breathing apparatus with ultraviolet light and with air or with air-oxygen mixtures : de en
  • GB529086A - Improvements in road studs : en
  • US2221692A - Separation process : en
  • DE698467C - Thermometer arrangement on roasting, oven doors or the like. : de en
  • FR50493E - Improvements to discharge tubes : en fr
  • FR858011A - Crankshaft for internal combustion engines and the like : en fr
  • FR858017A - Process for manufacturing partially dehydrated copper sulphate : en fr
  • GB529188A - Improvements in and relating to frames for handbags and the like : en
  • DE698770C - : de en
  • US2221311A - Automatic steering for ships and other craft : en
  • FR50451E - Improvements to air navigation devices : en fr
  • DE698468C - Drive for stage wagons running on rails : de en
  • FR858048A - Device for controlling and measuring the electrical and dielectric constants of the various ignition components of gas mixtures in internal combustion engines : en fr
  • DE698570C - to tighten : de en
  • DE698623C - Turret punch with a tool carrier around a horizontal axis : de en
  • US2221376A - Rotary drilling equipment : en
  • US2221453A - Packing : en
  • US2221551A - Absorption refrigerating apparatus : en
  • DE698474C - Process for the preparation of an adhesive for fungicides and insecticides : de en
  • US2221013A - Feed trough for poultry : en
  • US2221014A - Clutch and brake unit : en
  • US2221388A - Boot and shoe heel construction : en
  • FR50455E - Oenological process and devices carrying out a nycthemeral and perfected wine production : en fr
  • US2221599A - Shaver-type motor : en
  • CH212240A - Optical device for color photography and cinematography. : en fr
  • DE698608C - Plug pulling device : de en
  • CA392443A - Aluminium and alloy surface : en fr
  • US2221339A - Utilization of metallo-organic compounds for treatment of circulating waters and surfaces coming into contact with water : en
  • US2221559A - Process for bleaching oils, fats and waxes : en
  • USD123498S - Design for a bait pennant : en
  • US2221048A - Support for floor screeds : en
  • US2221733A - Cone and nicker arrangement for cigar machines : en
  • DE698473C - Hydraulic or pneumatic relay : de en
  • DE698604C - Switching device controlled by differences in liquid levels : de en
  • GB529067A - Process for the manufacturing of rubber floor covering and rubber floor coverings manufactured according to said process : en
  • AU1623844A - Improvements in or relating to collet chuck : en
  • US2221021A - Centering spring for range finder brackets : en
  • US2221265A - Film holding device : en
  • CA392420A - Hot water radiator : en fr
  • CA392440A - Ophthalmic mounting : en fr
  • US2221536A - Motor carrier for power shellers : en
  • US2221574A - Machining tool : en
  • US2221444A - Process of and appabatus fob : en
  • CH212143A - Vacuum cleaning cattle brush. : de en
  • CH212202A - Process for the production of metal-containing azo dyes. : de en
  • DE698477C - Device to achieve the same hardness and smoothness at all points during the electrolytic copper plating of printing cylinders and rollers : de en
  • CH212361A - Process for preparing a water-soluble sulfonic acid amide compound. : de en
  • US2220980A - Parasiticide : en
  • AU111855B2 - Improvements relating to carrier wave transmission systems : en
  • AU1620044A - Improvements relating to traps for rats and mice : en
  • DE698566C - Device for producing a multilayer, shatterproof glass : de en
  • DE698681C - Building mass bound by cement or sorel cement : de en
  • AU122611B2 - Improvements relating to the supply of air-fuel mixture to internal combustion engines : en
  • AU547439A - Improvements in straw walkers for harvesting machines : en
  • CH212350A - System for achieving a cycle of purified air in common rooms for the collective protection of people against poison gas. : de en
  • CA392441A - Liquid dispensing apparatus : en fr
  • CA392448A - Polyphase transformer tap-changing mechanism : en fr
  • US2221240A - Toy machine gun : en
  • US2221472A - Auxiliary engine feeding device : en
  • GB529099A - Improvements in or relating to light modulating devices : en
  • CH212155A - Bath shower. : de en
  • CH212357A - Process for the preparation of a derivative of 6-oxy-8-aminoquinoline. : de en
  • US2221069A - Saw tooth wave generator : en
  • AU111861B2 - Improvements in or relating to beverage brewing devices : en
  • DE698629C - e adjusting screw : de en
  • CH212236A - Equipment on measuring devices that periodically register measured values given in pulses and store incoming pulses during the registration process. : de en
  • GB529090A - Arrangement for varying the tuning of an oscillatory electric circuit : en
  • DE698463C - Device for generating carbon black : de en
  • CH212153A - Device for automatic adjustment of the temperature of the heated liquid in heat storage appliances of the boiler type. : en fr
  • CH212229A - Barricade. : de en
  • CA392442A - Graining machine : en fr
  • ES4649Y - A pocket letter scale : en es
  • FR50458E - Method for detecting or measuring variations in capacitance of a capacitor and application to the gauging of liquids, to the measurement or comparison of liquid levels, or of fluid pressures : en fr
  • FR858067A - Improvements to cycle derailleurs : en fr
  • GB529044A - Improvements in electric circuits comprising electronic discharge devices : en
  • CH212272A - Device for controlling electric motors. : de en
  • AU122673B2 - Improvements in or relating to welding rods : en
  • US2220923A - Drafting instrument : en
  • US2221326A - Protective device for clamp screws : en
  • DE698493C - Ignition preparations for lighting candles or groups of candles, in particular Christmas tree candles : de en
  • DE698725C - Continuously operated purge gas furnace : de en
  • DE698597C - Process for the production of ethyleneimides of organic sulfonic acids : de en
  • DE698683C - Steel for objects that have to be resistant to the decarburizing attack of gases : de en
  • DK58146C - Procedure and Apparatus for Treatment of Waste Materials by Anaerobic Transformation. : da en
  • FR858035A - Improvements to automatic unblocking devices for projectiles against aerial targets : en fr
  • GB528931A - Improvements in fluid dispensing apparatus : en
  • US2221353A - Process for treating oil wells : en
  • US2221480A - Gravity measurements : en
  • GB528961A - Improvements in target aeroplanes : en
  • US2220919A - Coke oven battery : en
  • US2220988A - Adhesive of the remoistening type : en
  • CH212230A - Marching compass. : de en
  • CH212215A - Cinematographic image playback device. : de en
  • GB529059A - Improvements in or relating to air pumps : en
  • DE698637C - Cutting device for bricks : de en
  • GB529205A - Improvements in creeling arrangements for warping machines : en
  • US2220908A - Production of colored photographic images by color development : en
  • GB529074A - Improvements in and relating to electric discharge devices : en
  • AT159768B - Ultra-short wave tube. : de en
  • CH212220A - Tennis racket. : en fr
  • ES4608Y - Reflector for lighting apparatus : en es
  • FR50475E - Pneumatic purification table : en fr
  • FR858008A - Projection method and apparatus : en fr
  • DE685985C - Method for joining wooden blocks to form wooden panels : de en
  • DE698691C - Rail fastening for the expressing and tampering machine train of horizontal coke ovens : de en
  • FR858028A - Bolt and nut type fastener : en fr
  • IE15970L - Metal netting : en
  • US2220885A - Record projector : en
  • US2221496A - Sealing means for liquids : en
  • DE698711C - Jet pipe force switch : de en
  • CA392489A - Electric commutation system : en fr
  • US2221355A - Cooking material receptacle and spoon leveler : en
  • US2221153A - Sheet feeder : en
  • US2221218A - Negative holder for photographic enlargers : en
  • DE698560C - electrical supply circuits : de en
  • DE698653C - Cleaning agents, especially for wood, linoleum and parquet : de en
  • DE698496C - Process to prevent scale formation : de en
  • US2221055A - Apparatus for preparing a film strip for the inspection of a series of consecutive impressions of light on the sensitive layer of same : en
  • US2221664A - Safety lock : en
  • US2221377A - Substituted ammonium salts of sulphocarboxylic acid esters : en
  • DE698773C - Can cleaning device : de en
  • CH212246A - Steel for aeronautical, naval, railway, automobile constructions, etc. : en fr
  • GB529142A - Improvements in or relating to the treatment of artificial filaments, threads, ribbons, fabrics and like materials : en
  • DE698781C - Device for Leonard drives to achieve a clear dependence of the engine speed on the setting of the control lever : de en
  • AU122651B2 - Apparatus for separating suspended particles from gaseous media : en
  • CA392497A - Door pre-lift device : en fr
  • DE698617C - Use of a zinc alloy : de en
  • GB529053A - Improvements in or relating to statistical machines photoelectrically controlled by records : en
  • DK58154C - Dry Gas Meter. : da en
  • US2221313A - Hydraulic control system : en
  • US2221563A - Food composition : en
  • FR857960A - Advanced vault : en fr
  • GB529187A - Improvements in and relating to sheet metal pulleys : en
  • US2221568A - Roll film camera : en
  • USD123529S - Design fob a dress : en
  • FR858060A - Complex biscuit for the instant preparation of soups : en fr
  • GB529062A - Improvements in typographical slug casting machines : en
  • GB529210A - A process for splitting up mixtures of chemically related organic substances : en
  • GB529172A - Quick release pipe couplings : en
  • GB529135A - Improvements in and relating to bessemer converters : en
  • DE698626C - Winding motor assembly on film cassettes or film spools : de en
  • DE698716C - Wrist watch : de en
  • AU1455244A - Improvements in electric oscillators : en
  • GB529173A - Covers for the ribbon spools of typewriters : en
  • GB529132A - Improvements in or relating to phase displacing circuit arrangements : en
  • DE698598C - Device for generating cold : de en
  • GR9340B - FRAME - ANTENNA. : el en
  • US2221531A - Storm window fastener : en
  • US2221156A - Two-cycle diesel engine : en
  • US2221182A - Sun visor : en
  • US2221426A - Built-up container : en
  • US2221514A - Roller bearing : en
  • DE698700C - Arrangement for reducing the control power of direct current generators : de en
  • GB529229A - Improvements in, or relating to, devices for indicating continuously the ratio between two independent variables : en
  • US2221210A - Filter for dry cleaner solvents : en
  • CH212291A - Process for the production of a foaming agent. : de en
  • US2221586A - Regulator : en
  • FR50490E - Water purification process : en fr
  • FR858003A - Convertible seat : en fr
  • GB528967A - A method of and means for colour comparison : en
  • CH212196A - Process for the production of melamine. : de en
  • CH212335A - Process for the production of a nitrogen-containing naphthalene derivative. : de en
  • CA392525A - Hide preparing process : en fr
  • GB529105A - Improvements in or relating to building bricks : en
  • GB529001A - Improvements in or connected with throttle valves for carburetters and other conduits : en
  • CA392418A - Stove baffle : en fr
  • CA392465A - Container filling machine : en fr
  • AU111860B2 - Improvements in or relating to rubber composition and method of preserving rubber : en
  • USD123530S - Ewart pneumatic tire : en
  • DE698694C - Coin totaling device for self-sellers, in particular coin telephones : de en
  • US2221194A - Decorative object : en
  • USD123545S - Design fob a scarf or similar article : en
  • AU122666B2 - Improvements in and relating to wrenches : en
  • CA392439A - Tire chain : en fr
  • CA392463A - Colour photography : en fr
  • CA392507A - Aluminothermic smelting process : en fr
  • AU490039A - Improved collapsible tops for vehicle bodies : en
  • AU102340A - Improvements relating to light signals : en
  • CA392516A - Window rubber mounting : en fr
  • GB529206A - Improvements in and relating to electric motor control systems : en
  • CH212248A - Flexible pleated tube. : de en
  • DE698645C - Circuit of an electron beam indicator : de en
  • US2220958A - Tensioned yarn and thread and method of forming same : en
  • US2221134A - Support for casket lowering apparatus : en
  • US2221390A - Apparatus for and a method of making coils : en
  • US2221195A - Flue cleaner : en
  • USD123525S - Design for a dress : en
  • CH212184A - Machine for washing goods such as fabrics. : en fr
  • CH212285A - Process for the preparation of a molecular compound. : de en
  • US2221235A - Resistor unit : en
  • US2221576A - Welding system : en
  • US2221737A - Lens edging machine : en
  • CA392412A - Candle extinguisher : en fr
  • FR857979A - Oscillating lane motor with twin compressed air control : en fr
  • AU122644B2 - Manually operated air pump : en
  • CH212142A - Plant container. : de en
  • DE698728C - Process for the preparation of diguanidine salts : de en
  • CA392517A - Window connector strip : en fr
  • US2221245A - Magnesium base alloy : en
  • USD123520S - Design fob a dress : en
  • CH212343A - Process for the preparation of a nitrogen-containing naphthalene derivative. : de en
  • CH212346A - Process for the preparation of a monoazo dye sulfonic acid. : de en
  • CH212200A - Process for the preparation of di- (p-aminobenzenesulfone) -amide. : en fr
  • CH212325A - Machine gun mounts on aircraft. : de en
  • USD123538S - Design fob a dress : en
  • CH212183A - Resistant preparation suitable for vat dye printing. : de en
  • US2221678A - Elastic fluid turbine bucket wheel : en
  • DK58158C - Device for sending alarm signals. : da en
  • AT159771B - Procedure for interrupting the current in multi-anode power converters. : de en
  • AT159769B - Forming arrangement. : de en
  • AU37840A - Improvements in or relating to beverage brewing devices : en
  • CA392464A - Fireplace : en fr
  • CA392471A - Asbestos and glass fibre yarn : en fr
  • DE698591C - Folding camera : de en
  • CA392435A - Hay unloader : en fr
  • CH212302A - Method and arrangement for generating pulses. : de en
  • US2221304A - Rubber compound : en
  • US2221284A - Pipe coupling : en
  • US2221548A - Method of making propeller blades : en
  • CA392488A - Air humidifying apparatus : en fr
  • CH212317A - Bicycle stand. : de en
  • USD123553S - Design for a hassock : en
  • US2221622A - Purification of manganese : en
  • US2221202A - Cushion foot support for shoes : en
  • US2221469A - Pipe still furnace and method of heating hydrocarbons : en
  • US2221460A - Power operated collapsible vehicle top : en
  • FR858065A - Improvements to mixer-enrichers and scrubbers for wood gasifiers : en fr
  • GB529094A - Building material : en
  • GB529209A - Improvements in and relating to the reclaiming of oil and the like : en
  • GB528934A - Improvements in electric circuit breakers of the gas blast type : en
  • GB528942A - Improvements relating to screw-down taps : en
  • GB529191A - A device for protecting a human being against rain : en
  • USD123511S - De sign fob a parachute pack : en
  • US2221454A - Mining machine : en
  • US2221494A - Spraying machine : en
  • USD123497S - Design for a flytrap : en
  • GB528915A - Manufacture of amidines : en
  • GB529130A - Manufacture of new anilides : en
  • DE698589C - Silencer for intake and exhaust sound with sound reflection and interference of the incoming and reflected sound, especially for internal combustion engines : de en
  • GB528946A - Improvements in or relating to copying devices : en
  • DK58145C - Process for the Preparation of N-Pyrimidylalkyl-thiazolium compounds. : da en
  • FR857975A - Improvements to skis : en fr
  • FR857955A - Process for applying a protective cement-based coating to surfaces : en fr
  • US2221045A - Brooder : en
  • US2221246A - Magnesium base alloy : en
  • US2221286A - Electric contact : en
  • US2221360A - Metal compounds of azo dyestutfs : en
  • US2221601A - Ionizing wire support, especially for electrical precipitators : en
  • DE698581C - Process for the preparation of a citric acid soluble phosphate fertilizer : de en
  • FR857966A - Process for obtaining protective coatings on magnesium and magnesium alloys which can be colored : en fr
  • CH212326A - Vehicle, in particular aircraft, with brake bodies. : de en
  • CH212355A - Process for the preparation of 1-ss- (p-oxyphenyl) -isopropylmethylamine. : de en
  • CH212359A - Process for preparing a water-soluble sulfonic acid amide compound. : de en
  • DE698722C - Air storage diesel engine : de en
  • GB529160A - Improvements in, and connected with, saddles for cycles : en
  • IE15944L - Luminescent materials : en
  • FR858044A - Process and composition applicable in particular to the protection of coatings such as nitro or aceto-cellulosic coatings used in aeronautical constructions : en fr
  • GB529069A - Improvements in or relating to clamping bolt fastenings for securing lids and the like : en
  • US2221613A - Propeller having an automatically variable pitch : en
  • FR858070A - Device for maneuvering automatic skips : en fr
  • GB528966A - Improvements in soot blowers for steam generators : en
  • DE698749C - Floor care device : de en
  • US2221317A - Angle-measuring instrument : en
  • US2221417A - Means for finishing bends : en
  • US2221183A - Method of sweetening petroleum distillates : en
  • FR858099A - Transparent or translucent heels for ladies' shoes : en fr
  • GB529222A - Bottle closing device : en
  • DE698506C - Electric gas switch : de en
  • DE698518C - Metallic sealing body, which seals by pressure and permanent deformation : de en
  • US2221717A - Air cleaner : en
  • ES4650Y - A multi-plane visor for claims : en es
  • DK58151C - Electric Discharge Tube for Optical Indication of Voltages. : da en
  • FR857990A - Improvements in the mills : en fr
  • GB529032A - Improvements in or relating to corner beads for use in plastering and like operations : en
  • US2221025A - Color correction process and product : en
  • US2221102A - Push-pull amplifier circuit : en
  • US2221211A - Ash receptacle and lighter : en
  • US2221319A - Magnesium base alloy : en
  • US2221430A - Upper lasting plate : en
  • US2221549A - Tractor implement : en
  • GB528902A - Improvements in grinding or abrading machines : en
  • DE698754C - Screen cabinet : de en
  • GB528954A - Apparatus for mixing fluid : en
  • FR50454E - New application of prepaid games and devices in combination with classic or similar draw lotteries and concomitant modifications of said games and devices : en fr
  • GB529003A - Improvements relating to folding windows : en
  • GB529049A - Improvements in telephone or like systems : en
  • GB529058A - Meat suspending device : en
  • DE698601C - Chimney for steel works converter : de en
  • GB529042A - Improvements in the stuffing boxes of sluice and stop valves : en
  • GB529076A - Improvements in and relating to vehicle bodies : en
  • DE698630C - Paddle wheel with narrow, moving blades : de en
  • US2220903A - Printing machine : en
  • US2221471A - Furnace : en
  • US2221720A - Electric circuit interrupter : en
  • DE698521C - Envelope, bag or the like : de en
  • GB529037A - Improvements in or relating to plate heat exchangers suitable for heating air : en
  • GB529119A - Improvements in and relating to electric discharge lamp circuits : en
  • DE698649C - Fusible conductor arrangement for short-circuit proof cartridges of electrical fuses : de en
  • DE698744C - Protective mask for welders, solderers or the like. : de en
  • US2221465A - Cartridge for oil filters : en
  • AU521539A - Improvements relating tothe production of composite articles of rubber and fabric : en
  • US2221340A - Process for the separation of dihydro-equilin and estradiol : en
  • US2221427A - Swab : en
  • DE698761C - Hollow upholstery needle : de en
  • FR858071A - Spiral knife cutter for wood and other materials : en fr
  • GB529125A - Improvements in and relating to the method of producing on a straight-bar knitting frame a stocking having a french foot the sole portions of which are knit in connection with the heel portions in one operation : en
  • US2221422A - Electric soldering iron : en
  • US2221019A - Coating of film bases : en
  • US2221539A - Apparatus for handling propeller blade blanks : en
  • FR50478E - Equipment for the rational extraction and saturation of juices, mainly from sugar refineries or cider mills : en fr
  • FR50462E - Insulator for high voltage overhead lines : en fr
  • FR858085A - High frequency electric wave transmission systems : en fr
  • US2221458A - Cutter head : en
  • DE698531C - Shower head with an insert plug that can be adjusted by hand in the longitudinal direction of the head : de en
  • FR857989A - Transmission system, consisting of a coaxial cable and amplifiers : en fr
  • GB529124A - Device for adjusting wrapping sheets on wrapping machines : en
  • FR857999A - Process for the production of aromatic alkenylated hydroxycarboxylic acids : en fr
  • GB529048A - Improvements in automatic switches for use in telephone or like systems : en
  • CH212338A - Process for the preparation of a polyoxy compound of the cyclopentanopolyhydrophenanthrene series. : de en
  • DE698603C - Protective box made of sheet iron for pupin coils : de en
  • FR858013A - Support consoles for liquid manure barrels : en fr
  • US2221189A - Rotary pump : en
  • US2221357A - Extensible and flexible barricade : en
  • US2221714A - Brake rigging : en
  • US2221331A - Direction indicator for automobiles : en
  • US2221337A - Game apparatus : en
  • CH212210A - Process for the production of printing forms and intermediate forms therefor. : de en
  • DE698582C - Steel aluminum contact wire : de en
  • DE698717C - Hydrostatic weir : de en
  • FR858012A - Spool valve pneumatic dressing hammer : en fr
  • US2220916A - Spring suspension : en
  • FR857984A - Injection nozzle : en fr
  • FR858052A - Carburetor for aviation engine : en fr
  • FR858030A - Film with paper extension : en fr
  • FR858032A - Silencer for firearms : en fr
  • FR858083A - Improvements to motion transmission devices : en fr
  • GB529091A - Apparatus for making electrolyte material for electric cells : en
  • GB529203A - Improvements in luminescent materials : en
  • DE698542C - Copier : de en
  • GB529147A - Improvements in and relating to electric discharge devices : en
  • US2221611A - Current collector : en
  • US2221668A - Flexible shaft coupling : en
  • US2220898A - Flexible plywood construction : en
  • US2221022A - Rotary staple cutting machine : en
  • US2221190A - Reverse lock for vehicles : en
  • USD123518S - Design for a dress : en
  • US2221020A - Azo compounds and material colored therewith : en
  • US2221127A - Temperature control means for gear cutting : en
  • US2221256A - Magnesium base alloy : en
  • US2221111A - Folding gocart : en
  • DE698501C - Spring clamp for electrical lines : de en
  • DE698741C - Overload bars three-part fuse : de en
  • US2220975A - Concrete pipe manufacturing machine : en
  • US2221275A - Halo-aliphatic esters of 2-chloroallyl alcohol : en
  • DE698720C - Process for the recovery of copper from waste water from the manufacture of copper artificial silk : de en
  • GB529207A - Improvements in and relating to tap-changing arrangements for windings of alternating current apparatus : en
  • USD123519S - Design for a dress : en
  • US2220895A - Glow discharge device : en
  • USD123551S - Design for a wallpaper : en
  • DE698632C - Nail feeding device for shoe machines : de en
  • FR857957A - Liquid cooled cylindrical discharge vessel : en fr
  • FR858073A - Improvements made to lifting surfaces for aerodynes : en fr
  • FR858088A - Bag printing process or others : en fr
  • CH212307A - Apparatus for transmitting firing orders. : en fr
  • CH212353A - Process for the preparation of a condensation product from trimethylhydroquinone and phytol. : de en
  • AT159787B - Handle arrangement on devices with vibrating and striking forces. : de en
  • US2221528A - Electric switch : en
  • US2221295A - Trouble light holder and switch : en
  • AT159800B - Process for the production of single and multi-colored overhead and see-through images. : de en
  • CA392479A - Synthetic thread and fibre production : en fr
  • AT159794B - Alloyed steel. : de en
  • US2221624A - Treatment of manganese alloys : en
  • US2221547A - Heat protected pitot-static tube : en
  • DE698612C - walls : de en
  • GB529107A - Improvements in or relating to magnets : en
  • US2221567A - Turbogenerator rotor : en
  • US2221352A - Fuel vaporizer : en
  • US2221120A - Closure : en
  • US2221499A - Sound-deadening composition : en
  • US2221665A - Periodic wave generator : en
  • US2221192A - Nail and separator removing spade : en
  • DE698721C - Process for killing the grain beetle and other grain pests : de en
  • CH212298A - System for carrier-frequency messaging. : de en
  • USD123478S - Design for a textile fabric : en
  • DK58148C - Procedure for Operating Cathode Ray Tubes. : da en
  • FR858005A - Winding wire guide drum : en fr
  • CH212301A - Method for transmitting messages by means of frequency-modulated carrier waves. : de en
  • DE646869C - Negative electrode for alkaline collectors : de en
  • DE698595C - Portal structure for sheet metal stretching presses : de en
  • FR858079A - Improvements to the pressure devices of stretching systems for fiber materials : en fr
  • GB528953A - Improvements relating to aspirators for granular or powdered materials : en
  • DE698641C - Soft or semi-rigid stand-up collar : de en
  • DE698586C - Electric fluid switch with oil as switching fluid : de en
  • US2221144A - Means for controlling servomotors : en
  • US2221216A - Air operated device : en
  • US2221268A - Automotive vehicle seat : en
  • US2221434A - Method of and means for treating plants : en
  • DE698486C - Start-up relief valve for rotary lobe pumps : de en
  • DK58143C - Process for the Separation of the Homologous Carbonyl Compounds Formed by Decomposition of Sterins and Bile Acids or Their Derivatives. : da en
  • ES4616Y - A metal siphon for sinks : en es
  • US2221491A - Stud terminal rail bond : en
  • US2221049A - Work loading mechanism for lathes : en
  • DE698462C - Process for the production of water-soluble dyes of the phthalocyanine series : de en
  • GB528925A - Improvements in means for feeding carbon interleaved typescript paper to typewriters : en
  • GB529167A - Improvements in the electrical production of musical tones : en
  • DE698660C - Closet, especially a row wardrobe : de en
  • US2221122A - Thermionic valve amplifier : en
  • US2221155A - Convertible woman's hat : en
  • US2221335A - Indicating bulletin board : en
  • US2221475A - Siding unit : en
  • FR858058A - Variable pitch propeller improvements : en fr
  • US2221373A - Candy : en
  • US2220965A - Seal : en
  • US2221642A - Tire tread and method of making the same : en
  • USD123495S - Combined case and holder for a bottle of -perfume or the like : en
  • US2221061A - Process of making iron and nickel alloys : en
  • US2221609A - Photographic view finder : en
  • US2221160A - Bioscope cabinet : en
  • USD123533S - Design for a dress : en
  • GB529031A - Improvements in or relating to working fluids and processes of producing cold by the absorption refrigerating principal : en
  • FR858037A - Method and device for improving the operation and efficiency of injection engines : en fr
  • DE698541C - Device for tilting the car body of motor vehicles when cornering : de en
  • DE698646C - High-frequency amplifier with feedback from an oscillation circuit to an equally tuned oscillation circuit located in a preceding tube stage : de en
  • US2221490A - Reclaimed rubber and method of producing the same : en
  • US2221176A - Attrition mill : en
  • CH212239A - Color filters for colorimetric purposes. : de en
  • FR858051A - Automatic piston regulator : en fr
  • USD123492S - De sign for a plaque or similar article : en
  • DE698479C - Process for anodic oxidation of aluminum and its alloys : de en
  • DE698524C - Vehicle with independently supported wheels guided by handlebars : de en
  • GB529015A - Improvements in and relating to gas blast electric switches : en
  • DE698535C - Process for the production of strips, springs or sheets with strong spring force from rustproof chrome steels : de en
  • DE698568C - Turning device for heavy internal combustion engines : de en
  • FR50465E - Feeder h.f. high impedance for t.s.f. : en fr
  • US2221031A - Polyvinyl acetal resin compositions containing diethylene glycol ditetrahydrofuroate : en
  • US2221589A - Ore concentrating machine : en
  • US2221200A - Method and apparatus for forming articles from paper pulp : en
  • US2221395A - Control mechanism for elevators : en
  • US2221670A - Gas-insulated electric device : en
  • AT159753B - Theodolite. : de en
  • AT159796B - Process to make textile fibers washable and water-repellent. : de en
  • US2221640A - Apparatus for testing the quality of grain and flour : en
  • CA12897S - Tractor tyre tread : en
  • US2221577A - Machine for marking scales on work : en
  • US2220877A - Dispensing apparatus : en
  • US2221042A - Horse collar : en
  • USD123560S - Design for a dress : en
  • SE100236C1 - : en sv
  • US2221386A - Snow removal : en
  • DE698676C - Rear suspension for bicycles, especially for motorcycles : de en
  • CH212332A - Process for the production of a nitrogen-containing naphthalene derivative. : de en
  • US2221527A - Receptacle : en
  • AU111863B2 - Improvements in and relating to electric radiators : en
  • AU1339044A - Stabilizer for fire extinguishing foam : en
  • US2221000A - Polymerizing olefin hydrocarbons : en
  • US2221349A - Traversing mechanism : en
  • US2221557A - Cleaner : en
  • US2221279A - Multiple-boring machine : en
  • US2221203A - Automobile jack supporting base : en
  • DE698532C - Weft guard parking device for looms : de en
  • CH212250A - Device for guiding a back and forth swinging tool for planing. : de en
  • AU122652B2 - Improvements in apparatus for measuring and dispensing liquids : en
  • CA392486A - Rail splice bar : en fr
  • CH212281A - Ignition and excitation circuit for mercury vapor rectifier. : de en
  • DE698592C - Suction excavator in which the cutting angle of the suction head does not change with changing inclinations of the suction pipe : de en
  • DE698636C - Device on automatic cutters for roof tiles or the like. : de en
  • CH212231A - DF system with remote-controlled DF coil. : de en
  • US2221169A - Oil treating unit : en
  • CH212228A - Roof for discharging incendiary bombs. : de en
  • CA392406A - Foot corn protector : en fr
  • US2221034A - Polyvinyl acetal resin sheets containing amyl succinate : en
  • US2221650A - Process of molding polysulphide polymers : en
  • US2221701A - Wire twisting machine : en
  • GB529002A - Improvements relating to the cutting mechanism of machines for mowing grass and other plants : en
  • GB529083A - Improvements in or relating to electrically operated sewing machines : en
  • CH212225A - Projectile, in the longitudinal axis of which a spring-loaded ignition device is arranged. : de en
  • US2221137A - Safety cleaning tool : en
  • US2221544A - Automatic time switch : en
  • AT159784B - Automatic balance with a contact device arranged between the pointer of the balance and an auxiliary pointer that can be adjusted to the desired weight. : de en
  • CA392501A - Shoe ornamenting method : en fr
  • US2220882A - Film treatment : en
  • DE698620C - Brake and accelerometer : de en
  • CH212207A - Coated paper for printing and method of making this paper. : en fr
  • DE673732C - Device for separating and feeding the top sheet of a stack to a processing machine : de en
  • US2220887A - Electrolytic condenser : en
  • US2221415A - Reduction gearing : en
  • US2221439A - Smoking pipe, cigar, or cigarette holder : en
  • DE698449C - Armpit guard holder : de en
  • DE698543C - Feeding device for ring roller presses : de en
  • FR857976A - Ultraviolet ray apparatus for cosmetic and therapeutic applications : en fr
  • FR857993A - Automatic control mechanism for motor vehicle gearboxes : en fr
  • DE698461C - Light relay : de en
  • US2221207A - Rubber composition and preservation of rubber : en
  • US2221593A - Multiple fan drive for furnaces : en
  • FR857997A - Electrically heated circulating air furnace for annealing or tempering : en fr
  • GR9333B - IMPROVED IN THE REFINERY AND PRODUCTION OF ALUMINUM. : el en
  • US2221410A - Recovery or production of unitary cyclic compounds : en
  • US2221508A - Garment hanger : en
  • CH212254A - Hair clippers, in particular electrically powered razors. : de en
  • CH212267A - Cooled injector. : de en
  • US2221289A - Umbrella : en
  • USD123494S - Design for a dress or simolar article : en
  • CA392444A - Garage heater : en fr
  • CH212181A - Knitting needle. : en fr
  • CA392466A - Elastic yarn making apparatus : en fr
  • CH212165A - Suspension of a seat or lying surface of upholstered furniture. : de en
  • DE698485C - Self-priming centrifugal pump : de en
  • US2221136A - Telegraph system : en
  • US2221382A - Steam generator : en
  • CH212283A - Device for controlling the passage of current through dry rectifiers. : de en
  • CA392467A - Die forming method : en fr
  • CA392512A - 4-aminobenzene-sulphonamide : en fr
  • AU490439A - Tractor and implement unit : en
  • CH212208A - A method of joining, by gluing, two or more surfaces. : en fr
  • CA392475A - Hosiery : en fr
  • US2220960A - Carton forming machine : en
  • US2221735A - Insertable tooth metal saw : en
  • US2221035A - Polyvinyl acetal resin sheets containing a dialkyl maleate : en
  • USD123499S - Design fob a bottle : en
  • US2221149A - Compressor : en
  • CH212242A - Waterproof watch box. : en fr
  • US2221592A - Tension control system : en
  • CA12898S - Printed textile material : en
  • DE698555C - Push button switch : de en
  • US2221389A - Clothes wringer : en
  • US2221540A - Method of producing a resin : en
  • FR50476E - Method and devices for centering the brake shoes at rest : en fr
  • GB528990A - Improvements in or relating to an electric meter of the frequency measuring or discriminating type : en
  • GB529021A - Improvements in or relating to electrical measuring instruments : en
  • US2221346A - Air diffusing means : en
  • AT159766B - Rotor cooling arrangement in multi-cell rotary lobe compressors. : de en
  • US2220897A - Electric current converter : en
  • US2221405A - Internal combustion engine : en
  • FR858064A - Process for manufacturing a manganese oxide catalyst : en fr
  • US2221081A - Valve assembly : en
  • AT159763B - Rotary piston blower for flange-mounting on vehicle or aircraft engines. : de en
  • DE698548C - Device for clamping auxiliary ribbons on typewriters : de en
  • DE698692C - : de en
  • US2220970A - Lubricant : en
  • US2221345A - Electrical receptacle or outlet : en
  • US2221473A - Amplifier : en
  • CH212144A - Drovers. : de en
  • US2221416A - Checker construction : en
  • US2221004A - Means for producing montage type prints : en
  • CA392450A - Lamp prefocusing apparatus : en fr
  • GB529052A - Improvements in knee-tables : en
  • US2220932A - Alloy steel articles : en
  • US2221375A - Self-luminous locator : en
  • US2220996A - Automatic ratio selector for electrically controlled gear shifting mechanism : en
  • US2221356A - Manufacture of alkall phosphates : en
  • CH212150A - Sealing on room locking devices. : de en
  • AU111854B2 - Method of and means for testing eyes : en
  • US2221033A - Polyvinyl acetal resin sheets containing di-isoamyl sulphone : en
  • US2221117A - Rotation mechanism for rock drills : en
  • US2221553A - Wheel : en
  • US2221003A - Air cooler : en
  • US2221617A - Method of making handled shopping bags : en
  • GB529212A - Process and apparatus for coiling strip material : en
  • US2221269A - Quick acting obturating flap valve : en
  • US2221173A - Sanding or polishing wheel : en
  • GB529073A - Improvements relating to means for stopping or closing gas mains : en
  • GB529159A - Boiling device especially for the preparation of coffee or tea : en
  • FR857985A - Headlight recessed in an opening in a vehicle trim : en fr
  • AU111859B2 - Improvements in and relating torat traps : en
  • NL89281B - : en
  • US2220983A - Apparatus for power flow control : en
  • US2221414A - Amusement park safety device : en
  • AT159791B - Process for producing a melt-down metal alloy. : de en
  • GB529029A - Improvements relating to loom shuttles : en
  • IE15969L - Metal netting : en
  • US2221267A - Chessboard box : en
  • US2221397A - Planking clamp : en
  • US2221456A - Electrical regulator : en
  • USD123484S - Design foe, a screen and storm sash bracket : en
  • US2221131A - Nitro-dyestuffs and process of preparing them : en
  • DE698658C - medical instruments by means of a stream of hot air circulating past electrical heating elements : de en
  • US2220974A - Air controlling instrument : en
  • US2220978A - Lighter : en
  • DE698546C - Process for producing an amidine : de en
  • DE698605C - Device for modulating optical beams : de en
  • US2221185A - Power generating unit : en
  • CA392473A - Brake lining glass fabric : en fr
  • US2221054A - Automobile headlighting : en
  • US2221223A - Refrigerant control system : en
  • AT159761B - Straight-through image-inverting prism system. : de en
  • CH212290A - Spray. : en fr
  • GB528989A - Improvements in and relating to sliding clasp fasteners : en
  • CH212286A - Process for the preparation of 3-oxy-4-carbaminyl-benzene-1-arsic acid. : de en
  • CH212233A - Fluid flow meter with rotor rotating under the action of the fluid. : en fr
  • CH212331A - Process for the production of a nitrogen-containing naphthalene derivative. : de en
  • US2221252A - Magnesium base alloy : en
  • US2221446A - Comb : en
  • FR858021A - Electric cart : en fr
  • DE698499C - Vaults, especially for bridges : de en
  • CH212257A - Removable sectioned elbow for sheet metal pipes. : en it
  • US2221109A - Electric sign system : en
  • US2221009A - Spring clip device : en
  • US2221258A - Magnesium base alloy : en
  • AT159759B - Arrangement for power take-off on internal combustion engines with multi-cranked crankshafts. : de en
  • US2221044A - Manually operated hydraulic lock : en
  • US2221104A - Television receiver : en
  • DE698730C - Flame tube boiler with water circulation pipes : de en
  • US2221745A - Suction sweeper : en
  • CH212347A - Process for the preparation of an acidic triphenylmethane dye. : de en
  • US2221600A - Electrostatic voltmeter : en
  • US2221028A - Azo compounds and material colored therewith : en
  • US2221651A - Pin socket : en
  • AT159751B - Multi-walled sack made of paper or the like. : de en
  • CA392425A - Handsaw : en fr
  • US2221396A - Automatic weighing conveyer : en
  • CA392459A - Fibrous material digesting method : en fr
  • CA392409A - Girdle or foundation garment : en fr
  • CH212192A - Process for the preparation of 4,5-androstene-3,17-dione. : de en
  • CA392493A - Refrigerator car ice grate : en fr
  • AU111845B2 - Improvements in or relating to electrical oscillation generators : en
  • DE685373C - Single spring-tongued turnout that can be used as a right and left turnout : de en
  • FR50488E - Instant locking device allowing drive only in one direction of rotation : en fr
  • CH212209A - Casting device of a die setting and line casting machine. : de en
  • DE698740C - Overcurrent carrier fuse : de en
  • GB529165A - Improvements in or relating to machines for packeting articles : en
  • FR50456E - : fr
  • DE698610C - Skipkuebel : de en
  • US2220981A - Fungicide : en
  • US2221108A - Soldering device : en
  • CA392408A - Car journal lubricator : en fr
  • CH212306A - Electrical angle transmission device. : en fr
  • DE698584C - Circuit arrangement for telephone systems with dialer operation : de en
  • CH212300A - Tuning procedure for coupled oscillation circuits. : de en
  • DE698732C - Process for the simultaneous direct production of iron or its alloys and cement or hydraulic lime and a rotary kiln for its execution : de en
  • CH212354A - Process for the preparation of a condensation product from m-xylohydroquinone and phytol. : de en
  • CA392474A - Instrument panel speaker unit : en fr
  • GR9335B - HOW TO PRODUCE A NEW TYPE OF CINEMA WORKS (MOVIES) SMALL / LARGE, SPEAKING MUSICAL COLORS AND NON. : el en
  • US2220972A - Box unit : en
  • CH212203A - A method of manufacturing an adhesive composition. : en fr
  • AU247339A - Improved suction or vacuum cleaners : en
  • AT159780B - Money collecting box. : de en
  • US2221113A - Lawn seed distributor : en
  • NL49589C - : en
  • US2221744A - Volume control tube : en
  • USD123486S - Design for a telescope : en
  • US2221604A - Control system : en
  • CH212324A - Eclipsable landing gear for aircraft. : en fr
  • CA392438A - Metal container and key : en fr
  • US2221139A - Preparation of medicaments : en
  • AU111838B2 - Improved collapsible tops for vehicle bodies : en
  • US2221562A - Electroplating : en
  • AU1675144A - Improvements in mobile cranes : en
  • CH212252A - Wood shredding machine. : de en
  • FR858015A - Mixture for the absorption of carbon dioxide : en fr
  • SE100266C1 - : en sv
  • US2221467A - Focusing and separation of charged particles : en
  • FR858022A - Radio receiver : en fr
  • FR858075A - Improvements in the assembly of handles or the like of window regulators or others : en fr
  • US2220993A - Piston packing : en
  • GB529047A - Improvements in automatic switches for use in telephone or like systems : en
  • US2221630A - Suction nozzle : en
  • GB528945A - Improvements in or relating to air purifying or regenerating cartridges : en
  • GB529030A - Improvements in methods of initiating electric arcs fed by controlled rectifiers for carrying out chemical reactions : en
  • US2221051A - Lubricator for journal bearings : en
  • US2221096A - Radio receiver control circuits : en
  • GB528921A - Improvements in or relating to the production of lignin : en
  • US2221029A - Azo compounds and material colored therewith : en
  • US2221419A - Needle : en
  • GB529138A - Improvements in and relating to high pressure fluid medium distribution systems : en
  • DE698647C - Insulators for guy guying : de en
  • US2220966A - Titanium oxide suspensions : en
  • GB529150A - Improvements in cop, bobbin and spool winding apparatus : en
  • US2221509A - Electric ignition system : en
  • DE698505C - Locking device for socket and rotary switch, which can be operated on two sloping surfaces of a common housing : de en
  • USD123480S - Design for a tennis shoe : en
  • GB528981A - Improvements in or relating to the manufacture of metal beams and like sections : en
  • GB529164A - Improvements relating to constant mesh variable speed gear : en
  • DE698579C - Target for miniature shooting devices : de en
  • ES4590Y - Perpetual periodic indicator of female physiological fertility : en es
  • FR858066A - Automatic welt sewing machine : en fr
  • US2221080A - Eccentric head for cam grinding pistons : en
  • US2221293A - Automatic water leveler : en
  • US2221350A - Furnace door : en
  • DE698572C - Process to increase the selectivity of related color separations : de en
  • DE698755C - Ten key calculator : de en
  • US2221615A - Single anode hg arc rectifier : en
  • US2221649A - Building block : en
  • FR858054A - Shoemaking method and apparatus for use in preparing ends for assembly : en fr
  • DK58141C - Procedure and Apparatus for Treatment of Domestic Waste. : da en
  • US2221157A - Rivet remover : en
  • US2221354A - Strip coiling machine : en
  • US2221513A - Ball or roller bearing : en
  • US2221669A - Apparatus for dyeing and finishing stockings : en
  • CH212295A - Circuit arrangement for telegraph lines, via which both telegraph characters and switching criteria are transmitted by current surges of the same type. : de en
  • US2221114A - Bed covering : en
  • US2221329A - Art of treating leatherboard : en
  • US2220991A - Article support : en
  • US2221264A - Stepladder : en
  • US2221403A - Moving stairway handrail drive : en
  • DE698735C - Process for the economic prevention of moisture damage in telecommunications equipment : de en
  • GB529141A - Fuel injection apparatus for internal combustion engines : en
  • US2221343A - Method for processing and precooling eggs : en
  • AT159755B - Electromagnetically controlled fuel injector for internal combustion engines. : de en
  • GB529123A - Improvements relating to metal vapour electric discharge lamps : en
  • US2221078A - Headlight beam indicator : en
  • US2221570A - Electromagnetic testing system : en
  • US2221151A - Footwear : en
  • DE698639C - Process for the production of green ceramic decorations, in particular underglaze decorations : de en
  • US2221438A - Refrigerating apparatus : en
  • CA392436A - Metal cutting machine controlling means : en fr
  • FR50472E - Improvements to the wheels of tractors or other vehicles in order to increase their grip : en fr
  • DE698675C - Device for vehicles for observing lane lines that are hidden from view, especially for motor vehicles : de en
  • CH212253A - Extrusion press for processing plastic plastics such as rubber, etc. : de en
  • GB528975A - Improvements in or relating to coin-freed amusement or vending machines : en
  • US2221366A - Umbrella robe : en
  • US2221538A - Classification system : en
  • GB529122A - Improvements in blinds for double windows : en
  • GB529102A - Methods of avoiding reflections in electric wave transmission lines : en
  • GB529226A - Improvements in and relating to electric measuring instruments : en
  • DE698704C - Apparatus for generating acetylene in developing lime hydrate : de en
  • FR857963A - Electronic lamp with an indirectly heated cathode for ultra-short waves : en fr
  • FR858049A - Continuous dryer for fish and other products presented on racks, baskets, swings, etc. : en fr
  • GB529038A - Improvements in apparatus for recording in motion and other data relating to machines : en
  • US2221093A - Extraction process : en
  • US2221159A - Fruit cleaning machine : en
  • US2221287A - Internal combustion engine : en
  • USD123537S - Design fob a dress : en
  • US2221036A - Polyvinyl acetal resin sheet containing ethoxyethyl maleate : en
  • US2221226A - Shaft sinking and excavating device : en
  • US2221400A - Friction clutch facing : en
  • FR857973A - Fire extinguisher bomb with mass of compressed extinguisher powder : en fr
  • GB528969A - Improvement in making composite metals : en
  • AT159777B - Arrangement for previewing the controllable secondary voltage of a high voltage transformer, especially in X-ray systems. : de en
  • GB529066A - A tool for removing the sheath from electric cables : en
  • GB529139A - Improvements in apparatus for washing cups, mugs, drinking glasses and similar articles : en
  • CA392454A - Electric discharge device : en fr
  • CH212327A - Device for distributing and mixing clay, loam or the like. : de en
  • GB529175A - Improvements in or relating to centrifugal pumps, particularly circulating pumps : en
  • US2221272A - Traffic light signal : en
  • GB528950A - Improvements in and relating to means for automatically regulating a working machine : en
  • GB529065A - Improvements in carriage stop mechanism for typewriting machines : en
  • DE698747C - Process for the production of vacuum flasks : de en
  • US2221635A - Portable pump and electric motor unit : en
  • GB529013A - Improvements in and relating to froth flotation : en
  • GB529072A - Split piston-rings : en
  • US2221497A - Ventilator : en
  • US2221555A - Apparatus for covering cores : en
  • US2221662A - Polymeric esters of unsaturated polycarboxylic acids with ethynyl carbonyls having at least one hydrogen atom attached to the alkynyl carbon atom : en
  • US2221305A - Dry mop : en
  • FR50477E - Remote clutch control system by compressed air, known as constant pressure : en fr
  • GB529224A - Improvements in foot arch supports : en
  • CH212177A - Risp device for warping or clipping machines. : de en
  • US2221412A - Power transmission : en
  • US2221002A - Hammer for feed grinding machines : en
  • US2221299A - Extrusion apparatus : en
  • US2220915A - Heel-slotting machine : en
  • US2221457A - Method of and means for lubricating high-speed spindles : en
  • DE698563C - Device for operating Roentgen tubes, in which the current feeding the Roentgen tubes is taken from a condenser : de en
  • GB529201A - Improved mechanism for closing carton ends : en
  • GB529230A - Improvements in or relating to protective arrangements for windows and similar openings : en
  • GB529179A - Improvements relating to fuel injection nozzle fittings for oil engines : en
  • FR50453E - Adjustable hydraulic shock absorber : en fr
  • GB529018A - Window or door actuating gear : en
  • GR9331B - CLEANING OF STAINLESS STEEL ROTATIVE OVEN. : el en
  • CH212234A - Coil for concentrating the cathode rays from single, double and multi-beam cathode ray oscilloscopes. : de en
  • CH212323A - Motor bogie on rail vehicles. : de en
  • GB529101A - Improvements relating to cooling thermionic valves : en
  • US2220907A - Balance wrapper for ailerons : en
  • USD123539S - Design for a dress : en
  • GB529084A - Device for cleaning and removing stains from the prongs of forks : en
  • FR50452E - Pneumatic braking device, particularly applicable to rail vehicles : en fr
  • FR858081A - Improvements to speed-adjustable braking devices : en fr
  • GB529010A - Improvements in centralizers for percussive rock drill steels : en
  • GB529136A - Improvements in or relating to contact structures for electric circuit breakers : en
  • FR858026A - Air- and gas-tight wall feed-through for electrical conductors, especially in high altitude aircraft : en fr
  • USD123509S - Design for a drink mixer : en
  • USD123516S - Design for a combined perfume box : en
  • DE698750C - Clamping device for the lengthways of roll-up curtains, especially blackout curtains : de en
  • DE698511C - plastic molded plastic parts : de en
  • GB529111A - Improvements in or relating to dental equipment stands : en
  • US2220930A - Polymerization of hydrocarbons : en
  • US2221372A - Journal and bearing : en
  • FR857980A - Grinding or pneumatic spraying plant : en fr
  • GB529004A - Apparatus for curling small locks of hair : en
  • GB528987A - Improvements in or relating to the manufacture of dimethylamine : en
  • GB529134A - Improvements in the oxidation of propenyl benzine derivatives : en
  • GB529170A - Improvements in and relating to temperature regulators : en
  • DE698698C - Monitoring device for high voltage fuses : de en
  • DE698742C - Process for the production of whitish leather : de en
  • GB529121A - Improvements in or relating to dust collectors or separators and the like : en
  • GB528965A - Improvements in pipe couplings : en
  • FR858098A - Electrically heated pitot tube : en fr
  • US2221358A - Doorstep for the home : en
  • FR50469E - Process and devices for the production of agglomerates, for example concrete : en fr
  • GB528947A - Improvements in or relating to the production of pressed bodies : en
  • DE698549C - Brake pressure regulator for air brakes : de en
  • FR858007A - Improvements to nuts : en fr
  • US2221575A - Circuit interrupter : en
  • US2221723A - Vending machine : en
  • GB528974A - Improvements in or relating to trailer vehicles : en
  • GB528986A - Apparatus for facilitating the unwinding and straightening of wire from reels or the like : en
  • FR858045A - Precision torque wrench : en fr
  • FR858096A - Hardening process for steel and other alloys : en fr
  • GB528988A - Improvements in and relating to pneumatic apparatus for raising liquids : en
  • CA392429A - Ventilator : en fr
  • FR858047A - Improvements in stabilization means, particularly for ships, and applications of these means : en fr
  • US2221079A - Illumination device : en
  • US2221746A - Vacuum cleaner : en
  • US2221697A - Tenpin setting machine : en
  • AU111869B2 - Improvements in and relating to aircraft : en
  • US2221543A - Material handling apparatus : en
  • US2221082A - Coincidental lock : en
  • US2221641A - Black nickel finish : en
  • US2221698A - Transfer conveyer mechanism : en
  • ES4612Y - A new model of moth : en es
  • GB529202A - Process for the preparation of concentrated coffee essence : en
  • US2221320A - Sewing machine : en
  • US2220931A - Telegraph system : en
  • US2221519A - Method of combustion of liquid fuel : en
  • US2221710A - Wire terminal : en
  • DE698682C - Process for the production of nailable shaped stones, especially for floor supports : de en
  • DE698642C - Process for the separation of mixtures of polyhydric alcohols : de en
  • FR857962A - Process for making stripes for small caliber guns : en fr
  • DE698712C - Light metal pistons for internal combustion engines : de en
  • DE698765C - Device for influencing the speed of a smooth roll carried along by the film : de en
  • GB529080A - Improvements in and relating to valves or cocks : en
  • CH212182A - Process for dyeing leather. : de en
  • US2221241A - Paper padding press : en
  • FR858092A - Improvements to navigation radio transmitters : en fr
  • GB528920A - Improvements relating to the control of the flow of liquid through filters : en
  • GB528963A - Improvements in or relating to safety devices for aircraft : en
  • CH212201A - Process for the preparation of aliphatic amines. : en fr
  • US2220948A - Piston ring : en
  • US2221206A - Watchcase construction : en
  • DE698665C - Address printing machine : de en
  • GB529103A - Improvements in or relating to wireless transmitting and receiving systems for two-way operation : en
  • DE698465C - Foldable deck chair with a lying surface suspended between a rear and a front pair of foot rests : de en
  • DE698588C - Moving grate : de en
  • USD123479S - Design for a case for clocks or similar articles : en
  • US2221007A - Device for producing a sound track : en
  • US2220936A - Watchman's signal and alarm system : en
  • US2221742A - Rubber molding press : en
  • US2221715A - Rotary mill : en
  • US2221483A - Signal lamp : en
  • US2221103A - Hoisting device : en
  • US2221171A - Polymerization of hydrocarbons : en
  • US2221193A - Slab foundation for buildings or other structures : en
  • AU122669B2 - Method of and means for building concrete structures : en
  • DE685600C - Process for dewatering chopped potatoes and beetroot : de en
  • US2221322A - Manufacture of parachutes : en
  • US2221263A - Calcium base alloy : en
  • CA392410A - Variable speed drive : en fr
  • CA392414A - Gaff hook : en fr
  • CH212226A - Drop bomb. : de en
  • US2221107A - Pan dump mechanism : en
  • DE698512C - Tablet press for fiber-containing synthetic resin pulp masses : de en
  • DE698738C - Coupling arrangement for high frequency transmitters, especially for short waves : de en
  • US2221442A - Utensil washing machine : en
  • US2221578A - Parking meter : en
  • US2220902A - Gauge diaphragm mounting : en
  • DE698491C - Gun for armored towers : de en
  • NL49673C - Lasch for a ring or arc-shaped mine lining : en nl
  • AU356139A - Improvements in or relating to boxes made of cardboard or similar material : en
  • CH212333A - Process for the production of a nitrogen-containing naphthalene derivative. : de en
  • DE698688C - Suspension for boom that can be pivoted in a vertical plane, e.g. B. bucket ladders and bucket wheel booms of excavators o. : de en
  • FR50482E - Device for actuating the cutting blade of a mechanical mower : en fr
  • US2221220A - Method and machine for freezing edible products : en
  • CH212171A - Tapping device on storage barrels. : de en
  • US2220998A - Thermostatic expansion valve : en
  • GB529020A - Improvements in or relating to electrical signalling systems : en
  • AU111852B2 - Improvements in or relating to looms with stationary weft supplies : en
  • CH212356A - Process for the preparation of a condensation product from m-xylohydroquinone and phytyl dihalides. : de en
  • US2221582A - Insulated runner for trolley devices : en
  • AU38840A - Improvements in and relating to electric radiators : en
  • AT159781B - Machine for pre- and post-polishing of hollow rollers, especially pressure rollers. : de en
  • FR857959A - Improvements to automotive vehicle braking systems : en fr
  • FR857971A - Improvement of chain unwinders for looms : en fr
  • CH212157A - Window stay. : de en
  • US2221148A - Blind stitch sewing machine : en
  • US2221407A - Typewriter machine : en
  • CA392434A - Insulation testing apparatus : en fr
  • CA392515A - Insulation sheet material : en fr
  • US2221158A - Sectional trolley guard : en
  • US2220927A - Recording system : en
  • US2221309A - Insulating element : en
  • CH212268A - Gas turbine system with compressor and heat exchanger. : de en
  • CH212284A - Method for mixing specific heavy fuel gases with air and device for carrying out the method. : de en
  • CA392482A - Measuring tape : en fr
  • FR857964A - High-value structural steel for heavy construction : en fr
  • DE698458C - : de en
  • DE698673C - Process for the preparation of photographic positive emulsions with the aid of oxocyanine dyes : de en
  • FR858050A - Saddle fittings of bicycles, tandems or the like with new arrangements of the triangulation support points : en fr
  • US2221027A - Azo compounds and material colored therewith : en
  • US2221239A - Apparatus for pointing elongated material : en
  • DE698523C - Suspension for vehicles with swinging semi-axles : de en
  • DK58144C - Method of Preparation of 4,5-Unsaturated Steroid Ketones. : da en
  • USD123506S - Design fob a dress or sevhlar article : en
  • CA392484A - Work squaring table : en fr
  • CH212344A - Process for the preparation of a new ester of the dihydrooestrine series with a free phenolic hydroxyl group. : de en
  • AU122681B2 - Improvements relating to traps for rats and mice : en
  • CH212330A - Process for the preparation of a pregnen-3-ol-20-one derivative. : de en
  • US2221711A - Printing and bead forming device : en
  • US2221626A - Treatment of manganese : en
  • AT159797B - Process for clarifying fruit juices containing metal protein compounds, in particular grape musts. : de en
  • DK58156C - Nut protection. : da en
  • US2221610A - Electrical control system : en
  • USD123531S - De sign fob an electric broiler : en
  • US2221162A - Lubricating oil : en
  • USD123523S - Design fob a dress : en
  • USD123535S - Design for a dress : en
  • DE698567C - Method for combating the beet leaf bug : de en
  • US2221101A - Locking device : en
  • US2221401A - Fertilizer distributor : en
  • NL50133C - : en
  • AU494739A - Improvements in or relating to electrical oscillation generators : en
  • CH212277A - Arrangement with secondary electron multiplier. : de en
  • CH212340A - Process for the production of a nitrogen-containing naphthalene derivative. : de en
  • US2221237A - Copyholder : en
  • US2221590A - Smoking pipe : en
  • GB528936A - Improvements in and relating to high tension electric isolating switches : en
  • US2220880A - Tempering porous organic products : en
  • US2220899A - Branch connection : en
  • US2221448A - Wet sanding machine : en
  • CH212140A - Knife head joint on mowers. : de en
  • DE698481C - Roll film camera : de en
  • DE698726C - Process to prevent the flow of the carbon dioxide enriched with grainy components : de en
  • FR50484E - Amplifier or frequency changer assembly comprising a screen grid tube : en fr
  • CA392421A - Log sawing apparatus : en fr
  • DE698497C - Removable dust jacket for books and notebooks : de en
  • US2221486A - Guard for rotary machines : en
  • US2221006A - Method of making toilet seats : en
  • US2221432A - Pulley : en
  • US2221679A - Method of making elastic fluid turbine buckets : en
  • FR50460E - Improvements to devices for sorting electrified particles and application to television : en fr
  • FR857958A - Rolling frame for vacuum cleaner, attached like a collar to the vacuum cleaner tank : en fr
  • DE698470C - Display or printing device for scales : de en
  • USD123505S - Design for a glass jug : en
  • GB528928A - Improvements in bottle carriers : en
  • US2220920A - Valve device for a fluid power transmission mechanism : en
  • DE698517C - Protective cover made of multi-layer fabrics : de en
  • DE698648C - Electrically heated post insulator : de en
  • CA392522A - Sock for footwear : en fr
  • DE698565C - Plant for roasting bast fiber stalks : de en
  • DE698596C - lye : de en
  • US2221018A - Treatment of waste solutions containing metals : en
  • US2221308A - Hydraulic power transmission mechanism : en
  • US2221336A - Motor and transmission for windshield wipers : en
  • US2221674A - Glycol esters : en
  • DE698558C - Electric pressure gas switch with insulating nozzle : de en
  • GB528994A - An improved process for the preparation of purified vitamin a ester concentrates : en
  • DE698654C - Manufacture of drying agents : de en
  • US2220896A - Ironing table : en
  • US2221344A - Typographical slug casting machine : en
  • USD123556S - Design for a wallpaper : en
  • US2221367A - Manufacture of laminated glass : en
  • US2221644A - Luminescent device : en
  • US2221280A - Electric socket and plug : en
  • US2221411A - Separable fastener : en
  • GB529087A - Improvements in and relating to aircraft landing gear : en
  • FR858010A - Process for producing electroplated chromium coatings : en fr
  • USD123503S - Design for a skillet cover : en
  • FR858006A - Dental prosthesis impression mold : en fr
  • GB529168A - Improvements in or relating to coupling arrangements for resonant networks : en
  • US2221255A - Magnesium base alloy : en
  • AT159786B - Sinks, sinks, sinks, etc. like : de en
  • DE698547C - Start-up and control device for the drive steam turbine of a liquid pump : de en
  • US2221647A - Heater and air circulator : en
  • CH212176A - Thread damper on winding machines. : de en
  • DE698643C - Process for the pure preparation of easily polymerizing organic compounds : de en
  • DK58155C - Device for Containers for Spraying Spray Liquid. : da en
  • ES4604Y - A scale for agricultural and commercial uses : en es
  • GB529056A - Tobacco pouch : en
  • US2221050A - Blending chamber for water mixing valves : en
  • US2221459A - Manufally controlled contouring machine : en
  • US2221654A - Apparatus for railway train communication systems : en
  • USD123532S - Design for a dress : en
  • DE698677C - Suspension for bicycles, especially for motorcycles : de en
  • GB529088A - Improvements in or relating to coin-controlled parking meters : en
  • US2221686A - Calculating machine : en
  • USD123563S - Design fob a slip : en
  • CH212187A - Process for pasteurizing liquids and execution means for carrying out this process. : de en
  • CH212206A - Process for breaking up straw, reeds, maize fruit carriers and similar dry plant matter. : de en
  • US2221315A - Floor treating machine : en
  • CH212318A - Device for aligning the front forks of bicycles. : de en
  • DE698495C - Flushing method for creating a channel in shallow waters for laying cables from a vehicle : de en
  • DE698607C - Operating device for air blowers, especially for dental treatment purposes : de en
  • GB529208A - Improvements in and relating to magnetic apparatus for adjusting mechanism within a sealed casing : en
  • US2221466A - Ice cream cone dispenser : en
  • CH212321A - Internal combustion engine system, in particular on vehicles. : de en
  • US2220906A - Drying oil : en
  • US2221083A - Engine starter : en
  • USD123536S - Design for a dress : en
  • GB529153A - Improvements in and relating to baking trays : en
  • GB529034A - Improvements in or relating to the manufacture of electric cells, batteries, or the like : en
  • US2221260A - Machine for grinding crankshafts : en
  • DE698509C - Permanent hair wave device with a heating chamber containing chemical, exothermic substances : de en
  • FR50461E - Improvements in the industry for transforming organic materials into usable nitrogen derivatives and fat decay products by means of artificial digestion : en fr
  • DE698697C - Control gear for electric motors with auxiliary engine : de en
  • GB529041A - Improved photographic process and light-sensitive elements therefor : en
  • GB529075A - Improvements in valve operating mechanisms for engines : en
  • US2221591A - Frequency measuring apparatus : en
  • AU122613B2 - Improvements inthe curing and packaging of cheese : en
  • US2221254A - Magnesium base alloy : en
  • US2221248A - Magnesium base alloy : en
  • USD123559S - Si verts dress ensemble : en
  • US2221115A - Multiple trace oscillograph system : en
  • US2221303A - Educational device : en
  • DE698655C - adhesive : de en
  • USD123542S - Design for a dress : en
  • CH212339A - Process for the preparation of an aldehyde of the cyclopentanopolyhydrophenanthrene series. : de en
  • GB529110A - An improved process for treating flour to remove therefrom objectionable smells or flavours : en
  • DE698771C - Cushioning, especially for motor vehicles : de en
  • US2221451A - Automobile map device : en
  • US2221702A - Fractionation of hydrocarbon vapor mixtures : en
  • USD123473S - Cabinet for sound picture machine or the like : en
  • FR858056A - Improvements to adjustable pitch propellers : en fr
  • DE698569C - Photoelectric musical instrument : de en
  • DE698614C - Process for processing high molecular weight polymers : de en
  • GB529199A - Improved method of and means for applying sealing strips, labels or the like to carton ends : en
  • NL53196C - method and device for developing and / or fixing light prints, in particular diazotypes and blueprints, according to the so-called semi-wet method : en nl
  • DE698708C - Cooling cell with a steam outlet opening for projector, closed by a safety valve : de en
  • DE647068C - Procedure for radioactivation of liquids : de en
  • GB529161A - Improvements in or relating to lubricating apparatus : en
  • DE698762C - Device for optical copying of transparencies : de en
  • DE698699C - Device for determining the active component of the residual current to earth fault in networks with earth fault extinguishing devices : de en
  • AT159767B - Device for regulating pressure in rotary lobe compressors. : de en
  • AT159762B - Starting magneto. : de en
  • CH212292A - Air purification cartridge for breathing apparatus with corrugated sieves stacked crosswise. : de en
  • US2220943A - Adhesive applying machine : en
  • CA392449A - Lamp prefocusing apparatus : en fr
  • US2220982A - Cleaning anode : en
  • AT159778B - X-ray diaphragm device with at least two adjustable individual diaphragms. : de en
  • AU491539A - Improvements in liquid dispensing systems : en
  • AU111843B2 - Shortwave radio transmitter : en
  • US2221541A - Gain control device : en
  • CH212287A - Process for the preparation of a durable product from an 0-acyloxy-benzenecarboxylic acid and a quinine salt. : de en
  • AT159782B - Method for soldering in a reducing gas atmosphere, in particular in purified hydrogen. : de en
  • USD123500S - Combined container and soap and cosmetic display : en
  • AT159770B - Arrangement for amplifying or converting wave radiation. : de en
  • AU298239A - Improvements relating to carrier wave transmission systems : en
  • CH212245A - Magnetic separator. : de en
  • US2220929A - Photographic developing solutions containing aromatic hydrazines, their preparation and use : en
  • US2221234A - Pick for stringed instruments : en
  • CA392506A - Building block : en fr
  • US2221297A - Back rest for bathtubs : en
  • US2221607A - Reinforcement for contact members : en
  • US2221368A - Shipping carton : en
  • USD123482S - Design for a towel hanger or sim- ilar article : en
  • US2221348A - Apparatus for treating metallic strip : en
  • CA392513A - Thioformamide compound : en fr
  • AT159790B - Sintered hard metal alloys. : de en
  • US2220968A - Magnetron oscillator and modulation means therefor : en
  • US2220939A - Foldable closure : en
  • US2221708A - Preparation of urea-formaldehyde resin : en
  • CH212329A - Garment bag with hanging device. : de en
  • US2221089A - Motion picture projector : en
  • US2221659A - Display rack : en
  • GB528991A - Improvements in or relating to printing devices for weighing machines : en
  • GB528993A - Improvements in hand and other lamps for use with electric batteries : en
  • CH212320A - Cable car with cable drum drive. : de en
  • DE698686C - Screw slot clamp for electrical lines : de en
  • US2221595A - Combined heat element and baffle : en
  • AU111862B2 - Improvements in or relating to beverage brewing devices : en
  • GB529085A - Improvements relating to refractory bodies for gas fires : en
  • FR857986A - Axial application device of rolling mill rolls : en fr
  • US2221516A - Continuous thickness gauge : en
  • FR858039A - Variable compression ratio engine : en fr
  • GB529019A - Improvements in or relating to devices for cutting sound records : en
  • GR9334B - METHOD FOR MANUFACTURE OF SULFAMIDION PRODUCTION. : el en
  • CH212328A - Cutlery holder to be attached to dishes. : de en
  • DE698466C - backrest parts and armchair parts connected to these, each forming part of a three-part reclining area : de en
  • DE698705C - Process for the production of dry plaster of paris bandages : de en
  • GB528901A - Improvements in or relating to welding : en
  • GB529055A - Manufacture of esters of oxyalkylamidines : en
  • GB529120A - Improvements in or relating to processes for making weldless metal tubes and means for carrying out said processes : en
  • AU111842B2 - Tractor and implement unit : en
  • AU122676B2 - Improvements in or relating to collet chuck : en
  • US2221565A - Cutting tool for plaster casts : en
  • USD123557S - Design foe a wallpaper : en
  • US2220938A - Beading mechanism : en
  • US2221038A - Molded flooring material : en
  • US2221506A - Shooting and cap exploding toy gun : en
  • DE698508C - Device for excavating an endless ribbon of glass from the molten mass : de en
  • AT159773B - Beacon antenna with keyed reflectors. : de en
  • GB529221A - Improvements in and relating to means for drawing sheet glass especially with fourcault machines : en
  • GR9338B - METHOD TO MAKE A SERIES OF AUDIO MOVIES. : el en
  • GB528914A - Improvements in and relating to the separation of materials of different specific gravities : en
  • GB529016A - Improvements in or relating to burial vaults : en
  • DE698529C - razor : de en
  • DE698753C - Projector with an automatic image changing device for the demonstration of individual slides : de en
  • DE698489C - Tear rail with guide head set up for straight or parallel guidance : de en
  • DE698530C - Conveyor belt support roll : de en
  • USD123491S - Smith juvenile. swing : en
  • US2221068A - Electrodynamic loudspeaker : en
  • US2221725A - Spindle and mounting : en
  • DE698662C - Process for the production of water-white, translucent or light-colored rubber articles : de en
  • FR50483E - Method and device for the manufacture of gas masks : en fr
  • FR858029A - Process for catalytically splitting hydrocarbons : en fr
  • GB529186A - Improvements in or relating to apparatus for joining together the ends of web material : en
  • CH212235A - Rolling sector contact device. : de en
  • FR858000A - Machine for the disintegration and sorting of mineral and vegetable milled products : en fr
  • GB528935A - Improvements relating to electrical systems for the automatic regulation of a variable quantity : en
  • CH212262A - Rotary lobes of rotary lobe compressors provided with compressor blades rigidly connected to one another. : de en
  • US2221118A - Feeding mechanism for rock drills : en
  • US2221306A - Conductivity indicating system and method : en
  • DE698594C - Striking tool for deforming sheet metal : de en
  • FR858014A - Method and apparatus for fiberizing textile plants : en fr
  • GB529109A - An improved stopper for containers : en
  • GB529014A - Improvements in and relating to electric control devices particularly for tool-feed motors : en
  • US2221123A - Trunk lid support : en
  • US2221174A - Textile apparatus : en
  • GB528922A - Improvements in or relating to moulding compounds : en
  • FR857961A - Clutch device : en fr
  • GB529195A - Improvements in or relating to sheet feeding apparatus : en
  • GB529007A - Improvements in or relating to a machine for boring and cutting : en
  • FR858046A - Safety device adapting to free-fall bomb rockets : en fr
  • FR858018A - Paddle rods for fast swimming : en fr
  • GB528997A - Improvements in levers or rockers, particularly for the valve gear of internal combustion engines : en
  • GR9339B - PORTABLE LAMPS FOR METALS SAME WITH ELECTRIC BATTERY. : el en
  • US2221076A - Furnace hearth : en
  • US2221399A - Clutch : en
  • US2220924A - Shuttleless wire mesh loom : en
  • US2221175A - Pelletized portland cement : en
  • US2221323A - Apparatus and method for testing and assorting thin rubber goods : en
  • US2221462A - Hydraulic control valve : en
  • GB528912A - Improvements relating to portable electric lamps : en
  • FR50496E - Invisible lighting system through glazing : en fr
  • US2221039A - Door operating mechanism : en
  • USD123546S - Diaper pantee or similar article : en
  • GB529108A - An improved bituminous composition : en
  • DE698583C - Telegraph receiver for Morse code or the like. : de en
  • FR858063A - Process for manufacturing agglomerates and product obtained by this process : en fr
  • USD123562S - Design for a wallpaper : en
  • GB529106A - Improvements in goggles : en
  • GB528905A - Improvements in or relating to extensible tables : en
  • DE698587C - Device for separating a coupling line between two generating systems when a certain minimum value of a pendulum frequency occurs : de en
  • US2221707A - Dynamoelectric machine : en
  • USD123469S - Design for a liquid pasteurizer : en
  • DE698666C - Device for mixing fuel dust and air engine : de en
  • DE698671C - Device for the projection of film images with optical compensation : de en
  • DK58147C - Multi-row Signal and Switching Apparatus. : da en
  • FR857996A - Improvements to row seeders : en fr
  • GR9330B - METHOD OF ACCUMULATION OF CELLULAR WASTE FOR INDUSTRIALIZATION. : el en
  • US2221232A - Production of crepelike textile webs : en
  • US2221243A - Magnesium base alloy : en
  • US2221523A - Pitch determining apparatus : en
  • FR858080A - Improvements to hydraulic jacks and similar devices : en fr
  • US2220886A - Fluid heat exchange apparatus : en
  • US2221165A - Conversion of lower molecular weight hydrocarbons into higher molecular weight hydrocarbons : en
  • US2221511A - Resinous composition and method of making the same : en
  • US2221716A - Manufacture and production of staple fiber : en
  • US2221724A - Safety valve : en
  • US2221017A - Safety device for tension shutters : en
  • US2221296A - Garment hanger : en
  • US2221730A - Safety razor : en
  • CH212218A - Circle. : de en
  • DE698727C - Process for the production of solid, water-soluble sulfur-alkali compounds : de en
  • DE698464C - Traveling grate : de en
  • DE698602C - utilities, especially for road building : de en
  • CA392514A - Sound insulation structure : en fr
  • US2220995A - Check mechanism : en
  • US2221312A - Means adapted to reproduce sounds or other sensory effects : en
  • US2221727A - Preheating tumbler : en
  • CA392521A - Automobile brake equalizer : en fr
  • US2220911A - Shaving device : en
  • US2221618A - Laminated magnet : en
  • US2221482A - Measuring device : en
  • US2221253A - Magnesium base alloy : en
  • US2221291A - Narrowing mechanism for flat knitting machines : en
  • CH212145A - Process for the manufacture of agglomerated fibrous products and installation for the implementation of this process. : en fr
  • CH212294A - Mechanical device for the delayed actuation of contacts, in particular on teletyping machines. : de en
  • AU1607744A - Manually operated air pump : en
  • CH212260A - Packing press for fruit juice extraction. : de en
  • AU489139A - Improved apparatus for dosing flush systems : en
  • US2221682A - Apparatus for treating fruit : en
  • US2221116A - Degenerative amplifier circuit : en
  • US2220922A - Electrical wave filter : en
  • US2220990A - Connector for the liquid cooling and electric systems of welding apparatus : en
  • CH212303A - Cathode ray image decomposer. : de en
  • CH212337A - Process for the preparation of a ketone of the cyclopentanopolyhydrophenanthrene series. : de en
  • US2220992A - Pencil and crayon rod : en
  • US2221301A - Treatment of unsaturated hydrocarbon oils : en
  • USD123561S - Design fob a wallpaper : en
  • AU1521444A - Apparatus for separating suspended particles from gaseous media : en
  • US2220963A - Azo dyestuffs : en
  • US2221276A - Direction indicator switch : en
  • US2221554A - Sealed bearing : en
  • US2221177A - Can closure : en
  • US2221225A - Balancing and leakage device for centrifugal pumps : en
  • US2221385A - Separation of solids from gases : en
  • US2221394A - Mechanical shaving device : en
  • US2221673A - Collar holder : en
  • USD123507S - Base for railway crossings : en
  • US2220942A - Acoustic device : en
  • US2220914A - Elastic fluid turbine bucket wheel : en
  • USD123472S - Design fob a protector mat for kitchen tables, stoves, and the like : en
  • CH212146A - Device for protecting houses, pillars, etc. against contamination by dogs. : de en
  • CA392407A - Trailer-crane : en fr
  • CH212315A - Cover for the rear wheels of streamlined bodies. : de en
  • US2220953A - Signaling device : en
  • US2221461A - Offset disk harrow : en
  • US2221209A - Method of making jacketed rods and the like : en
  • US2221147A - Preparation of aminated esters of sulphydryl compounds : en
  • US2221364A - Hinge for book covers : en
  • GB528907A - Improvements in or relating to the manufacture of metal mosaics : en
  • DE698452C - Seal between the one-sided mounted drainage pipes of bag filters and the pipe socket leading through the container wall : de en
  • DE698609C - Concrete bathtub foot : de en
  • US2221132A - Sole construction for shoes : en
  • DE698557C - Process for closing high-voltage circuits with the help of controlled gas or vapor-filled discharge vessels : de en
  • AT159754B - Gyroscopic device, especially gyroscopic solder. : de en
  • US2221493A - Undergarment : en
  • US2221431A - Structural material : en
  • USD123555S - Design fob a wallpaper : en
  • AU111844B2 - Improvements in liquid dispensing systems : en
  • US2221704A - Holder : en
  • US2221418A - Thiodiglycol-polycarboxylic acid condensation products : en
  • DE698537C - in AC systems : de en
  • GB529155A - An improved pull fastener : en
  • US2220937A - Tour key for watchmen's signal systems : en
  • FR857954A - Sewing Machine Improvements : en fr
  • AU111835B2 - Improved apparatus for dosing flush systems : en
  • CA392452A - Electric discharge device : en fr
  • US2220921A - Apparatus for applying flock : en
  • US2221135A - Method and form for making dress shields : en
  • CH212249A - Thread holder. : de en
  • US2221179A - Fuel injection pump : en
  • US2221325A - Adjustable clamping device : en
  • US2221333A - Stabilized soap : en
  • US2221404A - Treatment of glyceride oils : en
  • CH212276A - Electric discharge tube with device for Faraday acceleration of the electrons. : de en
  • US2221545A - Cotton cleaner : en
  • US2220884A - Sextant : en
  • US2220956A - Oscillation generator : en
  • FR50491E - Automatic dispenser with overlapping compartments : en fr
  • CH212289A - Process for the production of a disinfectant. : de en
  • CH212314A - Body for vehicles with air-cooled engines, in particular for streamlined vehicles with rear engines. : de en
  • US2221150A - Controlling hydraulically actuated devices : en
  • US2221233A - Faucet : en
  • DE698672C - Gear for cinematographic cameras driven by spring mechanism : de en
  • US2221667A - Ignition means for gas heaters : en
  • US2221053A - Chain link side bar, or the like, having extruded locking lugs : en
  • US2221244A - Magnesium base alloy : en
  • US2221278A - Trailer hitch : en
  • CH212164A - Carburetor. : en fr
  • CH212313A - Engine cover on streamlined vehicles with a rear engine. : de en
  • AU148040A - Improvements in or relating to circuit-arrangements comprising an inductance provided withan iron core : en
  • US2221330A - Alarm device for automobiles : en
  • DE698551C - Circuit arrangement for avoiding electrical-acoustic feedback in telephone subscriber stations : de en
  • GB529144A - Improvements connected with multiple spindle metal cutting machines or screw machines : en
  • DE698668C - Device for the intermittent advancement of long metal sheets in sheet metal processing machines : de en
  • US2221066A - Process for the recovery of the sulphurous acid produced in the sulphite cellulose cooking process : en
  • US2221095A - Door locking and latching mechanism : en
  • US2221603A - Means of charging dust at wire supports of electrical precipitators : en
  • CH212322A - Pneumatic door mover. : de en
  • US2220999A - Insulated structure : en
  • GB529131A - Improvements in or relating to electrical filters of the piezo electric crystal type : en
  • US2221440A - Resinous composition, method of making the same, and article produced therefrom : en
  • DE698492C - Device for resilient interception of landing areas : de en
  • DK58152C - Discharge tube for atomic transformation. : da en
  • GB528992A - Improvements in and relating to sliding members of sliding clasp fasteners : en
  • FR857982A - Device for igniting and feeding electric discharge tubes : en fr
  • FR857991A - Shoe Edge Cutting Machine : en fr
  • GB529012A - Improvements in and relating to control mechanism for internal combustion engines : en
  • GB529197A - Improvements in or relating to alkylation of hydrocarbons : en
  • FR857968A - Improvements to machine tools and accessory devices forming tool support for these machines : en fr
  • GB528927A - Improvements in or relating to feeding mechanism for sewing machines : en
  • FR50495E - Improvements to hydraulic compressors : en fr
  • FR858074A - Ceramic products, and their preparation process : en fr
  • FR858084A - Detection of the presence, direction and coordinates of aircraft in a specific area : en fr
  • DK58142C - Method and Apparatus for continuous extraction. : da en
  • GB528970A - Improvements in and relating to the manufacture of electric cables : en
  • US2221026A - Manufacture of anhydrides of higher fatty acids : en
  • US2221614A - Method of manufacturing selenium rectifiers : en
  • FR858020A - Electricity meter with prepayment : en fr
  • FR858082A - Distributor of grease and other similar materials : en fr
  • DE698734C - Bone conduction telephone for the transmission of sound energy generated by a vibrating crystal via the skull bones to the inner ear : de en
  • US2220888A - Refrigerating apparatus : en
  • US2221316A - Rubber process : en
  • US2221634A - Manifolding machine : en
  • US2221722A - Method of making elastic fluid turbine buckets : en
  • DE698640C - Process for filling and sealing porous, permeable soil layers such as gravel, sand and the like. Like layers : de en
  • US2221504A - Box and the like : en
  • US2221052A - Bakepan : en
  • US2221075A - Brake mechanism : en
  • US2221658A - Production of valuable products from methane gases : en
  • DE698678C - Vascular closure : de en
  • US2221387A - Power take-off : en
  • GB529171A - Improvements in and relating to temperature regulators : en
  • CH212282A - Arrangement on power converter systems in which the individual power converters are supplied with alternating voltages shifted in phase with the help of transformers to compensate for harmonics. : de en
  • US2221292A - Pumping power : en
  • US2221307A - Conductivity testing system and method : en
  • USD123524S - Design for a dress : en
  • AU492739A - Improvements in and relating torat traps : en
  • USD123493S - Design for a clock or similar article : en
  • AU111857B2 - Washing machine : en
  • CA392413A - Yarn package treating process : en fr
  • US2221341A - Method of preparing petroleum waxes for coating containers : en
  • CA392432A - Clamping device : en fr
  • GB529194A - Improvements in or relating to alkylation of hydrocarbons : en
  • US2221616A - Copper oxide rectifier : en
  • GB529228A - Improvements in or relating to decorative fabrics and fabric-covered panels : en
  • FI18885A - Centraliskylningsanläggning : en fi
  • GB529064A - Improvements in or relating to band pass filters : en
  • US2220934A - Alloy steel articles : en
  • US2220947A - Piston ring : en
  • US2221071A - Pump : en
  • DE698503C - Connector : de en
  • DE698763C - Process for the production of additively reproduced color films by recording by means of beam splitting and bipack films : de en
  • USD123504S - Design for a bake pan : en
  • FR857987A - Colorants for vat : en fr
  • DE698780C - Paw support for DC traction motors in electrically powered vehicles : de en
  • ES4614Y - Folding chair : en es
  • CH212222A - Anti-slip device for skis. : en fr
  • US2221178A - Signal device : en
  • USD123513S - Taylor ex : en
  • USD123526S - Design fob a dress : en
  • GB528968A - Improvements in or relating to coal cutting machines and the like for the laying of dust and suppression of flame, and dissipation of gas : en
  • GB529198A - Improvements in and relating to machines for shaping cartons : en
  • US2221653A - Railway track circuit apparatus : en
  • CA392419A - Ore sintering method : en fr
  • AT159795B - Process and device for remelting and refining light metal waste. : de en
  • CA392526A - Bearing manufacture : en fr
  • DE698520C - Visual process for discharging finely ground gestures : de en
  • DE698733C - Rear support bearing for upper sleeping areas in two-bed compartments of sleeping cars, especially for rail vehicles : de en
  • FR858025A - Process for establishing coatings in several layers using varnishes containing raw materials capable of forming reversible films : en fr
  • CH212160A - Process for the production of heating briquettes. : de en
  • CH212232A - Arrangement for keying radio beacons. : de en
  • US2220889A - Communication system : en
  • US2221498A - Sheet metal fastening means : en
  • DE698519C - Process for the production of a mother plate for screens or other perforated metal objects : de en
  • US2221332A - Cultivator : en
  • US2221728A - Noise-limiting circuit for carrier wave communication systems : en
  • US2221623A - Treatment of manganese : en
  • CH212237A - Upper bearings in sensitive instruments such as electricity meters. : de en
  • US2221738A - Ash receiver : en
  • US2221288A - Folding umbrella : en
  • DE698638C - Process for the production of concrete stone slabs : de en
  • US2220879A - Removable handle for utensils : en
  • US2221097A - Musical instrument : en
  • CH212311A - Braking system for motor vehicles. : en fr
  • FR858069A - Improvements in the assembly of handles or the like of window regulators or others : en fr
  • US2221363A - Toothbrush : en
  • CA392495A - Railway car : en fr
  • DE698564C - Device for automatic conveying and shearing of the fuel on flat grates of furnace systems : de en
  • US2221468A - Apparatus for handling strip metals : en
  • US2221398A - Amplifier : en
  • US2221677A - Storage battery : en
  • US2221413A - Straight-line clock : en
  • CA392416A - Parachute : en fr
  • FR858062A - Mechanical seed drill : en fr
  • GB529127A - Magnesium carbonate composition and process for the preparation thereof : en
  • AU473842A - Improvements in or connected with rangefinders, heightfinders and like optical measuring instruments : en
  • CH212349A - Straightener. : de en
  • CA392428A - Door lock : en fr
  • DE698724C - Night safe system : de en
  • FR858053A - Device for controlling shutters or sash windows : en fr
  • GB529216A - Improvements relating to metal spraying : en
  • GB529174A - Improvements in and relating to road surface boxes : en
  • US2220901A - Refrigerator car hatch arrangement : en
  • AU122638B2 - Stabilizer for fire extinguishing foam : en
  • CH212299A - Coin operated telephone with a charge control device in self-connecting telephone systems. : de en
  • US2221065A - Fiber cutter : en
  • US2221342A - Mill : en
  • US2221680A - Auger : en
  • US2220878A - Fish lure winder : en
  • US2221556A - Electrical connector apparatus : en
  • USRE21621E - Wire spring fob cushioned seats : en
  • AU489739A - Improvements relating to electrical phase shifting devices : en
  • CH212221A - Ski. : de en
  • DE698746C - Device for dispensing powdery or powdery substances : de en
  • GB528916A - Improvements relating to the tuning of wireless receivers : en
  • GB528995A - Improvements in or relating to latches : en
  • CA392447A - Oscillator control : en fr
  • AT159775B - Arrangement for differentiating the zeros that occur in an ambiguous bearing system. : de en
  • DE698539C - Rotary kiln for metallurgical and chemical purposes : de en
  • CA392422A - Ventilating window sash : en fr
  • AU495439A - Improvements in or relating to magneto-strictive echo sounding apparatus : en
  • CH212179A - Web shuttle with built-in weft coil sensor. : de en
  • FR858024A - Device for automatic adjustment of the width of the frequency band in t receivers. s. f. : en fr
  • US2220950A - Water treatment : en
  • US2221229A - Signaling apparatus : en
  • CH212166A - Chair seat. : de en
  • AT159783B - Water post. : de en
  • US2221088A - Marking or setting out tool : en
  • US2221684A - Elastic fluid turbine bucket wheel : en
  • AU1675444A - Method of and means for building concrete structures : en
  • CH212264A - Device for fine distribution of liquid, powdery and gaseous substances. : de en
  • AU492239A - Washing machine : en
  • FR50479E - Adjustable hydraulic shock absorber : en fr
  • AU111848B2 - Improvements in straw walkers for harvesting machines : en
  • AU123440A - Improvements in or relating tothe reduction of magnesium : en
  • CA392427A - Paper transparency : en fr
  • FR858040A - Device for stopping aerosols and certain gases : en fr
  • GB529022A - Improvements in sedimentation apparatus : en
  • GB529219A - Improvements relating to flame-proof electric plugs : en
  • CA392417A - Brick wall laying method : en fr
  • AU111851B2 - Method of forming and maintaining a protective coating on metal surfaces : en
  • DE698600C - Process for the operation of absorption refrigeration apparatus : de en
  • DE698684C - Rail current switch : de en
  • DE698585C - abel : de en
  • US2221170A - Automatic spectrophotometer : en
  • FR50463E - Method of actuating signals in railway signaling installations by track circuits, and application devices : en fr
  • DE698553C - Leading conductors carrying electrical insulating bodies of existing electrical equipment or equipment : de en
  • DE698650C - Magnetic lens with short focal length for electron microscopes : de en
  • FR50464E - Improvements to switches or switches controlled by a key, in particular to those of the electrical circuits of motor vehicles : en fr
  • IE15948L - Luminescent discharge lamps : en
  • US2221112A - Synchronizing and phasing device : en
  • US2221121A - Fluid motor : en
  • GB529098A - Method of assembling pieces of toughened glass : en
  • AU111847B2 - Improvements in or relating to magneto-strictive echo sounding apparatus : en
  • US2221688A - Air conditioning apparatus : en
  • FR858055A - Improvements to piezoelectric cells : en fr
  • USD123471S - Design for an indicating instrument : en
  • DE698550C - Pulse series corresponding to picture elements are transmitted through a magnet system and a rotating writing spindle and the lines of which are composed of lines of equal length running parallel to the recording direction : de en
  • FR858097A - Distributor for glass furnaces : en fr
  • GB529193A - Improvements in or relating to fastening means for garments : en
  • US2221146A - Narrow ware loom : en
  • US2221187A - Assembling and welding car frame sides : en
  • GB529040A - Improvements in cleaning and foaming compositions : en
  • AU111853B2 - Improvements relating to reciprocating screens : en
  • FR858076A - Grapple to form defensive obstacles for all applications and especially against tanks : en fr
  • US2221520A - Apparatus for manufacturing carbon dioxide : en
  • US2221043A - Overhead conveyer : en
  • US2221489A - Dyeing machine : en
  • GR9336B - METHOD FOR THE PREPARATION OF SULPHONAMIC COMPOUNDS. : el en
  • GB529039A - Improvements in apparatus for feeding ingots to melting-pot furnaces : en
  • FR858061A - Improvements to track circuit signaling systems : en fr
  • DE698622C - yd aluminum or aluminum alloys : de en
  • FR50459E - Improvements to liquid fuels : en fr
  • DE698469C - Telescope system for rangefinder : de en
  • GB529081A - Improvements in coumaranes and chromanes and method of producing the same : en
  • DE698483C - Process for producing multicolored images : de en
  • DE698554C - Connection clamp for aluminum lines with spreadable, resilient legs : de en
  • US2221693A - Ice tray : en
  • US2221731A - Grease demonstrating device : en
  • CA392528A - Photographic layer : en fr
  • CH212227A - Rocket for artillery projectile. : en fr
  • USD123476S - Design for a lace : en
  • FR857995A - Method and devices for the rapid construction of concrete floors, walls or other walls : en fr
  • GB529113A - Improvements in devices for preventing the sinking of canoes and like small water craft : en
  • GB528944A - Improvements in or relating to radio receiving apparatus : en
  • GB529077A - Improvements in or relating to dual wheel vehicles : en
  • DE698723C - Wheel brake cylinder for fluid brakes, especially on motor vehicles : de en
  • US2221138A - Filiform guide : en
  • US2220900A - Umbrella handle for holding rubbers, sandals, or overshoes : en
  • US2221488A - Motor vehicle : en
  • US2221521A - Electric ignition system : en
  • US2220977A - Television system : en
  • US2221433A - Spray machine : en
  • US2221512A - Ball or roller bearing : en
  • FR857992A - Speed transformer : en fr
  • US2221529A - Door lock : en
  • FR50494E - Process for extracting starch by washing from the ground ground mass containing starch and device for carrying out this process : en fr
  • GB529137A - Improvements relating to roll grinding machines : en
  • US2221347A - Thermostatic liquid transmission system : en
  • USD123517S - Design for a housing for feed mixer : en
  • GB529057A - Improvements in air-intakes for aircraft engines : en
  • GB529145A - Improvements in surface finishing machines : en
  • GB529182A - Improvements relating to rotary printing and numbering machines : en
  • CH212251A - Device on machine tools for lifting a back and forth cutting tool when reversing. : de en
  • DE698737C - Beat tone generator in which a double push-pull modulator with two duo diodes is used as the mixing element : de en
  • US2221550A - Roll-over type dammer : en
  • US2221249A - Magnesium base alloy : en
  • US2221636A - Condition controller : en
  • CA392470A - Electric commutator : en fr
  • CH212278A - Arrangement for reducing electrical oscillation phenomena in power converter systems. : de en
  • CH212312A - Device for starting up and shifting gears in motor vehicles with a gearbox, friction clutch and auxiliary device for actuating this clutch. : de en
  • CH212169A - Cleaning device with bristles made from tree-grown wood. : de en
  • USD123544S - Design for a scarf : en
  • US2221010A - Air conditioning device : en
  • US2221470A - Method of making flexible pressure containers : en
  • NL49545C - : en
  • US2220961A - Soldering alloy : en
  • US2221070A - Electron multiplier tube : en
  • US2221077A - Gas supply system : en
  • US2221455A - Nozzle : en
  • US2220905A - Oxygen regulator : en
  • FR50471E - Mounting device for automobile headlights : en fr
  • GB529093A - Improvements in and relating to tipping gear : en
  • DE698494C - Loading device for grainy substances : de en
  • US2221652A - Telephone system : en
  • AU111865B2 - Improvements in or relating to circuit-arrangements comprising an inductance provided withan iron core : en
  • AU494839A - Improvements in or relating to electron multipliers : en
  • CH212137A - Device for mounting tools for working the soil on a two-wheel tractor. : en fr
  • DE698707C - Letter scale with tilt lever : de en
  • US2221588A - Regulating system : en
  • US2221687A - Transformer assembling method and apparatus : en
  • US2221161A - Treatment of naphthene base oil : en
  • US2221261A - Method of treating wells : en
  • GB529096A - Improvements relating to dynamo regulators : en
  • DE698664C - Optical device for flame spectral analysis : de en
  • CH212271A - Refrigerator insulation. : de en
  • USD123515S - Game table or similar article : en
  • US2221119A - Guard for razors and hair clippers : en
  • US2221696A - Apparatus for forming a woven wire belt : en
  • USD123554S - Design for a wallpaper : en
  • DE698498C - Process for the reduction of crude phenols : de en
  • DE698731C - Device for laying out the from a printing machine : de en
  • FR857972A - Process for the production and recovery of branched chain aliphatic compounds : en fr
  • US2221537A - Spark plug : en
  • US2221606A - Signaling system for night landing of aircraft : en
  • USD123502S - Design for a container cap : en
  • CA392498A - Leather splitting machine : en fr
  • DE698487C - Apparatus for generating physical foam for fire extinguishing purposes : de en
  • US2221152A - Illuminating means for navigating instruments : en
  • US2221402A - Lamp ejector : en
  • US2221505A - Combined adapter and reflector for lamps : en
  • US2221163A - Recovery of silver from spent photographic solutions : en
  • CH212360A - Process for preparing a water-soluble sulfonic acid amide compound. : de en
  • DE698459C - Single-phase leakage transformer with controllable direct current pre-magnetized shunt : de en
  • US2220904A - Radio compass system : en
  • US2221222A - Air compressor controller : en
  • US2221655A - Party line telephone system : en
  • CA392460A - Speed gear : en fr
  • CA392426A - Building heating system : en fr
  • CA392487A - Styphnic acid and salt : en fr
  • US2221285A - Silver alloy : en
  • CA392520A - Radio tone control system : en fr
  • AT159779B - Clamping piece for connecting the current lead to electrical collectors. : de en
  • CH212162A - Automatic oil supply device on oil furnaces. : de en fr
  • US2221215A - Amusement device : en
  • US2221273A - Chemical proportioner : en
  • US2221294A - Decolorizing paper stock : en
  • CA392457A - Aircraft retractable winter landing gear : en fr
  • DE698538C - Series-excited direct current cross-field machine : de en
  • DE698578C - Exchange pen with lead carriers that can be moved against the action of return springs by sliding buttons : de en
  • US2220917A - Camera : en
  • CH212185A - Suspender. : en fr
  • CH212341A - Process for the preparation of 1-benzyl-4-phenyl-piperidine-4-carboxylic acid nitrile. : de en
  • CH212270A - Gas or steam turbine. : de en
  • GB528903A - Improvements in or relating to the combustion spaces of internal combustion engines : en
  • CA392424A - Motion effect creating device : en fr
  • CH212168A - Device for storing boys' and men's trousers. : de en
  • CH212212A - Accounting apparatus. : de en
  • CH212309A - Device for connecting two parts. : de en
  • US2221057A - Well agitator : en
  • CH212305A - Method and device for indicating the passing of vehicles. : de en
  • CA392472A - Change speed gearing : en fr
  • GB529089A - Improved metal netting particularly applicable to fencing and reinforcing structuresand a method of producing the same : en
  • GB529181A - Improvements in and relating to furniture and like structures : en
  • US2220985A - Classification of mixed divided material : en
  • US2221133A - Scaffold : en
  • CH212170A - Device with germ filter for ventilating an airtight container filled with sterile liquid. : de en
  • US2221064A - Ball type detachable coupling : en
  • USD123541S - Design for a dress : en
  • US2221213A - Tape dispenser : en
  • US2221627A - Alloys of manganese, chromium iron, and boron : en
  • AT159760B - Method for improving the wear resistance of cast iron liners, pistons, etc. by quickly creating a mirror-smooth inlet surface. : de en
  • CH212191A - Process for the preparation of a ketone of the cyclopentanopolyhydrophenanthrene series. : de en
  • US2221124A - Clip : en
  • US2221585A - Pumping apparatus : en
  • US2221204A - Cementing plug : en
  • US2221221A - Rotary soil tiller : en
  • CH212161A - Plant for the implementation of this method.en fuels using two furnaces, one of which is set up to burn inferior fuels and the other to burn high-quality fuels, and : de en
  • GB528972A - Improvements in glands for centrifugal pump and like shafts : en
  • AU122668B2 - Improvements in mobile cranes : en
  • AU111858B2 - An improved gas producer : en
  • AT159799B - Mouldable compounds, films, varnishes, adhesives and application compounds of all kinds. : de en
  • US2221001A - Ventilating ceiling : en
  • US2221167A - Cooling system : en
  • US2221691A - Vacuum distillation : en
  • DE698451C - Process for etching colors with substantive azo dyes : de en
  • CA392504A - Shoe edge-setting machine : en fr
  • CA392468A - Elastic yarn making machine : en fr
  • AU122633B2 - Improvements in or connected with rangefinders, heightfinders and like optical measuring instruments : en
  • DE698729C - Water tube boiler : de en
  • AU815243A - Improvements relating to the supply of air-fuel mixture to internal combustion engines : en
  • GB528949A - Improvements in gas masks : en
  • CA392510A - Fluid pressure valve mechanism : en fr
  • CA392437A - Chlorine production : en fr
  • CA392511A - Acid amide compound manufacture : en fr
  • CH212172A - Process for the production of threads from viscose. : de en
  • DE698525C - Device for utilizing air forces and for balancing cross winds and lateral gusts and for achieving better cornering in motor vehicles : de en
  • US2221270A - Phonograph record disk : en
  • CH212163A - Chimney draft regulator. : de en
  • AT159789B - Electric resistance welding machine for the production of wire grids of various mesh sizes. : de en
  • AU561339A - Improvements in or relating to rubber composition and method of preserving rubber : en
  • CH212151A - Parquet floor. : de en
  • GB528941A - Mixing apparatus : en
  • GB529023A - Process for the manufacture of condensation products from ª‰-tocopherol and ª‡, ª‰-unsaturated alkyl halides : en
  • US2221060A - Blotter attachment for pens : en
  • USD123558S - Design for a shirt : en
  • CH212244A - Clockwork movement with motor barrel. : en fr
  • CH212198A - Process for the separation of phenols from phenol-containing products, in particular from tar oils and the like. : de en
  • US2221008A - Apparatus for separating materials : en
  • US2221409A - Horn button assembly : en
  • US2221546A - Tractor : en
  • AU168840A - Improvements in or relating to looms with stationary weft supplies : en
  • CH212213A - Method and device for coloring the matrices of single-drum rotary duplicating machines. : de en
  • CH212259A - Drive of a movable spindle. : de en
  • AT159758B - Distributors for ignition devices. : de en
  • AU111866B2 - Improved suction or vacuum cleaners : en
  • CH212255A - Process for the production of graphic products with shiny metallic symbols and characters. : de en
  • CA392523A - Pure sodium cyanide : en fr
  • CA392415A - Shoe : en fr
  • CH212288A - Process for disinfecting objects and spaces. : de en
  • CH212319A - Device for locking hand brakes on vehicles such as bicycles etc. : de en
  • CH212224A - Toy. : de en
  • CH212269A - Gas turbine plant. : de en
  • FR858094A - Helical blower device : en fr
  • CA392527A - Condenser electrode manufacture : en fr
  • DE698536C - Circuit arrangement for company lines with teletype operation : de en
  • DE698624C - Honor of cassettes for individual layer carriers : de en
  • FR857967A - Device for transporting and / or keeping a drawer removed from a cash register : en fr
  • FR857977A - Improvements to universal couplings : en fr
  • CH212158A - Base plate for doors with a built-in door closer, especially for swing doors. : de en
  • DE698528C - Device for preventing fogging of windshields : de en
  • US2221441A - Coating evening means for paper laminating machines : en
  • US2221436A - Skiving machine : en
  • CA392502A - Shoe pounding apparatus : en fr
  • AT159752B - Remote compass. : de en
  • US2221143A - System and apparatus for piano instruction : en
  • US2221274A - Knee control for accelerators : en
  • US2221558A - Flat shaft control device : en
  • US2221067A - Structural steel derrick : en
  • NL49629C - : en
  • US2221142A - Steam generator : en
  • US2221564A - Safety control device for gas governors : en
  • GB529000A - Improvements in spring catch devices : en
  • US2220926A - Internal combustion engine : en
  • CH212156A - Safety locking device. : de en
  • DE698687C - Machine for raising cross floors on paper bags : de en
  • FR858091A - New construction process, buildings obtained using this process, as well as the elements and blocks used for the construction : en fr
  • US2221452A - Frequency-dividing system : en
  • US2221478A - Production of guanidine salts : en
  • US2221217A - Permeability tuned coupling device : en
  • US2221437A - Fishing float : en
  • ES4640Y - A new wooden shovel for winnowing crops : en es
  • GB529071A - Improvements relating to lids for saucepans or like utensils : en
  • CH212216A - Photoelectric light meter. : de en
  • CH212316A - Power transmission device with a hydraulic fluid transmission to which a hydraulically operated friction clutch is connected, in particular for motor vehicles. : de en
  • US2221005A - Insulating shield : en
  • US2221449A - Rear vision mirror : en
  • US2221450A - Refrigerating apparatus : en
  • US2221619A - Electrical induction apparatus : en
  • CH212204A - Process for the production of shaped structures, such as fibers, threads, horsehair, ribbons, films etc. from cellulose and cellulose derivatives. : de en
  • GB528939A - Improvements in carburettors for internal-combustion engines : en
  • AU111834B2 - Improvements relating to electrical phase shifting devices : en
  • CA392518A - Fuel mixture and scavenging gas control device : en fr
  • CH212265A - Automatic needle nozzle. : de en
  • DE698745C - Device for suction massage : de en
  • CA392411A - Fishing lure : en fr
  • DE698522C - Bag or the like with a foldable closure tab : de en
  • ES5301U - Device to keep the tips of the collar of the non-starched shirt stretched. (Machine-translation by Google Translate, not legally binding) : en es
  • DK58149C - High voltage switch. : da en
  • GB529043A - Improvements relating to the moulding of goods containing fireclay : en
  • US2221695A - Apparatus and method for making thin rubber articles : en
  • GB529157A - Improvements in or relating to conveyor systems : en
  • GB529215A - A device for coupling together a series of blind rollers to enable them to be controlled by a single operating means : en
  • DE698751C - Device for heating, in particular canned food : de en
  • FR50457E - Improvements to telephone systems : en fr
  • FR858036A - Armored combat vehicle : en fr
  • GB529169A - Improvements in or relating to telephone systems : en
  • GB529114A - Process of refining soy bean phosphatide : en
  • GB529148A - Improvements in and relating to elastic fluid turbine plants : en
  • USD123548S - Design for a rug or similar article : en
  • CH212197A - Process for the preparation of a derivative of 2,3,6-triaminopyridine. : de en
  • CH212274A - Remote time switches, in particular for stairwell lighting. : de en
  • US2221090A - Brake : en
  • US2221205A - Christmas tree stand : en
  • US2221581A - Trolley fixture : en
  • AU1524844A - Improvements in apparatus for measuring and dispensing liquids : en
  • CA392446A - High frequency oscillator : en fr
  • US2221196A - Front axle of rear-motored automobiles : en
  • US2220910A - Method of producing cathode sleeves for thermionic valve : en
  • US2221371A - Shaft coupling : en
  • CH212243A - Watch movement. : en fr
  • GB528999A - Improvements in handles, knobs, and like devices : en
  • AU492439A - An improved gas producer : en
  • US2221085A - Engine starter : en
  • US2221231A - Hack saw frame : en
  • US2221423A - Refrigerating apparatus : en
  • CA392519A - Cellulose derivative processing composition : en fr
  • GB529146A - Improvements in or relating to pots for molten metal, slag and the like : en
  • DE698696C - Motor protection device with start lock : de en
  • US2221571A - Commutator and clamping structure therefor : en
  • US2221648A - Pocket protector : en
  • DE698448C - Compression brake for motor vehicles : de en
  • CA392508A - Oil hydrogenation process : en fr
  • DE698606C - Device for the optional operation of a combustion system with natural or artificial draft : de en
  • GB529183A - Electron discharge device employing successive multiple secondary emissions : en
  • GB529204A - Improvements in or relating to open metal flooring and the like : en
  • CH212308A - Device for the mechanical filling of packages with identical products. : en fr
  • DE698702C - Electric space heating system with electrode heating : de en
  • US2221024A - Film box for miniature film : en
  • CH212219A - Teaching aid to visualize the dependence of the electrical resistance on the specific resistance and the geometric dimensions. : de en
  • US2221476A - Slide rule : en
  • DE698736C - Device for preventing the emission of selective currents by means of the hook switch : de en
  • USD123508S - De sign for a game board : en
  • US2220967A - Door closing and checking device : en
  • US2221572A - Vacuum cleaner construction : en
  • FI18886A - Förfaringssätt och apparat för rening av avfallsvatten : en fi
  • USD123547S - Design for a dress : en
  • US2221310A - Fabricated insulation : en
  • US2221628A - Blueprint coating : en
  • DE698482C - Roll film camera : de en
  • GB528956A - Cooling of sleeve valve internal combustion engines : en
  • GB528998A - Improvements in or relating to aerials and associated feeder arrangements : en
  • DE698628C - Aircraft with either rotating or fixed wings : de en
  • US2220964A - Television transmitter tube : en
  • GB528955A - Improved manufacture of titanium dioxide pigments : en
  • GB529095A - Improvements in calculators : en
  • ES4544Y - Capping device : en es
  • CH212310A - Automatic trailer brake. : de en
  • GB529046A - Control valve mechanism : en
  • US2221705A - Fluid drive for vehicle wheels : en
  • DE698593C - Electrostatic separator for separating electrically differently behaving particles in a mixture, especially fine dust : de en
  • US2220952A - Production of improved pigments : en
  • US2221281A - Picker stick check strap for automatic looms : en
  • US2221621A - Section insulator : en
  • US2221015A - Periodic wave generator : en
  • US2221631A - Paper file and binder : en
  • DE698685C - Lining of furnaces and ovens : de en
  • GB528932A - Improvements in or relating to lifting jacks : en
  • US2220913A - Container : en
  • US2220957A - Device for and method of attaching heels to shoes : en
  • US2221140A - Process for bleaching montan wax : en
  • US2221671A - Gas dielectric media : en
  • US2221188A - Electrical musical instrument : en
  • GB528957A - Improvements in and relating to treating chambers in which water is sprayed into an air stream : en
  • CA392478A - Pumping system : en fr
  • GB529116A - Improvements in and relating to sheet metal underframes for gas cookers and the like : en
  • GB529025A - Improvements in or relating to telephone systems : en
  • GB529036A - Improvements in or relating to casings for apparatus for operating upon shoe parts : en
  • DE698504C - Socket with locking against single-pole insertion of a plug : de en
  • DE698695C - Arrangement for switching a radio receiver : de en
  • GB529115A - Improvements in and relating to heating, cooking and like apparatus : en
  • GB529163A - Improvements in automatic selectivity devices for tuned circuits : en
  • AT159793B - Process for the treatment of cultivated plants or cultivated soils. : de en
  • AU1760844A - Improvements in and relating to wrenches : en
  • US2220875A - Boat construction : en
  • US2220933A - Alloy steel articles : en
  • US2220876A - Automobile hood and lid support : en
  • US2221062A - Refrigerating apparatus : en
  • US2221181A - Automobile door locking mechanism : en
  • FR857978A - Mask for filtering or insulating breathing apparatus : en fr
  • GB528976A - Improvements in or relating to typewriting and like machines : en
  • DE698472C - Device for keeping constant and regulating the working speed of statically acting material testing machines with hydraulic drive : de en
  • US2221040A - Antiglare device for head lamps : en
  • US2221302A - Investment ring heater : en
  • US2221535A - Piston : en
  • US2221713A - Knitting machine : en
  • US2221443A - Mouthpiece cigarette manufacture : en
  • GB529068A - Improvements in or relating to electric switches operated through ratchet mechanism : en
  • DE698644C - Modulation device : de en
  • CH212167A - Device on a deck chair. : de en
  • DE698450C - ei strip mills : de en
  • NL49608C - Carrier for negative for use in projection and magnification devices. : en nl
  • US2220954A - Weld rod coating : en
  • US2221361A - Metal compounds of azo dyestuffs : en
  • FR857998A - Process for obtaining mineral oils : en fr
  • US2221487A - Dispensing device for detergents : en
  • US2221037A - Color filter for photomechanical processes : en
  • US2221510A - Ironer table : en
  • FR858009A - Device for pumping milk : en fr
  • GB528917A - Improvements relating to the waterproofing of tunnels and underground chambers : en
  • US2221251A - Magnesium base alloy : en
  • US2221145A - Refrigeration : en
  • US2221334A - Macaroni filter : en
  • US2221739A - Hypodermic syringe : en
  • GB528908A - Improvements in inspection lamps : en
  • GB529156A - Improvements in or relating to transportable lifting devices for transferring goods to and from storage : en
  • GB528930A - Improvements in gudgeon pins : en
  • US2221250A - Magnesium base alloy : en
  • US2220944A - Furnace or boiler wall construction : en
  • US2221141A - Dowel pin : en
  • US2221098A - Portable picnic stove : en
  • US2221092A - Change speed device : en
  • GB529126A - Method of producing a self-set magnesium carbonate composition : en
  • FR50473E - Direction indicator for vehicles : en fr
  • GB529220A - Improvements in or relating to portable electrically driven tools : en
  • US2221463A - Clutch driven plate : en
  • USD123475S - Design fob a lace : en
  • DE698625C - Maltese cross gearbox for motion picture projector : de en
  • AU1545744A - Improvements in or relating to welding rods : en
  • US2221379A - Razor : en
  • US2221681A - Volume control system : en
  • CH212279A - Arc converter with electrodes in flowing gas. : de en
  • US2221530A - Refrigerating system : en
  • CH212266A - Fuel feed pump. : de en
  • CH212342A - Process for the preparation of 1,4-bis-phenyl-piperidine-4-carboxylic acid nitrile. : de en
  • DE698739C - Device for limiting the number of switching positions on four-stroke and multi-stroke rotary switches with a locking mechanism : de en
  • GB529092A - Improvements in or relating to milling of cereal grain : en
  • US2220912A - Merchandise package : en
  • US2220976A - Shortening : en
  • GB529100A - Improvements in or relating to selector switches for use, for instance, in telephone systems : en
  • FR857952A - Unitubular steam generator : en fr
  • FR858087A - Electro-dynamic apparatus intended to transform sounds and comprising an oscillating coil placed in a magnetic field : en fr
  • GB528964A - Improvements in or relating to detergent compositions for washing dishes, cutlery and the like : en
  • DE698674C - Single blades for controllable pitch propellers made of two wooden blade halves : de en
  • FR858002A - Process for improving cellulose yarns and fabrics : en fr
  • GB528960A - Improvements in automatic multiple spindle turret machines for turning, drilling, tapping and the like : en
  • FR50499E - Electrically operated valve for pressurized fluids : en fr
  • GB529196A - Improvements in or relating to sheet feeding apparatus : en