• US1931278A - Lubricating apparatus : en
  • DE586174C - Arrangement to prevent incorrect response of high-speed relays that are influenced by the current and voltage of a circuit : de en
  • US1930836A - Electric oven : en
  • AU1104133A - Improvements in or relating to means for conducting fluids to reciprocating parts of machinery : en
  • US1930569A - Ice making apparatus : en
  • FR753461A - Truck for the transport of tracked vehicles : en fr
  • GB400223A - Improvements in and relating to load indicating and/or registering devices for cranes, haulage vehicles or systems, or other force applying devices : en
  • DE585902C - Pantile tiles : de en
  • DE586358C - Rail fastening on reinforced concrete sleepers using iron rib shims : de en
  • US1930655A - Bearing : en
  • US1930669A - Chuck adapter : en
  • CA336474A - Pneumatic despatch system : en fr
  • US1930480A - Pump and compressor : en
  • US1931292A - Windmill pullout : en
  • DE586147C - Disc ball : de en
  • DE586486C - Weather bar for double-leaf windows : de en
  • GB399970A - Improvements in and relating to carburetters for internal combustion engines : en
  • GB400094A - Apparatus for the separation of solid substances of different specific gravities, in particular the kernels and husks of oleiferous fruits : en
  • NL32149C - : en
  • US1931265A - Process of preparing arylaminoanthraquinone bodies : en
  • US1930571A - Denture brush : en
  • US1930973A - Table game : en
  • US1931223A - Potentiometer instrument : en
  • US1931237A - Elevator guide : en
  • DE586054C - Depositing device : de en
  • FR753582A - Improvements made to the shape of the tubes traversed or surrounded by fluids to increase the transmission of heat from their walls to said fluids : en fr
  • FR753650A - : fr
  • US1930914A - Grate bar : en
  • US1931134A - Bright annealing : en
  • US1930488A - Art of purifying petroleum sulphonic acids derived from the treatment of mineral oils with sulphuric acid : en
  • US1930586A - Lubricant retainer for axles and the like : en
  • US1931153A - Method of making frame rings : en
  • US1931374A - Sodium aluminate : en
  • DE585881C - Pressure medium brake in connection with an electromagnetic rail brake : de en
  • USD90867S - Design for a combined badiocabinet : en
  • US1931180A - Combined lamp and ash receptacle : en
  • DE586327C - Method and device for the production of molds for briquette extrusion presses : de en
  • FR753557A - Process for obtaining sulfo-cyanides from quaternary aromatic ammonium bases : en fr
  • FR753640A - Centrifugal coupler for electric motor : en fr
  • FR753691A - Needle Toggle Openers for Inverted Stitch Knitting Machines : en fr
  • DE586344C - Process for the production of locking washers with a fan-shaped flap rim : de en
  • DE586420C - Wing spinning or twisting machine : de en
  • FR753499A - Improvements to hydraulic capping machines : en fr
  • US1930536A - Oscillation generator : en
  • US1930656A - Shelf support : en
  • US1931405A - Apparatus for handling packed metal stock : en
  • ES131661A1 - Improvements in the construction of injectors and obturators for gas cooking appliances. : en es
  • CA336451A - Locomotive : en fr
  • US1930707A - Car dumper : en
  • US1931321A - Shelf bracket construction : en
  • US1930472A - Manufacture of cellulose derivatives : en
  • US1931186A - Shoe or hob nail : en
  • US1931229A - Vehicle wheel rim : en
  • US1931368A - Treatment of nitrocellulose dope : en
  • US1931465A - Conduit : en
  • USD90900S - Design for a doll : en
  • ES131660A1 - A mechanism for driving the window glass, especially the vehicle windows. : en es
  • US1931004A - Vanity case : en
  • US1931193A - Centrifugal separator : en
  • US1931345A - Timed electric toaster : en
  • DE586099C - Gas firing system with a compressed gas burner : de en
  • ES131696A1 - Improvements in the bases for cathodes covered with oxides. : en es
  • GB399893A - Improvements in heat-exchange apparatus for fluids applicable to the condensation of acetic anhydride vapour : en
  • GB400197A - Improvements in the preservation and storage of meat and meat products : en
  • US1930556A - Nose-guard pad for eyeglasses : en
  • US1930682A - Core forming device : en
  • US1930873A - Rubber refining machine : en
  • US1931087A - Saltcellar : en
  • US1931116A - Means for governing the speed of electric motors : en
  • US1930463A - Hardening of aluminum : en
  • US1930717A - Animal trap : en
  • DE586074C - Break-off iron to break off the lost head of a stereotype plate that is still in the mold : de en
  • US1930732A - Means for the elimination of distortion in telephone lines : en
  • US1931009A - Winding machine : en
  • US1931053A - Freezing tray : en
  • US1930584A - Belt drive conveyer : en
  • US1931428A - Making leather substitutes : en
  • US1931131A - Means and method of connecting and blending cigarettes : en
  • FR753597A - Carburetor comprising an adjustment device for the arrival of fuel : en fr
  • US1931244A - Machine for binding books : en
  • US1930582A - Apparatus for cutting glass sheets : en
  • US1930567A - Locking device for machine tool worktables : en
  • US1930615A - Self cleaning lug : en
  • US1930645A - Shelf support : en
  • DE586263C - Electric hot water device : de en
  • ES1919U - Coffee roaster with electric motor. (Machine-translation by Google Translate, not legally binding) : en es
  • GB399937A - Improved method of and means for controlling the temperature of steam leaving a steam superheater : en
  • GB399966A - Improvements in or relating to liquid flow meters : en
  • DE567790C - Plan with rows of finders : de en
  • FR753647A - Improvement in triode tube emitters : en fr
  • GB399981A - Improvements in or relating to punching and countersinking machines : en
  • DE586416C - Cylinder filling tool used for grinding inner cylinders : de en
  • US1931303A - Fly rod handle : en
  • US1931311A - Bonding restricted joint : en
  • DE586235C - Feed device for the briquetting material in briquette extrusion presses : de en
  • DE586458C - Spring drive for number switches in self-connecting telephone systems : de en
  • US1931094A - Reenforced spring assembly for upholstery : en
  • AU1124033A - Improvements in and connected with conduits as conductors of gases, steam, liquids and the like : en
  • US1930967A - Incubator : en
  • USD90882S - Design for a textile fabric or : en
  • DK47889C - Procedure for the production of magnesium fertilizers. : da en
  • CA336468A - Tire building method : en fr
  • IE12750L - Sound reproduction : en
  • GB399962A - Appliances for playing a parlour or table game : en
  • GB400116A - Machine sets consisting of a radial cylinder internal combustion engine and a driven machine : en
  • US1930704A - Cathode arrangement : en
  • US1930861A - Concentration evaporator : en
  • CA336434A - Vacuum tube assembly : en fr
  • US1930676A - Adjustable tie rod connection : en
  • US1930781A - Weed eradication : en
  • DE585874C - Pinhole polishing machine : de en
  • DE586246C - Process for the production of growth hormones or their esters : de en
  • DE586409C - Tear-off pack for photographic materials in roll form or for plate, sheet film or paper packs : de en
  • CA336377A - Locomotive smoke draft apparatus : en fr
  • GB400222A - Improvements in or relating to weather shields for motor-cycle pillion riders : en
  • DK47873C - Device by Weights. : da en
  • ES131700A1 - A method of manufacturing composite vitreous bodies. : en es
  • ES1606Y - Label with metallic fixative. : en es
  • FR753664A - New automatic load adjustment process for so-called accumulation electric stoves : en fr
  • GB399949A - Clamping device for apparatus for holding forms to be written in duplicate writing book-keeping systems : en
  • US1930890A - Revolving screen cotton cleaner and separator : en
  • US1931351A - Duplex envelope : en
  • US1930708A - Brake drum seal : en
  • US1931319A - Operating mechanism for switches : en
  • CA336391A - Dry yeast : en fr
  • DE573017C - Process for producing high quality cast iron : de en
  • FR753536A - Whisk router : en fr
  • GB400176A - Improvements appertaining to pistons for internal combustion engines : en
  • DE586273C - Cutting device for leather : de en
  • FR753637A - Apparatus for welding the bodies of tin cans : en fr
  • GB400042A - Device for replacing carbon paper by one or more ink-ribbons for the manufacture of copies with the typewriter : en
  • GB400159A - A process for preventing heating between frictional surfaces : en
  • FR753418A - Device for waving hair : en fr
  • FR753521A - Horse hoof protector : en fr
  • GB400099A - Improvement in painting brushes : en
  • CA336407A - Wall : en fr
  • DK47890C - Procedure for Making Potash. : da en
  • DE586056C - Process for the production of molded parts from synthetic resin : de en
  • AU922832A - Improvements in or relating to low temperature carbonisation or distillation of carbonaceous materials and to apparatus for use in connection therewith : en
  • DE586081C - Device for viewing a television picture by means of optical systems between the observer's eye and the light source : de en
  • US1930680A - Container : en
  • US1930883A - Process for the manufacture of fertilizers : en
  • US1930977A - Curry-comb : en
  • CA336501A - Cable support : en fr
  • DE586050C - Shotgun bullet for hunting rifles : de en
  • DE586305C - Bicycle freewheel hub in which the chain wheel is axially displaceable by the chain hoist for the purpose of coupling with the wheel hub : de en
  • DE586443C - Tooth cleaner with protruding back : de en
  • US1930564A - Heel gripper plate for shoes : en
  • GB400011A - Improvements in or relating to electric heating and cooking apparatus : en
  • GB400165A - Improvements in and relating to the production of inlaid veneers : en
  • ES1599Y - Spigot to regulate and obtain the passage of gas. : en es
  • GB400115A - Improvements in photophones : en
  • CA336433A - Glycol ether : en fr
  • GB399931A - Improvements in sound reproducing apparatus combined with an optical projection screen : en
  • US1930693A - Multiplex communication system : en
  • DE586167C - Casting mold with core ribs and adjustable intermediate pieces for die setting and line casting machines : de en
  • DE586275C - Centrifugal casting machine : de en
  • US1930496A - Temperature controller recorder including method and apparatus : en
  • US1930591A - Punching apparatus : en
  • US1930628A - Presser foot connection : en
  • US1930877A - Apparatus for the electrolytic manufacture of metals, and chiefly of magnesium : en
  • US1931043A - Electrical impedance device : en
  • US1931066A - Ventilated roof and similar structure : en
  • US1931178A - Doorcheck : en
  • ES1548Y - File with metal folding cover. : en es
  • DE586064C - Filter device : de en
  • DE586209C - Impeller for centrifugal pumps with open blade channels and cantilever blades : de en
  • US1930876A - Nitrogen containing compounds and process of preparing them : en
  • GB400639A - Improvements for handles for shaving brushes : en
  • FR753678A - Method and device for achieving perfect combustion of a liquid fuel : en fr
  • US1930939A - Soil covering and method of use : en
  • NL31018C - : en
  • DE586345C - Process for the production of backs for bristle brushes : de en
  • CA336503A - Mining method : en fr
  • DE586475C - Rubber-free varicose vein stocking with open heel made of knitted or knitted fabric : de en
  • GB400152A - Pantograph current collectors for electric railways and the like : en
  • US1931089A - Saltcellar : en
  • FR753524A - Thermal insulation devices : en fr
  • GB400143A - Improvements in or relating to the manufacture of sulphuric acid by the contact process : en
  • DE586335C - Process for the preparation of easily soluble salts of phenylquinoline carboxylic acids : de en
  • FR753644A - Improvements to the raceways of rotating devices : en fr
  • GB400080A - Improvements in or relating to filters for liquids : en
  • FR753625A - Improvements to devices for the pneumatic separation of materials of different densities : en fr
  • GB400169A - Improvements in or relating to the concentration of aliphatic acids : en
  • IE12497L - Sterilization of air in rooms and enclosed spaces : en
  • IE12526L - Syphons. : en
  • FR753567A - Method and device for drying all kinds of hard spools of spun textile materials : en fr
  • US1930735A - Terminal mounting for lighting fixtures : en
  • US1931176A - Cable socket applying tool and method : en
  • DE586157C - Adjustment device for machines for adjusting the heel seat of shoes : de en
  • US1930537A - Substation telephone circuit : en
  • FR753471A - Spinning and combing chain : en fr
  • GB399945A - Improvements relating to means for lubricating compressed air pipe lines : en
  • GB400190A - Improvements in or relating to cartons or containers of paper or the like : en
  • DE586324C - Whisker : de en
  • GB399976A - Improvements relating to flexible joints : en
  • DE586314C - Connection of sole and upper leather in shoes, especially opanks : de en
  • DE586489C - Load cell for measuring mechanical forces, in particular cutting forces in cutting machine tools : de en
  • ES1856U - Vessels or containers with voluntary filling dumps. (Machine-translation by Google Translate, not legally binding) : en es
  • US1930887A - Dental crown gauge : en
  • DE586288C - Method of making photographic sound recordings by means of electron beams : de en
  • ES131675A2 - A DISPLAYING DEVICE FOR CONTINUOUS FILMS, WITHOUT BEING PROJECTED : en es
  • US1930673A - Flowerpot holder : en
  • US1930874A - Wear plate for rubber heels : en
  • US1930944A - Measuring dispenser : en
  • US1931046A - Sensitometry : en
  • FR753411A - Illuminated plate usable as a code plate for motor vehicles and for signaling or advertising purposes : en fr
  • FR753421A - Improvements to remote control systems : en fr
  • FR753559A - Improvements in the treatment of cellulosic tissues : en fr
  • GB400091A - Improvements in or relating to cravats : en
  • ES131658A1 - A mechanism to cut the remnants of stretch threads in the looms of automatic change of taps. : en es
  • GB399958A - Improvements in collapsible fishing and like nets : en
  • US1930527A - Sugar-free confection and process of making the same : en
  • USD90877S - Design for a portable electric : en
  • FR753423A - Improvements to remote control systems : en fr
  • GB399939A - Improvements relating to magnetic clutches : en
  • GB399953A - Improvements in absorption refrigerating apparatus : en
  • US1931049A - Process of making dihydroxyfluoranes : en
  • US1931310A - Indicating device for switches : en
  • DE586392C - Cutting edge seal : de en
  • GB400053A - Improvements in or relating to absorption refrigerating apparatus : en
  • GB400118A - Apparatus for recording and reproducing sound records on films : en
  • GB400231A - Improvements in or relating to cooking stoves or the like : en
  • DE586423C - Process for the production of road building materials : de en
  • FR753529A - Keyboard mechanism for composing machines : en fr
  • GB400207A - Improvements in and relating to heating apparatus for fireplaces : en
  • GB400215A - Improvements in or relating to frequency selection means for use in high frequency electrical circuits : en
  • DE585776C - Manufacture of teeth on bevel gears and hyperbola gears with curved teeth : de en
  • DE586046C - Device for setting the grippers for the drive wheels of motor vehicles : de en
  • GB400107A - Improvements in and relating to dies for use in the manufacture of tiles for walls, fire places and the like : en
  • GB400178A - Device for the production of endless bands of gelatine, cellulose derivatives and the like : en
  • DE586112C - Process for removing bismuth from lead : de en
  • DE586202C - Adjustment lever, especially for agricultural machinery : de en
  • DE586233C - Device with beater drum for peeling and polishing all kinds of grains and legumes : de en
  • US1930517A - Remote control system : en
  • US1930784A - Current control : en
  • US1931293A - Brush container : en
  • US1931442A - Process for the production of nitrogen-hydrogen mixtures : en
  • ES131680A3 - Improvements in motor vehicles with four independent suspended wheels. : en es
  • CA336376A - Paper sheet fastening machine : en fr
  • US1931441A - Production of hydrocyanic acid : en
  • ES1923U - Zip closure. (Machine-translation by Google Translate, not legally binding) : en es
  • DE586374C - Two-part fitting for removable table legs : de en
  • DE585994C - Method and device for dumping by means of an excavator : de en
  • DE586120C - Rotary piston internal combustion engine : de en
  • DE586183C - Pendulum suspended storage device of a traveling grate : de en
  • ES131694A1 - Improvements in the apparatuses to apply floors to the covers of the pneumatic cameras. : en es
  • GB399946A - Improvements in or relating to apparatus for towing motor vehicles : en
  • ES1569Y - Folding chair. : en es
  • DE586123C - Switching and feed device on wheel shaping machines working with a shaping wheel : de en
  • DE586208C - Coloring device for color films : de en
  • US1930891A - Wire fabric : en
  • US1931440A - Wrapping machine : en
  • US1931127A - Fault responsive apparatus : en
  • ES1516Y - Bottle with crown capsule, with opener for the same, being articulated in the neck of the bottle. : en es
  • US1931268A - Refrigerating system : en
  • US1931381A - Production of titanium dioxide from titanium tetrachloride : en
  • US1931414A - Table : en
  • US1931192A - Nitrogen containing cyclic ketone and a process of preparing it : en
  • DE586034C - Kauschenoese, especially when tensioning aircraft : de en
  • DE586177C - Device for adjusting the light point height in lighting bodies by means of guides and grids, especially for electric light bulbs : de en
  • DE586376C - Push button control for elevators u. like : de en
  • GB400144A - Improvements in or relating to vehicle bodies : en
  • US1931115A - Accounting machine : en
  • US1931332A - Yarn sheet cutting mechanism : en
  • DE586065C - Process for the electrolytic production of white lead : de en
  • DE586282C - Process for achieving an artificial grain on the surface of synthetic rubber leather : de en
  • GB400208A - Improvements in mechanism for controlling the numbers in rotary numbering boxes for printing machines : en
  • US1931158A - Hydraulic turbine : en
  • DE586480C - Device for igniting fuel : de en
  • GB399932A - Improvements in devices for cleaning sparking plugs : en
  • DE569974C - Process for the production of compounds for the preparation of medical baths and packs : de en
  • CA336389A - Packing ring : en fr
  • CA336387A - Refrigerator : en fr
  • DE585942C - Process for the production of wire from aluminum alloys : de en
  • AU978332A - Improvements relating to automatic telephone and like selective systems : en
  • US1930906A - Sound translating device : en
  • US1931430A - Flexible apron loop drier : en
  • FR753434A - Turbo mixer : en fr
  • DE585928C - Double-walled insulated drinking cup : de en
  • DE586514C - Process for the preparation of compounds of caffeine with calcium and strontium rhodanide : de en
  • US1930563A - Electronic discharge tube : en
  • US1930832A - Method and device for surveying wells : en
  • US1931207A - Compressor : en
  • US1931267A - Mechanical rectifier : en
  • US1930590A - Water mixing valve : en
  • US1930932A - Resistance unit : en
  • US1930616A - Signaling system : en
  • US1931060A - Lubrication system : en
  • DE586110C - Soundproof construction : de en
  • DE586111C - Method for using a porous rubber, as it can be produced according to patent 551467, as a roof or floor covering : de en
  • DE586406C - Camera for audio recordings : de en
  • FR753451A - Improvements to vehicle heaters : en fr
  • GB400198A - Improvements in or relating to bed settees : en
  • ES1631Y - Furniture for the packaging and display of cigars. : en es
  • GB400087A - Improvements in or relating to night arks or brooders for poultry : en
  • US1931133A - Perforating machine : en
  • DE585734C - Method of manufacturing the blades of screw fans : de en
  • ES131678A1 - A process for the preparation of new azo dyes insoluble in water. : en es
  • FR753696A - Improvements to inclined plane devices intended for handling barrels and circular bodies : en fr
  • US1930822A - Barrel crozing machine : en
  • US1930864A - Automatic firearm : en
  • ES1615Y - Bicycle cover, made of fabrics. : en es
  • FR753500A - Lock washer : en fr
  • GB400012A - Improvements in the suspension of vehicles : en
  • DE586025C - Method and device for testing gas glow light bodies for resistance to vibrations caused by explosions : de en
  • DE586128C - Pasteurizer for fruit juices : de en
  • FR753682A - Natural color cinematography process : en fr
  • DE586069C - Feed water storage system for locomotives : de en
  • ES131653A1 - New sewing system for cutting the skin of the footwear, with the floor or sole thereof. : en es
  • AU960432A - Improvements in and relating to extension tables : en
  • USD90879S - Design for a lounge chair : en
  • FR753481A - Fast stranding machine : en fr
  • FR753539A - Rontgen ray dosimeter based on the principle of ionization and comprising an irradiation tube : en fr
  • CA336431A - Pressing machine work holder : en fr
  • DE586343C - Side pipe for storm lanterns : de en
  • DE586508C - Expansion switch : de en
  • DE586271C - Electric two-motor drive for flat knitting machines with periodically changing speed : de en
  • US1930771A - Automatic electrical humidifier : en
  • US1930544A - Sound reproducing device for moving pictures : en
  • GB399935A - Improvements in or relating to sandals and like footwear : en
  • US1930667A - Piston ring tool : en
  • US1931081A - Display device : en
  • US1931093A - Ash receiver for automobiles : en
  • DE586077C - Ice bin : de en
  • DE586405C - Roll film camera with a device for locking the camera housing when opening the cassette : de en
  • DE586415C - Machine for grinding double-edged safety razor blades with an endless conveyor belt : de en
  • US1930677A - Multiple galvanometer : en
  • US1930809A - Padlock : en
  • US1931199A - Device for locking the platen of typewriters : en
  • US1930812A - Oil burner : en
  • DE586154C - Goods holder with guide strips for picking up stitches : de en
  • DE586433C - Multi-system pipes with more than two systems and built-in coupling elements : de en
  • US1930733A - Web roll controlling mechanism : en
  • US1930739A - Weather window for automobiles : en
  • DE580765C - Matrix setting and line casting machine, in which the matrices hang with their main hook on wires or similar guides and are provided with side hooks of different heights on their side opposite the main hook : de en
  • US1930798A - Printing machine : en
  • US1931010A - Instruction apparatus for stringed musical instruments : en
  • FR753463A - New folding metal trestle : en fr
  • GB400082A - Improvements in or relating to fuel injection nozzles for internal combustion engines : en
  • US1930640A - Hydraulic gripper : en
  • US1931338A - Oscillator-modulator circuit : en
  • DE586417C - Device for processing, in particular for grinding and polishing Achslagerfuehrungsbacken on locomotive frames o. : de en
  • DK47882C - Devices for vertical gas retorts and their coke discharge chambers. : da en
  • GB399960A - Improvements in and relating to distributors for lime, manure, and the like : en
  • GB400132A - Improvements in and relating to electrical weft feelers for looms : en
  • GB400212A - Improvements in or relating to form grinding : en
  • IE12767L - Internal combustion engines. : en
  • DE584763C - Process for the processing of the products that arise when the coal is liquefied by hydrogenation : de en
  • DE586295C - Bearing with an oil container sealed by a washer, especially for the smallest electric motors : de en
  • US1930723A - Film movement mechanism : en
  • US1930779A - Brake : en
  • FR753639A - Pressure regulator for work with compressed air : en fr
  • GB399944A - Improvements in or relating to hand bags : en
  • GB400920A - Improvements in the manufacture and production of water-soluble azo dystuffs : en
  • FR753654A - General meteorological apparatus, its components, its manufacturing and adjustment means : en fr
  • DE586363C - Electric fluid switch : de en
  • GB399967A - Improvements in or relating to the manufacture of high ohmic resistances : en
  • ES131569A3 - A procedure for obtaining stereoscopic views by the anaglyph method. : en es
  • GB400013A - Improvements in and relating to papermaking machines : en
  • GB400077A - Improvements in or relating to filtering devices : en
  • USD90878S - Design for a chair : en
  • GB399969A - Improvements in or relating to tins, canisters and like metal containers : en
  • DE586199C - Device for encryption and decryption : de en
  • DE586309C - Diving equipment : de en
  • DE586133C - Photographic enlarger with automatic focusing : de en
  • DE586322C - Self-loading rifle with exchangeable barrel : de en
  • DE586356C - Typesetting binder : de en
  • DE586424C - Firing process for ceramic pressed material and ceramic masses : de en
  • DK47879C - Door closer with piston buffer. : da en
  • DE586047C - Motorbike with trailer : de en
  • US1930598A - Drill supporting column : en
  • AU1034532A - Improvements in and relating to aircraft having freely rotative wings : en
  • CA10116S - Glass jar : en
  • GB399997A - Improvements relating to the construction of floors and ceilings : en
  • GB400049A - Partition walls : en
  • GB400229A - Improvements in or relating to two-stroke sleeve-valve internal combustion engines of the liquid fuel injection compression ignition type : en
  • US1930862A - Snowplow : en
  • US1931458A - Packing strip : en
  • GB399975A - Improvements in coke ovens : en
  • US1931121A - Lubricating apparatus : en
  • US1931357A - Combined baby pants and diaper : en
  • DE565510C - Process for the production of compounds for the preparation of medical baths and packs : de en
  • FR753728A - Process for desizing and purifying textile materials of all kinds : en fr
  • US1931384A - Computing machine : en
  • GB399964A - Improvements in or relating to focussing means for photographic cameras and projectors : en
  • DE586190C - Lidded box, in particular for holding cleaning agents : de en
  • DE586073C - Sponge rubber stamping device : de en
  • FR753466A - Shoe protector : en fr
  • GB400108A - Improvements in fastening means : en
  • US1930498A - Optical system for motion picture photography : en
  • US1930911A - Electric regulator : en
  • GB400017A - Improvements in or relating to the suspension of vehicles : en
  • US1931263A - Adjustable damper : en
  • US1930608A - Air lift transfer device : en
  • US1930770A - Metal boat construction : en
  • ES130794A1 - A method for the sanitation of soils and premises. : en es
  • GB400181A - Improvements relating to dry gas meters : en
  • GB399921A - Improvements in lamp control for vehicles : en
  • US1930614A - Gas fuel economizer for burners : en
  • DE586151C - Electric relay with timer : de en
  • DK47886C - Method by which wool fibers can be made waterproof. : da en
  • US1930654A - Piston construction : en
  • US1931203A - Insulating support for electrical conductors : en
  • US1931257A - Compound of the abietene family : en
  • US1931445A - Method of and means for reducing the effects of undesired oscillations : en
  • US1931333A - Method of making channel strips : en
  • US1931447A - Sewing machine : en
  • FR753629A - Quick-release jaw clamping device in joints and wire fixings : en fr
  • ES131657A1 - Improvements in heavy oil carburetors for internal combustion engines. : en es
  • DE586396C - Machine for soldering the bottom or lid seams on tin cans : de en
  • ES131652A1 - Universal machine for the preparation of food for large hotel kitchens, butchers, bakeries and similar. : en es
  • FR753439A - Spring-loaded bolt, acting backwards, with indi vidual perforating knife, and serving as a closing piece for series of perforating knives controlled automatically : en fr
  • NL32147C - : en
  • US1930559A - Sealing device : en
  • US1931388A - Pie cutter : en
  • DE586037C - Incubator with stacked egg trays and an air circulation generated by a fan : de en
  • ES131638A1 - NEW SYSTEM OF ROTATING AND REMOVABLE JAWS FOR MISCELLANEOUS FIXING SCREWS : en es
  • DE586268C - Circular knitting machine for reversible cladding : de en
  • GB400242A - Improvements in or relating to apparatus for making and spraying solutions : en
  • FR753444A - Improvements to roller blinds : en fr
  • GB399908A - Improved means for preventing damage from back firing of motor car engines and for mixing the charge supply thereto : en
  • US1930666A - Method of and apparatus for coating : en
  • DE586066C - Process for the production of cleaning, emulsifying and wetting agents : de en
  • DE586301C - Device for repeating advertising signs and signals : de en
  • DE586250C - Device to protect against burning for the reversing ends of heating tube superheaters protruding into the combustion chamber of locomotive boilers or into the reversing chamber of ship boilers : de en
  • ES131639A3 - Manufacturing process of heat and sound insulating layers. : en es
  • FR753583A - Apparatus for the examination of flour : en fr
  • FR753670A - Method of operation of recuperators : en fr
  • GB400145A - Improvements in devices for transferring articles from a continuously moving conveyor band to another conveyor band : en
  • US1931469A - Caster : en
  • US1931224A - Visible date scheduling appliance : en
  • US1931377A - Fire extinguisher : en
  • US1931255A - Welding machine control : en
  • DE586138C - Differential gear with locking device for motor vehicles : de en
  • DE586432C - Device for rectifying alternating currents : de en
  • GB399911A - Improvements in two-stroke internal combustion engines : en
  • FR753675A - Fast curing cement : en fr
  • GB400195A - Improvements in methods of and apparatus for the manufacture of sliding clasp fasteners : en
  • FR753503A - Window curtain : en fr
  • US1930580A - Exhauster for alpha dry pipe valve system : en
  • US1930681A - Manufacture of benzanthrone : en
  • GB400104A - Improvements in microscopes : en
  • US1930712A - Dentist's saliva ejector : en
  • US1930764A - Pneumatic tire and method of making same : en
  • FR753478A - Radio mounting : en fr
  • FR753579A - : fr
  • DE586172C - Two-way transmission system with echo and feedback barriers, the sensitivity of which is determined automatically by the level of the interference level : de en
  • DE586510C - Hydraulic clamping mechanism for thick-walled pipes : de en
  • US1931329A - Market basket : en
  • GB400009A - Improvements in or relating to solid carbonaceous fuels : en
  • DK47880C - Lantern for Bicycles and the like. : da en
  • FR753663A - Improvements made to the use of reinforced concrete, in particular for the establishment of floors and stairs of buildings and industrial premises : en fr
  • FR753660A - Improvement in flat knitting looms by hand or motor : en fr
  • US1930997A - Musical time indicator : en
  • US1931105A - Axle and method of making the same : en
  • US1931254A - Electronic tube : en
  • US1931298A - Hood catch : en
  • FR753570A - Toy : en fr
  • FR753662A - Water dress : en fr
  • GB400247A - Improvements in or relating to electrolytic cells : en
  • DE566770C - Process for the production of hollow bodies from cellulose : de en
  • DE586057C - Ball bearing for support rollers : de en
  • DE586262C - Moving coil measuring device with interchangeable series and secondary resistors in the form of two buttons arranged in the instrument : de en
  • US1931041A - Fluid pressure tool : en
  • US1931451A - Toaster : en
  • FR753413A - Connector system for electrical equipment : en fr
  • GB399994A - Improvements in or relating to machines for testing wires and the like by bending : en
  • US1930570A - Ice machine : en
  • US1931119A - Kier : en
  • GB400162A - Dephenolisation : en
  • FR753681A - Improvements to electric hoists : en fr
  • US1930605A - Copying device : en
  • US1930840A - Neon sign hook base : en
  • US1931077A - 1-amino-5-methoxy-benzo-thiazole : en
  • US1931336A - Glassware forming machine : en
  • CA336461A - Waxy substance separation : en fr
  • US1930857A - Method of making piston ring joints : en
  • US1931436A - Electrical precipitating apparatus : en
  • DE586452C - Switching arrangement for DC motors with driving load, especially in electric vehicles : de en
  • FR753687A - Remote indication repeater : en fr
  • GB400073A - A new or improved switch for electric irons and other electric hand tools : en
  • DE586496C - Device for increasing the transverse drive of bodies moving relative to the surrounding medium such as aircraft wings and the like. like : de en
  • US1931467A - Radiator : en
  • ES1924U - Wooden boxes for fruit packaging (Machine-translation by Google Translate, not legally binding) : en es
  • GB399916A - Manufacture of azo-dyestuffs : en
  • FR753501A - Advanced devices for operating and controlling the grates of hearths, retorts and others : en fr
  • GB399910A - Improvements in drawer and shell boxes : en
  • DE585826C - Paper cigar holder with holding device for the cigar : de en
  • DE586103C - Adjustable jacquard card for flat knitting machines with swiveling pattern bars : de en
  • DK47887C - Process for the Extraction of Easily Soluble Derivatives of Pyridine Derivatives. : da en
  • FR753479A - Folding and adjustable utensil for hanging out laundry : en fr
  • FR753531A - Improvements to packaging boxes : en fr
  • GB400147A - Improvements in or relating to a method and apparatus for the manufacture of rubber strips : en
  • US1931059A - Purification of aryl esters of phosphoric acid : en
  • US1931369A - Label delivering machine : en
  • DE586129C - Grinder for making wood pulp : de en
  • DE586281C - Device for regulating the fuel supply to internal combustion engines for driving sawing machines : de en
  • GB400092A - Improvements in or relating to diaphragm valves : en
  • GB400592A - Improvements relating to processes involving intimate contact between a gas and a liquid : en
  • AU980532A - Absorption type refrigerating apparatus : en
  • GB399867A - Improvements in or relating to electrical measuring instruments : en
  • GB400129A - Improvements relating to the cooking of canned goods : en
  • US1930952A - Cotton treatment method and apparatus : en
  • US1930535A - Mechanical brake equalizer : en
  • US1930726A - Crate corner construction : en
  • US1930752A - Chlorination of p-xylidine : en
  • DE586317C - Press for sticking soles on footwear : de en
  • FR753593A - Adjustable capacitor for high frequency jobs : en fr
  • ES131663A1 - Improvements in the manufacture of toothpastes. : en es
  • GB400194A - Improvements in automatic shuttle-changing mechanism for looms with several shuttles : en
  • US1930929A - Hypodermic implement : en
  • US1930961A - Motor vehicle brake operating mechanism : en
  • USD90888S - Design for a vanity dresser : en
  • AU1036432A - Bag sewing needle : en
  • CA336437A - Governor control mechanism : en fr
  • DE586169C - Pump for letter casting machines with adjustable piston attached to the piston rod and regulating the inlet valve : de en
  • CA336487A - Container cap : en fr
  • ES1563Y - Improved plug washer. : en es
  • CA336475A - Mould for welding rails : en fr
  • FR753402A - water purification : en fr
  • FR753417A - Method and apparatus for the straightening of the hair : en fr
  • GB400058A - Improvements relating to indirectly heated cathodes for electron discharge devices : en
  • AU909632A - Improvements in crushing and amalgamating mills forthe treatment of gold andother ores : en
  • US1931082A - Regenerative radioreceiver : en
  • US1930949A - Bearing trimmer table : en
  • FR753511A - Process for the preparation of sulfuric esters of leuco-derived vat dyes : en fr
  • FR753588A - Starting mechanism : en fr
  • GB399927A - Improvements in cardboard or paper cartons or like containers : en
  • CA336414A - Valve : en fr
  • US1931317A - Roller clutch : en
  • US1931408A - Washing of flue gases from combustion furnaces and the like : en
  • US1931427A - Dispensing apparatus : en
  • CA336459A - Hydrogen recovery : en fr
  • US1930523A - Amplifying system : en
  • US1931007A - Drum or container for oil or other liquids : en
  • US1931225A - Ignition system : en
  • US1931300A - Apparatus for mounting tile : en
  • DE586318C - Sole tearing machine : de en
  • CA336467A - Venting tire rim : en fr
  • FR753587A - Enclosure intended to protect pipe conduits or cable ducts against influences from the installation location which may cause corrosion : en fr
  • US1931279A - Pen : en
  • US1931356A - Gas engine temperature control : en
  • CA336378A - Locomotive smoke draft apparatus : en fr
  • DE586041C - Feed device for bolts, nails, rivets, etc. like : de en
  • US1930519A - Dbt ffisctifsbjk : en
  • US1930560A - Seal : en
  • US1931084A - Mold for articles of galvanoplastic material : en
  • US1930483A - Vehicle body construction : en
  • US1931083A - Ignition device fob oil burning : en
  • DE586352C - Process for the preparation of water-soluble alkyl mercury mercapto compounds : de en
  • DE587354C - Self-stable flying boat : de en
  • US1931206A - Fuse plug : en
  • US1930710A - Operating mechanism : en
  • US1931294A - Bottle closure assembling machine : en
  • US1931355A - Process of treating furs : en
  • US1930663A - Gas stove : en
  • US1930800A - Ironing machine : en
  • US1930905A - Piezo-electric apparatus : en
  • US1931195A - Sheet pinning machine : en
  • US1931366A - Ice-cream lift : en
  • US1930624A - Automatic gas and oil shut-off valve : en
  • US1930716A - Catalytic oxidations of organic compounds : en
  • DE585945C - Washing tub : de en
  • DE586032C - High pressure water centrifugal machine : de en
  • DE586097C - Electromagnetic relay with low-current contacts designed as spring contacts and high-voltage contacts designed as mercury conduit tubes : de en
  • FR753584A - Spring-loaded winding clamp for permanent hair waving : en fr
  • CA336416A - Engine or gear box suspension : en fr
  • DE586080C - Railway signaling system that works with tracks : de en
  • GB399885A - Improvements in epicyclic gears : en
  • US1931130A - Machine for loading bags and the like : en
  • US1930849A - Railway draft gear : en
  • GB400587A - An improved process for making sulphonated oleic acids : en
  • US1930844A - Bookholder : en
  • AU1041932A - An improved cement and process for making same : en
  • FR753432A - Saw for felling and chopping trees : en fr
  • FR753437A - Reinforced pumice concrete sub-roofs : en fr
  • US1931164A - Power driven unit for fluid pressure systems : en
  • US1931457A - Clock casing construction : en
  • USD90890S - Design fob a combination magazine : en
  • FR753522A - Reinforced concrete column: new arrangement of reinforcements : en fr
  • FR753632A - Electricity generator, more particularly intended for the use of solar energy : en fr
  • GB400102A - Improvements in and relating to the manufacture of pressure welded containers for withstanding relatively high internal and external pressure : en
  • GB400014A - Electric selective receiving apparatus responsive to code signals : en
  • FR753528A - Bogie : en fr
  • FR753459A - Method for controlling the brightness of so-called braun tube cathode ray oscillographs : en fr
  • FR753635A - : fr
  • US1931282A - Automatic steering device : en
  • DE586342C - Carbide lamp for vehicles : de en
  • DE586478C - Process for hardening glass panes or glass plates : de en
  • DE586502C - Ski binding : de en
  • USD90901S - Design for a shoe : en
  • CA336379A - Electric discharge reaction effecting means : en fr
  • FR753526A - Sheaf loading device for thresher or other similar applications : en fr
  • FR753543A - Single cable or single chain dredge spoon, with adjustable opening movement : en fr
  • GB400224A - Pencil sharpener : en
  • ES130595A1 - A new system of making loose-leaf booklets bound together and folded over one another. : en es
  • US1931196A - Vat dyestuffs : en
  • ES131703A1 - Improvements in motor vehicles with independent suspension wheels. : en es
  • GB400010A - Improvements in and connected with ingot moulds : en
  • US1931473A - Pump lubricating system : en
  • DE586476C - Equipment on shoe floors and insoles to support the heel bone : de en
  • GB399898A - A new composition for destroying vermin : en
  • GB399874A - A process for the production of shading plates more especially for use in map-making : en
  • US1930460A - Stroboscopic apparatus : en
  • US1931028A - Piezo-electric relay : en
  • US1931227A - Ventilating system : en
  • CA336466A - Cotton cord processing : en fr
  • US1930711A - Clutch mechanism : en
  • US1931468A - Punching machine : en
  • GB400177A - Improvements in or relating to the manufacture of coverings, suitable for floors, from rubber, linoleum and other substances : en
  • GB400188A - Improvements in plastering machines : en
  • US1930526A - Process and apparatus for drying chlorine : en
  • US1931327A - Chuck : en
  • USD90868S - Design for a cover for boxes : en
  • DE586188C - Collapsible card protection cover : de en
  • FR753619A - Advanced method of hot air drying of yarns and fabrics and dryer chamber to achieve it : en fr
  • FR753608A - Method and installation for the treatment of household waste : en fr
  • US1930533A - Internal combustion engine : en
  • US1930623A - Feed grinder : en
  • US1930778A - Vacuum clothes brush : en
  • DE586503C - Trickle drum with I-shaped internals : de en
  • FR753652A - Locking device for nuts : en fr
  • GB399658A - Improvements in cones for loud speakers : en
  • GB400230A - Improvements in or relating to the combustion chambers of internal combustion engines of the liquid fuel injection compression ignition type : en
  • US1930646A - Method of impregnating porous materials : en
  • US1930968A - Sectional pouch screw : en
  • US1930987A - Method and apparatus for testing the productivity of formations encountered in wells : en
  • US1931162A - Method of making tubular articles : en
  • US1931238A - Electrical switch : en
  • DE586457C - Device for directed sound recording : de en
  • ES131666A1 - PROCEDURE FOR THE MANUFACTURE OF PRINT PAPER : en es
  • US1931402A - Storage building : en
  • US1931140A - Memorandum pad : en
  • US1930636A - Locomotive reverse gear : en
  • US1930815A - Mold mechanism for casting machines : en
  • DE586205C - Method and device for removing treatment fluids of all kinds, in particular bleaching fluid, from fiber masses, in particular cellulose, rotating at variable speed : de en
  • DE586383C - Process for the production of artificial leather : de en
  • FR753698A - Foundry process and product for its application : en fr
  • US1931363A - Grinding wheel : en
  • US1931415A - Arch support : en
  • USD90881S - Design fob a chandelier : en
  • FR753602A - Improvements to electric starting devices for internal combustion engines : en fr
  • FR753666A - transportable and expandable accessory defense element : en fr
  • GB400024A - Manufacture of disazo-dyestuffs insoluble in water : en
  • US1931150A - Sand conditioner : en
  • ES131674A1 - Improvements in the manufacture of electronic tubes or valves with cathode, anode and four interposed grid electrodes. : en es
  • FR753436A - New decorative product and its applications : en fr
  • FR753530A - Improvements relating to safety razors : en fr
  • GB399986A - Improvements in surgical bandages : en
  • DE586135C - Photographic camera with tape-shaped layer carrier and movable grid as well as a cutting device for separating the exposed sections : de en
  • FR753485A - New type of letters and signs for luminous writing and other applications : en fr
  • GB400055A - Process for producing a green covering of porous material for the top covering of playgrounds : en
  • FR753600A - Enhancements to pin sockets : en fr
  • IE12616L - Bathroom cabinets : en
  • FR753422A - Improvements to remote control systems : en fr
  • FR753473A - Burner with heating device for liquid fuels : en fr
  • GB400124A - Improvements in piston rings : en
  • DE586238C - Vibrating screens made of wire mesh for vibrators : de en
  • DE586296C - Process for the lubrication of metal parts with liquid lubricants of weak cohesion : de en
  • DE586328C - Device for feeding the pressed material for briquette extrusion : de en
  • DE586391C - Method for carrying out a cycle, in particular for gas turbines : de en
  • FR753642A - Sealing device for pistons, plunging heads and the like : en fr
  • FR753643A - Electric switch : en fr
  • US1930542A - Method of preparing fertilizer : en
  • US1930647A - Harvesting machine : en
  • US1931057A - Refining phenols : en
  • US1931036A - Radio antenna supporting and accessory structure : en
  • DE586107C - Escalator : de en
  • FR753657A - Improvements to pot turbines for artificial silk spinning : en fr
  • GB400065A - Adaptable casement and fanlight hinge : en
  • DE585783C - Foldable and removable universal mount with depth spreading device stored on a handcart : de en
  • USD90880S - Design fob a multiple hair drier or : en
  • FR753563A - Weighted plastic playing ball and manufacturing process : en fr
  • DE586495C - Spring links for changeable balloon covers : de en
  • ES131701A1 - Improvements in shock absorbing devices. : en es
  • US1931230A - Fire extinguishing apparatus : en
  • US1930516A - Bucket spinning process : en
  • US1931067A - Typewriting machine : en
  • DE586115C - Testing machine for determining the water content of sand and the like like : de en
  • DE586175C - Arrangement to improve the air gap cooling of electrical machines with open or semi-closed slots : de en
  • FR753519A - Improvements in pencil leads : en fr
  • GB400128A - Apparatus for the counting of train axles : en
  • FR753566A - Safety hooks for shutters, window frames, apartment and car doors : en fr
  • DE586372C - Catheter lubricator : de en
  • DE586460C - Directly readable radio compass : de en
  • US1930466A - Cutter chain for mining machines : en
  • US1930630A - Railway car truck spring : en
  • US1930672A - Electrical circuit for radioreceivers : en
  • FR753512A - Date cream : en fr
  • GB399925A - A new or improved windscreen for motor vehicles : en
  • DE586321C - Sighting device for firearms for shooting at moving targets : de en
  • US1930508A - Engine cooling system : en
  • US1930651A - Cylinder-knob doorlock : en
  • DE586299C - Edge guide for book stitching machines : de en
  • GB400163A - Improvements in or relating to methods of generating high pressure steam : en
  • FR753564A - Fast propelling unsinkable canoe system : en fr
  • GB400205A - Improvements in or relating to electrical indicating apparatus : en
  • DE586247C - Process for the production of basic esters of fatty acids : de en
  • DE586490C - Process and device for the electrolytic production of metallic strips : de en
  • US1930901A - Manually releasable locking means for fuel control means : en
  • US1930992A - Disappearing stairway : en
  • DE586474C - Self-transmission for warp knitting machines or the like. : de en
  • DE587005C - Protective coating for bearings : de en
  • US1931228A - Optical apparatus for the examination of goffered films : en
  • DE586347C - Stapling device in which the feeder spring is concealed and protected under the staple guide track : de en
  • FR753480A - Process for lightening plastic parts of any kind : en fr
  • FR753546A - Improvement in tincture basins : en fr
  • DE574841C - Process for the preparation of ester-like high-molecular conversion products of casein : de en
  • US1930897A - Tuyere : en
  • US1931071A - Carrier system : en
  • US1931136A - Steam condenser and water preheater : en
  • US1930661A - Rope : en
  • USD90874S - Design fob a clock face : en
  • DE586201C - Collection device for potato harvesters : de en
  • DE586362C - Self-connection telephone set for rough operations : de en
  • DE586091C - Three-pole rotary switch with multiple breaks on each pole : de en
  • DE586197C - Apparatus for the production of sound film copies by optical means : de en
  • US1931462A - Lighter burner : en
  • US1931453A - Conveying mechanism : en
  • US1930541A - Photocell and circuit : en
  • US1930868A - Transmitting system : en
  • US1931301A - Stocking insert feeding apparatus : en
  • FR753697A - Device for measuring attenuations more particularly in the form of portable devices : en fr
  • GB400917A - Improvements in or relating to apparatus for mixing solids with liquids : en
  • US1930679A - Pivotal coupler connection : en
  • US1931464A - Thermostat : en
  • AU961532A - Improvements inthe destructive hydrogenation of carbonaceous materials : en
  • CA336402A - Tamping machine : en fr
  • US1930810A - Guard for skate runners : en
  • US1931412A - Card index system and cards therefor : en
  • CA336435A - Gas burner : en fr
  • US1931419A - Hot water heating system : en
  • US1930974A - Process of and apparatus for treating hydrocarbon oils : en
  • US1930998A - Awning : en
  • US1931360A - Pocket knife : en
  • AU954232A - Improvements relating to centrifugal pumps : en
  • CA336477A - Journal bearing : en fr
  • DE586421C - Device for winding up a supply of yarn : de en
  • DE586444C - Solid nitrocellulose fuel : de en
  • DE586459C - Collector breaker for stepping mechanisms in telecommunication systems : de en
  • US1931466A - Arc welding electrode : en
  • DE586082C - Broadcast distribution system : de en
  • GB400137A - Improvements in or relating to display devices : en
  • US1931103A - Trimming attachment : en
  • US1931299A - Gaseous conduction apparatus : en
  • CA336494A - Railway signalling system : en fr
  • GB400213A - Improvements in and relating to the housing and ignition of flares, and more particularly flares used on aircraft : en
  • CA336484A - Pump unit : en fr
  • US1930555A - Lock for alpha garment fastener : en
  • US1930916A - Confection mold : en
  • US1931079A - Lip stick : en
  • US1930908A - Tuyere block : en
  • US1930757A - Loud speaker : en
  • US1931226A - Rosin composition : en
  • DE586320C - Device for the production of lace-up belts, in particular from celluloid : de en
  • ES1557Y - Typewriters. : en es
  • GB399912A - Improvements in or relating to devices for starting races : en
  • DE586049C - Device for internal grinding of cylindrical hollow bodies that can be attached to machine tools : de en
  • DE586470C - Loading device for locomotives : de en
  • DE586492C - Method and device for multiple processing of cardboard : de en
  • FR753406A - Further training in the manufacture of polishing and shining discs : en fr
  • CA336428A - Drying plant : en fr
  • US1930943A - Clutch control : en
  • US1931117A - Transport device for tractors : en
  • DE586203C - Process for preserving canned food by means of electric current : de en
  • FR753540A - Acoustic process allowing precise adjustment of the running speed of sound reproduction devices : en fr
  • FR753595A - Repeating electric detonator to prevent burglaries and protect traders from armed robbery : en fr
  • US1930746A - Fire-finisher : en
  • US1930602A - Feed-water preheating means : en
  • US1931122A - Lubricating apparatus : en
  • US1931239A - Process of producing artificial silk : en
  • USD90872S - Design for an advertising novelty : en
  • AU1167233A - Improvements relating tothe stringing of tennis and like racquets : en
  • CA336413A - Hydrocarbon gas processing by heat : en fr
  • DE586204C - Decoration stand : de en
  • DE586473C - Circular knitting machine with two needle cylinders : de en
  • DE586227C - Photoelectric, red-sensitive cell, the cathode of which consists of an approximately monomolecular, practically invisible thin skin of photoelectric substance on a metal layer : de en
  • US1930699A - Brake : en
  • US1931099A - Regenerative repeater : en
  • FR753468A - Method for receiving television with cathode ray tubes : en fr
  • US1930578A - Electrolytic condenser : en
  • US1931251A - Torsion-spring for clocks, watches, etc. : en
  • US1931339A - Multiple hair drying apparatus : en
  • DE585938C - Manufacture of silica : de en
  • DE586100C - Mesh wheel for circular knitting machines : de en
  • DE586340C - Slot bunker for drainage : de en
  • DE586442C - Process for the production of porous refractory articles : de en
  • CA336456A - Electrical system for engines : en fr
  • CA336465A - Temperature controlling device : en fr
  • USD90875S - Design for a bicycle frame or the : en
  • DE586369C - Firing for steam boilers or the like heated with liquid or dusty fuel. : de en
  • GB400068A - Luminous paints, moulded articles, coatings or lacquers : en
  • DE586438C - Gloss mill for bronze colors with a lying cylindrical drum : de en
  • FR753527A - Temperature regulator with bypass : en fr
  • US1930882A - Service attachment for beds : en
  • US1931358A - Lettering device : en
  • US1931400A - Adjustable connecter : en
  • US1931280A - Mechanism for collapsing necks of paper bags : en
  • US1931474A - Measuring and controlling apparatus : en
  • FR753465A - Vinyl acetylene derivatives and their preparation : en fr
  • GB400158A - Improvements relating to electric insulating material : en
  • GB399923A - Improvements in or relating to address-printing machines : en
  • DE586079C - Reinforcement for road surfaces : de en
  • DE586323C - Cartridge carrier for self-operated firearms : de en
  • DE582381C - Device for tearing open old bedding : de en
  • GB399995A - Improvements relating to tubular heat interchanging apparatus : en
  • US1931259A - Carburetor : en
  • GB400211A - Improvements in or relating to bag sewing apparatus : en
  • SE78625C1 - : sv
  • US1931386A - Fluid pressure regulator : en
  • US1930938A - Window bracket : en
  • US1931362A - Means for cutting sheets : en
  • US1931435A - Bottle capping machine : en
  • DE586310C - Floats, especially for fishing nets and life belts : de en
  • FR753552A - Outgoing sole for bakery ovens : en fr
  • US1930750A - Greenhouse construction : en
  • DE586253C - Method for labeling flat printing foils : de en
  • FR753649A - Improvements to liquid dispensers : en fr
  • US1931305A - Motor attachment : en
  • US1931372A - Display case for cakes and crackers : en
  • US1931389A - End thrust bearing for spindles : en
  • US1930546A - Float gauge : en
  • DE586118C - Lure and destruction ampoule for robbery : de en
  • DE586367C - Capacitor electrode for high voltage, high frequency treatment : de en
  • US1931323A - Refrigerating apparatus : en
  • US1930609A - Signaling system : en
  • DE586338C - Compensation for copper-nickel alloys : de en
  • US1930820A - Card display apparatus : en
  • US1931050A - Bearing construction : en
  • US1930698A - Tube-reducing mill : en
  • US1930500A - Apparatus for dispensing soap solutions : en
  • US1931456A - Thread-case for sewing machines : en
  • US1930577A - Loud speaker mounting : en
  • US1930909A - Marine underfeed stoker : en
  • FR753498A - Jewel ornament for the ear : en fr
  • GB399887A - Means for mounting members on each other about intersecting axes, so as to permit of their independent angular adjustment : en
  • DE586226C - Dismountable coil body with prismatic coil carrier for electrical coils, which is composed of individual parts and is inherently durable : de en
  • DK47885C - Procedure for the manufacture of peat or peat products. : da en
  • DE586186C - Wraps made from freshly spun artificial silk : de en
  • IE12311L - Safety gear for window cleaners : en
  • GB399933A - Closures for bottled or canned preserves and other comestibles : en
  • FR753699A - Improvements to lifting devices, such as cranes for large loads : en fr
  • DE586098C - Device for monitoring the temperature of ovens : de en
  • US1930685A - Door operator : en
  • FR753685A - Improvements to lenticular film manufacturing processes : en fr
  • GB399881A - Improvements in control equipments for electric locomotives : en
  • DE586087C - Altitude measuring device for aircraft : de en
  • DE586377C - Metal weather strip sloping outwards to be attached to the lower leg of the frame of a window : de en
  • DE586231C - Self-igniting injection engine : de en
  • US1930796A - High speed universal head for milling machines : en
  • DE586244C - Production of solutions of beryllium fluoride from beryllium-alkali double fluorides : de en
  • DE586142C - Device for taking measurements for shoemakers : de en
  • DE586148C - Switching device operated by the lock slope to control the electric drive motors of lock gates : de en
  • GB400196A - Improved means for operating and controlling the grates of furnaces, distilling retorts and the like : en
  • GB400031A - Improvements in dyeing and other treatment baths for textile materials made of or containing animal fibres : en
  • US1930482A - Clutch : en
  • US1930518A - Electrostatic loud speaker : en
  • US1930613A - Combination action for pipe-organs : en
  • US1930865A - Radio junction box : en
  • US1931044A - Shoe heel attachment : en
  • DE586403C - Range finder coupled to the lens for photographic or cinematographic apparatus : de en
  • ES1617Y - Pin for locks, doors and all kinds of similar elements. : en es
  • ES1499Y - Collar system for shirt. : en es
  • FR753581A - Improvements to baking ovens : en fr
  • ES130803A2 - A machine for compounding dies and melting lines with circular course guided die bars on wires. : en es
  • ES1572Y - Barrel-shaped cardboard or similar material packing box. : en es
  • GB399965A - Improvements in or relating to liquid heaters : en
  • GB400227A - Improvements relating to spring balance mechanism for windows, shutters, tip carts, doors and so forth : en
  • GB399914A - Means for securing valve seating rings to internal-combustion engines : en
  • US1930641A - Conveyer for manipulating cylindrical articles : en
  • US1930842A - Method of heating : en
  • AU960232A - Improvements in firebreak machines : en
  • FR753621A - Improvements to marking stamps and their applications : en fr
  • GB399922A - Improvements in or relating to the manufacture and production of ceramic transfers : en
  • GB399948A - Improvements relating to the firing of gas heated furnaces : en
  • FR753430A - Turbo-vaporizer : en fr
  • FR753624A - Device allowing the crew of a sunken submarine to enter into communication with the open air : en fr
  • DE586196C - Magnetic compass : de en
  • US1930611A - Tack button and method of making same : en
  • US1931209A - Power transmission : en
  • US1931322A - Spliced belt and method of splicing the same : en
  • US1931423A - Fruit basket or hamper : en
  • DE586243C - Filter plate : de en
  • FR753484A - Thruster for air and sea navigation : en fr
  • GB399860A - Improved suspension and bearing devices for sliding doors, windows and the like : en
  • GB399917A - Improvements in preparations for the care of the teeth and mouth : en
  • ES1600Y - Pocket mirror. : en es
  • FR753474A - Method and machine for manufacturing cartridge wads : en fr
  • FR753623A - Automatic alternating switch to stop the distribution of the motors during suction and exhaust : en fr
  • USD90871S - critchfield : en
  • FR753476A - Process for preparing a product incorporated in rubber before vulcanization : en fr
  • GB400076A - Improvements in machines for making double faced corrugated paper : en
  • DE586354C - Process for the production of a dry diazonium salt preparation : de en
  • US1930675A - Brake construction : en
  • US1931033A - Automobile jack : en
  • US1931161A - Method of making tubular articles : en
  • US1930543A - Phonograph brake mechanism : en
  • CA336490A - Hollow display form : en fr
  • US1931038A - Telegraph system : en
  • US1931253A - Hair waving machine : en
  • DE585906C - Optical pyrometer with two glow threads electrically heated by the same power source : de en
  • CA336480A - Ice cream confection : en fr
  • US1930696A - Brake : en
  • US1930850A - Cultivator : en
  • US1930768A - Food chopper : en
  • US1930461A - Faucet : en
  • US1931107A - Mooring system : en
  • US1931308A - Lock controlled electric switch : en
  • US1930816A - Slicing machine : en
  • US1931438A - Antiglare device : en
  • DE586127C - Rubber elastic bandage : de en
  • DE586184C - Suspended ceilings for fireplaces with stones suspended from hanging irons : de en
  • GB400048A - Improvements in and relating to vehicle bodies : en
  • IE12906L - Dispensing liquefied gases : en
  • US1930525A - Signaling system : en
  • US1930955A - Furniture : en
  • US1931392A - Unitary plumbing equipment for bathrooms : en
  • US1931422A - Slug finishing means for line casting machines : en
  • US1931088A - Condiment holder : en
  • US1931006A - Tool retainer : en
  • US1931098A - Windshield wiper : en
  • US1931128A - Film printing machine : en
  • US1931354A - Ingot handling device : en
  • CA336489A - Gas generator ashes removing apparatus : en fr
  • US1930473A - Airplane catapult : en
  • US1931024A - Tubing hanger and casing seal : en
  • US1931055A - Shaft bearing : en
  • US1931450A - Toaster : en
  • US1931188A - Electromagnetic relay : en
  • US1931236A - Art of sound reproduction and distribution : en
  • US1931349A - Grass edger : en
  • US1931380A - Production of titanium dioxide from titanium tetrachloride : en
  • CA336427A - Stapling device : en fr
  • CA336425A - Orthoptic instrument : en fr
  • US1930931A - Press for making talking machine records : en
  • US1931000A - Apparatus for filtration : en
  • CA336492A - Hydrocarbon oil distillation : en fr
  • CA336449A - Clutch mechanism : en fr
  • US1930545A - Current-controlling apparatus : en
  • US1931064A - Typewriting machine : en
  • US1931416A - Windrow or bunching attachment for mowers : en
  • US1930671A - Absorption refrigerating apparatus : en
  • US1930835A - Lawn mower wheel : en
  • US1930481A - Data computer : en
  • US1930494A - Gas and liquid storage device : en
  • US1930657A - Air cooled absorber for refrigerating systems : en
  • US1930870A - Calculating machine : en
  • US1931191A - Gyroscopic apparatus : en
  • US1931031A - Signal transmission system : en
  • US1930687A - Shock absorber : en
  • US1931085A - Furniture : en
  • US1930583A - Safety razor : en
  • DK47869C - Connectors for Chains, Ropes and the like. : da en
  • US1930839A - Pump : en
  • US1930493A - Gas and liquid storage device : en
  • US1930703A - Time-controlled heating device : en
  • US1931306A - Method of making pipe elbows : en
  • DE547145C - Booking machine with stamp-like printing unit and flat printing base : de en
  • FR753427A - : fr
  • FR753618A - Thermally insulated containers : en fr
  • GB400121A - Improvements relating to the manufacture of aluminium alloys : en
  • GB400130A - Apparatus for coupling railway vehicles having automatic coupling with vehicles provided with a screw coupling : en
  • ES1506Y - Metallic bed. : en es
  • ES131686A1 - A washing machine. : en es
  • GB400023A - Improvements in or relating to vacuum cleaners : en
  • DE586094C - Leafed yoke ring for electrical machines held together by welded joints : de en
  • DE586108C - Rope thimbles binding : de en
  • DE586497C - Control unit for hydraulic brake systems in aircraft : de en
  • ES131654A1 - Continuous double action press for grapes and other fruits. : en es
  • FR753452A - Improvements to pressurized fluid or vacuum brake devices : en fr
  • GB399876A - Improvements in apparatus for displaying linoleum, carpets, wallpapers and other flat sheets : en
  • FR753492A - Improvement of liquid fuel burners in the all-or-nothing system to facilitate ignition : en fr
  • DE586150C - Process for the production of O- or C-propylated (isopropylated) cresols : de en
  • DE586435C - Process for the extraction of montan wax from lignite : de en
  • DK47878C - Ship Boiler Support Device. : da en
  • DE586426C - Method and device for packaging powdery goods : de en
  • US1930982A - Oil well stuffing box : en
  • US1931048A - Valve : en
  • US1931123A - Method of isolating alpha-aryl-beta-aminoethanols and compound so obtained : en
  • US1930720A - Aeroplane running gear : en
  • DE585858C - Autonomous command device : de en
  • US1931021A - Process for preparing pyranthrone : en
  • GB399865A - Improvements relating to the cylinders of internal combustion engines : en
  • US1931187A - Ingot stripping apparatus : en
  • GB400164A - Improvements in or relating to water tube steam generators : en
  • FR753487A - Cathode ray tube : en fr
  • FR753517A - Exhaust gas turbine driven sweeping and supercharging compressor for internal combustion engines : en fr
  • FR753441A - Electro-dynamic speaker : en fr
  • FR753684A - Selective herbicides : en fr
  • DE586185C - Hanging spinning centrifuge for rayon : de en
  • FR753440A - Improvements to superchargers and compressors : en fr
  • FR753648A - Improvements to guide flanges for vehicle wheels on rails : en fr
  • GB400066A - Improvements in padded pressure surfaces and in springs for use therein : en
  • DE586170C - Process for preparing ores, in particular iron ores : de en
  • FR753671A - Device for obtaining galvanic coatings : en fr
  • GB400111A - Method of and apparatus for expanding tubes : en
  • US1931316A - Roller clutch : en
  • US1931335A - Antisiphon device for fuel tanks : en
  • FR753504A - Improvements to window shutters : en fr
  • FR753656A - Amplitude limiting devices for electric watches : en fr
  • GB400179A - Improvements in or relating to cartons or containers of paper or the like : en
  • GB400146A - Improvements in and relating to closure devices for gas receptacles and the like : en
  • GB399983A - Improvements in or relating to blocks for wood block flooring : en
  • FR753431A - Rotary piston compressor : en fr
  • FR753424A - Improvements to animated, luminous or reflective signals, with changing colors for advertising or other : en fr
  • US1930507A - Combined tractor and soil pulverizer : en
  • US1930953A - Seal for floating roofs : en
  • US1931343A - Illumination : en
  • NL32304C - : en
  • GB399972A - Improvements relating to motor vehicle wind screens : en
  • DE578486C - Manufacture of hydrazine : de en
  • GB399951A - An improved means for converting four wheeled vehicles into six wheeled vehicles : en
  • GB399850A - Improvements in or relating to the automatic mill mixing, warming, or the like working, of rubber or the like, and apparatus therefor : en
  • GB399884A - Improvements in or relating to statistical apparatus : en
  • GB400095A - Needle-eye polishing machine : en
  • GB400123A - Improvements in and relating to collapsible tubes : en
  • FR753616A - Tissue : en fr
  • GB400125A - Improvements in heaters for liquids : en
  • FR753609A - Men's Shirt Enhancements : en fr
  • GB400135A - Improvements in or relating to wetting agents : en
  • GB400021A - Improvements in or relating to winding frames more particularly for artificial textile threads : en
  • DE586061C - Device for stretching webs of material guided through a liquid bath under tension : de en
  • FR753598A - Method and apparatus for molding hollow articles made of paper, cardboard or similar fibrous material : en fr
  • GB400149A - Improvements in or relating to stirring, kneading and mixing machines : en
  • GB399853A - Improvements relating to pistons, especially applicable for internal combustion engines : en
  • DE586240C - Storm lantern with telescopic chimney : de en
  • GB400187A - A new or improved translucent sheet material and a method of manufacturing the same : en
  • DE586141C - Holder, e.g. B. for rearview mirrors on motor vehicles : de en
  • DE586125C - Soldering iron : de en
  • FR753457A - Ferraris electricity meter for alternating current : en fr
  • DK47891C - Device for Combustion of Liquid Fuel. : da en
  • GB400581A - Toothed wheel and method and machine for the production thereof : en
  • US1930808A - Cooling apparatus : en
  • US1931126A - Tally roll mechanism for accounting machines : en
  • US1931285A - Process of treating drosses : en
  • DE584839C - Belt press arranged directly from the work rolls of belt rolling mills : de en
  • US1930996A - Curtain rod threader : en
  • US1931189A - Folding table construction : en
  • FR753469A - Wheel with removable rim for automobiles and other cars : en fr
  • US1931157A - Machine tool : en
  • US1931275A - Gas and oil separator : en
  • GB400100A - Improvements relating to the voltage control of parallel alternating current circuits : en
  • GB400139A - Tool for tightening and fastening metal and other binding bands, strips and wires : en
  • FR753655A - Milling machine for machining straight, curved or left rebates : en fr
  • GB400062A - Improvements in or relating to cathode ray or braun tubes suitable for use for television and like purposes : en
  • FR753425A - Improvements to steam generators : en fr
  • DE586326C - Briquetting device for metal chips : de en
  • IE12737L - "crown cork" releasing means : en
  • US1930902A - Automatic means for the delayed actuation of fuel control means : en
  • DE586163C - Device for keeping heat exchange surfaces clean, in particular for evaporating feed water : de en
  • DE586382C - Process for the production of a product similar to the smoked raw rubber : de en
  • FR753615A - Piston for internal combustion engines or others : en fr
  • US1931014A - -aluminum sulphate : en
  • ES1564Y - Puzzles for educational hobby purposes. : en es
  • DE586451C - Axle bearing for rail vehicles with a bush-like surrounded steering knuckle : de en
  • DK47868C - Device by Toilets. : da en
  • US1931421A - Rattleproof window wedge : en
  • GB399851A - Improvements in or relating to film charging devices for use with cinematographic cameras and projectors : en
  • GB400153A - Improvements in and relating to elastic fluid generators : en
  • ES1920U - Injection syringe for local anesthesia in dentistry. (Machine-translation by Google Translate, not legally binding) : en es
  • FR753449A - Improvements to chignoles training devices : en fr
  • GB399989A - Improvements in endless tracks for vehicles : en
  • DE586388C - Device for making related information visible in graphical representations, e.g. B. local plans, maps or the like. : de en
  • FR753634A - Automatic regulation device for obtaining sheets of constant characteristics, applicable to paper and cardboard machines, or for the manufacture of other similar products : en fr
  • GB400140A - Apparatus for inserting and removing eyelets : en
  • DE579439C - Two-stroke carburetor engine : de en
  • DE586101C - Method and device for the production of fillet goods on flat weft knitting machines : de en
  • GB399952A - Treatment of cellulose fibres and fabrics : en
  • GB400110A - Apparatus for handling glass sheets in sheet drawing apparatus : en
  • US1931271A - Doorcheck : en
  • US1931367A - Noncorrosive insecticidal compositions : en
  • US1930933A - Electric commutator or the like having brushes consisting of conductive liquid jets : en
  • US1931295A - Pump operating mechanism : en
  • DE586515C - Process for the preparation of derivatives of aminoanthraquinones : de en
  • DE586241C - Support device for the height-adjustable rolls of rolling mills : de en
  • ES1567Y - Extendable bracelet or bracelet with warped links. : en es
  • FR753460A - : fr
  • USD90895S - Design for a fountain pen : en
  • DE585742C - Matrix setting and line casting machine with matrices guided in a circuit on wires, which are brought from the collecting point to the casting point by means of a pusher and are excluded here : de en
  • DE586096C - Method for the simultaneous recording of several diagrams with a single-loop oscilloscope : de en
  • DE586176C - Tandem brush holder : de en
  • DE586113C - Extension tube, especially for tripods : de en
  • DE585976C - Roll film camera : de en
  • FR753561A - Billiards : en fr
  • FR753695A - Needle bearings for piston pins : en fr
  • GB399959A - Carburettors : en
  • ES1844U - Shock absorber device for chairs and other furniture. (Machine-translation by Google Translate, not legally binding) : en es
  • US1930576A - Loud speaker : en
  • US1930737A - Metal wheel : en
  • US1930989A - Schedule indicator : en
  • US1931030A - Motor control system : en
  • US1931109A - Heat and shock resisting cast iron : en
  • US1930984A - Plaster base : en
  • US1930889A - Arch lift : en
  • US1931297A - Embroidery frame : en
  • DE586180C - Process for the preparation of chromium compounds of dyes : de en
  • GB399941A - Improvements in and relating to racks for use in storing cycles : en
  • US1931185A - Molding machine : en
  • US1931399A - Turn shoe and method for making same : en
  • DE586029C - Cardboard picture frames : de en
  • DE586117C - Savings clock : de en
  • DE586337C - Process for the operation of long-distance gas supply systems with a gas of uniformly high calorific value : de en
  • CA336447A - Rust resisting coating composition : en fr
  • DE586311C - Bath raft : de en
  • FR753435A - Plot for the separation of the two lanes of traffic on roads and in streets : en fr
  • US1930748A - Trousers protector : en
  • FR753674A - Improvements to wedging devices : en fr
  • DE586341C - Double cuff attached to the shirt sleeve : de en
  • US1930475A - Calculating machine : en
  • US1930607A - Trolley conveyer load carrying hanger : en
  • US1930618A - Liquid measuring device : en
  • US1930774A - Variable-color lamp : en
  • US1931463A - Apparatus for treating fresh fruit in preparation for market : en
  • US1931035A - Switching apparatus for sound reproducing systems : en
  • US1930924A - Harmonic selector circuit for frequency multipliers : en
  • US1930980A - Variable electrical resistor and switch : en
  • DE586038C - Device for automatic switching of the different speed and direction, especially for the moving tables of machine tools : de en
  • US1930621A - Sectional carrier for conveyers : en
  • US1931052A - Toilet ventilator : en
  • DE585859C - Automatic handgun for single and continuous fire with explosion chamber for the use of caseless ammunition : de en
  • GB399879A - Improvements in or relating to burners for solid fuels : en
  • GB400060A - Improvements in and relating to pipe unions : en
  • DE586418C - Lock with key retention before the door has closed : de en
  • US1930459A - Erich bandoly : en
  • US1930503A - Preparation of porous silicious material : en
  • US1930721A - Casket pedestal : en
  • DE586140C - Dirt trap for vehicles of all kinds, especially for motor vehicles : de en
  • DE586456C - Electroacoustic apparatus : de en
  • US1930776A - Combination of alpha broadcasting receiver set and alpha gramophone : en
  • US1930803A - Manufacture of artificial filaments : en
  • US1931170A - Barrel painting machine : en
  • US1931201A - Flier construction : en
  • US1931347A - Apparatus for preparing potable water : en
  • US1930788A - Apparatus and process of making abrasive tools : en
  • CA336394A - Hydraulic clutch : en fr
  • GB400131A - Pistons : en
  • CA336403A - Tool or clamping lever : en fr
  • FR753532A - Device for stabilizing the suspended part of vehicles : en fr
  • DE586430C - Reed with a wavy line of repulsion : de en
  • DE586483C - Filling shaft closure for permanent fire ovens : de en
  • US1930759A - Electrical network : en
  • US1930588A - Fumigating apparatus and process : en
  • DE586060C - Device for making the hard and stiff sized warp supple in the sizing machine : de en
  • US1931037A - Conveyer : en
  • US1931152A - Method of making disk wheels : en
  • AU961032A - Improved valve gear especially applicable to axial engines : en
  • US1931058A - Manufacture of phenyl esters of phosphoric acid : en
  • US1930935A - Hand bag : en
  • US1931125A - Soundproof door : en
  • US1931068A - Cigarette and cigar extinguisher : en
  • GB400036A - Improved x-ray device particularly for dental purposes : en
  • DE586348C - Tension rail for letter folder : de en
  • DE586075C - Method and device for rectifying vapors, especially for the operation of absorption refrigerators : de en
  • US1930648A - Filing device : en
  • CA336397A - Tire valve : en fr
  • US1930904A - Procedure and device for the protection of plants from frost and for the repression of vermin by artificial fog : en
  • US1931054A - Measuring apparatus : en
  • US1931169A - Gear cutting tool : en
  • US1930574A - Tufting table apparatus : en
  • US1930670A - Fire detecting and extinguishing system : en
  • US1931114A - Device for arranging and feeding string beans or the like : en
  • US1930922A - Amphibian aircraft : en
  • CA336420A - Pencil : en fr
  • US1930742A - Table : en
  • US1930920A - Train control system : en
  • US1930964A - Method of striking and maintenance of an electric arc in alpha medium having alpha great dielectric strength : en
  • US1931289A - Chair spacing device : en
  • US1930743A - Passenger truck suspension : en
  • US1931047A - Paper container or bottle : en
  • DE585255C - Device for volume control in devices for sound reproduction after sound recordings : de en
  • CA336488A - Container cap : en fr
  • US1931232A - Safety device : en
  • US1931398A - Coin mat : en
  • CA336423A - Spectacle frame arm : en fr
  • US1931138A - Adjustable pencil holder : en
  • DE586088C - Single-frequency radio transmitter with local synchronization by means of piezo crystal control : de en
  • GB400280A - Method of moulding materials : en
  • CA336386A - Saw tooth and mould : en fr
  • DE586070C - Ball valve for drainage taps : de en
  • GB400106A - Piston packing in piston engines of all kinds, especially in diesel engines : en
  • US1931145A - Heating system : en
  • CA336408A - Direction indicator : en fr
  • DE565152C - Process for cleaning the spray electrodes of electric gas cleaners : de en
  • CA336419A - Mechanical oscillator : en fr
  • US1930686A - Emulsifying apparatus : en
  • US1930954A - Automatic shut-off for filling spouts : en
  • DE586402C - Viewfinder mirror attachment to photographic box cameras : de en
  • DE586422C - Device for the production of wall cladding panels u. like : de en
  • US1931069A - Electroresponsive apparatus : en
  • DE586195C - Device for keeping a moving system level with the help of a gyro supported in the center of gravity : de en
  • US1930589A - Machine and method of swedging characters on metal articles : en
  • US1930620A - Mechanic's electric headlight : en
  • US1930658A - Railway journal box : en
  • US1931177A - Eyeglasses or spectacles : en
  • US1931247A - Heating device : en
  • US1930888A - Woodworking machine : en
  • CY35A - Smelting sulphide ores to recover elemental sulphur therefrom : en
  • DE586427C - Pleating device : de en
  • FR753448A - Army paper strip : en fr
  • GB399982A - Improvements in card indexes : en
  • US1930462A - Automatic aeroplane releaser : en
  • FR753447A - Method and device for operating electric discharge lamps powered by high frequency currents : en fr
  • FR753578A - Arc welding : en fr
  • GB400186A - Improvements in or relating to gas radiators : en
  • GB399902A - Improvements relating to distributing or separating boxes for electric cables : en
  • FR753462A - Method and device for the concentration of volatile fatty acids : en fr
  • DE586213C - Fountain pen : de en
  • US1931025A - Sound film recording apparatus : en
  • FR753591A - Device for tilting, in bends, the body of vehicles of all kinds, in particular automobiles : en fr
  • GB399883A - Fuel-injection pumps for internal-combustion engines : en
  • CA336476A - Paper colouring apparatus : en fr
  • DE586269C - Circular knitting machine : de en
  • DE586389C - Perpetual calendar : de en
  • US1931154A - Refrigerator condenser : en
  • CA336395A - Fire and burglar alarm : en fr
  • CA336497A - Rotary pump : en fr
  • DE586105C - Steam cooking device with cooking vessels that can be stacked in a cover : de en
  • DE586033C - Adjustable seat, in particular for use in aircraft : de en
  • DE586062C - Device for drinking broad tissue or the like. : de en
  • US1931183A - Truck spring : en
  • US1930603A - Fastener : en
  • US1930631A - Signaling system : en
  • CA336446A - Catalytic composition : en fr
  • US1930470A - Anchor plug : en
  • US1930880A - Electrical heating apparatus : en
  • US1931168A - Carbon sheet : en
  • USD90891S - Design for a textile fabric or : en
  • AU959632A - Improvements in or relating to cooking stoves orthe like : en
  • US1930471A - Manufacture of cellulose derivatives : en
  • US1931222A - Lubrication of compressors : en
  • DE586089C - Power cables made of individually leaded cores : de en
  • FR753490A - Scooter or scooter device operated by rotary motion pedal : en fr
  • US1930869A - Evaporating means : en
  • NL31126C - : en
  • US1931364A - Process of purifying technical sodium pyrosilicate hydrates : en
  • US1931112A - Method of treating petroleum emulsions : en
  • US1931214A - Apparatus for flowing wells : en
  • US1931359A - Signal device for vehicles : en
  • CA336409A - Liquid fuel burner : en fr
  • US1930959A - Vehicle lifting and rotating apparatus : en
  • US1930497A - Automobile headlight control : en
  • US1930817A - Sediment trap : en
  • US1930886A - Mouse trap : en
  • CA336485A - Gasket : en fr
  • NL32132C - : en
  • CA336473A - Oscillating sieve : en fr
  • GB400019A - Improvements in or relating to harrows : en
  • GB400245A - Improvements in or relating to reciprocating steam engines : en
  • US1930528A - Control apparatus : en
  • US1930532A - Vanity case : en
  • DE586256C - Compressed air braking device : de en
  • US1931078A - Handle for umbrellas : en
  • US1930775A - Magnetic compass : en
  • US1930797A - Electromotor : en
  • US1930875A - Process of removing hydrogen sulphide from gases : en
  • US1931291A - Current-interruption-compensating mechanism for electric clocks and the like : en
  • US1931344A - Micropincette : en
  • US1930622A - Double ball lock caster : en
  • US1930674A - Relay for brake rigging : en
  • US1930604A - Current and potential measuring transformer : en
  • USD90885S - Design for a kitchen cabinet : en
  • US1930928A - Mounted device : en
  • DE586330C - Method and device for preventing the deformation of ceramic briquettes which are cut from an endless strand of mass produced on the extruder : de en
  • FR753414A - Pipe connection : en fr
  • GB400640A - Improvements in or relating to sliding clasp fasteners : en
  • DE586143C - Process for coating pipes, in particular centrifugally cast pipes : de en
  • DE586395C - Device for bending pipes : de en
  • ES131673A3 - A fruit sizing apparatus. : en es
  • AU912032A - Improvements in and relating to lift well door operating and controlling means : en
  • US1930585A - Tire : en
  • US1930841A - Receptacle : en
  • US1931390A - Coal washing machine : en
  • USD90902S - Design for a display rack : en
  • US1931371A - Plastic material manufacture : en
  • US1931190A - Electric heating element for steam cookers : en
  • FR753562A - Improvements to copper-based alloys : en fr
  • FR753603A - Improvements to dumpers : en fr
  • US1930756A - Rotary apparatus for contacting gaseous and nongaseous materials and gas sealed joint therefor : en
  • US1931026A - Bearing : en
  • DE586261C - Procedure for more accurate frequency measurement : de en
  • DE586265C - Device for the simultaneous control of the flue gas valve and an air inlet valve for secondary air exiting from the fire bridge in firing systems : de en
  • DE586329C - Ring roller press for briquetting of cohesive material, especially dry lignite : de en
  • US1931139A - Wheeled toy : en
  • USD90899S - Design for a weighing scale : en
  • US1931403A - Display rack : en
  • US1931074A - Grain cleaning apparatus : en
  • US1931309A - Composite product and method of making the same : en
  • US1931318A - Connection device : en
  • DE586106C - Double-walled pot with pipe and water level glass for pasteurizing milk : de en
  • DE586255C - Locomotive vehicle with evaporation precipitation : de en
  • DE586189C - Vacuum cleaner with two motor-driven fans : de en
  • FR753611A - Improvements to devices controlling the attachment of dies to printing machines : en fr
  • US1930683A - Polishing machine for colored pulverulent bronze : en
  • US1930934A - Hedge trimmer : en
  • US1931276A - Vending machine for roll material : en
  • US1930495A - Gas and liquid storage device : en
  • US1930846A - Extension table : en
  • US1931070A - Automatic volume regulation : en
  • US1931091A - Talking stock quotation board : en
  • US1931022A - Paper napkin : en
  • US1931283A - Actinometer : en
  • USD90896S - Design for a trailer : en
  • DE586461C - Method for reducing couplings in telecommunication cables with air space cores : de en
  • FR753502A - Pipe fittings and method of making them : en fr
  • US1931391A - Guard : en
  • AU992632A - Improvements in and relating to multi-wallpaper bags and tothe manufacture thereof : en
  • US1930727A - Auxiliary melting pot for linotype machines : en
  • US1931008A - Process and apparatus for separating intermixed divided materials : en
  • US1931015A - Ash receiver for smokers : en
  • US1930662A - Vehicle brake assembly : en
  • US1930765A - Cartridge with primary and secondary charges : en
  • US1930895A - Cellulose esters and process of making same : en
  • US1930907A - Finger ring : en
  • GB400059A - Manufacture of dyestuffs and intermediate products therefor : en
  • CA336470A - Refrigerating machine : en fr
  • US1931194A - Centrifugal separator : en
  • US1930867A - Chair head rest : en
  • US1930855A - Combination harvester-thresher : en
  • US1931200A - Starter : en
  • US1931017A - Discharge valve : en
  • US1930818A - Method and means to obtain reclaimed used journal box waste with alpha definite oil content : en
  • US1930962A - Electric switch and operating mechanism therefor : en
  • US1930970A - Method and apparatus fob forming : en
  • US1931410A - Laundry machine : en
  • US1931342A - Gasoline thiefproof appliance : en
  • US1931425A - End cap for golf club grips : en
  • NL31007C - Method and apparatus for covering sheets or strip-shaped material with a film, in particular for marbling paper : en nl
  • US1930548A - Propeller with variable pitch : en
  • USD90889S - Design fob an amusement apparatus : en
  • AU914632A - Control device for exhaust port of grease gun of pneumatic-hammer type : en
  • US1930627A - Means for improving contact operation : en
  • US1931302A - Method of dipping centers : en
  • US1931313A - Coupling between objective adjustment and distance gauge in cameras : en
  • US1931027A - Vibration damper : en
  • US1931439A - Sectional apron drier : en
  • US1930945A - Navigating apparatus and method of operating the same : en
  • US1930988A - Field box head : en
  • US1931147A - Method for transferring printed figures or pictures : en
  • CA336404A - Sodium bicarbonate : en fr
  • DE586488C - Piezoelectric pickup : de en
  • CA10117S - Shoe sole : en
  • DE586040C - Electrically driven block and slab shears, cutting from bottom to top : de en
  • FR753549A - Manufacturing process for products imitating pigskin : en fr
  • GB399979A - Improvements in fastening means : en
  • DE585952C - Device for protecting electrical lines : de en
  • DE586058C - Note gate : de en
  • DE586192C - Agitator for deck ovens : de en
  • GB400583A - Means for supplying volatilised fuel to internal combustion engines : en
  • DE581813C - Vaulted work piece grinding bowl, especially for grinding meniscus-shaped glasses : de en
  • GB400035A - Process for treating artificial materials obtained from viscose : en
  • DE586146C - Slow moving exercise machine for indoor sports : de en
  • DE586487C - Wallcovering : de en
  • CA336410A - Vessel and bottle opener : en fr
  • CA336424A - Breeches : en fr
  • US1930975A - Lock : en
  • DE586254C - Device for starting electric salt bath or melting furnaces : de en
  • US1930635A - Truck body : en
  • CA336380A - Air or gas supplying apparatus for liquids : en fr
  • DE586044C - Equipment on sewing machines for sewing and linking, especially with rough thread material : de en
  • CA336426A - Stapling machine : en fr
  • AU944232A - An improved lifting device for disc cultivators and similar agricultural implements : en
  • CA336445A - Alkali salt : en fr
  • DK47870C - Device for Farrowing Apparatus for Lakes. : da en
  • ES131664A1 - Hydraulic recovery mechanism for mobile cannon machine guns. : en es
  • US1930694A - Power shovel : en
  • US1930747A - Manufacture of rubber belts : en
  • US1930969A - Autocollimating device : en
  • US1931452A - Hydraulic machine tool feed : en
  • US1930957A - Road chair : en
  • DE585863C - Device for resolving a numerical value representing a quantity into a sum of powers of two, preferably for remote measurement : de en
  • CA336502A - Wall and block : en fr
  • US1931219A - Spool for photographic films : en
  • FR753491A - Piston improvements : en fr
  • DE586339C - Procedure for opening the pressure valve in fuel pumps : de en
  • GB400075A - Improvements in coin-controlled devices for holding and securing hats, coats and other articles : en
  • GB399992A - Improvements in machines for cutting screw-threads : en
  • DE586239C - Garment with belt on the outside : de en
  • ES1510Y - Steel tube union sleeve for tram poles. : en es
  • US1930660A - Baby carriage : en
  • US1931235A - Sound reproducing system : en
  • CA336444A - Sulphur production : en fr
  • CA336382A - Hot fluid gun : en fr
  • DE586072C - Rapid regulator for turbines : de en
  • DE586462C - Switching drum for electrical rotary switches : de en
  • GB400044A - Improvements in or relating to the manufacture of waterproof footwear : en
  • GB400101A - : en
  • ES1628Y - Elastic fastener for pants. : en es
  • GB400127A - Improvements in postal envelopes or the like : en
  • ES1623Y - Carbon paper sheet holder. : en es
  • US1930706A - Cover locking device for centrifugal machines : en
  • FR753686A - Improved fitting mode for excavators and other excavators : en fr
  • FR753518A - Device for maneuvering the needles of a double crossing-junction : en fr
  • US1930557A - Four-way hydraulic switch : en
  • US1930823A - Vehicle propelling mechanism : en
  • US1930829A - Circuit arrangement for an ion relay and alpha mechanical relay : en
  • US1930947A - Water cooler : en
  • FR753573A - : fr
  • GB400117A - An improved button fastener : en
  • DE585960C - Wooden silo : de en
  • ES1530Y - Wooden container and container. : en es
  • FR753592A - Device for cleaning blackboards, etc. : en fr
  • GB399971A - Improvements in and connected with ingots : en
  • DE586479C - Wire mesh grater : de en
  • DE586414C - Knife for meat mincers : de en
  • FR753556A - Press for forming socket heads and other similar parts : en fr
  • GB400061A - Improvements in devices for facilitating reading in bed : en
  • FR753494A - Point marker : en fr
  • US1931045A - Grass shears : en
  • DE586257C - Electromechanical train control device : de en
  • ES131299A3 - A procedure to obtain blued blades for razors. : en es
  • US1930665A - Folder for sewing machines : en
  • DE586248C - Radiation boiler : de en
  • FR753497A - Motor car steering lock device : en fr
  • GB400112A - Device for tracing lines on tennis grounds, sporting grounds and the like : en
  • ES1545Y - Illuminated sign armor. : en es
  • US1930763A - Piezo-electric device : en
  • US1930633A - Lavatory : en
  • DE586131C - Magnification device with a constant magnification ratio : de en
  • GB399988A - Improvements relating to rakes : en
  • FR753653A - Transformative device to maintain, raise or retract and put back in their original place the slackened organs of the body : en fr
  • GB400209A - Improvements in and relating to mechanism associated with the distribution of powder or other granulated material for toilet, surgical or other purposes : en
  • US1931270A - Dispensing receptacle : en
  • DE586048C - Liquid transport vessel with vessel closure to protect against refilling : de en
  • DE586055C - Bunker closure, consisting of individual plates that are lined up and can be moved along the outlet : de en
  • FR753547A - Rotary file dispenser : en fr
  • DE586116C - Door control device for storage rooms, apartments, cupboards, suitcases or the like. : de en
  • ES1852U - Signals for tokens with a corresponding device (Machine-translation by Google Translate, not legally binding) : en es
  • FR753470A - Apparatus for immediate sale, e.g. chocolate : en fr
  • GB400079A - Improvements in or connected with pipe and like joints : en
  • US1930745A - Method and means for cold treating metal tubing : en
  • US1931019A - Synchronized clock system and secondary clock therefor : en
  • US1931032A - Container : en
  • US1931352A - Apparatus for drawing metal tubes : en
  • CA336505A - Arsenic and antimony compound : en fr
  • GB399905A - Improvements in sizing textile fibres : en
  • DE586302C - Pressing and closing device on continuously working digesters : de en
  • DE586053C - Wedge connection for shoe slides with screw locking : de en
  • FR753513A - Bicycle garage : en fr
  • GB400134A - Improvements in or relating to shock absorbers : en
  • DE586078C - Process for removing arsenic and antimony from iron and manganese ores : de en
  • DE586355C - Process for the preparation of diazo compounds in solid form : de en
  • ES131699A2 - IMPROVEMENTS IN THE OBJECT OF THE MAIN PATENT : en es
  • GB400030A - Tissue packet : en
  • CA336443A - Scoring and trimming machine : en fr
  • FR753405A - Multiple tariff meter : en fr
  • US1930642A - Saw welding clamp : en
  • US1931160A - Parachute : en
  • GB400225A - Improvements in pile fabrics and method of making the same : en
  • GB400282A - Improvements in transmission gearing : en
  • DE586434C - Blow-out pipe protection : de en
  • GB399868A - Manufacture of plastic materials for the production of insulated conductors and of products therefrom : en
  • FR753580A - Actuating device for automatic liquid dispenser : en fr
  • GB400141A - Film reel for cinematographic apparatus : en
  • US1930639A - Electrical connecter : en
  • US1930492A - Combination bottle opener, jar top remover, and corkscrew : en
  • FR753575A - Improvements to compressed fluid blowers for cleaning the tubes of steam generators and the like : en fr
  • GB400032A - An improved plug for use with electrical apparatus : en
  • US1930789A - Method of automatic liquid temperature control and apparatus for carrying same into effect : en
  • US1931274A - Constant reading depth indicator and flow valve therefor : en
  • DE586393C - Seal for machine parts that are held in a sleeve and can be pivoted with this sleeve : de en
  • US1931387A - Batting practice cage : en
  • GB400050A - Improvements in or relating to centrifugal moulding machines : en
  • GB399993A - Improvements in couplings or clamps for scaffold poles and the like : en
  • FR753548A - New device for fixing and isolating grilles and protective anode tubes for metal steam or rare gas devices : en fr
  • US1930960A - Safety device for high pressure vessels : en
  • US1930978A - Metallic shelving and the like : en
  • US1931260A - Transmission : en
  • FR753693A - Envelope with its opening means : en fr
  • GB400155A - Improvements in and relating to radio picture receiving apparatus : en
  • FR753560A - Process for wrapping or marking agglomerates of hard coal, lignite or other combustible materials : en fr
  • FR753419A - Improvements to high frequency amplification setups for very short waves : en fr
  • FR753429A - Oil burner : en fr
  • FR753464A - Method and apparatus to be used for cutting leather : en fr
  • US1930501A - Pyrophoric lighting mechanism and associated cane structure : en
  • US1930766A - Gasket or packing structure : en
  • ES1550Y - Extendable strap for watch band. : en es
  • IT312092B - Device to ensure the exact location of the cards in the workshop control clocks. : en it
  • US1930587A - Process of acid grooving safety glass : en
  • US1930896A - Shipping carton and platform : en
  • USD90873S - Design fob a kitchen unit : en
  • USD90886S - Design for an electric iron : en
  • FR753577A - Treatment of filaments of incandescent lamps and other similar articles : en fr
  • DE586228C - Process for the production of rayon from acetylation products of incompletely nitrated nitrocelluloses : de en
  • DE586361C - Circuit for trolleybuses : de en
  • GB399930A - Improvements relating to dashpots : en
  • GB400018A - Improvements in oil or liquid seals or retainers : en
  • US1931234A - Wedge and method of making the same : en
  • DE586086C - DF antenna system, consisting of a loop antenna and an auxiliary antenna coupled to it : de en
  • US1931307A - Tubing for and method of making bends : en
  • US1930691A - Superheterodyne receiver : en
  • US1930851A - Heating boiler : en
  • US1931314A - Fabric roll edge protector : en
  • GB400070A - Improvements in aeroplane undercarriages : en
  • CA336460A - Hydrogen sulphide separation : en fr
  • DE586440C - Process for the production of audio-visual films in which the audio and video recordings are developed together : de en
  • DE586215C - Polishing, especially large furniture parts : de en
  • FR753467A - Tin can with interlocking lid : en fr
  • GB399892A - Improvements in air release valves : en
  • ES1509Y - Metallic skirting. : en es
  • ES1921U - Volumetric water meter (Machine-translation by Google Translate, not legally binding) : en es
  • GB400142A - Knitting machine : en
  • FR753510A - Process for impregnating porous materials : en fr
  • GB400122A - An improved method of manufacture of revolving wire, fibre or bristle brushes : en
  • FR753558A - Process and devices for the manufacture, using rubber, linoleum and the like, of mosaic coverings capable of imitating a tile : en fr
  • GB399897A - Steering stabilizer for motor vehicles : en
  • GB400033A - Improvements in switches for electric irons and other electric appliances : en
  • GB399920A - Method for producing artificial silk without employment of individual spinning pumps : en
  • FR753482A - Electric switch for motor vehicles with automatic operation in the event of an accident : en fr
  • FR753586A - Self-locking brake for cycles : en fr
  • GB400120A - Improvements in or relating to umbrella tents : en
  • FR753509A - Improvements to hermetically sealed boxes : en fr
  • FR753542A - Process for bonding paraffin paper : en fr
  • GB400119A - Improvements in and relating to moving coil loud speakers : en
  • DE586303C - Process for making replacement negatives for multi-color printing : de en
  • ES1925U - Cork buoy float. (Machine-translation by Google Translate, not legally binding) : en es
  • DE586499C - Sails for watercraft : de en
  • DE586300C - Collapsible refrigerator dummy for demonstration purposes : de en
  • GB399918A - Improvements in control valves for liquid elevating apparatus : en
  • CA336457A - Scale nose iron : en fr
  • US1931220A - Treatment of zinc oxide residues : en
  • GB400040A - Improvements in or relating to magnetic induction compasses : en
  • IE13131L - Container for liquefied gases : en
  • GB400244A - Improvements in the delustring of artificial silk : en
  • DE586270C - Method for expanding knitted fabrics on the flat weft knitting machine : de en
  • FR753641A - Endless belt improvements for all applications : en fr
  • GB399886A - Improvements in or relating to flying machines of the helicopter type : en
  • DE586500C - Hair thinning machine : de en
  • US1931461A - Crate : en
  • US1930509A - Control apparatus : en
  • FR753569A - Voltage regulator for alternating current : en fr
  • GB399987A - Improvements in electric soldering irons : en
  • FR753630A - Synchronous or synchronized asynchronous motor : en fr
  • DE586193C - Device for the automatic maintenance of a moving system in a certain angular position to the gravitational field independent of the overall acceleration field with the help of gyroscopes : de en
  • DE586349C - Manufacture of arseniates : de en
  • DE586448C - Typewriter, typewriter, etc. Like. With an automatic car elevator : de en
  • GB400000A - Process of preparing a dry substance or powder from emulsions and/or solutions : en
  • DE586467C - Additional device for alternating current watt-hour meter for use as overconsumption meter with counter-torque generated by a compensation transformer : de en
  • GB400041A - Improvements in and relating to processes of and devices for detecting metals, metal objects, ores, and minerals : en
  • DE586165C - Casting pump for die setting and line casting machines with several cylinders : de en
  • DE586298C - Overload overrunning clutch : de en
  • GB399882A - Improvements in or relating to electric storage batteries or accumulators : en
  • IE12614L - Basic alum manufacture : en
  • US1930965A - Display rail and hook : en
  • US1931096A - Bolt type emergency governor : en
  • US1930919A - Method of producing magnetic materials : en
  • CA336464A - Lubricating system : en fr
  • FR753453A - Improvements to pressurized fluid or vacuum brake devices : en fr
  • GB400167A - Improvements in and relating to electrically wound clockwork mechanism : en
  • CA336417A - Educational machine : en fr
  • CA336491A - Condenser : en fr
  • DE586067C - Process for the production of alcohols : de en
  • US1931216A - Vanity case and analogous article : en
  • DK47874C - Root crop. : da en
  • DK47876C - Hair comb. : da en
  • FR753523A - Tank stabilization installation for boats : en fr
  • FR753601A - Improvements to radiators for fast vehicles : en fr
  • US1930502A - Combined home recording disk and stylus therefor : en
  • US1930581A - Control mechanism for movingpicture apparatus : en
  • US1931029A - Alleviator for hydraulic apparatus : en
  • US1931269A - Reenforcement device : en
  • US1930612A - Telephone system : en
  • US1931448A - Reflection sign : en
  • USD90864S - Design for a spoon or similar : en
  • DE586368C - Light-sensitive device in which an exposed and an unexposed selenium cell are surrounded by an envelope that protects against sudden changes in temperature : de en
  • FR753401A - Process for the preparation of oil-soluble gold compounds, and products thereof : en fr
  • US1931090A - Condiment holder : en
  • DE586351C - Process for the preparation of sulfenamides twice substituted on nitrogen : de en
  • DE586121C - Process for the implementation of wires and tapes through baths : de en
  • GB399957A - Improvements in apparatus for determining the direction of magnetic or electro-magnetic fields : en
  • GB399978A - An improved electric gas-detecting lamp : en
  • US1930983A - Electrically operated spraying apparatus : en
  • US1931061A - Coil winding machine : en
  • GB399963A - Improvements in or relating to wire-spoked vehicle wheels : en
  • US1931104A - Elastic fluid turbine : en
  • US1931370A - Grinding, polishing, lapping, and finishing of metals : en
  • GB399998A - Manufacture of preparations of starch-degrading enzymes : en
  • GB400595A - Improvements in display or storage apparatus for bottles, jars or other receptacles : en
  • USD90876S - Design for a refrigerator cabinet : en
  • FR753614A - Improvements to projectiles and their launching devices : en fr
  • GB400180A - Improvements in the manufacture of artificial threads, yarns and the like : en
  • GB400184A - Improvements in fluid-pressure engines : en
  • US1930499A - Oscillation generator : en
  • US1931340A - Marble shooter : en
  • AU1072332A - Improvements in and relating tothe production of synthetic resins ofthe alkyd type and compositions containing thesame : en
  • US1930795A - Shuttle : en
  • CA336406A - Grazing muzzle : en fr
  • US1930976A - Electric current inverting system : en
  • US1931385A - Cabinet for delivering measured quantities of materials : en
  • US1930520A - Refrigerating apparatus : en
  • US1930713A - Vacuum tube structure : en
  • US1930478A - Aerial navigation instrument : en
  • US1930551A - Electrically heated apparatus : en
  • CA336471A - Air filter : en fr
  • US1930754A - Chlorination of arylamines : en
  • US1930786A - Crankless motor-compressor : en
  • NL31019C - Method of tanning hides : en nl
  • US1931240A - Process of calcining gypsum : en
  • US1931328A - Chuck : en
  • US1930783A - Fastening device : en
  • DK47875C - Blade transfer device for cigar machines. : da en
  • DE586258C - Circuit arrangement for the correction or conversion of current surges in telephone systems with dialer operation : de en
  • DE555495C - Process for degassing the anodes of mercury vapor rectifiers : de en
  • DE586222C - Self-winding wristwatch : de en
  • FR753658A - Industrial process for obtaining carbon monoxide : en fr
  • CA336458A - Wetting, cleansing and dispersing agent : en fr
  • US1930513A - Elevator control system : en
  • DE586224C - Process for the fermentation of alcohols u. like : de en
  • US1931375A - Machine for forming hollow glassware : en
  • US1931095A - Die holder : en
  • US1931204A - Process for the manufacture of halogenated alcohols : en
  • US1930872A - Perfume atomizer : en
  • US1931205A - Calendar stand : en
  • US1931407A - Spring seat : en
  • DE586491C - metronome : de en
  • CA336392A - Composite metal article : en fr
  • NL31009C - : en
  • USD90870S - Design for a textile fabric or : en
  • FR753416A - Device for the undying hair : en fr
  • DE586194C - Artificial gyro horizon with a device to compensate for the ride over the ground : de en
  • ES130972A1 - Improvements in or related to the manufacture of luminous reflector lamps. : en es
  • US1930777A - Dust arrester for air ducts : en
  • US1931272A - Soot blower : en
  • DE586104C - Braiding machine with toothed drive plates : de en
  • AU960532A - Improvements in or relating to frequency modulation systems : en
  • CA336454A - Reciprocating crosshead engine : en fr
  • US1931284A - Printing machine : en
  • DE586450C - Method of hardening : de en
  • US1930837A - Continuously feeding drying machine : en
  • GB399943A - Improvements in electrical contact pieces : en
  • GB400238A - Improvements in the heat treatment of magnetic material in coil form : en
  • AU973932A - Improved dumping press : en
  • AU953832A - Improved magnetic induction alternating current generators : en
  • US1930469A - Hairpin : en
  • CA336462A - Electric spark discharge system : en fr
  • US1930690A - Adjusting tool for roller-bearing wheels and axle assemblies and the like : en
  • US1930958A - Wave motor : en
  • US1931217A - Locomotive driving box lubricator : en
  • US1931102A - Oscillatory joint : en
  • DE586249C - Stuffing box for water level indicator : de en
  • DE586449C - Process for printing marble patterns that are as realistic as possible : de en
  • US1930910A - Tanning solution : en
  • CA336385A - Golf club : en fr
  • US1931002A - Method of and apparatus for improving articles deposited from rubber dispersions : en
  • US1930510A - Blank conveying apparatus : en
  • US1930575A - Apparatus for drying sheets : en
  • US1930866A - Aerial target : en
  • US1931290A - Store-front construction : en
  • US1930561A - Electrically operated regulator : en
  • US1930903A - Pressing box filter protection : en
  • US1931252A - Can varnishing machine : en
  • DE586436C - Distillation process : de en
  • US1930884A - Shaker chute construction : en
  • DE584137C - Process for preparing iron and steel blocks for extrusion : de en
  • DE586360C - Driving switch for electric rail vehicles : de en
  • DE586132C - Photo device for copying or duplicating documents etc. like : de en
  • DE586319C - Tear machine for loose soles : de en
  • US1931100A - Lighting fixture : en
  • US1931175A - Trap : en
  • US1931258A - Tie rod end assembly : en
  • US1931256A - Carpet, rug, and runner fastener : en
  • US1931378A - Toy blackboard : en
  • US1930534A - Ventilator pipe cap : en
  • US1930738A - Headlight : en
  • US1931171A - Feed mechanism for machine tools : en
  • DE573382C - Hydraulic brake with wheel control : de en
  • DE585788C - Automatic valve control device for water softeners : de en
  • DE586178C - Electrical discharge tubes for receiving or amplifying electrical vibrations : de en
  • DE586252C - Syllable typewriter : de en
  • DE586294C - Glow wire spark plug : de en
  • DE586122C - Sharpening device for saws : de en
  • DE586217C - Storage of the latch bolt in briquette extrusions : de en
  • DE586373C - Casting trolley : de en
  • DE586277C - Ribbon or wire extension spring for upholstered seats, spring bases and mattresses : de en
  • ES131670A1 - An absorption cooling device based on two means of periodic action. : en es
  • FR753605A - Maneuvering device for automatic telephone devices : en fr
  • ES131055A1 - Improvements in rotating electrical machines. : en es
  • ES131671A1 - Improvements in coupling linkages, especially for motor vehicles. : en es
  • US1930802A - Jacking of motor and other vehicles : en
  • FR753516A - Improvements to machine gun carriages for aircraft : en fr
  • FR753551A - equal wave transmitter : en fr
  • FR753555A - Advanced training in vehicle headlights : en fr
  • FR753544A - Improvements relating to filters or thickeners : en fr
  • GB399866A - Improvements in or relating to telephone systems : en
  • GB399906A - Improvements in and connected with flat-wick oil lamp burners : en
  • GB400006A - Improvements in or relating to vibrators for screens and other apparatus : en
  • GB399954A - Improvements relating to key forming devices for use in the construction of composite concrete and plaster structures : en
  • GB400046A - Improvements in electric headlights for motor vehicles : en
  • GB400069A - Manufacture of nuclear substitution products of acenaphthalic acid and 1:4:5:8-naphthalenetetracarboxylic acid : en
  • US1930684A - Method of manufacturing bronze colors : en
  • US1930689A - Lubricating means for car axles : en
  • US1931353A - Seed planter : en
  • US1931383A - Typewriting machine : en
  • CA336439A - Piston ring : en fr
  • DE586137C - Self-priming centrifugal pump with vertical shaft : de en
  • DE586210C - Switching device for interchangeable clutches, especially for motor vehicle transmissions : de en
  • FR753589A - Production of new water insoluble azo dyes and resulting products : en fr
  • GB399996A - Improvements relating to match cases or holders : en
  • CA336486A - Container and closure : en fr
  • DE586114C - Protractor, especially for measurements in the mountains : de en
  • DE586076C - Device for cleaning the refrigerant : de en
  • DE586085C - Volume control for radio receivers with optionally connectable electronic baffles : de en
  • DE586437C - Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes : de en
  • US1930638A - Thermal controller : en
  • FR753458A - In-line casing boring machine : en fr
  • DE586384C - Electron beam tubes for optical sound recording as well as for television u. like purposes : de en
  • FR753669A - Improvements to leg legs and installations for working pigs and other slaughtered animals : en fr
  • US1930767A - Cotton picker : en
  • DE586439C - Electric musical instrument : de en
  • US1930899A - Aneroid and operating means therefor : en
  • FR753404A - Printer controller, perforator or totalizer : en fr
  • GB400096A - Improvements in pencil sharpeners : en
  • GB399878A - Improvements relating to gas fires : en
  • GB399980A - Improvements in fastening means : en
  • US1930547A - Cabinet construction : en
  • US1930993A - Lamp support : en
  • GB400071A - New or improved powder distributor : en
  • DE586035C - Aircraft engine made up of two cylinder groups arranged on a common crankshaft housing with two propellers arranged one behind the other on the same axis : de en
  • US1931155A - Method of and apparatus for applying envelope fasteners : en
  • US1931434A - Bottle capping machine : en
  • GB399896A - Improvements in or relating to electric fuses : en
  • GB400001A - Process for producing a hardened surface on rubber goods : en
  • DE586052C - Strapless snowshoe binding with sole edge spikes held down between slits in the upright toe thighs by hinged hinged latches : de en
  • DE586365C - Selective protection relay : de en
  • DE586498C - Bicycle lock : de en
  • GB399872A - Improvements in or relating to knitted fabrics : en
  • USD90892S - Design fob a ringleter : en
  • CA336399A - Locomotive ash pan : en fr
  • GB399942A - Improvements in clutch mechanism for power operated machines : en
  • US1930811A - Apron tension device : en
  • US1931221A - Tractor attachment : en
  • CA336452A - Partition : en fr
  • FR753627A - : fr
  • DE586412C - Device for cutting out the lids of tin cans : de en
  • DE586264C - Ash collecting container for furnaces : de en
  • GB400054A - A process for the removal of acetylene from gases : en
  • US1930606A - Meat beam : en
  • US1931264A - Process for the manufacture of quinizarine green and related products : en
  • US1931159A - Water glass cooler : en
  • GB399891A - Improvements in and relating to rotary fluid pressure motors : en
  • US1930751A - Chlorination of omicron-toluidine : en
  • US1930719A - Automobile apron protector : en
  • FR753610A - Portable device for childcare : en fr
  • GB399888A - Improvements in and relating to direct current generators : en
  • DE586126C - Fastening and dowel screw, especially for keyboard musical instruments : de en
  • FR753659A - Device for measuring the ratio of two sinusoidal voltages and in particular for measuring the gain of an amplifier : en fr
  • GB400022A - Improvements in or relating to x-ray tubes having a rotatable anode : en
  • DE586168C - Spacer wedge for die setting and line casting machines with protective sheet : de en
  • FR753495A - Improvements to beams, trusses and similar metal building elements : en fr
  • US1931146A - Foot-exercising device : en
  • US1931312A - Pillow speaker : en
  • US1930898A - Program transmission : en
  • US1931143A - Lathe attachment : en
  • USRE18970E - Zeolite water softenei : en
  • GB400064A - Improvements relating to electric fluid temperature maintainers for use with dental syringes : en
  • GB400246A - Improvements relating to the control of the flow of current in electric circuits : en
  • US1930709A - Method of dressing barytes ore : en
  • ES130973A3 - A method of making wooden items. : en es
  • GB399877A - Improvements in or relating to firing switches for submarine mines : en
  • GB400157A - Improvements in or relating to elevator installations : en
  • US1930894A - Valve spring seat and retainer : en
  • ES1541Y - Theft isolating device for safes applicable to all brands and sizes that are desired. : en es
  • GB400114A - Improvements in and relating to buttonhole sewing machines : en
  • USD90884S - Design for a coffee maker : en
  • FR753596A - Sewer anti-reflux device : en fr
  • GB400084A - Improved timing mechanism for the operation of valves and like members : en
  • DE586236C - Process for the production of vesicular porous masses and objects using gas-releasing substances : de en
  • US1931073A - Antifriction bearing : en
  • FR753585A - Floating crane pontoon : en fr
  • GB400026A - Improvements in or relating to aluminium and aluminium base alloys : en
  • US1930926A - Connection for electrical appliances : en
  • FR753514A - : fr
  • FR753568A - Electric brake control for all vehicles : en fr
  • GB400113A - Improvements in or relating to windshield wipers : en
  • DE586039C - Slotting machine with knife lifting device in which the knife insert is rotatably mounted on the ram : de en
  • FR753443A - Improvements to sinks : en fr
  • US1930700A - x p pilot - : en
  • US1930819A - Knitting machine : en
  • DE586220C - Extruded mouthpiece for the production of multi-hole bricks : de en
  • FR753620A - Improvements to threshing machines : en fr
  • US1931076A - Coffee maker : en
  • FR753665A - Thread tensioner device : en fr
  • GB400136A - Mechanism for actuating the slay of weaving looms : en
  • DE506966C - Die stamping press : de en
  • DE586225C - Process for the production of rotating coils, in particular from enameled wire, for electrical measuring devices : de en
  • GB400015A - Improvements in means for securing sliding clasp fasteners in the closed condition : en
  • DE586469C - Electric flashlight : de en
  • GB400126A - Improvements in or relating to the construction of envelopes : en
  • AU1135633A - Improvements in steam separators : en
  • CA336493A - Oil fractionating system : en fr
  • FR753638A - Process for the simultaneous manufacture of ammonia phosphate and a calcium salt, for example nitrate : en fr
  • US1931092A - Method and apparatus for making pile fabrics : en
  • US1931135A - Steam purifier : en
  • US1930512A - Elevator control system : en
  • US1930979A - Regulating system for alternating current circuits : en
  • US1930734A - Sheet metal clip : en
  • US1930856A - Structural building frame : en
  • DE586182C - Gas generator for fine-grain and dust-like fuels : de en
  • US1930807A - Printing device : en
  • US1930632A - Roofing cleat : en
  • US1931144A - Treatment of metals : en
  • US1931273A - Melting pot for type-forming machines : en
  • USD90883S - Design for a lady s ensemble dress : en
  • CA336429A - Hoist : en fr
  • US1930793A - Antiskid device : en
  • USD90894S - Design for a textile fabric or : en
  • DE586287C - Feeding device on automatic scales : de en
  • CA336441A - Mesityl oxide and homologue production : en fr
  • GB400004A - Improvements in and relating to cigarette tubes and the production thereof : en
  • US1930741A - Folding table : en
  • US1931172A - Stoker : en
  • FR753508A - Method of attaching jewelry to their frame : en fr
  • ES1627Y - Protective device for the "bigoudis" hair lighters for curling or permanent waving. : en es
  • US1931379A - Carburetor : en
  • FR753676A - Method and device for recovering the living force of the exhaust gases, in internal combustion engines : en fr
  • AU956332A - Improvements in or relating to electrical glow discharge lamps : en
  • CA336381A - Harness trace hook : en fr
  • DK47888C - Procedure for impregnating cork plugs, cork discs and the like. : da en
  • DE586181C - Compressed gas burner : de en
  • GB400148A - Improvements in or relating to windscreens for vehicles : en
  • GB399903A - An adapter to enable dope, paints and the like to be used from their original containers : en
  • GB399936A - Improvements in or relating to the treatment of flexible flongs used in printing : en
  • US1930514A - Two-button multicall control system : en
  • ES131702A1 - Carbon paper manufacturing process. : en es
  • US1931063A - Signal transmission system : en
  • US1931454A - Conveying mechanism : en
  • DE586219C - Press head with tongue for briquette extrusion : de en
  • FR753433A - Device for excitation of vibrations by means of tuned vibrating bodies, for example by means of tuning forks : en fr
  • US1931137A - Retractable landing gear : en
  • FR753604A - Process to prevent tarnishing or alteration of glass in tables of all kinds : en fr
  • DE584669C - Protection device on motor vehicles against insects, dust or the like. : de en
  • DE586463C - Magnetic spark extinguishing device for electric roller switches : de en
  • US1931181A - Domestic stoker : en
  • US1931156A - Ventilator : en
  • US1931277A - Watch : en
  • DE586068C - Process for the preparation of nitrogen-containing derivatives of anthracene : de en
  • GB399889A - Improvements in or relating to reciprocating machine saws : en
  • GB400138A - Improvements in radial flow turbines : en
  • FR753477A - Advanced awning, winch and crank control : en fr
  • GB400166A - Improved side wing structure for hopper or like vents for windows : en
  • GB400214A - Improvements in and relating to the production of separation negatives in regular pattern colour screen processes : en
  • DE586093C - Self-opening switch with overcurrent release and reclosing device : de en
  • FR753409A - Improvements to hydraulic energy dispersal devices, such as shock absorbers, dash-pots, and others : en fr
  • US1931167A - Pneumatic tool : en
  • FR753442A - Manufacturing process of metal elements for slide closures : en fr
  • GB399871A - Improvements in or relating to the manufacture of products containing rubber-bonded fibres which normally coagulate rubber latex : en
  • DE586381C - Electric heating cartridge : de en
  • FR753520A - Improvements to writing instruments : en fr
  • US1930995A - Method of manufacturing celluloid tubing : en
  • DE586214C - Immersion vessel for ink, ink bottles, etc. like : de en
  • FR753505A - Gear shift mechanism, especially for motor vehicles : en fr
  • ES1562Y - Improved plug needle. : en es
  • DE586139C - Steering device for motor vehicles with steering wheels guided on front cranks : de en
  • GB399985A - Separable fasteners and installations thereof : en
  • FR753667A - Safety lock, more particularly applicable to the inviolability of cash drawers or other : en fr
  • GB400025A - Improvements in or relating to radio and like transmitters and generators : en
  • FR753683A - Process for the preparation of iron carbonyl : en fr
  • GB399899A - Improvements in or relating to coin-freed vending machines : en
  • GB399929A - Improvements in or relating to air-presses : en
  • US1930464A - Crimping machine : en
  • US1931011A - Clinch-on nut : en
  • USD90866S - Design for a chaise longue : en
  • GB400037A - Improvements relating to sprag gear mechanism : en
  • US1930504A - Illuminated whistle : en
  • US1930531A - Latch : en
  • US1931404A - Garage door opening device : en
  • GB399863A - Improvements in volumetric displacement meters : en
  • US1930859A - Means for removing spindles and cups from bicycle bearings and the like : en
  • DK47877C - Device for Cat Eyes for Bicycles. : da en
  • DE586307C - Cleaning device for drinking vessels : de en
  • FR753408A - Quick mooring device for lifting submarines : en fr
  • GB400594A - Electric tachometer : en
  • ES1542Y - Hand-held retreading device that works with the current of the car battery. : en es
  • FR753565A - Simultaneous lifting of the two tubes on a straw lifter on a trolley : en fr
  • GB400161A - Improvements in and relating to electric discharge apparatus : en
  • FR753677A - Mechanical automatic door closing device : en fr
  • GB399900A - Improvements in or relating to dough mixing and kneading machines : en
  • US1930729A - Method of making brake hangers : en
  • DE586179C - Device for automatic regulation of the temperature of electrical resistance ovens : de en
  • DE586276C - Electric vacuum cleaner : de en
  • GB399973A - Improvements in the anode insulation of mercury vapour rectifiers : en
  • GB400175A - Improvements in combined gumming, numbering and perforating machines : en
  • FR753550A - Improvements to grinders : en fr
  • FR753475A - Carabiner holder : en fr
  • US1930785A - Vanity case : en
  • US1930594A - Fused disconnecting plug : en
  • US1930972A - Eye protector : en
  • US1931101A - Clamping device : en
  • US1931287A - Record : en
  • US1931315A - Strip material and method of making the same : en
  • FR753574A - Submersible machine : en fr
  • GB399968A - Improvements in and relating to saucepans and like vessels : en
  • DE586280C - Large house with small apartments accessible through external walkways : de en
  • GB400008A - Improvements in and relating to closures for cans and like containers : en
  • DE585877C - Device for fastening the piston rod to the cross head of piston engines : de en
  • DE586232C - Procedure for sharpening files : de en
  • FR753622A - Process and apparatus for the manufacture in a rotary kiln of iron or its carburized compounds and portland cements : en fr
  • GB400027A - Improvements relating to the production of the metal elements of sliding clasp fastener strips : en
  • USD90898S - Design for a radiator ornament : en
  • DE586171C - Putty-free and one-piece contact line insulator : de en
  • US1930936A - Signaling device for automotive vehicles : en
  • US1930565A - Metal working press : en
  • US1931261A - Grain door : en
  • US1930847A - Method and apparatus for welding : en
  • US1930553A - Hydraulic valve gear : en
  • US1931040A - Valve mechanism for fluid pressure tools : en
  • US1931365A - Machine for forming diagonally corrugated board : en
  • US1930794A - Ventilating fan : en
  • US1930831A - Moisture or consistency indicator : en
  • US1931016A - Lubricating chart holder and display apparatus : en
  • DE586145C - Spring swing board (trampoline) for gymnastics purposes : de en
  • FR753545A - Automatic starting control device for internal combustion engines : en fr
  • FR753661A - Tempered glass disc for talking machines and manufacturing process : en fr
  • GB399869A - An improved apparatus for feeding, shaping and cutting plastic material, such as soft toffee or the like : en
  • GB399938A - A new or improved preservative agent against moths and the like and a method of manufacture thereof : en
  • CA336463A - Ore roasting apparatus : en fr
  • US1930619A - Bogie construction : en
  • US1931231A - Self-adjusting angular crank shaft and bearing : en
  • DE586464C - Contact arrangement for electrical switches : de en
  • DE586419C - Gluing press for footwear : de en
  • GB399873A - Improvements in or relating to statistical apparatus : en
  • CA336418A - Ditching and excavating machine : en fr
  • US1931348A - Safety dust guard : en
  • US1930714A - Inductance connecter : en
  • US1931202A - Method of tying mattresses : en
  • US1930572A - Process of treating and using adsorptive surfaces : en
  • US1930749A - Coloring material apparatus : en
  • US1930824A - Automatic door opener : en
  • US1931449A - Lifting truck : en
  • US1930522A - Multioffice automatic telephone system : en
  • US1930826A - Process for reproducing the surface of plates : en
  • DE586380C - Process for the production of molded bodies, in particular from wood : de en
  • CA336384A - Gas purification device : en fr
  • US1930923A - Alkyl ortho-cresol : en
  • US1931443A - Hairpin : en
  • US1930573A - Instrument panel embodying theft foil for valuables : en
  • US1930740A - Process and product for lining walls and other surfaces : en
  • US1931198A - Compressor discharge valve : en
  • US1931042A - Fluid pressure hammer : en
  • DK47892C - Sails for self-binding Mowers. : da en
  • GB399961A - Improvements in and relating to cathode ray tube apparatus : en
  • GB399991A - A process for the chlorination of paraffin and/or aromatic hydrocarbons : en
  • AU1486033A - Braun valves : en
  • CA336415A - Bottle closure : en fr
  • DE586162C - Manufacture of carbonyl compounds of nickel, cobalt, molybdenum and tungsten : de en
  • US1931020A - Glare shield : en
  • ES1540Y - Burglar alarm explosives trigger. : en es
  • FR753525A - Gearbox : en fr
  • IE12615L - Basic alum manufacture : en
  • US1930568A - Hydraulic valve mechanism : en
  • DE586481C - Guide fitting for adjustable deck chairs : de en
  • GB400003A - Improvements in door handles : en
  • USD90865S - Design for a knitted fabric or like : en
  • AU1045932A - Improvements in radio receiver dials : en
  • CA336499A - Lock : en fr
  • DE586304C - Check valve for pipelines, especially as a starting device for centrifugal pumps : de en
  • DE586511C - Hydraulic clamping mechanism for pipes : de en
  • US1931065A - Clutch member : en
  • DE586083C - Method for transmitting or recording acoustic vibrations : de en
  • DE586159C - Device for processing urban garbage, carbon-containing and fuel-containing substances, or the like. : de en
  • US1930596A - Method of preparing soles for boots and shoes : en
  • US1931326A - Collar button : en
  • USRE18969E - Surge pressure controujng means : en
  • GB400097A - Improvements in and relating to harpoons : en
  • US1930479A - Dewaxing of oil : en
  • US1930762A - Stripping device for punch presses and the like : en
  • US1930994A - System and method for heating dynamo-electric machines : en
  • US1930524A - Power tube supporting structure : en
  • US1930941A - Ice cream attachment and mixer for mechanical refrigerators : en
  • US1930773A - Shelf for refrigerators, show cases, and the like : en
  • US1931165A - Suction cleaning apparatus : en
  • US1931409A - Method for making moisture resisting decorated panned candy : en
  • US1931420A - Machine for making metal binding strips : en
  • US1930695A - Cushioning device : en
  • DE586063C - Antifreeze : de en
  • US1930871A - Calculating machine : en
  • US1931003A - Water heater : en
  • US1930722A - Railway switch operating apparatus : en
  • US1930813A - Forearm extension splint : en
  • NL31090C - : en
  • US1930476A - Line separator and grader : en
  • US1930550A - Reproduction by contact of films with refracting microscopic elements : en
  • US1930927A - Electrical fitting : en
  • US1930821A - Tube cream dispenser : en
  • US1930863A - Orchard heater : en
  • US1931418A - Stringed musical instrument : en
  • DE586379C - Fence bolt holder : de en
  • CA336482A - Acoustic device : en fr
  • DE586234C - Device for applying adhesives : de en
  • US1930991A - Barrel construction : en
  • US1931304A - Holder for eggs and the like : en
  • US1931141A - Endless chain elevator and conveyer : en
  • US1931281A - Furnace stoker : en
  • US1930650A - Journal box lid : en
  • US1930725A - Window lock : en
  • GB400083A - Improvements in cooling devices for the anodes of metal vapour rectifiers : en
  • DE586092C - Time switch : de en
  • US1930489A - Skiving machine : en
  • US1931475A - Vacuum circuit breaker : en
  • US1931149A - Railway braking apparatus : en
  • GB399895A - Improvements in artificial teeth : en
  • IE13375L - Packing for axle bearings : en
  • US1930617A - Indexed drill cabinet : en
  • US1930925A - Dressing table and mirror therefor : en
  • US1931437A - Jewelry clasp : en
  • DE586166C - Casting pot of a die setting and line casting machine with a horizontally arranged pump : de en
  • GB400043A - Improvements in stair carpet holders : en
  • US1931341A - Shoe dauber : en
  • CA336421A - Measuring device : en fr
  • FR753486A - High voltage winding armatures : en fr
  • GB400109A - Improvements in methods of and apparatus for working glass : en
  • DE586119C - Four-stroke diesel engine with a common inlet and outlet valve, in particular with airless fuel injection : de en
  • DE586158C - Device for regulating the peripheral speed of the roughing rollers on roughing machines : de en
  • DE586466C - Arrangement for the independent delayed triggering of switching devices in selective protection circuits : de en
  • FR753541A - Process for ensuring the waterproofing of dikes, dams and similar works : en fr
  • GB400056A - Table article for holding a portion of cut grape-fruit : en
  • US1930697A - Spring cushion structure : en
  • US1931243A - Method of securing bushing mountings for metallic drums : en
  • DE586484C - Roof hook : de en
  • US1930485A - Circuit breaking mechanism : en
  • US1930549A - Servo-brake : en
  • DE569143C - Device for wet treatment, in particular for washing and weighing down wide-spread silk fabrics or knitted fabrics : de en
  • GB399894A - Improvements in and relating to magneto-electric machines : en
  • GB400924A - Improvements in building construction and method of electrically wiring a building : en
  • DE586370C - Process for the production of grinding and cutting tools, in particular for dental purposes : de en
  • DE586353C - Process for the preparation of tetrazo compounds : de en
  • FR753672A - Process for the preliminary treatment of aluminum and its alloys for electroplating operations and applications of this process : en fr
  • FR753493A - Device for scoring points : en fr
  • US1930579A - Apparatus for treating heels : en
  • US1931182A - Clutch : en
  • US1930772A - Electrical cable connecter : en
  • US1931288A - Transmission mechanism : en
  • DK47871C - Device by tilting cranes. : da en
  • FR753628A - Process for preparing emulsions of oils for sizing natural or artificial textile fibers : en fr
  • GB400281A - Method of and apparatus for moulding materials : en
  • FR753450A - Folding and removable frame to support the protective bags of transportable clothing : en fr
  • GB400063A - Closing device for interchangeable bins or containers for the deposit and transport of house refuse and other materials : en
  • GB400156A - Sanitary belt and pad shield : en
  • DE586206C - Collapsible reflex camera : de en
  • DE586036C - United adjustment device for the brakes and the gas supply on motor vehicles : de en
  • FR753496A - Improvements to hydraulic brakes : en fr
  • US1931051A - Roller raceway for braiding machine bobbin carriers : en
  • USD90887S - Design fob a bed : en
  • US1931113A - Aligning means for registering : en
  • DE586084C - Arrangement for the constant frequency coupling of amplifier stages : de en
  • US1930860A - Locomotive attachment : en
  • US1931120A - Frying apparatus : en
  • US1930530A - Welding electrode : en
  • US1930848A - Apparatus for injecting liquid material into gases : en
  • DE586410C - Control device for aircraft : de en
  • FR753445A - New application of overlockers and stitchers to obtain a chain constituting a new product : en fr
  • GB400232A - Improvements relating to apparatus for feeding wire and the like : en
  • US1930753A - Chlorination of cresidine : en
  • US1930595A - Metal awning : en
  • US1930948A - Mixer : en
  • DE586283C - Process for the production of microporous cellular rubber : de en
  • US1930736A - Method of and apparatus for treating rubber : en
  • US1930838A - Loose leaf card file : en
  • US1931248A - Mulching product and method of producing and using the same : en
  • FR753438A - Process for the preparation of oxidized ores, with a view to their hydrometallurgical treatment : en fr
  • CA336393A - Mechanical transmission : en fr
  • DK47872C - Folding Headrest. : da en
  • US1930637A - Thread-cutting mechanism for sewing machines : en
  • US1930878A - Cable releasing clamp : en
  • US1931476A - Hydraulic valve lash adjusting mechanism : en
  • US1931324A - Glove lining form : en
  • GB400206A - Improvements in and relating to electric regulators : en
  • GB400921A - Improvements in the manufacture and production of water-soluble azo dyestuffs : en
  • GB400642A - Improvements in or relating to locking devices for motor vehicles : en
  • FR753692A - Process for the removal of harmful constituents, more particularly chlorogenic acid, contained in coffee beans : en fr
  • US1931086A - Waste pipe plug : en
  • FR753688A - Improvements to electro-acoustic distribution systems and related devices : en fr
  • GB400235A - Improvements in or relating to insulated electrical cables : en
  • DE586030C - Goods demonstration device : de en
  • ES1551Y - Improvements in paper or cardboard tubes for winding threads. : en es
  • US1931337A - Wheat shocker : en
  • US1930701A - Draft gear : en
  • AU1023932A - Magnetic valve : en
  • CA336478A - Cleansing tissue compact : en fr
  • GB400236A - Improvements in and relating to electric transformers : en
  • DE583812C - Egg stamping device assembled with a candling device and a sorting device : de en
  • FR753483A - Double flange sheet piles and method for their manufacture : en fr
  • FR753742A - : fr
  • GB399940A - Improvements in or relating to the manufacture of rubber compositions : en
  • GB400641A - Double faced floor tool for vacuum cleaning system : en
  • US1930566A - Flame baffle for pulverized fuel furnaces : en
  • US1931320A - Valve for corrosive liquids : en
  • DE586315C - Device for the immediate removal of the contours of the human foot : de en
  • ES131692A1 - Improvement in rotating wastewater distributors. : en es
  • DK47883C - Device at Spareure with Calendar mechanism. : da en
  • US1930484A - Method of applying upholstery or the like : en
  • US1931325A - Treatment of living plant surfaces : en
  • ES1712U - Device to avoid the projection of mud and splashes by the wheels of the vehicles of mechanical traction. (Machine-translation by Google Translate, not legally binding) : en es
  • US1931179A - Means for traversing or laying threads, filaments, and the like : en
  • US1931431A - Lubricating and guiding means for spinning mechanisms : en
  • DE586059C - Method and device for the production of patterned dobby and jacquard leno fabrics : de en
  • US1930593A - Valve controlling mechanism : en
  • US1931173A - Sight opening for oil burning furnaces : en
  • US1930853A - Production of dispersions : en
  • US1931350A - Traffic control system : en
  • US1930649A - Electric arc welding electrode : en
  • US1930854A - Cigarette case : en
  • CA336388A - Tire armour : en fr
  • US1931334A - Safety appliance for gas or electric ranges : en
  • US1930852A - Slide rule : en
  • US1930900A - Elevator control apparatus : en
  • US1931455A - Dielectric materials for electrical devices : en
  • DE570569C - air cleaner : de en
  • US1930629A - Device for testing the consistency of liquids : en
  • US1930825A - Combination swedge : en
  • US1930912A - Sound reproducer : en
  • US1931245A - Process of treating artificial thread : en
  • US1931250A - Electric welding appliance : en
  • CA336455A - Cylinder printing press apparatus : en fr
  • DE586102C - Method and circular knitting machine for transferring the knitted fabric from the needles of the machine to an opening comb : de en
  • GB399924A - Improvements in and relating to electric motor control systems : en
  • GB399864A - Improvements in and relating to voltage regulators for dynamoelectric machines : en
  • CA336448A - Oil hydrogenation : en fr
  • ES131235A1 - Machine to print explanatory texts about cinematographic films. : en es
  • DE584372C - Process for the preparation of ª † -lactones : de en
  • US1930692A - Nut cracker : en
  • US1931075A - Propeller drive for outboard motors : en
  • DE586441C - Sound recording device with intermediate reflectors for sound transmission from the recording means to the listening point : de en
  • FR753488A - Automatic regulator of pneumatic purification tables : en fr
  • GB399913A - Improvements in or relating to shuttle guards for weaving looms : en
  • ES131698A1 - Improvements in the printing or electrical recording of sound. : en es
  • GB400922A - Improvements in the manufacture and production of water-soluble azo dye-stuffs : en
  • CA336396A - Telephone hygienic appliance : en fr
  • CA336405A - Cheese slicing machine : en fr
  • GB400047A - Improvements in or relating to outer casings for inflatable bladders : en
  • US1930858A - Manufacture of tertiary alkylolarylamines : en
  • US1931001A - Process and apparatus for producing continuous zinc wire : en
  • US1931397A - Collapsible shipping container : en
  • USD90903S - Design fob a cosmetic jab ob : en
  • DE586289C - Device for recording acoustic performances : de en
  • US1931446A - Caster : en
  • GB399904A - Improvements in terminal connections for electric cables : en
  • DE586454C - Method for the brightness modulation of the Braun oscillograph for television purposes and image telegraphy : de en
  • ES1619Y - Hollow brick. : en es
  • GB399999A - Improvements in apparatus for teaching card games : en
  • DE586134C - Camera, especially for multi-color photography, for the simultaneous recording of several partial images : de en
  • CA336430A - Stoker : en fr
  • ES131681A1 - Improvements in selective receivers with automatic volume control. : en es
  • GB400133A - Ink ribbon raising and colour changing mechanism for typewriters : en
  • FR753626A - Improvements in the manufacture of horsehair or other rubberized fibers : en fr
  • FR753631A - Improvements in electrical machinery of automotive equipment : en fr
  • USD90904S - Design for a tire cover or similar : en
  • DE586229C - Method and device for the photographic recording of electrical current fluctuations : de en
  • US1931376A - Combined container and christmas tree holder : en
  • US1931266A - Process of treating artificial threads : en
  • DE586090C - Arrangement of tear wires that are used to remove the temporary lead sheath from cables : de en
  • DE586191C - Music chair with a seat that can be adjusted in height by rotating on rising guide tracks : de en
  • GB399926A - Improvements in propelling mechanism for cycles and like vehicles : en
  • GB400005A - A sound producing instrument : en
  • AU1019032A - Improved stamper : en
  • DE586164C - Touch panel of a die setting and line casting machine that can be pulled out horizontally from its working position on rails : de en
  • DE585919C - Photographic camera with a viewfinder chamber above the receiving chamber : de en
  • FR753455A - Boiler for central heating suitable for kitchen stoves : en fr
  • GB400020A - Improvements in or relating to electric furnaces : en
  • NL31087C - : en
  • US1930467A - Material handling apparatus : en
  • DE586297C - Beat mills equipped with beaters sitting on a disc : de en
  • DE586325C - Briquetting device for metal chips : de en
  • CA336411A - Bread making machine : en fr
  • USD90897S - Design for a game device : en
  • AU863032A - Improvement in cementitious tubs : en
  • AU1043332A - Improvements in or relating to braking of moving devices or apparatus particularly winding, hoisting, hauling and like gear : en
  • GB399974A - Improvements in or relating to film reels : en
  • GB400243A - Method of preparing and molding materials : en
  • GB400034A - Process of effecting circulation in diffusion batteries for extracting sugar from raw materials such as beet and sugar cane : en
  • GB399901A - Improvements in and relating to spanners : en
  • FR753606A - Multicellular exhaust for internal combustion engines and the like : en fr
  • US1930744A - Process for the simultaneous manufacture of dicalcium phosphate and of ammonium chloride : en
  • DE564847C - Rubber tires for vehicle wheels : de en
  • DE565850C - Method for making groove tone recordings : de en
  • NL31116C - : en
  • US1931426A - Steam generating apparatus : en
  • US1930468A - Purification of crude paraffin wax : en
  • US1930715A - Spring assembling machine : en
  • US1930946A - Driving and controlling mechanism : en
  • US1931395A - Substituted guanidine salts of fatty acids, and process of producing same : en
  • US1931471A - Method of harvesting lettuce seed : en
  • GB400090A - Improvements in advertising apparatus : en
  • DE586028C - Method and device for pre-breaking the closure part of paper vessels : de en
  • US1930626A - Crown block assembly : en
  • DE573945C - Piano or similar keyboard instrument with a switchable tremolating device : de en
  • CA336400A - Ticket issuing machine : en fr
  • DE586221C - Drive mechanism for clocks with jumping digits : de en
  • GB399955A - Improvements in ganged and other condensers and other elements of radio communication apparatus : en
  • DK47881C - Scene control for sleds for electric projector lamps and the like. : da en
  • DE586407C - Drive device for optical sound film reproducing machines : de en
  • DE586465C - Electrical selective protection circuit for alternating current networks with distance time relay : de en
  • DE586211C - Device for switching transfer cases, in particular for motor vehicles : de en
  • DE586390C - Fuel injection pump for internal combustion engines : de en
  • GB400239A - Improvements in stripping dyed textiles : en
  • US1930562A - Method and apparatus for forming smoothly rounded can bodies : en
  • US1931062A - Paper making machinery : en
  • DE586285C - Adjustment device for the production of coaxial holes or holes offset by a certain amount : de en
  • GB400151A - Pantograph current collectors for electric railways and the like : en
  • US1931097A - Electrical regulating system : en
  • FR753412A - Electrical spring contact system and its applications : en fr
  • DE586160C - Device for holding loosely lined up U-shaped staples on a carrier : de en
  • DE586242C - Device for lifting sheet metal from a stack and for feeding, especially for sheet metal working machines : de en
  • US1931346A - Line fastener : en
  • DE586237C - Process to increase the filterability of raw cement sludge : de en
  • FR753554A - Artillery Wheel and Artillery Wheel Body Improvements : en fr
  • DE586506C - Process for the transfer of easily dewaterable alkali salt hydrates into spherical form : de en
  • FR753594A - Threshing machines : en fr
  • DE586200C - Automatic goods dispenser for inserting money with a compartment-shaped plate : de en
  • FR753633A - Tie stand : en fr
  • US1931433A - Bottle capping apparatus : en
  • GB400067A - Improvements in the manufacture of pressure vessels : en
  • FR753613A - Woven ribbons and articles made from such ribbons : en fr
  • US1930724A - Electrical condenser : en
  • GB399862A - Improvements in air pre-heaters for furnaces and similar heatexchanging devices : en
  • GB400607A - Improvements in apparatus for producing electric sparks for use in spectrum analysis : en
  • GB400002A - Improvements in and relating to the renewal of webs in printing or other machines : en
  • US1930921A - Telephone system : en
  • DE586155C - Adjustment device for the suction throttle valve, for the ignition adjustment and the fuel supply to internal combustion engines : de en
  • FR753612A - Improvements to sound film tapes : en fr
  • GB400103A - Improvements in microscope stands : en
  • FR753700A - Electric safety plug : en fr
  • ES1918U - An edge or strip of clichº for multicopistas that allows the inintado fast and safe of the roller impresor (Machine-translation by Google Translate, not legally binding) : en es
  • GB400160A - Change speed gears for motor cars and the like : en
  • DE586251C - Rotary rubber printing machine for producing proofs, deep-colored art print sheets, etc. like : de en
  • ES1076Y - Container for liquids, especially fresh milk. : en es
  • DE586482C - Furniture foot with a roller that can be switched on and off by moving it vertically : de en
  • DE586223C - Bunsen tube burner : de en
  • US1930486A - Industrial truck : en
  • US1930490A - Checking device : en
  • US1931296A - Fertilizer : en
  • CA336469A - Rock drill : en fr
  • US1931432A - Apparatus for launching a lifeboat : en
  • ES130355A3 - A device for practicing the sport of car racing on an electrified track. : en es
  • FR753673A - Improvements to shock absorbing devices used to improve vehicle suspension : en fr
  • DE586071C - Device for controlling prime movers : de en
  • US1930506A - Valve : en
  • US1930554A - Hydraulic valve mechanism : en
  • GB399990A - Improvements in or relating to remote controlled locks for doors : en
  • GB399880A - Improvements in and connected with lamp reflectors : en
  • GB399950A - Improvements in and relating to containers made from synthetic resins : en
  • NL30966C - : en
  • DE586404C - Containers for photographic apparatus : de en
  • ES131695A1 - A percussion fuze. : en es
  • FR753668A - Bill of materials for public roads : en fr
  • GB400081A - Adjustable holding cheeks for snow shoes : en
  • US1931208A - Bracket for connecter heads : en
  • US1931444A - Vehicle washing and polishing apparatus : en
  • ES1866U - A device for the improvement of the racordes with coupling or bayonet coupling (Machine-translation by Google Translate, not legally binding) : en es
  • GB400085A - Improvements in or relating to means for indicating the position and route of submerged submarines : en
  • DE586274C - Device on hospital beds : de en
  • DE586308C - Gravity davit : de en
  • US1930477A - Ball striking mallet : en
  • US1930990A - Process for making japanned metallic tiles : en
  • CA336442A - Ornamented and waterproof wallboard : en fr
  • US1930538A - Motor starting system : en
  • US1930966A - Incubator : en
  • US1930827A - Air control mechanism : en
  • US1931393A - Washing apparatus : en
  • GB399947A - Improvements in or relating to photographic cameras convertible to projectors : en
  • US1931124A - Bracelet chain : en
  • US1930760A - Combined closure operator and latch : en
  • US1931005A - Automatic sorting machine : en
  • US1930755A - Needle making machine : en
  • US1931034A - Machine for handling strip material : en
  • AU1024032A - Magnetic structure : en
  • US1930981A - Furring and applying device : en
  • US1930814A - Powdering apparatus : en
  • CA336495A - Snap fastener stud : en fr
  • US1930799A - Printing device : en
  • CA336496A - Ferromagnetic alloy processing : en fr
  • DE586291C - Rotary piston internal combustion engine : de en
  • US1930806A - Apparatus for separating suspended particles from gases : en
  • DE586149C - Device for forming a weaver knot, especially for chain tying machines : de en
  • ES1520Y - Metallic sugar case. : en es
  • FR753410A - Improvements to brake linings for all applications : en fr
  • GB400237A - Improvements in or relating to the regulation of machines working in parallel : en
  • US1930600A - Diaphragm coil and terminal support : en
  • US1930913A - Film editing machine : en
  • US1931417A - Retort : en
  • US1930942A - Outing equipment : en
  • US1930951A - Partition tile construction : en
  • GB400078A - Improvements in and relating to frictional devices for washing and cleaning the person : en
  • US1931118A - Supporting stand for business machines : en
  • DE586130C - Camera, in particular roll film camera : de en
  • DE586408C - Optical guide for the purposes of post-synchronization : de en
  • CA336438A - Motor benzol : en fr
  • FR753680A - Improvements to valve devices used to prevent draining of siphons in plumbing fixtures : en fr
  • GB400154A - Improvements in and relating to the treatment of oxide coatings on aluminium and aluminium alloys : en
  • DE586453C - Encryption apparatus, especially for type printers : de en
  • US1930702A - Tube mill : en
  • US1930917A - Safety device for cross roads and hills : en
  • FR753679A - Fan for solar powered helmets : en fr
  • US1930792A - Process of treating liquids : en
  • US1930830A - Water heater : en
  • US1930881A - Manufacture of highly concentrated nitric acid : en
  • US1930599A - Wood heel machine : en
  • AU1147233A - Advertising device : en
  • US1930915A - Acoustic device : en
  • CA336483A - Oven lighter : en fr
  • DE586371C - Process for the production of colloidal calcium citrate : de en
  • US1931151A - Method of making annular metallic structures : en
  • DE586316C - Machine for applying an adhesive to the edge of an outsole : de en
  • GB400593A - Improvements in and relating to the refining of iron and steel : en
  • CY36A - Recovery of sulphur : en
  • DE586212C - Direction indicators : de en
  • GB400028A - Improvements in light transmitting covers for light sources : en
  • GB400029A - Improvements in light mixing apparatus : en
  • US1930963A - Container and method of making same : en
  • US1931023A - Fabric and method of making the same : en
  • US1931110A - Rubber coated fabric : en
  • FR753489A - Automatic machine for changing bobbins for looms with several shuttles : en fr
  • US1931373A - Dielectric material fob electrical : en
  • CA336481A - Loud speaker : en fr
  • DE586043C - Reversible shoe sewing machine : de en
  • GB400210A - Plate clutches : en
  • FR753407A - Continuous sounding device : en fr
  • FR753572A - Can : en fr
  • US1930937A - Cherry pitting machine : en
  • FR753472A - Cylindrical basin melting furnace for glassworks, enamelling and similar industries : en fr
  • GB400088A - Improvements in or relating to tank stabilising installations for ships : en
  • US1931424A - End cap for golf club grips : en
  • NL31393C - : en
  • US1931215A - Internal combustion engine : en
  • US1931080A - Spare wheel carrier and lock : en
  • US1930515A - Soot blower : en
  • US1930688A - Boiler : en
  • US1931286A - Spectacle holder : en
  • US1931394A - Process for the vulcanization of rubber : en
  • AU1116133A - Improvements relating togas heated apparatus for heating air or water : en
  • CA336450A - Automatic phonograph : en fr
  • US1931018A - Manufacture of cement products : en
  • CA10121S - Glass bottle : en
  • US1930845A - Preparation of aqueous dispersions : en
  • US1931211A - Chopping machine : en
  • FR753507A - Improvements to calculating scales : en fr
  • GB400052A - Improvements in and relating to flexible disc couplings : en
  • DE586198C - Printing unit for addition and other calculating machines : de en
  • CA336436A - Engine governor linkage : en fr
  • DE586207C - Photographic copier : de en
  • DE586331C - Process for the production of plaster of paris : de en
  • US1931361A - Equalizer for vehicle springs : en
  • US1930801A - Window frame : en
  • US1930597A - Apparatus for refining liquids : en
  • US1930521A - Pressure responsive device : en
  • US1930625A - Capping machine : en
  • US1930833A - Swiveling hose union : en
  • US1931331A - Garment : en
  • US1931212A - Sink construction : en
  • AU1159033A - Improvements in advertising and like devices : en
  • ES131636A1 - A perfect set of tenacilla for the treatment of the eyelashes and especially to wave them. : en es
  • US1930474A - Process for making water soluble disinfectants : en
  • US1930790A - Latching mechanism : en
  • FR753651A - Process and apparatus for the manufacture of carbon papers and carbonaceous formulas : en fr
  • GB400038A - Improvements in and relating to light mixing apparatus : en
  • US1931072A - Asphaltic emulsion : en
  • CA336398A - Combined seal and label : en fr
  • US1931013A - Relay system : en
  • US1931039A - Carburetor air supplying system : en
  • US1931163A - Method of making hub shells and like tubular metal articles : en
  • US1931406A - Buoyant life preserver : en
  • US1930828A - Safety device for motor vehicles : en
  • DE586045C - Multiple folding card or letter : de en
  • ES131266A1 - Perfections introduced in the pistons. : en es
  • US1931241A - Transmission mechanism : en
  • CA336432A - Extractor unloading net : en fr
  • DE586333C - Decorative artificial stone : de en
  • FR753515A - Skill game with balls : en fr
  • GB400579A - Improvements in and relating to boiler and the like furnaces : en
  • FR753607A - Carburetor : en fr
  • US1931470A - Display package and clamp device therefor : en
  • DK47867C - Device for footwear. : da en
  • AU952032A - Draw bar and coupling for lawn mowers : en
  • US1930659A - Dust bag : en
  • US1930539A - Thermal control device : en
  • CA336500A - Fuel pump : en fr
  • US1931401A - Eight cylinder radial motor : en
  • US1930761A - Flasher : en
  • US1931246A - Filling and capping machine : en
  • US1931382A - Typewriting machine : en
  • US1930643A - Combination harvester-thresher : en
  • US1930791A - Stoker transmission : en
  • US1931166A - Door brace and guide mechanism : en
  • US1931396A - Process of vulcanizing rubber : en
  • US1930644A - Bathing suit of the one-piece kind : en
  • US1930652A - Clasp : en
  • US1930731A - Method and apparatus for transferring liquid material : en
  • US1930804A - Fuse : en
  • US1931411A - Fire extinguisher : en
  • DE586284C - Process for the extraction of platinum and its accessory metals : de en
  • US1930487A - Machine for effecting relative movement of shoes and lasts : en
  • US1930885A - Process for the treatment of hard waters : en
  • US1931111A - Electrical control system : en
  • DE586334C - Pressing device for pressing tobacco packages or similar goods : de en
  • GB399870A - Improvements in or relating to rubber-bonded asbestos products and method of making same : en
  • GB400635A - An arrangement for converting the frequency of alternating current by means of controlled arc rectifiers : en
  • CA336390A - Speed gear : en fr
  • FR753456A - Improvements to starting systems for internal combustion engines : en fr
  • FR753506A - Automatic clutch control device for machines with continuous operation : en fr
  • GB399915A - Improvements in spray carburetters for internal combustion engines : en
  • GB400007A - Improvements relating to tennis court construction : en
  • US1930705A - Ratchet lock for record binders : en
  • US1931106A - Grinding machine : en
  • GB399919A - Improvements in closures for cartons and the like : en
  • CA336504A - Ore dressing jig : en fr
  • US1930769A - Textile : en
  • US1931184A - Duplicating machine : en
  • US1931213A - Measure and advertising medium : en
  • CA336440A - Higher ketone production : en fr
  • US1930780A - Animal racing apparatus : en
  • US1931460A - System of measuring capacity and power factor, and apparatus therefor : en
  • DE586394C - Feeding and rectifying device for rectangular bodies : de en
  • FR753646A - Electric indicator of the level of a solid body : en fr
  • US1930664A - Process for the recovery of free chlorine from chlorides : en
  • US1931108A - Discharge printing : en
  • DE586357C - Double hinged door for fridge and ice cupboard : de en
  • DE586051C - Ski edge protection device consisting of a plurality of individual narrow parts : de en
  • GB399890A - Improvements in and relating to automatic switch gear employed in connection with electrical installations of railway vehicles or the like : en
  • GB400226A - An improved method of and means for forming sinuous metal tubes : en
  • FR753538A - Improvements to electro-dynamic diffusers : en fr
  • ES131685A1 - A procedure for the conservation of seafood. : en es
  • DE586286C - Earth inductor compass : de en
  • GB400204A - Improvements relating to printing plate clamping devices and the like : en
  • FR753454A - end electrode for electric circuit breakers with liquid or gas blowing : en fr
  • DE586494C - Device for the recovery of pulp fibers from pulp and paper mill waste water : de en
  • DE586516C - Steam boiler : de en
  • FR753535A - Fuel injection pump for internal combustion engines : en fr
  • GB399909A - Improvements in or relating to electric lamp holders : en
  • GB400039A - Corrosion preventing attachment for boats and other metal parts in contact with water : en
  • US1930728A - Operating means : en
  • US1931148A - Awning head rod bracket : en
  • US1930465A - Lubricating installation : en
  • US1930805A - Paper napkin dispensing cabinet : en
  • US1930610A - Card holder : en
  • US1930956A - Acid resisting alloy : en
  • US1930999A - Roller for drawing flat sheet glass : en
  • US1931056A - Manufacture of phenyl esters of phosphoric acid : en
  • US1931330A - Market basket : en
  • DE586267C - Circular knitting machine with reverse plating device : de en
  • DE586378C - Flagpole holder : de en
  • DE586216C - Pull-torch pack, in which the firing rods are axially displaceable in tube-like cavities in the pack : de en
  • DE586306C - Safety lock : de en
  • DK47884C - Device for metal wire binders. : da en
  • US1930505A - Apparatus for high frequency electric signaling : en
  • US1930552A - Song film, method of using said film, and process of manufacturing the same : en
  • DE586397C - Elastic anti-slip protection with ball joint connection for musical instruments : de en
  • CA336453A - Metal boring melting method : en fr
  • DE586312C - Device for sharpening and honing safety razor blades : de en
  • DE586293C - Injection carburetor : de en
  • US1930787A - Shelving : en
  • US1931129A - Arc welding : en
  • GB400072A - Holders for carrying umbrellas and similar articles : en
  • ES1508Y - Bottle distilled drops. : en es
  • GB399956A - Improvements in rotary pumps : en
  • FR753446A - Automatic gear change : en fr
  • FR753403A - Bottle labeling machine : en fr
  • US1931012A - Radio apparatus : en
  • US1931197A - Manufacture of metalliferous sulphurized phenol derivatives : en
  • GB400074A - Improvements in automatic traffic controlling systems : en
  • US1930668A - Fluid-dispensing apparatus : en
  • US1930782A - Soot blower construction for superheater tubes : en
  • US1930834A - Folding leg table : en
  • FR753689A - Device for gynecological use in the bathroom : en fr
  • GB400150A - Improvements in distributing mechanism of typographical composing and distributing machines : en
  • GB400185A - Improvements in or relating to furnaces and the like and to the conveyance of goods therethrough : en
  • FR753690A - Jacquard device for knitting machines : en fr
  • US1931142A - Railway braking apparatus : en
  • US1930843A - Telephone index stand : en
  • US1930491A - Refrigeration evaporation : en
  • US1931132A - Container : en
  • DE586042C - Device for the automatic loading of lined up holding tools for speaking machine needles with needles aligned in the same direction : de en
  • FR753576A - Rat poison and mouse trap : en fr
  • GB400051A - Improvements in or relating to brushes, particularly for shaving and like purposes : en
  • US1930540A - Indicating device : en
  • CA336498A - Sealing disc : en fr
  • DE585970C - Device for displaying the various possible types of combinations and for determining their position within a chord table : de en
  • DE586218C - Mold for briquette extrusion : de en
  • FR753553A - Improvements relating to tables : en fr
  • ES1614Y - Fabric-based bicycle cover, "Cora". : en es
  • FR753428A - Automatic power switch for motor vehicles : en fr
  • GB400045A - Improvements in emulsions for surfacing roads : en
  • ES1855U - Support for typewriters. (Machine-translation by Google Translate, not legally binding) : en es
  • GB399861A - Fuel-injection pumps for internal-combustion engines : en
  • GB399907A - Improvements in rotary intaglio printing machines : en
  • GB400105A - Improvements in fastening means : en
  • CA336479A - Jaw crusher : en fr
  • DE586095C - Commutator for electrical machines and apparatus, in particular roller commutator with dovetail-shaped fins : de en
  • DE586366C - An electrical capacitor built into a thin-walled cup with a solder seam running along one or more edges, the body of which is constantly under pressure caused by one or more springs : de en
  • US1930511A - Blank separating and conveying apparatus : en
  • US1930950A - Motor control apparatus : en
  • FR753534A - Azine series dye production : en fr
  • GB400089A - Method of manufacturing dental plates and like articles of metallic alloys : en
  • US1930718A - Brake shoe : en
  • US1931262A - Firearm : en
  • US1931413A - Ice cream cone : en
  • US1930971A - Motor suspension : en
  • US1930986A - Tarn printing machine : en
  • US1930930A - Laths construction : en
  • US1930893A - Implement hitch for cultivators : en
  • FR753571A - Machine for doubling fabrics by folding them in the longitudinal direction : en fr
  • FR753590A - Pump for musts evaporating machines : en fr
  • FR753694A - Two-part boiler with counter-current circulation : en fr
  • US1931472A - Counterweighted crank : en
  • USD90869S - Design for a tumbler or similar : en
  • US1930529A - Draft rigging : en
  • US1930730A - Treating hydrocarbon oils : en
  • DE586260C - Switch drive : de en
  • USD90893S - Design fob a building : en
  • ES1195Y - Chamber perfected for refrigerators. : en es
  • US1931242A - Apparatus for making headers for water tube boilers : en
  • ES131656A1 - Improvements in the apparatus to regulate and direct the cannon shot. : en es
  • US1930592A - Method and apparatus for storing hydrocarbon motor fuels : en
  • US1930634A - Marking tag and attachment means thereon : en
  • US1930940A - Awning fixture : en
  • US1931218A - Bearing : en
  • DE586152C - Electrically heated pot that can be moved by hand, especially melting pot : de en
  • ES1828U - Shock absorber and friction device, applicable to the base and support of the containers. (Machine-translation by Google Translate, not legally binding) : en es
  • FR753426A - New calculation instrument : en fr
  • DE586413C - Propulsion system for ships with several screws, each driven by an electric motor : de en
  • DE586485C - Roof batten gauge : de en
  • GB400098A - Improved means for mounting postage stamps, paper money, pictures, and the like in albums and the like : en
  • US1931459A - Starting mechanism : en
  • US1931174A - Traffic signal : en
  • US1931249A - Pile : en
  • US1930892A - Holding means for lamps : en
  • US1930985A - Highway guard : en
  • US1931210A - Blank for forming milk cans : en
  • CA336401A - Printing block manufacturing apparatus : en fr
  • US1930879A - Heat exchanger : en
  • US1931429A - Football : en
  • US1930653A - Priming mixture : en
  • US1930918A - Line spacing mechanism : en
  • CA336412A - Seaming machine : en fr
  • DE586332C - Process for the production of shaped bricks from fly ash : de en
  • US1930558A - Setting device for screw thread gauge : en
  • US1931233A - Score pad displaying and supporting device for card tables : en
  • US1930678A - Refrigerating method and apparatus : en
  • CA336472A - Pulp recovery from waste paper : en fr
  • GB400189A - Improvements in or relating to the production of organic acids or esters thereof : en
  • GB400228A - Improvements in transmission gearing : en
  • CA336422A - Locomotive valve gear : en fr
  • FR753636A - : fr
  • GB400093A - Improvements in apparatus for playing games : en
  • CA336383A - Refrigeration apparatus : en fr
  • US1930758A - Electrical rectifying device : en
  • ES131693A1 - AN AUTOMATIC FIREARM WITH FIXED DRAWER AND CLOSED LOCK : en es
  • US1930601A - Metal coating apparatus : en