• DE741653C - Pull-through model for the production of ribbed heating elements : de en
  • CA416499A - Vadinic oxide flake manufacture : en fr
  • FR887659A - Rotary knife for grass and all grain cutting machines : en fr
  • NL55439C - : en
  • DE741699C - Metal vapor converters : de en
  • DE741468C - Process for the preparation of polyazo dyes : de en
  • US2334652A - Process and preparation for heat treating of steel : en
  • CA416382A - Hydraulic pump : en fr
  • CH229726A - Contact converter. : de en
  • DE741980C - Arrangement for pressure measurement : de en
  • US2334176A - Film file : en
  • CA416458A - Ceramic composition and article : en fr
  • CH229707A - Terminal arrangement to attach electrical equipment, e.g. B. counters, serving boards. : de en
  • US2334668A - Apparatus for making strain gauges : en
  • USD136516S - Design for a slip : en
  • US2334680A - Cowling and the like fastener : en
  • BE452643A - Process for catalytically preparing dinitriles : en fr
  • US2334268A - Fastener for eyeleted edges : en
  • USD136538S - Wheeler toy vehicle : en
  • FR887507A - Process for making mass-produced articles, shaped and provided with at least one hole : en fr
  • USD136511S - Casing for a dispensing container : en
  • US2334295A - Crane : en
  • CH229656A - Process for the electrical welding of steel wires for steel tone machines. : de en
  • DE741921C - Glare-free headlights : de en
  • DK61555C - Apparatus for Purifying a Gas Flow for Carried Solid Particles. : da en
  • GB557342A - Improvements in circuit arrangements for producing alternating or oscillatory current from a direct current supply : en
  • US2334454A - Black-out shade : en
  • US2334189A - Relay system and associated circuits therefor : en
  • US2334324A - Portable autographic register : en
  • US2334606A - Centering cone : en
  • DE741828C - Aniline factory : de en
  • FR887504A - Rotary tester with centrifugal force drive intended more particularly for checking detonators for rifled weapon projectiles : en fr
  • US2334401A - Food product and method of making : en
  • USD136534S - Pencil holding attachment for tri-squares : en
  • CA416438A - Container fill checking machine : en fr
  • GB557363A - Improvements in or relating to hypodermic and like syringes : en
  • US2334178A - Variable inductance device : en
  • US2334215A - Photographic tracing cloth : en
  • DE741823C - Soap-free detergents : de en
  • DE741462C - Process for the preparation of o, o-dioxyazo or o-oxycarboxy dyes : de en
  • CA416405A - Lamp socket : en fr
  • DK61576C - Process for the preparation of strongly basic polyoxamides. : da en
  • FR887461A - Grouping system for gasifier devices on a motor vehicle : en fr
  • FR887680A - Constitution of bearings for the crankshafts of double star engines : en fr
  • CA416369A - Capsule for bottles : en fr
  • CH229760A - Switching arrangement for the control of sensitive switching parts. : de en
  • US2334553A - Apparatus and process for catalytic reactions of low boiling hydrocarbons : en
  • US2334383A - Hydraulic control : en
  • US2334572A - Manufacture of abrasive materials : en
  • CA416459A - Fish oil processing and product : en fr
  • FR887538A - Method and apparatus for producing deep-shrunk viscose rayon : en fr
  • GB557309A - Improvements in or relating to printing machines : en
  • DE741822C - Process for the manufacture of sealants for cracks and joints : de en
  • US2334239A - Stabilizfd grease composition : en
  • DE741686C - Process for the production of phenols, their offsets and hydrogenated phenols by pressure hydrogenation of lignin or lignin-containing substances : de en
  • AU1193343A - Tractor drawn plough : en
  • US2334486A - Toy : en
  • DE741654C - Extending table : de en
  • DE742029C - Rod connection, especially for blast furnace coating systems to raise and lower the bell jar : de en
  • DE741794C - Machine for the extraction of spinnable fibers from flax stalks using vibrating breaking bars : de en
  • DK61558C - Procedure and Rotary Furnace for the Production of Phosphate Fertilizers by Melting Raw Phosphates. : da en
  • USD136520S - Glass tumbler or similar article : en
  • CH229702A - Separation point for electrical lines. : de en
  • DE741825C - Process for the production of magnesium oxide and sulfur dioxide by reducing magnesium sulfate : de en
  • DK61563C - Device by a conaxial High Frequency Energy Guide for Combining it and a balanced High Frequency Energy Guide. : da en
  • DE741993C - Gas collection container : de en
  • GB557384A - Improvements in shock-absorbing wheel suspensions : en
  • DE741925C - Resistance welding machine with a pressure-dependent organ that is influenced by the electrode pressure and determines the start and end of the current flow through the welding point : de en
  • CH229581A - Potato masher. : en fr
  • CA416506A - Portable electric flashlight : en fr
  • CH229591A - A method for making a flexible sole, and a flexible sole obtained by this method. : en fr
  • CH229722A - Small circuit breaker with box-shaped housing. : de en
  • CA416452A - Tire building apparatus : en fr
  • CH229632A - Locking device for a mechanical component. : en fr
  • FR887517A - Reproduction of sound recordings in color : en fr
  • CA416503A - Hermetic separable fastener : en fr
  • CH229703A - Cement plinth for the erection of a post. : en fr
  • CH229710A - Device for the automatic regulation of a state variable such as temperature, pressure, humidity. : de en
  • DE742006C - Circuit arrangement for measuring and evaluating the size and sign of a deviation of an impedance from a predetermined, arbitrarily selectable normal value : de en
  • DE741712C - Air brakes for motor vehicle trailers : de en
  • DE741580C - Method and apparatus for spinning short fiber asbestos, such as. B. cardboard fibers : de en
  • DE741640C - Carbon brush holder : de en
  • DE741860C - Two-metal release insensitive to shocks : de en
  • US2334224A - Can sealing machine : en
  • FR887630A - Solid disc wheel for vehicles running on rails, for example carts or wagons in mine galleries : en fr
  • USD136513S - Design for a sandal or similar article : en
  • CA416394A - Explosively actuated tool : en fr
  • CH229740A - Storage and retrieval vessel for surgical sutures. : de en
  • CA416379A - Viewer : en fr
  • DE741757C - Process and system for the digestion of fiber-containing raw materials : de en
  • DE741904C - Isolated power supply for electric radiators : de en
  • DE741838C - Arrangement of a unit with oscillating contact tongues for converting direct or alternating current, in which damping means are provided to avoid disturbing noise emission : de en
  • DE741950C - Device for regulating the temperature of the coolant for cooling the mandrel end in presses for sheathing cables : de en
  • DE741951C - Drive of the tong puller on a rope pulling bench : de en
  • DE741965C - Socket for electron tubes with pressed glass base : de en
  • US2334453A - Speed rock bit : en
  • AU595242A - Heat oxygen' treated polyamides : en
  • AU728042A - Frequency modulation : en
  • CH229739A - Electric mercury tube. : de en
  • CA416473A - Protective layer on light metals and alloys : en fr
  • AU117721B2 - Improvements in photographic focal plane shutters : en
  • NL55520C - : en
  • DE741802C - Device for injecting upper lubricating oil into the intake line of internal combustion engines : de en
  • CH229718A - Contact selector system with contacts arranged in a circle for automatic regulation or control systems. : de en
  • CH229567A - Reinforced concrete beam. : de en
  • DE742034C - Method for balancing synchronous rotors in electrical machines : de en
  • CH229565A - Process for the production of water-soluble moth repellants. : de en
  • FR887533A - Preservation of glands for making opotherapeutic products and furniture specially intended for this purpose : en fr
  • NL55568C - : en
  • US2334305A - Spring structure : en
  • FR887593A - Elastic wooden base for removable beds : en fr
  • FR887525A - Multiple continuous motor control for shaping machines rotating within variable speed limits : en fr
  • FR887689A - Reservoir brush with humidification device : en fr
  • GB557372A - Improvements in or relating to hinges : en
  • DE741836C - Electric capacitor : de en
  • DE741944C - Device for filling envelopes or the like. : de en
  • FR887574A - Centrifugal force dust separator, especially for internal combustion engines : en fr
  • GB557433A - Improvements connected with mole draining implements : en
  • US2334222A - Electric steam iron : en
  • US2334483A - Folding stereoscope : en
  • DE741939C - Switching device for the plane and longitudinal of cross supports on machine tools : de en
  • FR887518A - Steam sterilization apparatus for medical use : en fr
  • DE741979C - Device for the production of regular, circular scales : de en
  • CH229566A - Covering that insulates against moisture and water. : de en
  • US2334186A - Organic sulphonamides and their preparation : en
  • DE741772C - Mechanical pencil with a point body that can be moved along the length of a feed tube under the action of a spring : de en
  • DK61579C - Charger for Internal Combustion Engines. : da en
  • AU117717B2 - Improvements in or relating tothe manufacture of sponge rubber from aqueous dispersions of rubber : en
  • US2334516A - Cathode-ray tube : en
  • US2334674A - Method and apparatus for feeding webs in folders for printing machines : en
  • FR887458A - Nozzle : en fr
  • FR887565A - Temperature regulator, more particularly for cracking installations : en fr
  • GB557311A - Improvements in absorption refrigerating apparatus : en
  • GB557319A - Improvements in or relating to machines for inserting cartridges into cartridge belts for automatic guns : en
  • DE741862C - Step transformer : de en
  • DE742005C - Process for producing the enveloping insulation of excitation coils for electrical machines : de en
  • DE742026C - Device for pressing Haecksel, dry pulp and similar loosely stored goods and for filling in bags : de en
  • DK61585C - Versatile prismatic cardboard packaging. : da en
  • NL97958A - Coated electrode for electric arc welding : en nl
  • FR887529A - Protective device easily adjustable in all directions, applicable to circular saws to avoid accidents : en fr
  • GB557317A - Manufacture of derivatives of laevo-rotatory ª‡-hydroxy-ª‰, ª‰-dimethyl-gamma-ªÃ-butyro-lactone : en
  • US2334160A - Web splicing device : en
  • FR887580A - Induction furnace : en fr
  • US2334304A - Portable loader : en
  • US2334344A - Material supporting attachment for ironing boards : en
  • AU117705B2 - An improved method of and apparatus for making plywood with thermosetting glue : en
  • GB557417A - Improvements in or relating to devices or appliances for use in the straining or stretching of skins, hides, pelts, or the like : en
  • US2334339A - Electric switch system : en
  • DK61570C - Procedure for Manufacturing Electric Discharge Pipes. : da en
  • US2334168A - Brake arrangement : en
  • US2334253A - Liquid dispenser : en
  • DK61578C - Drawbar for Tillage Tools. : da en
  • DK61573C - Water-cooled Planrist. : da en
  • DE741811C - Self-locking bevel gear for motor vehicles : de en
  • CH229642A - Sound transmission device, consisting of at least one horn loudspeaker with several exponential horns of different radiation power. : de en
  • GB557354A - Improvements in and relating to electric motor control systems : en
  • GB557382A - Improvements in circular warp and weft looms : en
  • CH229784A - Method for controlling copy milling machines. : de en
  • FR887676A - Mechanical counting device establishing the approximate centesimal composition of a collection of objects : en fr
  • DE741670C - Electrolyte for the production of protective coatings on heavy metals and their alloys : de en
  • CH229691A - Magneto. : de en
  • US2334334A - Barrelhead for tumbling mills : en
  • US2334171A - Method of making liquid coffee extracts : en
  • US2334435A - Folding frame structure : en
  • CH229674A - Electric lighter for connection to low voltage. : de en
  • US2334198A - Bottle carrying box : en
  • USD136527S - Automobile ventilator insect screen : en
  • DE741991C - Zipper slider made of plastic material : de en
  • US2334416A - Fruit slicing apparatus : en
  • FR887553A - Process for improving artificial and natural textiles, such as yarns, fibers, sheets or films and the like : en fr
  • DE741754C - Interchangeable steel holder : de en
  • DE741840C - Process for the production of sintered hard metal alloys for work equipment and tools : de en
  • FR887545A - Ammonia combustion gas absorption process : en fr
  • US2334307A - Process of manufacturing decorated chinaware and pottery : en
  • US2334433A - Binding machine : en
  • CA416498A - Axle bearing seal : en fr
  • CH229583A - Fitting for connecting wooden parts, especially furniture that can be dismantled, such as cupboards, etc. : de en
  • FR887694A - Fuel resistant materials and method of preparing such materials : en fr
  • CH229646A - Hand setting device on a clock. : de en
  • DE741755C - Method and device for welding webs of thermoformable plastic : de en
  • FR887645A - Piston steam engine with downstream exhaust steam turbine : en fr
  • US2334293A - Reversible cover for combination sinks and tubs : en
  • USD136681S - Textile fabric or similar article : en
  • US2334213A - Machine for making container parts : en
  • US2334357A - Cylinder covering mechanism : en
  • CA416481A - Door lock : en fr
  • CH229608A - Process for the production of a basic condensation product. : de en
  • CH229637A - Device for radiographic back-ray recordings with a cone camera. : de en
  • AU685042A - Improvements in or relating to driving bands or chains : en
  • FR887693A - Process for preparing alkali alcoholates : en fr
  • GB557339A - Improvements in and relating to the production or separation of dicyclopentadiene : en
  • CH229770A - As a trailer on bicycles and a device that can be used on its own for conveying and carrying loads. : de en
  • GB557322A - Improvements in or relating to machines for feeding discs, washers, pellets or the like into containers : en
  • US2334317A - Method of treating milk : en
  • US2334252A - Tweezers : en
  • CH229741A - Process for the preparation of a new therapeutically effective amidine. : de en
  • GB557374A - Improvements in or relating to supporting internal combustion engines to facilitate adjustment and repair : en
  • US2334559A - Container filling mechanism : en
  • US2334586A - Wood-preserving apparatus : en
  • DE742009C - Suitcase : de en
  • US2334270A - Plywood binder : en
  • FR887526A - Propellers with automatic blade adjustment : en fr
  • US2334468A - Receiving apparatus for communication systems : en
  • DE741743C - Use of zinc alloys : de en
  • DE741747C - Device for measuring and multiple display of the flight altitude : de en
  • CH229688A - Injection internal combustion engine. : de en
  • AU117711B2 - Improvements in automatic phonographs : en
  • GB557378A - Improvements in or relating to hitch means for connecting trailed devices to tractive vehicles : en
  • DE741864C - Device for electrical resistance welding of hollow bodies : de en
  • US2334200A - Naphthalene derivatives and method of obtaining same : en
  • US2334636A - Syphilis test and antigen : en
  • FR887521A - Device used to fire cartridges or grenades : en fr
  • US2334323A - Scraping and loading machine : en
  • US2334642A - Abrasive tool : en
  • FR887498A - Improvements to voltage-controlled photoelectric cathode secondary electron multipliers : en fr
  • DE741954C - Insertion device for typewriters and similar machines : de en
  • DE741955C - Arrangement for generating electrical oscillations of very high frequency : de en
  • DE741919C - Explosion-proof screw socket for incandescent lamps with interrupted contact within a closed chamber : de en
  • DE741837C - Anode with a smooth surface for electrolytic cells, especially for electrolytic capacitors : de en
  • DE741870C - Beating mechanism for butter machine for uninterrupted buttering of cream : de en
  • DE741706C - Device for sending or receiving mechanical vibrations : de en
  • DE741940C - Device for clamping hex nuts o. The like. For the simultaneous drilling of safety holes : de en
  • DE741715C - Device for eliminating ice formation in dry gas containers : de en
  • FR887699A - Magnetic lens for corpuscular ray devices : en fr
  • CA416502A - Porous coated board manufacture : en fr
  • CH229732A - Arrangement for grid control of mercury vapor valves. : de en
  • US2334328A - Control mechanism : en
  • US2334649A - Phonograph : en
  • US2334558A - Rubber sleeve applicator : en
  • US2334577A - Apparatus for scoring coated pipe : en
  • US2334664A - Filter replacement unit : en
  • FR887575A - Cooling device by air current or gas current, particularly for combustion engines : en fr
  • DE741758C - Process for keeping the water content and the weight per unit area equal in webs made of fiber suspensions : de en
  • DE741788C - Circuit arrangement for phase and damping equalization of electrical transmission systems : de en
  • FR887629A - Transformer mounted as an electrical filter with reinforcement of certain frequencies in the pass band : en fr
  • GB557336A - Improvements in or relating to electric supply equipment for precipitation plants for industrial gases : en
  • US2334635A - Window control means : en
  • CA416463A - Conveyer : en fr
  • US2334465A - Numerical accumulator : en
  • US2334285A - Balanced rotary body : en
  • US2334457A - Engine cooling system : en
  • CA416444A - Sheet trimming device : en fr
  • CH229654A - Process for dip soldering of aluminum and aluminum alloys. : de en
  • CH229728A - Process for improving the electrical quality of solid iron cores. : de en
  • FR887684A - Motion control device for cinematographic films and the like : en fr
  • FR887466A - Device for detecting wire breaks in cable machines : en fr
  • US2334448A - Pressure receptacle closure : en
  • US2334640A - Method of applying clay to jiggering molds : en
  • DE741632C - Rail current switch : de en
  • DE742003C - Free-standing extinguishing chamber switch : de en
  • FR887551A - Variable speed drive applicable to all machines having to work at different speeds : en fr
  • DE741848C - Process for the production of one-piece trouser support flaps made of leather or the like. : de en
  • DK61582C - Device for Dynamos arranged in Wheel Hub. : da en
  • US2334541A - Photographic apparatus : en
  • FR887646A - Removable furniture, especially tables, benches, stools, etc. : en fr
  • AU705242A - Improvements in or relating to methods off treating p Phenylene diamines andthe improved products produced thereby : en
  • US2334603A - Automatic fuel control : en
  • US2334509A - Apparatus for molding or lining hollow articles : en
  • US2334432A - Window screen : en
  • US2334547A - Synchronized sound and picture sequence projector : en
  • FR887547A - Contactor device, magnetically actuated for periodic switching : en fr
  • CH229585A - Measuring, mixing, storage and removal device for lubricants. : de en
  • US2334567A - Apparatus for starting and controlling discharge devices : en
  • DE730631C - Process for utilizing waste heat, especially hot exhaust gases : de en
  • DE741728C - Protective device for electrical system parts : de en
  • US2334163A - Preparation of beta-alanine : en
  • CA416442A - Hectograph blanket : en fr
  • GB557338A - Improvements relating to throttle-control means for internal combustion engines : en
  • GB557359A - Improvements in or relating to arrangements for measuring or deriving currents from electrical signal amplitude changes : en
  • FR887685A - Electric rectifier regulator device : en fr
  • DE741872C - Automatic copying machine tool, in particular copy milling machine, for contour processing, in which a drawing of the crack or circumference is scanned by a photocell : de en
  • FR887473A - Air conditioning apparatus, in particular for airplanes and cars : en fr
  • USD136535S - Drag angle finder for diamond dressing tools : en
  • FR887637A - Method and device for degreasing : en fr
  • GB557408A - Improvements in garments : en
  • DE741803C - Compression-elastic sealing plate consisting of a metal support with filler : de en
  • DE741863C - Mixed light lamp : de en
  • US2334592A - Teletypewriter transmitting system : en
  • US2334441A - Combination refuse cutter and burner : en
  • FR887522A - Bee hive : en fr
  • FR887532A - Protective spike for footwear and its manufacturing process : en fr
  • CA416467A - Power-operated window lifting device : en fr
  • CH229622A - Harmonica ceiling attachment. : de en
  • GB557431A - Wash-tub or sink and wringing machine equipment : en
  • CH229606A - Process for the preparation of a reactive ester of an oxyalkylamidine. : de en
  • US2334508A - Wiper for windscreens or other windows : en
  • GB557397A - Improvements relating to apparatus for treating liquids with solids in suspension : en
  • US2334449A - Line shaft coupling : en
  • CH229634A - Shaping material processing machine with optical observation device. : de en
  • FR887618A - Synchronous teleprinter telegraph installation : en fr
  • CA416477A - Metal separation by distillation : en fr
  • DE741807C - Device for holding wide in machines, such as. B. stamping calenders, incoming material webs, especially paper webs : de en
  • FR887661A - Ball clutch for friction plate transmissions : en fr
  • GB557442A - Improvements in and relating to rope : en
  • US2334612A - Coke oven regenerator : en
  • US2334662A - Upholstery pin : en
  • CH229645A - Lighting device for projection apparatus, cinema apparatus and spotlights. : de en
  • US2334571A - Circuit protective switch : en
  • GB557297A - Improvements in power presses : en
  • CA416398A - Concentrated photographic syrup : en fr
  • CA416424A - Furnace regulator system : en fr
  • CH229607A - Process for the preparation of a 1-acylaminoaryl-5-pyrazolone. : de en
  • US2334259A - Refrigerating apparatus : en
  • CA416451A - Nickel-platinum alloy : en fr
  • CH229594A - Process for the preservation of coagulable liquids, such as, for example, milk and blood, and apparatus for the production thereof. : en fr
  • US2334491A - Method and apparatus for determining the electrical characteristics of geological formations traversed by drill holes : en
  • USD136531S - Design fob a statuette : en
  • GB557377A - Improvements in or relating to fluid pressure motors : en
  • GB557356A - Improvements in or relating to electric dry cells : en
  • CH229793A - Manicure comb. : en fr
  • US2334199A - Process of treating textile : en
  • US2334242A - Hydraulic weighing scale with temperature compensating means : en
  • US2334643A - Oental articulator and method for orienting casts thereon : en
  • US2334667A - Distillation of tar to produce heavy creosote oil : en
  • DE741753C - Process for the electrolytic coloring of objects made of aluminum with an oxidic surface layer : de en
  • DE741974C - Method and device for the production of composite panels : de en
  • GB557358A - Method and apparatus for measuring the amount of coating material applied to a surface : en
  • GB557347A - Improvement in process for making aliphatic dicarbonylic compounds : en
  • DE741994C - Laundry washing machine with electrical heating and water circulation : de en
  • GB557290A - Process for purifying contaminated mineral oils and waxes : en
  • US2334611A - Delayed action brake holding mechanism : en
  • DE741922C - Machine for winding a toroidal resistance coil : de en
  • DE741962C - Electric safety light : de en
  • FR887595A - Power transmission to hydraulic mechanisms, in particular for motor vehicles : en fr
  • FR887632A - Manufacturing process for thin ceramic plates : en fr
  • GB557409A - Improvements in and relating to fasteners for use with apertured supports : en
  • GB557436A - Production of propionitrile : en
  • DE741898C - Regenerative braking circuit for AC vehicles with exciter generator and field control : de en
  • US2334193A - Vehicle seat adjustment and lock : en
  • US2334393A - Determination of magnetic and electrical anisotropy of formation core samples : en
  • DE741833C - Low-liquid or liquid-free switches protected by casing : de en
  • DE741694C - Bolt slot clamp for electrical lines : de en
  • DE741774C - Construction drying oven : de en
  • FR887492A - Dyes o. o'-dihydroxy-azo and their manufacturing process : en fr
  • DE741732C - Arc furnace in which the openings in the top masonry for the electrodes are sealed by means of water-cooled rings resting on the top masonry : de en
  • DE741761C - Gripper arrangement for drive wheels with rubber tires of tractors or other vehicles : de en
  • GB557331A - Stapling machine : en
  • USD136664S - White airplane : en
  • DE741785C - Method for the transmission of television pictures whose brightness range is less than the available modulation range : de en
  • DE741937C - Process for the production of phosphate coatings on metals : de en
  • DE741867C - In the vertical direction subdivided mold for the production of clad plates, especially from light metal alloys : de en
  • US2334622A - Expansion link : en
  • USD136679S - Combined pocketbook and shopping bag : en
  • DE741700C - Process for the catalytic cleavage of carbonaceous substances : de en
  • US2334534A - Teletypewriter : en
  • DE741877C - Arrangement to increase the sensitivity of electrical angle transmission systems : de en
  • FR887471A - Rectification process and device for its implementation : en fr
  • US2334423A - Ink transfer ribbon : en
  • US2334431A - Calculating machine : en
  • CH229580A - Ring-shaped electrically heated hotplate and process for their manufacture. : de en
  • CH229748A - Process for the preparation of a molecular compound of sulfanilamide. : de en
  • CH229651A - Product assembled partly from a material containing at least 50% zinc and partly from an alloy containing at least 50% copper. : de en
  • AU1158443A - Improvements in or relating to dielectric compositions : en
  • CH229643A - Telescope system with a highly magnifying telescope and a finder. : de en
  • US2334302A - Screw turbine : en
  • US2334678A - Separable snap fastener installation : en
  • US2334591A - Electrical signaling arrangement : en
  • US2334243A - Process for piston rings : en
  • US2334234A - Starting sequence system for telegraphs : en
  • CH229717A - Device for remote switching of at least one electrical hand-operated device. : de en
  • GB557289A - Manufacture of 2-aminothiazole compounds : en
  • GB557437A - Improvements relating to automatic door-closing means : en
  • GB557438A - Instrument for suturing wounds : en
  • FR887605A - Electric resistance furnace for melting or heating metals and other materials : en fr
  • CA416500A - Screen for picture projections : en fr
  • CH229599A - Method of making bread with a long shelf life. : de en
  • US2334552A - Signaling system : en
  • US2334220A - Fuel system : en
  • US2334274A - Gasoline-insoluble grease : en
  • US2334218A - Lightning arrester, alternate deflector type : en
  • US2334387A - Child s ztrailer : en
  • DE741719C - Supply roll brake, especially for rotary printing machines : de en
  • FR887601A - Method for determining the location of a leak in gas-filled tubular conduits : en fr
  • US2334275A - Gas removing device for electric furnaces : en
  • US2334230A - Goldbeater's foil : en
  • US2334499A - Preserving lime : en
  • CH229676A - Device for automatic adjustment of the play between two parts. : en fr
  • CH229616A - Process for the production of corrosion-preventing protective layers on workpieces made of magnesium alloys. : de en
  • CH229755A - Method and device for synchronizing alternating voltages. : de en
  • US2334446A - Polarizing goggles : en
  • GB557394A - Improvements in and relating to syphons for flushing cisterns : en
  • US2334238A - Surface grinder spindle bearing : en
  • US2334291A - Tetracyclic compounds and process of making same : en
  • US2334663A - Seal for rotary kilns : en
  • US2334309A - Well tool construction : en
  • US2334318A - Piston : en
  • FR887627A - Process for dyeing hard or semi-hard fiber plates : en fr
  • GB557402A - Improvements in or relating to timing devices : en
  • GB557335A - Annular boring tool : en
  • GB557395A - Improvements in gas fired vertical shaft kilns : en
  • DE741992C - Artificial silk fur : de en
  • CH229564A - Impeller bearings, in particular for agricultural machines and implements. : de en
  • FR887474A - Improvements to liquid fuel burners : en fr
  • USD136529S - Design for a medallion or the like : en
  • FR887548A - Progressive control for machines supplied by current rectifiers : en fr
  • CA416446A - Flocculation and clarification apparatus : en fr
  • US2334164A - Web tensioning device : en
  • US2334223A - Material handling apparatus : en
  • US2334301A - Tool-guiding apparatus : en
  • US2334402A - Transmission control : en
  • USD136676S - Design fob a badge ob similar article : en
  • US2334434A - Reduction of finely divided metal compounds : en
  • DE740663C - Device for separating the mixtures resulting from the digestion of bast : de en
  • CH229665A - Dust extraction device on belt grinders. : de en
  • CH229763A - Hydraulic fluid transmission, in particular for motor vehicles, with a part that can be pushed out of the circuit. : de en fr
  • US2334460A - Excavating apparatus : en
  • US2334310A - Antispasmodic agents : en
  • US2334413A - Envelope : en
  • DE741976C - Process for the production of lead bronze bearings : de en
  • CA416428A - Brake : en fr
  • CH229671A - Equipment on centrifuges for centrifuging the impurities separated from the centrifuged material from the centrifugal drum. : de en
  • CH229771A - Elastic handlebar for cycle. : en fr
  • DE741678C - Clothes connector designed as a pin lock : de en
  • US2334321A - 1, 3, 5-triazinyl-(6)-aminophenylarsenic compound : en
  • CH229663A - Method and apparatus for the heat treatment of metal parts by electricity. : en fr
  • US2334414A - Seismic surveying : en
  • FR887451A - Safety device for vehicles using town gas : en fr
  • CH229751A - Telecommunications installation. : en fr
  • CH229789A - Electric flat housing lamp with color filter slides. : de en
  • DK61565C - Adjustable LED for electric luminaires. : da en
  • CH229602A - Process for the direct production of a mixture rich in sulphurous gas and sulfur trioxide, from sodium sulphate. : en fr
  • FR887570A - Anode for electrolyte capacitor : en fr
  • FR887655A - Chlorination process in the presence of ferric chloride : en fr
  • CH229774A - Three-axle steering frame of tram vehicles with brake linkage to achieve a constant brake pad pressure. : de en
  • US2334647A - Mailbox : en
  • AU673942A - Improvements in or relating to cobalt alloys and method of production : en
  • US2334382A - Friction clutch : en
  • US2334427A - Dew point controller and dew point system : en
  • USD136540S - Design for an airplane engine : en
  • USRE22392E - Apparatus for and method of form : en
  • US2334167A - Cable power unit : en
  • US2334292A - Fruit picker : en
  • US2334478A - Combined handle and fastener for receptacles : en
  • US2334632A - Recovery of nitrogen and oxygen : en
  • DE741633C - Device for receiving wireless broadcasts of certain types of programs : de en
  • US2334463A - Liquid level indicating system : en
  • US2334212A - Dancing toy : en
  • AU117720B2 - Improvements in or relating to driving bands or chains : en
  • US2334308A - Package loading apparatus : en
  • DE742032C - Switching arrangement for regulating the gain : de en
  • GB557366A - Improvements relating to rotary pumps : en
  • FR887534A - Casing for steam or gas turbines with relatively large flanges : en fr
  • GB557440A - Improvements in and relating to electric wave signalling : en
  • FR887463A - Manufacture of slider closures : en fr
  • FR887673A - Periodically actuated contactor devices with contact body performing a rolling or rotating movement and not having moving current supply lines : en fr
  • US2334326A - Weighing scale : en
  • CH229773A - Gear drive for the driving axles of motor vehicles, in particular rail cars. : de en
  • FR887592A - Pressure measuring device : en fr
  • FR887653A - Machine for the production of crossed coils : en fr
  • FR887479A - Process for improving fibrous materials : en fr
  • DK61571C - Multiplier tube. : da en
  • FR887554A - Transportable device, equipped with an electric machine with pedal control : en fr
  • FR887478A - Improvements to clutch discs, brakes or the like : en fr
  • GB557422A - Improvements in or relating to wheel chocks : en
  • DK61572C - Coupling to polar Control of a Brown tube at the Wehnelt cylinder. : da en
  • CA416427A - Dynamo regulating apparatus : en fr
  • CH229660A - Automatic threading lathe. : en fr
  • FR887559A - Frequency stabilizer device for tube transmitters : en fr
  • GB557432A - Improvements in connection with frames for beehives : en
  • DE741727C - Protection circuit based on the comparison of the directions of energy or current at the ends of a line to be protected : de en
  • CH229668A - Machine tool for creating screw grooves. : de en
  • CH229787A - Switching device with quenching and overcurrent coil. : de en
  • CA416388A - Valve assembly : en fr
  • CH229794A - Capsule microphone. : de en
  • DE741831C - Device for eliminating the disruptive effect of photoelectric effects on the signal plate of a one-sided mosaic electrode : de en
  • DE737485C - Bicycle shed : de en
  • DE741759C - Pressure equalization device for vacuum chambers : de en
  • CA416493A - Integrating gradiometer : en fr
  • US2334497A - Favor cake : en
  • US2334300A - Pivotal rear sight for firearms : en
  • US2334173A - Rubbing shoe : en
  • US2334494A - Abrasive article and method of making the same : en
  • DE741868C - Device against the rolling up of rolled up, provided with a support and rolling rod maps, pictures o. The like. : de en
  • CH229635A - Device for measuring taps, reamers and similar tools. : de en
  • US2334602A - Coil winding machine : en
  • DE741713C - Switching arrangement with a four-speed transmission for motorcycles, motorized bicycles, motor vehicles and. like : de en
  • CA416454A - Ignition distributor : en fr
  • NL55560C - : en
  • US2334437A - Shoe sole press : en
  • US2334579A - Indicating lamp receptacle : en
  • DE741711C - Control device for the main and auxiliary rudders of aircraft : de en
  • USD136522S - Design for a fuse holder : en
  • US2334654A - Method of forming coated frozen confections : en
  • CH229590A - Process for the manufacture of arm blades. : de en
  • CH229733A - Contact device for converting alternating current into direct current and vice versa. : de en
  • AU122870B2 - Tractor drawn plough : en
  • DE741637C - Method of assembling submersible electrical machines with vertical shaft : de en
  • FR887456A - Processes for the preparation of aqueous products which easily form emulsions with fatty substances or other substances : en fr
  • AU1132243A - Distortion reduction on modulated amplifiers : en
  • CA416378A - Composite metal article forming apparatus : en fr
  • CH229762A - Pack, especially for frozen food. : de en
  • FR887588A - Frame for shelving with metal elements : en fr
  • US2334532A - Refining oil-soluble sulphonates : en
  • US2334403A - Distributing valve for pneumatic hammering tools : en
  • CH229623A - Crampons with bindings. : de en
  • DE741746C - Process for the extraction of zinc via zinc amalgam : de en
  • US2334180A - alpha-pyrone and method of preparing it : en
  • US2334244A - Fishing reel : en
  • US2334197A - Bottle carrier and separator therefor : en
  • US2334260A - Vehicle tire : en
  • US2334475A - Method and apparatus for investigating earth formations traversed by boreholes : en
  • US2334517A - High molecular weight surface active amines : en
  • AU117723B2 - Abrasive articles bonded with synthetic rubber : en
  • CH229610A - Process for the preparation of a monoazo dye. : de en
  • CH229725A - Mechanical converter. : de en
  • US2334338A - Sextant : en
  • CA416411A - Rust-proofing material for metals : en fr
  • CH229601A - Diaphragm for the electrolysis of solutions containing sulphate. : de en
  • DE741910C - Runner for electrical machines with triangular or trapezoidal winding conductors : de en
  • FR887519A - Elastic isolation of the operating mechanism from impact masses in mechanical hammers : en fr
  • CH229693A - Regulators for prime movers. : de en
  • DK61560C - Coupling device for Apparatus for AC Telegraphy. : da en
  • US2334191A - Desk set : en
  • US2334373A - Match book : en
  • US2334528A - Electrical control system : en
  • CA416437A - Filled container steaming apparatus : en fr
  • CA416496A - Motion controlling apparatus : en fr
  • DE741917C - Gas-filled electric light bulb with a double-walled bulb : de en
  • DE741783C - Preparations for promoting plant growth : de en
  • FR887546A - Explosion turbine : en fr
  • FR887584A - heat exchanger comprising tubes of relatively small diameter : en fr
  • US2334687A - Connector : en
  • US2334535A - Sipper : en
  • AU117704B2 - Improvements insanitary napkins : en
  • CH229666A - Storage for horizontal or inclined rotating drums. : de en
  • DE742044C - Display device for scales : de en
  • GB557313A - Improvements in or relating to smoke-producing or discharging toys : en
  • DE741801C - Diesel fuels : de en
  • DE741905C - Device for remote switching of portable machines or apparatus : de en
  • CH229650A - Injection mold. : de en
  • CA416474A - Variable speed transmission and clutch : en fr
  • US2334241A - Counting machine : en
  • USD136532S - Design foe a statuette : en
  • US2334665A - Method and control system for treating and canning rice : en
  • US2334297A - Convertible article of furniture : en
  • AU117731B2 - Improved concrete mixture and process for its preparation : en
  • CH229609A - Process for preparing thymol. : en fr
  • FR887671A - Device for grinding, dissolving and homogenizing semiliquid and pasty masses : en fr
  • GB557385A - Improvements in or relating to navigational control devices comprising a directive radio antenna : en
  • US2334604A - Glassworking apparatus : en
  • CA416489A - Well drilling fluid : en fr
  • US2334217A - Separating materials, segregating materials, and contacting materials : en
  • US2334443A - Tire pressure indicator : en
  • CA416380A - Shedding mechanism : en fr
  • US2334400A - Purification of polyhydric alcohols : en
  • US2334505A - Universal spring hooking and looping machine : en
  • GB557400A - Improvements in and relating to hypodermic ampoule syringe units : en
  • FR887613A - Cinematographic film magazine, especially for small format film cameras : en fr
  • DE741769C - Mass for the production of solidification cores : de en
  • GB557287A - Improvements in or relating to frequency conversion by thermionic discharge devices : en
  • US2334363A - Boring tool : en
  • US2334397A - Electrical discharge device : en
  • FR887672A - Process for the improvement of flours, doughs obtained from these flours, as well as products resulting from their cooking : en fr
  • FR887675A - Propulsion of maritime vehicles : en fr
  • USD136661S - Clothes washing stirrer or the like : en
  • GB557391A - Improvements in and connected with electric conduit supports : en
  • NL55747C - : nl
  • DE741689C - Process for the production of higher molecular weight fatty acid esters of oxyalkylamino compounds which are effective as plasticizers : de en
  • DE741720C - Multi-layer hollow bodies with one or more layers of helically wound wire : de en
  • DE741752C - United suction and pressure valve : de en
  • USD136515S - Design for a milk bottle : en
  • USD136657S - Design for a holder for narrow fabrics : en
  • USD136666S - Design for a tile : en
  • US2334231A - Machine tool : en
  • GB557350A - Speed governing of prime movers : en
  • CA416448A - Pipe joint : en fr
  • FR887511A - Metallizable direct dyes and their preparation process : en fr
  • FR887567A - Improvements to vibration dampers : en fr
  • DE741696C - Locking device for rotatable electrical switch body : de en
  • GB557314A - Improved method for extracting lead : en
  • GB557410A - An improved process for the manufacture of halogenated hydrocarbon compounds : en
  • US2334187A - Vapor generator : en
  • FR887564A - Differential device : en fr
  • FR887464A - Gas meter membrane reinforcement plate : en fr
  • DE741658C - Saw blade : de en
  • DE741830C - Semi-automatic high-voltage control for the drive motors of electrically powered vehicles : de en
  • DE741845C - Photographic camera with lens aperture, adjustable shutter and an electric light meter : de en
  • GB557407A - Timing apparatus for use in centrifugal separators and the like : en
  • USD136655S - Draftsman s welding symbol template : en
  • US2334360A - Conditioning bag : en
  • US2334557A - Transfer sleeve for drill pipe protectors : en
  • NL55525C - Electric lantern, especially for use during mandatory darkening. : en nl
  • US2334399A - Method for making heat insulating material : en
  • US2334504A - Aircraft structure : en
  • BE452910A - : en fr
  • US2334548A - Sealing means : en
  • CH229614A - Process for accelerating the vulcanization of rubber using dithiocarbamic acid derivatives. : de en
  • CH229795A - Circuit arrangement for telephone systems with main and sub-offices. : de en
  • CA416407A - Photographic projector : en fr
  • FR887520A - Measuring device for triangular profiles with rounded angles : en fr
  • CH229619A - Eraser for use on typewriters and office machines. : de en
  • CA416431A - Low frequency resilient mounting : en fr
  • CH229715A - Electric switch. : de en
  • US2334405A - Method of making deep-etched lithographic plates : en
  • US2334629A - Hydrodynamic brake : en
  • NL55582C - : en
  • DE741701C - Combustion chamber with air supply openings, especially for pulverized coal combustion : de en
  • GB557304A - An improved measuring device for use in the game of bowls : en
  • US2334415A - Hitch for corn binders and hayracks : en
  • DE741816C - Security bar against valve theft on bicycles : de en
  • DE740671C - Process for rendering finished textile products water repellent : de en
  • FR887589A - Film drive device : en fr
  • US2334190A - Frequency modulation detection : en
  • GB557288A - A method of making stamping dies : en
  • DE741901C - Arrangement for deflecting cathode rays : de en
  • DE741990C - Arrangement of an electric hub alternator : de en
  • GB557361A - Improved process for the preparation of photographic prints : en
  • FR887604A - Soft rubber seal : en fr
  • FR887683A - Improvements made to annealing and quenching furnaces for the heat treatment of metals or the like, said furnaces comprising an electrical resistance constituted by a grid with self-regulation of the temperature : en fr
  • US2334219A - Evaporator structure : en
  • DE741874C - Device for automatic compensation of centrifugal forces in vehicles : de en
  • DE741834C - Fine-level resistance regulator in which the width of the fixed contacts is greater than their mutual distance, especially collector regulators for rail vehicles : de en
  • CA416414A - Remote metering system : en fr
  • GB557430A - Improvements in spring upholstered furniture : en
  • US2334570A - Piston ring : en
  • US2334438A - Automatic choke valve : en
  • US2334458A - Label handling apparatus : en
  • CA416391A - Square micrometric device : en fr
  • CH229758A - Switch with illuminated position indicator, in particular acknowledgment switch or control acknowledgment switch. : de en
  • DK61562C - Coupling to Frequency Doubling of High Frequency Oscillations. : da en
  • CH229786A - Arrangement for interrupting and closing a circuit. : de en
  • CH229574A - Process for the manufacture of glass objects, tempered by immersion in a liquid. : en it
  • CA416486A - Well drilling fluid : en fr
  • US2334165A - Forming dye packages : en
  • US2334390A - Water-insoluble oxyalkylated drastically oxidized castor oil and method of making same : en
  • CA416432A - Vinyl resin plastic filler : en fr
  • CH229613A - Ignition stick. : de en
  • GB557341A - Improvements relating to injection moulding machines : en
  • CH229695A - Tubular heat exchanger. : de en
  • CA416494A - Synchronous simplex telegraph system : en fr
  • CA416374A - Toilet kit : en fr
  • GB557362A - Improvements in radio-reception : en
  • NL97959A - Electrode for electric arc welding : en nl
  • CH229612A - Process for producing a detergent. : de en
  • CH229790A - Process for the preparation of an (a, 7-dioxy-B, B-dimethyl-butyryl) -B'-aminobutyric acid salt. : de en
  • US2334333A - Train dispatcher signal system : en
  • FR887665A - Barrel switch : en fr
  • FR887573A - Process for the preparation of caramel by heating masses of sugar containing water and an alkaline substance : en fr
  • GB557404A - Improvements in or relating to fireplaces and the like : en
  • GB557426A - Improvements in and connected with the making of roads and the like : en
  • DE741908C - Device for quick and smooth reversing of motors operated in Leonard circuit : de en
  • FR887531A - Paints resistant to wiping, friction and water action : en fr
  • GB557302A - Machine for forming fabric bands for pneumatic tyres : en
  • US2334284A - Refrigerating apparatus : en
  • DE741795C - Method and device for de-lumbering and shaking green bast, especially green flax stalks : de en
  • GB557315A - Process for the removal of mercaptans from hydrocarbon distillates : en
  • FR887467A - Instructional device for explaining movement phenomena : en fr
  • US2334235A - Adapter for rotary cloth cutting machine blades : en
  • DE741763C - Water tube radiation boiler : de en
  • DE741820C - Process for manufacturing outsoles : de en
  • US2334639A - Crankshaft chuck : en
  • US2334599A - Attachment for sewing machines : en
  • DE741491C - Process for the preparation of unsulfonated monoazo dyes : de en
  • US2334536A - Dispensing carton : en
  • US2334575A - Selective signaling system : en
  • GB557439A - Improvements in presses especially for shaping sheet metal : en
  • CA416480A - Door knob fastener : en fr
  • US2334621A - Method of treating sulphite waste liquors : en
  • US2334207A - Control for power driven mechanisms : en
  • US2334462A - Buckle : en
  • US2334277A - Heat- and storage-stable chlorinated olefinic polymer and process : en
  • US2334530A - Protective means for transmitters : en
  • DE741729C - Socket for attaching lights : de en
  • US2334467A - Coding apparatus : en
  • NL56325C - : en
  • US2334507A - Train detecting and reporting apparatus : en
  • US2334627A - Static eliminator for radio telegraphy : en
  • CH229687A - Two-stroke internal combustion engine. : en fr
  • CH229798A - Rail connectors for electric railways. : de en
  • CH229584A - Method for fixing a metal closure member on a bottle or the like. : en fr
  • CH229598A - Centrifugal dust separator. : de en
  • DE741667C - Process for the production of good wettability of thin metal layers produced on a wax basis by cathode atomization or thermal metal vapor deposition : de en
  • DE741731C - Arrangement with a Braunschweig tube with first and second anode, especially for television purposes : de en
  • US2334322A - Drying rack for glue and the like : en
  • GB557306A - Rotary hydraulic pumps and motors : en
  • GB557423A - Improvements in or relating to curved printing members for rotary printing presses : en
  • DE741971C - Device for protecting and treating sensitive areas on the foot : de en
  • DK61564C - Procedure for the production of impregnated, rolled-up, fibrous electrical insulation material. : da en
  • DE741963C - Explosion-proof lamp : de en
  • GB557421A - Improvements to a prepayment telephone apparatus : en
  • GB557434A - Testing apparatus for ascertaining the balance of the blades of air screws : en
  • FR887698A - Vacuum relay : en fr
  • US2334236A - Coated cellulosic material : en
  • US2334655A - Rotary internal combustion engine : en
  • GB557344A - Improved device for levelling or stabilizing tables, stands, benches, scientific instruments and the like : en
  • US2334355A - Reinforced concrete structure : en
  • US2334641A - Oven broiler construction : en
  • US2334584A - Method of making electric coils : en
  • AU122449B2 - Distortion reduction on modulated amplifiers : en
  • CH229627A - Lock for recoil chargers with sliding barrel. : de en
  • CH229736A - A combination consisting of a rechargeable battery torch and a matching mains connection charger. : de en
  • GB557355A - Improvements in or relating to photographic processes : en
  • DE741846C - Zipper connection for rigid, flat components, especially on aircraft : de en
  • DE741861C - Spring-loaded, windowed band as a rotatable closure for openings in the housing or the end shields of electrical machines : de en
  • CA416471A - Sound record : en fr
  • FR887502A - Sweeping head for rock drills and rock drilling machines : en fr
  • AU117708B2 - Improved means for separating coarse gravel from adhering fine particles : en
  • CH229791A - Process for the preparation of a new ester. : de en
  • CH229629A - Automatic mass-locked firearm. : de en
  • AU117736B2 - Heat oxygen' treated polyamides : en
  • CH229777A - Process for the preparation of a sulfonamide derivative. : de en
  • US2334345A - Lighter for gas burners : en
  • US2334489A - Hairdressing apparatus : en
  • CH229670A - Hair clipper. : de en
  • CH229657A - Regulating device for resistance welding devices. : de en
  • DE741960C - Arrangement for displaying or counting the surge currents flowing in a line, in particular the discharge of a surge arrester : de en
  • AU117724B2 - An improvement in switches for electrical circuits : en
  • CH229713A - High voltage switch. : de en
  • CA416399A - Concentrated photographic syrup : en fr
  • US2334482A - Retractable and expansible inside screen for windows : en
  • US2334258A - Coating : en
  • US2334379A - Die : en
  • US2334436A - Joint for electrical fixtures : en
  • GB557414A - Process of removing acidic constituents from fluids : en
  • CA416470A - Die head : en fr
  • SE109077C1 - : sv
  • AU117738B2 - Keying method for radio transmitters : en
  • CA416476A - Metal separation by distillation : en fr
  • CA416495A - Home record suppressor : en fr
  • CH229630A - Automatic firearm with safety device against double loading. : de en
  • CH229753A - Relay breaker device on selector. : de en
  • US2334263A - Foraminous body and method of producing the same : en
  • USD136541S - Design for a dress : en
  • USD136512S - Cover opening key for waterproof watches or similar articles : en
  • DE741288C - Quotient measuring mechanism operated by direct current : de en
  • US2334407A - Lock opener : en
  • US2334549A - Refining mineral oils : en
  • USD136514S - Design for a milk bottle : en
  • DE741631C - Lifting device for heavy internal combustion rams : de en
  • DE742021C - Half mask for high altitude flyers : de en
  • US2334605A - Material gathering and loading machine : en
  • US2334286A - Aircraft : en
  • US2334645A - Foursquare sheet trimming machine : en
  • US2334653A - Core for glass molds : en
  • DK61575C - Blind. : da en
  • FR887687A - Character set for printing musical notes : en fr
  • DE741844C - Reflex camera with two mirrors set at an angle to each other : de en
  • US2334459A - Grade indicator for trenching machines : en
  • GB557360A - Improvements in and relating to the cooling of internal combustion engines : en
  • US2334566A - Lubricating oil : en
  • US2334669A - Mono-acyl derivatives of 2-methyl-1,4-naphthohydroquinone : en
  • US2334598A - Means for planting : en
  • FR887635A - Improvements made to bulbs for incandescent electric lamps or discharge tubes : en fr
  • CH229633A - Entrenchment device. : de en
  • USD136675S - Embroidered trimming or similar article : en
  • DE741778C - Hand protection for presses, especially those for paper processing : de en
  • DE742017C - Resin Plane : de en
  • CH229759A - Illuminated circuit diagram, produced using interchangeable units. : de en
  • DE741674C - Steering device for multi-axle log trailers : de en
  • US2334660A - Condenser and circuit therefor : en
  • DE741891C - Process for the preparation of water-soluble nitrogen-containing condensation products : de en
  • US2334481A - Teat cup unit : en
  • US2334527A - Camouflage pencil : en
  • FR887512A - Electronic microscope : en fr
  • FR887644A - Stereoscopic observation glasses : en fr
  • FR887509A - Bellows camera : en fr
  • FR887587A - Multipolar automatic circuit breaker : en fr
  • FR887555A - Process for manufacturing fine crystal superphosphate : en fr
  • FR887514A - Improvements made to amplitude limiters : en fr
  • DE741527C - Machine for processing an edging tape on the edge surface and on the edge parts of an insole : de en
  • USD136678S - Design fob a hat : en
  • US2334409A - Bottle carrier : en
  • DK61554C - Blank folder with slanted Blanket underlay. : da en
  • DE741676C - Measuring plug for liquor or similar bottles : de en
  • DE741796C - Boot puller in the shape of a bow : de en
  • GB557345A - Improvements relating to moulding plastic materials : en
  • US2334254A - Dry-shaving apparatus : en
  • US2334248A - Sole fitting machine : en
  • CA416460A - Assay crucible : en fr
  • US2334563A - Apparatus for recovering anhydrous sodium sulphate and similar substances : en
  • US2334353A - Knitting machine : en
  • AU613042A - Nitrogenous resinous compositions : en
  • US2334288A - Apparatus for the treatment of artificial materials : en
  • US2334337A - Separator and valve therefor : en
  • US2334546A - Package : en
  • US2334366A - Method of producing face clutches : en
  • US2334525A - Pump : en
  • US2334477A - Pencil holder and sharpening device : en
  • CH229723A - Circuit breaker with thermal release, which has a curved bimetal strip and a heating tube lying in the curve. : de en
  • CH229747A - Process for the preparation of ethyl- (4,4'-bis-oxy-coumarin) -3,3'-methane. : de en
  • CA416472A - Light-reflecting element : en fr
  • US2334174A - Transfer mechanism for cigar machines : en
  • DE741750C - Self-seller for issuing tokens : de en
  • GB557300A - Improvements in and relating to thread control mechanism for weft replenishing looms : en
  • GB557406A - Improvements relating to suction gas producers : en
  • CH229734A - Arrangement for grid control of mercury vapor valves. : de en
  • US2334609A - Core solder : en
  • US2334686A - Throttle : en
  • CA416416A - Telemetric system : en fr
  • CH229745A - Process for the preparation of a-chloro-B-methyl-e-caprolactam. : de en
  • US2334688A - Internal combustion engine and starting means therefor : en
  • US2334320A - Hub and plate assembly : en
  • US2334358A - Artificial cellulosic filament delustered with titanium salt : en
  • CA416501A - Malonic acid derivative : en fr
  • CH229647A - Watch. : en fr
  • US2334658A - Envelope machine attachment : en
  • US2334350A - Wear-resisting tool joint : en
  • CH229615A - Process for the production of nickel coatings on objects made of aluminum and aluminum alloys. : de en
  • CH229659A - Method and device for tempering and testing the weld seam on longitudinally welded pipes. : de en
  • DE741691C - Fine control for DC drives, especially for electric traction vehicles : de en
  • CH229576A - Installation for the ignition of a gasifier. : en fr
  • FR887639A - Method for adjusting the pressure of lubricating oil in particular in compressor combustion engines : en fr
  • FR887527A - Percussion fuze with safety in front of the muzzle : en fr
  • FR887558A - stabilized reactance lamp stage : en fr
  • US2334503A - Motor vehicle antenna : en
  • FR887656A - Process for the production of fiber plates : en fr
  • CA416418A - Two-way radio transmission : en fr
  • US2334269A - Geochemical prospecting method : en
  • DE741680C - Cantilever overburden conveyor bridge supported only on one side on the overburden side : de en
  • US2334474A - Shoe tip protector : en
  • US2334600A - Capsule : en
  • GB557365A - Improvements in or relating to washing machine and wringer cabinets : en
  • CH229768A - Method for repairing and vulcanizing vehicle pneumatics and device for carrying out the method. : de en
  • US2334214A - Carding device for artificial teeth : en
  • US2334225A - Lever opening container : en
  • US2334637A - Band tightening device : en
  • DE741737C - Basic materials for paints, impregnating agents or insulating compounds : de en
  • GB557411A - Improvements in and relating to aluminium stearate solutions and process of preparing the same : en
  • DK61581C - Air ring for vehicle wheels and procedure for its manufacture. : da en
  • US2334370A - Garment hanger : en
  • US2334501A - Room heater : en
  • US2334683A - Separation of materials : en
  • AU696142A - Improvements in photographic focal plane shutters : en
  • US2334518A - Rotary clothesline : en
  • CH229597A - Peeling machine, in particular for cereal grains. : de en
  • FR887615A - Liquid product to seal, to all types of pressure, all metal parts: ferrous, copper, light, etc. : en fr
  • DE741708C - V-belt made of roof tile-shaped pieces of leather lying on top of each other : de en
  • FR887691A - Device for increasing the sensitivity of electrical angle transmission installations : en fr
  • DE741813C - Suspension of caterpillar vehicles : de en
  • FR887562A - Transformer composed of two machines : en fr
  • FR887571A - Bauxite decomposition process : en fr
  • CA416401A - Clutch plate : en fr
  • US2334172A - Rubbing machine : en
  • US2334582A - Plasticizer : en
  • CA416392A - Hopper front box : en fr
  • CA416409A - Lantern slide projector : en fr
  • CH229649A - Device ensuring the tightness of a watch case at the point where it is crossed by a control member. : en fr
  • CA416439A - Container surplus fill draw-off means : en fr
  • DE741858C - Device for influencing the size of electrical currents : de en
  • US2334628A - Printing machine : en
  • US2334444A - Escapement action for grand pianos : en
  • US2334479A - Telltale device : en
  • US2334377A - Electric discharge system : en
  • US2334367A - Weighing scale : en
  • US2334386A - Pile apparatus : en
  • USD136680S - Design fob a vestee scarf : en
  • CA416485A - Oil well drilling fluid : en fr
  • DE741927C - Switching arrangement for resistance welding machines to compensate for fluctuations in the supply network : de en
  • DE741664C - V-belt connector : de en
  • DE741912C - Process for the production of carbon lamellas for a charcoal collector : de en
  • US2334315A - Dental amalgamator : en
  • CH229592A - Heel protection. : de en
  • CH229788A - Arrangement for the operation of converters in which a circuit break occurs mechanically. : de en
  • CA416429A - Dehydrator for liquid filled equipment : en fr
  • CH229569A - Oven attachment. : de en
  • DE741815C - Screwdriver-like tool for tightening screw nipples for wire spoke wheels : de en
  • DE741911C - Commutator for electrical machines : de en
  • GB557370A - Improvements in or relating to the manufacture of wall-boards, slabs or the like : en
  • CH229573A - Method for manufacturing a component and component manufactured according to the method. : de en
  • FR887670A - Method and device for examining the anatomical and physical properties of tissues on the living or dead organism : en fr
  • US2334496A - Fluid pressure regulator : en
  • US2334233A - Method of treating and shaping plastic material : en
  • US2334181A - Valve for road sanding machines : en
  • SE109039C1 - : en
  • CH229593A - Nails with a rectangular head base, in particular for shoes, and process for the manufacture thereof. : de en
  • FR887495A - Tube or other steel part with artificial material reinforcement : en fr
  • GB557386A - An improved apparatus for electrolytically treating metal : en
  • FR887536A - Process for manufacturing a cellulose hydrate fiber suitable for use : en fr
  • FR887572A - Sophisticated container, more specifically intended for beauty products and pharmaceuticals : en fr
  • DE741800C - Sensing device for machines controlled by count cards : de en
  • US2334543A - Electrical mechanism for remote indication of movement : en
  • CA416434A - Mould and mould form : en fr
  • CH229796A - Control device for the pressure medium of change-speed gear shifting devices whose clutches are actuated by pistons, in particular for motor vehicles. : de en
  • DE741777C - Pliers for bending open and removing wire staples : de en
  • DE741660C - Mower cutting unit with knives swinging back and forth : de en
  • FR887497A - Press for the manufacture of agglomerates of coal or similar products : en fr
  • US2334495A - Color photography : en
  • FR887459A - Boat propulsion device : en fr
  • AU117728B2 - Improved punt or pontoon : en
  • CA416371A - Aircraft pilotage control device : en fr
  • US2334597A - Wheel suspension : en
  • US2334185A - Internal combustion engine : en
  • DE741873C - Process for the production of feed from rapeseed, from their press cake or from their extraction meal with removal of the mustard : de en
  • US2334439A - Annealing stem : en
  • US2334526A - Abrasive article and method of making same : en
  • US2334256A - Method of and apparatus for making bags : en
  • CH229682A - Air conveyor. : de en
  • DE741849C - Welded or soldered connection for the production of wires, rods, rails, profiles or the like from composite materials : de en
  • FR887579A - Automatic constant pressure flow stabilizer : en fr
  • FR887600A - Method and device for eliminating the disturbance (strabic deviation) involved in the transmission and reception of wave energy : en fr
  • FR887457A - New cylindrical hearth for wood gasifiers : en fr
  • FR887636A - Process for the production of pentanediol-2. 4 : en fr
  • CA416497A - Message differentiation apparatus : en fr
  • DE741906C - Charging system for several batteries with a charging generator : de en
  • DE741817C - Process for manufacturing outsoles : de en
  • FR887621A - Switching device for alternating current : en fr
  • DE741685C - Process for the preparation of p-aminobenzenesulfonic acidicotinoylamide : de en
  • DE741704C - Device for cleaning a smoke heater by scraping it off : de en
  • DE741679C - Zipper : de en
  • DE741970C - Device for straightening and splinting broken tubular bones : de en
  • AU123829B2 - Improvements in or relating to dielectric compositions : en
  • FR887465A - New food products, in the form of balanced compounds according to the laws of physiology, as well as their manufacturing processes by association of yeasts with flours and similar products, in particular with wheat creams : en fr
  • GB557428A - Improvements in or relating to mole traps : en
  • GB557380A - Improvements in or relating to the reproduction of sound and light : en
  • AU630042A - Keying method for radio transmitters : en
  • FR887496A - Manufacturing process for press moldable materials : en fr
  • US2334278A - Drilling apparatus : en
  • US2334340A - Hydraulic shock absorber structure : en
  • US2334452A - Door opener : en
  • GB557353A - Improvements in buildings : en
  • GB557435A - A hydraulically actuated device for adjusting the blades of variable-pitch propellers, especially airscrews : en
  • DE741709C - Stuffing box seal with metallic chamber ring packings : de en
  • DE741854C - Circuit arrangements for devices for alternating current telegraphy : de en
  • DE741792C - Closed electrical machine with circulation cooling : de en
  • US2334529A - Girdle : en
  • US2334588A - Leather rolling machine : en
  • US2334175A - Deicer for aircraft propellers : en
  • US2334192A - Preparation of alpha-cyanobutadiene : en
  • CH229589A - Electric lighting device on a sewing machine. : de en
  • CH229700A - Press collector with metallic reinforcement rings. : de en
  • AU117702B2 - Improvements in and relating to static voltage regulators : en
  • GB557412A - Improvements in or relating to time fuzes for aerial bombs, flares and the like : en
  • US2334580A - Flush type door handle : en
  • FR887491A - Dough preheater : en fr
  • FR887557A - Crossing branch pliers : en fr
  • FR887625A - Oxidation products of aldehyde resins and their preparation process : en fr
  • FR887582A - Two-piece tubular guide, especially for carburetor and mixer pulls : en fr
  • AU738642A - An improvement in switches for electrical circuits : en
  • FR887476A - Process for manufacturing artificial leather, in particular for soles and the like : en fr
  • US2334625A - Turbomachine : en
  • FR887454A - Improvements to Articulated Rigid Sole Shoes : en fr
  • FR887651A - Device for checking the concentricity and dimensions of machined parts using measuring instruments : en fr
  • US2334562A - Electric contact element : en
  • CA416492A - Circuit breaker : en fr
  • DE741726C - Arrangement for regulating to constant power in electrical supply circuits : de en
  • FR887586A - Temperature control installation : en fr
  • FR887682A - Centrifugal device for the separation of foreign bodies contained in gases : en fr
  • DE741756C - Sack, especially made of paper or the like. : de en
  • US2334211A - Gas generator : en
  • USD136673S - Design for a rule : en
  • DE741876C - Control device for stepless control of a direct current as a function of a measured or control value : de en
  • CA416375A - Photographic camera : en fr
  • CH229575A - Electric melting furnace for making glass, water glass, etc. : de en
  • USD136672S - Design fob a window shade pendant : en
  • US2334656A - Race track : en
  • DE741647C - paint : de en
  • CA416384A - Electro-acoustic system : en fr
  • CH229600A - Device for generating chemical reactions in a flowing gas by means of high-frequency electrical discharges. : de en
  • CH229669A - Razor blade holder. : de en
  • FR887622A - Method and device for making and photographic reproduction of plans, drawings, etc. : en fr
  • GB557296A - Improvements in or relating to engine starter gearing : en
  • US2334500A - Neutralization of aromatic sulphonic acids : en
  • CH229721A - Electric overcurrent switch. : de en
  • CA416395A - Safety shirt for infants : en fr
  • FR887578A - Synchronous trip unit for load inverters of step regulators, in particular for adjustable transformers and the like : en fr
  • CH229611A - Process for the production of a liquid adhesive. : de en
  • CA416376A - Textile yarn or thread : en fr
  • CA416490A - Succinic anhydride manufacture : en fr
  • CH229720A - Electric switch. : de en
  • CA416483A - Door lock extension : en fr
  • CH229588A - Spool storage in web shuttle. : de en
  • US2334573A - Fluid coupling : en
  • US2334596A - Drip receitacle for umbrellas : en
  • FR887488A - Starting device for internal combustion engines : en fr
  • CH229783A - Method for controlling copy milling machines. : de en
  • US2334429A - Orienting apparatus : en
  • US2334531A - Applicator : en
  • US2334671A - Machine for making electrical strain gauges : en
  • US2334255A - Neutralizer composition : en
  • US2334411A - Driving aid for motorists : en
  • CH229587A - Process for the production of a cellulose solution by recycling the cotton textiles from worn rubber products, such as. B. rubber tires of vehicles, conveyor belts and. a. : de en
  • CH229683A - Rotating piston pump. : de en
  • CH229742A - Process for the production of anti-rachitic products. : de en
  • FR887515A - Process for obtaining iodine and potassium salts from the fine dust of blast furnaces : en fr
  • US2334296A - Apparatus for converting edible compositions : en
  • FR887549A - Improvements to so-called backplane electrical windings : en fr
  • US2334161A - Bottle crate : en
  • US2334267A - Circuit breaker : en
  • US2334329A - Variable aperture for optical projectors : en
  • CH229749A - Means for generating heat. : de en
  • CH229785A - n-fold parallel winding (n = whole number> 1) for single and multi-phase AC commutator machines. : de en
  • CA416410A - Air conditioning apparatus : en fr
  • DE741847C - Process for the automatic control of the weight of the heavy fluid in the circuit in the sink and float treatment of grainy material : de en
  • FR887631A - Hydraulic press in which the pressing piston is coupled to a ram : en fr
  • DE741959C - A device consisting of a flashlight with a built-in accumulator and an alternating current mains connection charger carried by the pins of a plug contact : de en
  • FR887528A - Electric lawn mower : en fr
  • ES7909U - Glass bottle that prevents filling by ordinary means. (Machine-translation by Google Translate, not legally binding) : en es
  • FR887607A - Hydraulically controlled variable crank : en fr
  • FR887523A - Gas power plant and gas supply process : en fr
  • DE741639C - Pressure element for brush holder : de en
  • AU728242A - Improved punt or pontoon : en
  • AU731942A - Improved concrete mixture and process for its preparation : en
  • CA416510A - Scraping tool : en fr
  • FR887508A - Wind motor : en fr
  • DE741841C - Multi-channel recording of tones or sound streams : de en
  • DE741900C - Procedure for operating storage image decomposition tubes : de en
  • DE741930C - Power transmission device on motor-driven chain saws : de en
  • DE741673C - Photographic enlarger with photoelectric exposure meter : de en
  • FR887544A - Process for electrothermally obtaining volatile metals at their reduction temperature, by reduction of their oxides with carbon : en fr
  • GB557415A - Manufacture of azo pigments : en
  • CA416397A - Regulating transformer : en fr
  • CA416449A - Insulating coupling : en fr
  • CH229681A - Pressure cylinder for hydraulically operated machines. : de en
  • FR887453A - Wall system with low thickness and high thermal and sound insulation rendering : en fr
  • US2334162A - Prepaeaxion of z-ameno-l : en
  • US2334576A - Mining apparatus : en
  • CA416445A - Slag control apparatus : en fr
  • CH229673A - Button. : en fr
  • US2334368A - Feeder : en
  • US2334617A - Oil burner extension for furnaces : en
  • CH229714A - Remote timer switch with drive motor. : de en
  • GB557398A - Improvements in and relating to catapult spools for aircraft : en
  • DE741889C - Procedure for carrying out the suction with interrupted chamber furnaces : de en
  • US2334303A - Means for closing and leakage testing of well equipment : en
  • DE741735C - Process for the production of Kuepen dyes of the dibenzpyrenquinone series : de en
  • DK61580C - Rubber article with bracing insert. : da en
  • GB557316A - Improvements in or relating to hydraulic control devices : en
  • NL55434C - : en
  • DE741902C - Circuit arrangement for simultaneous automatic bass boost and cutting of the upper frequencies in the low-frequency part of radio receivers : de en
  • AU655442A - Improvements insanitary napkins : en
  • DE741683C - Process for the preparation of primary amines : de en
  • FR887657A - Method and device for producing artificial filaments by the vacuum dry spinning process : en fr
  • GB557327A - Improvements relating to thermostats : en
  • DE741666C - Process for the electrolytic removal of contaminants deposited on valve cones, in particular exhaust valves, of high-quality internal combustion engines : de en
  • CH229618A - Apparatus for applying wire clips. : de en
  • CH229711A - Electrical signaling system. : de en
  • US2334492A - Decorative illuminating device : en
  • FR887542A - Electro-mechanical striker tool control : en fr
  • FR887641A - Process for the preparation of compounds of the cyclopentanopolyhydrophenanthrene series in which the c ring carries oxygen or oxygenated groups : en fr
  • US2334512A - Repair last : en
  • CH229679A - Crank drive without dead centers. : de en
  • US2334294A - Apparatus for lining pipe : en
  • US2334396A - Packing gland for centrifugal pumps : en
  • US2334544A - Machine tool : en
  • AU662242A - An improved method of and apparatus for making plywood with thermosetting glue : en
  • CH229678A - Device for cutting pipes from non-metallic building materials. : de en
  • US2334202A - Method of ornamenting fabric : en
  • US2334374A - Implement support for vehicles : en
  • US2334522A - Tank trailer : en
  • US2334249A - Gyro wheel : en
  • CA416393A - Partial denture : en fr
  • CH229727A - Vacuum vessel with feed-throughs for electrical current. : de en
  • CH229764A - A method of manufacturing vehicle bodywork and bodywork obtained by this method. : en fr
  • USD136525S - Design fob a hat : en
  • DE741767C - Thread overflow rollers for the treatment of artificial silk threads : de en
  • FR887696A - Condenser microphone : en fr
  • US2334314A - Fuel burner : en
  • US2334472A - Toy horse and dog : en
  • US2334406A - Roofing and packing nail : en
  • FR887501A - : fr
  • DE741415C - Hiking pillar : de en
  • DK61551C - Tool for Deep Drilling. : da en
  • GB557381A - Improvements relating to the handling or conveying of potatoes and like starch bearing vegetables : en
  • DE741690C - Soil cultivation equipment, in particular for the production of runways for airfields : de en
  • FR887674A - Remote measuring device using the pulse phase method : en fr
  • FR887681A - Process for the preparation of p-aminobenzenesulfonylguanidine : en fr
  • FR887481A - Support plate or frame for an electrical device in which high-frequency currents flow : en fr
  • US2334343A - Steering apparatus : en
  • US2334417A - Hair curling pad : en
  • US2334430A - Calculating machine : en
  • US2334585A - Laminated rubber hydrohalide and cellulose acetate tape : en
  • DE741486C - Conveyor device for electrical collector plates : de en
  • US2334410A - Translucent bottom handbag : en
  • DE741770C - Process for the production of shaped masses from cellulose esters or ethers : de en
  • DE741725C - Device for expanding the control range of automatically working electrical voltage regulators : de en
  • DE741878C - Device for enabling and monitoring the subsequent rotation of an axis to a position that corresponds to the position of a remote encoder : de en
  • GB557405A - Improved mandril : en
  • US2334205A - Selective switching : en
  • US2334638A - Bottle carrier : en
  • FR887598A - Very high voltage and very high power transformer for rail transport : en fr
  • USD136536S - Design for a fence stretcher : en
  • FR887624A - Hot gas engine : en fr
  • DE741287C - Commutator held together by synthetic molding compound : de en
  • DE741793C - Rectifier system with means for fine voltage regulation : de en
  • FR887660A - Apparatus for mechanically packaging determined weights of powdery material : en fr
  • NL55474C - : en
  • DE741649C - Process for the finishing of any pretreated, more or less long vegetable or cellulose fibers : de en
  • DE741710C - Two-plate gate valve : de en
  • GB557375A - Improvements relating to rot-proofing of vegetable fibres : en
  • GB557441A - Sewing machines : en
  • CH229636A - Device for dosing gaseous, light and viscous and powdery substances. : de en
  • US2334365A - Electrical transcribing machine : en
  • DE741760C - Terrain and road bike with adjustable tread blades : de en
  • CH229603A - Process for the production of lithium sulfate. : de en
  • CA416420A - Electrical apparatus : en fr
  • CH229677A - Shaft coupling. : de en
  • CH229779A - Process for the preparation of a sulfonamide derivative. : de en
  • CH229730A - Electron tube. : de en
  • AU734742A - Abrasive articles bonded with synthetic rubber : en
  • CA416450A - Valve : en fr
  • US2334332A - Repeating toy gun : en
  • CH229701A - Device for keeping constant a DC voltage applied to a consumer. : de en
  • CH229582A - Distributor of saccharin and other products in pills or powder. : en fr
  • CH229652A - Process for the production of workpieces by metal-ceramic methods. : de en
  • USD136677S - Tsongas airplane : en
  • FR887594A - Process for the production of cathodes covered with a smooth emission layer for electric discharge tubes : en fr
  • DE741933C - Device for testing the corrosive effect of liquids on materials : de en
  • DE741936C - Welded valve housing composed of pressed parts for a streamlined valve : de en
  • US2334372A - Die-casting machine : en
  • US2334391A - Drastically oxidized water-insoluble oxyalkylated triricinolein and method of making same : en
  • US2334564A - Antioxidant composition : en
  • USD136521S - Design for a lighting fixture : en
  • CH229571A - Electric radiator. : de en
  • NL55436C - Device provided with one or more discharge tubes for voltage of the order of 1000kv and higher : en nl
  • DE741675C - Mixing device for the production of fuel-oil mixtures : de en
  • US2334537A - Control system : en
  • CH229716A - Circuit breakers, especially for direct current. : de en
  • DE741697C - Time relay arrangement, especially for feed controls of machine tools : de en
  • CH229644A - Optical device for reflex camera. : en fr
  • US2334250A - Metal cutting or notching machine : en
  • US2334349A - Oil seal construction : en
  • US2334485A - Apparatus for combining materials : en
  • US2334206A - Elastic garment and method of producing same : en
  • US2334425A - Carton : en
  • US2334565A - Lubricating composition and pour depressor therefor : en
  • CA416390A - Dispensing container : en fr
  • CA416419A - Gas generator unit : en fr
  • CH229605A - Process for the production of practically pure sulfonic acids. : de en
  • CH229698A - High voltage and power transformer. : de en
  • FR887550A - Portion packaging : en fr
  • GB557387A - Improvements in or relating to fourdrinier paper-making machines : en
  • CA416441A - Compressor for braking systems : en fr
  • DE741327C - Counter-current braking circuit for three-phase motors : de en
  • GB557321A - Cable oil and insulating material impregnated therewith : en
  • US2334179A - Regulating and control circuit : en
  • CH229692A - Hot gas engine with a recuperator. : de en
  • DE742022C - Cartridge magazine in which a cartridge pusher loaded by a driving force moves a row of cartridges in circular or spiral guides and the cartridges move in the magazine : de en
  • FR887652A - Airplane training : en fr
  • USD136674S - Embroidered trimming or similar article : en
  • US2334511A - Conveyer : en
  • US2334196A - Track shoe : en
  • US2334283A - Decollating machine : en
  • CA416469A - Glass ampoule trimming machine : en fr
  • CH229729A - Electron tube. : de en
  • CA416423A - Motor control connection : en fr
  • CA416435A - Registration control apparatus : en fr
  • CA416385A - Boiler : en fr
  • CH229744A - Process for the preparation of a benzene sulfamide derivative. : de en
  • CH229617A - Device on covers for letters and packs for tearing open the covers. : de en
  • CH229631A - Self-loading firearm with safety device. : de en
  • DE741883C - Process for the preparation of cement raw materials with regulation of the mixture composition by electrostatic separation of certain mixture components : de en
  • FR887616A - Triple action braking device, in particular for trains of motor vehicles : en fr
  • CH229579A - Installation comprising an acetylene generator. : en fr
  • CH229754A - Tunable oscillation circuit for ultra-short waves. : de en
  • CH229568A - Device for tensioning holding wires for cladding by twisting them together for concrete work. : de en
  • DE741733C - Arc furnace : de en
  • FR887677A - Syringe for medical use and sterilization container : en fr
  • DE741724C - Electromotive controller for large adjustment forces : de en
  • USD136517S - Design fob a hat : en
  • DK61567C - Electrolyte Capacitor and Procedure for Its Manufacture. : da en
  • FR887634A - Propeller adjustment device : en fr
  • GB557343A - Improvements relating to the supporting of building guttering : en
  • US2334229A - Preparation of fluorophenols : en
  • DE742024C - Process for the production of highly refractory bricks using low-burn magnesia rich in iron oxide : de en
  • FR887475A - Gaskets and gasket plates : en fr
  • DE741645C - Process for the preparation of polymethine dyes : de en
  • FR887628A - Sliding pinion gearbox engaged by simple translation : en fr
  • FR887697A - Frequency modulation : en fr
  • GB557364A - A process for the manufacture of resinous condensation products : en
  • FR887617A - Alphabetical transpositor for teleprinter : en fr
  • GB557376A - Improvements relating to joints in hypodermic syringes or like medical syringes : en
  • GB557403A - Improvements in or relating to wooden propellor blades for aircraft : en
  • DE741655C - Drawer for tables, cupboards or the like. : de en
  • FR887678A - Process for treating beer with adsorbents : en fr
  • GB557369A - Improvements relating to multi-ply textile fabrics and articles made therefrom : en
  • FR887535A - Device for rotating the rotors of turbo-machines in order to prevent them from heating up or cooling down on one side : en fr
  • DE741835C - Process for regulating the current in the consumer circuit of grid-controlled gas or vapor arc discharge paths : de en
  • US2334521A - Bridge : en
  • CH229699A - Superimposition device for external alternating currents through two synchronously driven double-fed induction machines. : de en
  • CH229756A - Device for controlling, by a clockwork movement, an electric circuit periodically actuating a signal. : en fr
  • FR887577A - Device for carrying out catalytic gas reactions under pressure : en fr
  • DE741627C - Hand-held device for marking and measuring the length of weaving defects on running textile webs : de en
  • DE741776C - Roller for printing machines : de en
  • CH229757A - Synchronizing device on switching mechanisms for displaying numbers. : de en
  • CA416396A - Alloy : en fr
  • DK61553C - Method of Manufacturing Sheet Metal Radiators. : da en
  • GB557318A - Improvements in or relating to holders, cases or containers for lipstick : en
  • US2334272A - Feed plunger construction for bar stock feed mechanism : en
  • CH229737A - Lighting system with lights fed directly from the lighting network, connected in series and equipped with incandescent lamps. : de en
  • AU117707B2 - Frequency modulation : en
  • CH229696A - Electric collector. : de en
  • CA416508A - Textile material colouring method : en fr
  • DE741682C - Process for the dehydrogenation of saturated hydrocarbons : de en
  • CH229765A - Rim side ring. : en fr
  • US2334514A - Electrical relay : en
  • US2334679A - Flow control of fuel : en
  • USD136654S - Phonograph record rack : en
  • FR887688A - Method and means for increasing the efficiency of spray slurries containing copper : en fr
  • US2334289A - Arrangement for charging secondary electric batteries : en
  • US2334351A - Motion picture theater : en
  • US2334551A - Telegraph system : en
  • AU117729B2 - Inductance apparatus : en
  • CA416468A - Container closure : en fr
  • US2334581A - Cross-feed for grinding machines : en
  • USD136528S - Design for a novelty pin : en
  • US2334648A - Method of spray-coating articles : en
  • US2334421A - Transmission control : en
  • US2334466A - License plate : en
  • US2334232A - Conditioning apparatus : en
  • DE741634C - Grid electrode for electrical collectors : de en
  • DE741947C - Reinforcement cage for site posts : de en
  • DE741995C - Washer and spin dryer for laundry : de en
  • US2334188A - Fastening device : en
  • GB557349A - Improvements in or relating to the treatment of rosin : en
  • NL56277C - : en
  • DE741762C - Process for the production of silver preparations with a low baking temperature for ceramic objects : de en
  • DE742042C - Sintered hard metal alloys : de en
  • US2334675A - Loom shuttle : en
  • GB557418A - Improvements relating to sliding clasp fastener closures : en
  • DE741684C - Process for the production of pure water-soluble amino acids : de en
  • GB557294A - Improvements in photographic sensitizing dyes and in silver salt emulsions containing them : en
  • DE741677C - Union clamping lock for crates, boxes, suitcases, etc. like : de en
  • FR887679A - Injection pump, especially for internal combustion engines : en fr
  • US2334392A - Hat package : en
  • US2334574A - Selective signaling system : en
  • US2334560A - Pole attachment suspension clamp for aerial wires and cables : en
  • US2334633A - Unloading mechanism : en
  • CH229667A - Grinding machine. : de en
  • FR887543A - Variable pitch propellers, rotating in reverse direction : en fr
  • DE741765C - Projection method : de en
  • DE741787C - Overlay microphone with cardioid directional characteristic : de en
  • DE741773C - Process for the production of ceramic products, particularly those containing mullite, from alumina hydrate : de en
  • US2334352A - Fastener : en
  • DE741687C - Process for the preparation of aryl ether carboxylic acids and their salts : de en
  • DE741943C - Noiseless, automatic ratchet drive, especially for freewheeling hubs on bicycles : de en
  • DE741946C - Termination for wire ropes : de en
  • CA416436A - Charcoal gas producer : en fr
  • FR887614A - Airplane with arrow-shaped wings : en fr
  • DE742023C - Method of delaying the setting of plaster of paris : de en
  • FR887469A - Light filter : en fr
  • DE741323C - Contact line system : de en
  • DE741842C - Fuel injector : de en
  • US2334194A - Black-out system : en
  • US2334484A - Acoustical assembly : en
  • CA416413A - Oven door : en fr
  • AU117727B2 - Bimetals : en
  • CH229685A - Slurry pump. : de en
  • CA416465A - Calculating machine : en fr
  • CH229686A - Bucket for rotary machines. : de en
  • CH229712A - Time switch. : de en
  • GB557307A - Improvements in and relating to thermal cutting devices : en
  • DK61561C - Selector of the Type used in automatic Telephone Systems. : da en
  • FR887610A - Process for the desalination of water using cation exchangers and anion exchangers : en fr
  • US2334335A - Loading beam : en
  • US2334561A - Air duct : en
  • CH229577A - Equipment on wood and charcoal gas generators for the removal, cleaning and cooling of the gas produced. : de en
  • FR887606A - Process for extracting the acetone preparation from ammonium acetate : en fr
  • US2334554A - Method of producing blocking layer devices : en
  • FR887486A - Wire mesh mannequins for clothing : en fr
  • FR887664A - Wooden sole support for shoes and slippers : en fr
  • DE741577C - Carding device for loosening fiber material : de en
  • DE741663C - V-belt connecting plate with engagement means : de en
  • GB557301A - Improvements in and relating to electric lamp sockets : en
  • US2334473A - Frequency modulation tuning indicator : en
  • CH229624A - Climbing device on skis. : de en
  • DE741768C - Process for the production of rayon crepe thread : de en
  • GB557330A - Improvements in or relating to roller tube expanders : en
  • AU652242A - Improvements in or relating tothe manufacture of sponge rubber from aqueous dispersions of rubber : en
  • US2334498A - Garment : en
  • GB557333A - Improvements in or relating to buttons : en
  • US2334246A - Cutting tool : en
  • US2334451A - Manufacture of metallic magnesium : en
  • DE741786C - Television scanning arrangement in which the light beam scanning the image is also used to generate synchronizing characters : de en
  • US2334646A - Guideless jointed cane fishing pole : en
  • US2334210A - Manganese electrolyte purification : en
  • FR887643A - Compressed air heater for air hammers and other compressed air powered machine tools : en fr
  • FR887626A - Gas inlet device for internal combustion engine mixers : en fr
  • US2334177A - Continuous strip pickling : en
  • US2334631A - Base structure for electrical devices : en
  • CH229586A - Working machine for processing and roasting flax. : de en
  • CA416484A - Well drilling fluid : en fr
  • US2334316A - Electric burglar alarm : en
  • CH229719A - Load switching arrangement on step control devices of transformers and chokes. : de en
  • AU598942A - Inductance apparatus : en
  • US2334265A - Control for book-sewing machines : en
  • CH229776A - Process for the preparation of pregnendione benzylenol ether. : de en
  • DE741718C - Glaettkalender : de en
  • FR887470A - Manufacturing process for 1-oxyphenyl-3-aminobutane derivatives : en fr
  • US2334271A - Checking pencil : en
  • US2334677A - Snap hook : en
  • US2334261A - Typewriting machine : en
  • CA416386A - Hoisting apparatus : en fr
  • DE741427C - Frequency division method : de en
  • DE741924C - Short wave tubes with brake grille : de en
  • CA416482A - Door knob fastener : en fr
  • US2334359A - Side cutter bearing : en
  • CA416464A - Line justifying device : en fr
  • CA416402A - Polymerizable composition : en fr
  • DE742033C - Alternating current generator, in particular a hand-operated crank inductor : de en
  • US2334311A - Lady's wearing apparel : en
  • DE741975C - Method and device for the production of composite castings : de en
  • CH229704A - Plug device for electrical currents of all types and outputs. : de en
  • US2334276A - Tool head : en
  • GB557357A - Improvements in and relating to electric control systems : en
  • FR887612A - Drum-shaped rotor for centrifugal pumps for liquids or gases : en fr
  • GB557332A - Improvements relating to supporting arrangements for electric circuit conductors : en
  • GB557340A - Improvements in and relating to hydraulic piston valves : en
  • DE741909C - Control circuit for regulating DC motors in Leonard drives : de en
  • US2334364A - Surface treating machine : en
  • USD136683S - Design for a question and answer booklet : en
  • CH229664A - Process for the diffusion of silicon in workpieces made of iron, steel or their alloys. : de en
  • US2334298A - Combination display fan : en
  • CH229570A - Process for preheating the combustion air from combustion systems conveyed by means of a fan and device for carrying out this process. : de en
  • CH229658A - Control unit for resistance welding installation. : en fr
  • IE17909L - Sealing glass parts of vessels : en
  • CA416507A - Textile material processing : en fr
  • DE741703C - Mold for air-cooled rib cylinders : de en
  • US2334395A - Fire hose nozzle : en
  • DE741688C - Process for the preparation of 2, 5, 7, 8-tetramethyl-2- (4 ', 8', 12'-trimethyl-tridecyl) -6-aminochroman : de en
  • FR887602A - Sleeve for cables with artificial sheaths : en fr
  • GB557346A - New or improved calender and process for making sheets from plastic compositions : en
  • DE741882C - Lever escapement for balance clocks : de en
  • US2334394A - Transmission : en
  • US2334388A - Attachable side wall for tires : en
  • US2334331A - Evaporator header construction : en
  • USD136660S - Scratch pad holder or similar article : en
  • US2334346A - Valve : en
  • US2334590A - Bird cage feeder : en
  • US2334203A - Spark plug : en
  • CA416372A - Ship protecting apparatus : en fr
  • CA416377A - Tubing coating apparatus : en fr
  • US2334237A - Refrigerating apparatus : en
  • US2334542A - Apparatus for producing nubbed yarns : en
  • US2334659A - Footwear : en
  • US2334670A - Radio amplifying circuit : en
  • DE741915C - Rectifiers and inverters for very high voltage : de en
  • CH229792A - Process for the preparation of a derivative of p-aminobenzenesulfonamide. : de en
  • CH229641A - Electric heating device with at least one switch. : de en
  • DE741665C - V-belt connection : de en
  • DE741967C - Clamping device for an electric butt welding machine for clamping thin-walled pipes : de en
  • FR887686A - High Frequency Coaxial Cable End Closure : en fr
  • CA416381A - Skull fitting hat : en fr
  • USD136663S - Design for an electron discharge device : en
  • US2334208A - Plural power operated mechanism : en
  • US2334506A - Railway traffic controlling apparatus : en
  • US2334228A - Process of producing an intimate mixture between a mass of loose material and fluid or fluids : en
  • US2334273A - Piston ring : en
  • US2334676A - Rotary operative fastener : en
  • CH229662A - Process for the production of serrations on circular workpieces using the screw generating process. : de en
  • DE741629C - Device for exchanging fumes with sheet-like materials : de en
  • FR887690A - Annular voltage distributor for assemblies supplied by alternating currents : en fr
  • US2334319A - Ceramic denture material and denture or denture part : en
  • AU567442A - Masking or screening devices for lamps : en
  • CH229743A - Process for the preparation of a benzene sulfamide derivative. : de en
  • FR887484A - Wind motor : en fr
  • GB557420A - Improvements in and relating to knitted and woven fabrics : en
  • CH229761A - Light change number. : de en
  • CA416408A - Lantern slide holder : en fr
  • CA416430A - Time switch mechanism : en fr
  • US2334589A - Binding machine : en
  • USD136656S - Design for a condiment bottle : en
  • DE741932C - Detector tubes for gas detectors : de en
  • CA416487A - Oil recovery from oil sands : en fr
  • CH229578A - Filling compound for use between the stove and the stove jacket in gas generators. : de en
  • CH229769A - Direction indicators for bicycles and motorcycles. : de en
  • US2334523A - Speed violation counter : en
  • US2334626A - Assembly machine : en
  • US2334306A - Cracking hydrocarbon oils : en
  • US2334361A - Heating unit : en
  • DE739550C - Cases made of vulcanized fiber, hard cardboard or the like : de en
  • US2334513A - Control timer for refrigerating systems : en
  • FR887455A - Electric boiler : en fr
  • FR887692A - Tunable radio-electric device : en fr
  • FR887556A - Steel melting furnace with recuperator, in particular with metal recuperator, and method of operating the furnace : en fr
  • FR887669A - Manufacture of molded masses : en fr
  • FR887462A - High precision electric chronometry system and its applications : en fr
  • FR887583A - Safety device for container valve intended in particular for protective breathing apparatus : en fr
  • USD136539S - Design for a blind flying hood : en
  • AU117714B2 - Nitrogenous resinous compositions : en
  • DE742040C - Device for pattern-measured release of the adjusting members of jacquard devices, z. B. of jacquard Petinet devices on flat weft knitting machines : de en
  • FR887485A - Mixer for gasifiers : en fr
  • DE741799C - Device for determining the angular position of balancing weights to be attached to the circumference of rotating bodies to be balanced : de en
  • FR887494A - Instrument for objectively determining the adaptation of ocular vision to darkness : en fr
  • CA416387A - Photographic apparatus : en fr
  • CA416389A - Dispensing container : en fr
  • CA416426A - Dynamo regulator : en fr
  • DE741782C - Process for the production of a non-dusting fertilizer by drying separating sludge : de en
  • DK61556C - Process for the production of anhydrous sodium pyrosilicate. : da en
  • GB557401A - Improvements in or relating to milling machines : en
  • DE727017C - Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts : de en
  • DE741952C - Handle attachment to brushes or the like with an internally threaded bushing embedded in the bristle wood : de en
  • US2334618A - Platform rocker : en
  • GR10185B - ELECTRICAL SYSTEM REGULATING THE MOVEMENT OF THE PUBLIC IN CINEMAS. : el en
  • CH229621A - Galileo viewfinder on a photographic recording device, in which a mark is reflected in the viewfinder image field by optical means. : de en
  • FR887468A - Piston shut-off valve : en fr
  • CH229772A - Self-propelled traction vehicle. : en fr
  • US2334287A - Pilotage watch : en
  • FR887505A - Folding machine for sheets or bundles of sheets : en fr
  • CA416455A - Grinding machine table stop and mechanism : en fr
  • US2334418A - Signal light construction : en
  • CH229604A - Process for the preparation of ketols of the cyclopentanopolyhydrophenanthrene series. : de en
  • DE741996C - Laundry press with a press piston that can be moved by fluid pressure : de en
  • CH229595A - Method for treating cheese during maturation storage and device for carrying out the method. : de en
  • CH229694A - Container for cooling food with a cooling medium. : de en
  • US2334455A - Disk harrow : en
  • FR887640A - Industry for artificial textile yarns and its manufacturing process : en fr
  • US2334673A - Wheel : en
  • DE739792C - Self-actuating firearm that works according to the gas pressure loader system : de en
  • US2334428A - Well device : en
  • CH229689A - Aviation piston internal combustion engine system. : de en
  • DE741784C - Teleprinters in which the characters are given by revolving organs that can be coupled at the beginning of each scanning or recording line and are recorded by a continuously revolving writing spindle that is synchronous or almost synchronous with the encoder drive : de en
  • US2334450A - Closing and cleaning attachment for extensible window screens : en
  • USD136537S - Design for a loud-speaker or the like : en
  • CA416461A - Stapling machine : en fr
  • US2334170A - Process and apparatus for making gut strings : en
  • US2334330A - Folding umbrella : en
  • US2334376A - Seeder : en
  • US2334412A - Writing device : en
  • US2334685A - Method of making button stays : en
  • US2334325A - Continuous spinning : en
  • USD136682S - Design for a dress : en
  • US2334480A - Illuminating device : en
  • US2334594A - Lubricant composition : en
  • CA416453A - Motor vehicle window regulator : en fr
  • US2334389A - Ester and method of making same : en
  • US2334426A - Latch : en
  • US2334469A - Induction compass : en
  • DK61559C - Wheel keys for generating contact impulses. : da en
  • US2334290A - Toy : en
  • CH229706A - Two-part cover hinge on boxes of electrical distribution systems. : de en
  • CA416368A - Scriber : en fr
  • CH229638A - Arrangement for generating a time-proportional deflection voltage for the recording of one-off processes by means of a cathode ray tube. : de en
  • CA416479A - Thermionic valve cathode sleeve : en fr
  • GB557390A - Improvements in and relating to harvest binding machines : en
  • GR10184B - PORTABLE REMOVABLE BATHROOM ASSEMBLY SYSTEM. : el en
  • US2334569A - Button or the like sewing machine : en
  • USD136530S - Van sloten : en
  • FR887658A - Method and apparatus for producing isoximes continuously : en fr
  • CH229766A - Air pump drive for bicycles. : de en
  • FR887581A - Needle for knitting machines : en fr
  • DE741744C - Magnetic conductor : de en
  • DE741928C - Burner arrangement for gas-heated devices : de en
  • DE741982C - Procedure for the identification of light metals and their alloys : de en
  • CA416373A - Dowel pin : en fr
  • CH229735A - Portable electric lamp. : en fr
  • USD136659S - Design for a screw plug : en
  • US2334183A - Expansion joint : en
  • FR887489A - Process for preparing silver halide emulsions : en fr
  • US2334327A - Method and apparatus for the regeneration of preserved foods, nutriments, and like materials : en
  • US2334216A - Temperature control system : en
  • US2334445A - Air-conditioning system : en
  • DE742043C - Measuring and sorting device : de en
  • US2334369A - Apparatus for supporting and spacing reinforcing devices : en
  • US2334550A - Fuse block : en
  • GB557298A - A transparent protective shield for the eyes and face : en
  • US2334610A - Mirror and supporting arrangement : en
  • US2334630A - Vulcanization of rubber : en
  • CH229690A - Fuel control device on injection internal combustion engines. : de en
  • DE741702C - Mold for air-cooled rib cylinders : de en
  • DE741730C - Magnetic field tubes : de en
  • DE741748C - Device for taking samples of beetroot from Ruebenwagen to determine the adhering dirt : de en
  • US2334615A - Continuous spinning of cellulose solutions in strong mineral acids : en
  • US2334408A - Process for making chlorinated phenol-aldehyde condensation products : en
  • US2334424A - Protector : en
  • DE741764C - Cart drive device for two-turn high-speed presses : de en
  • DE741957C - Electric circuit breaker for high voltage direct current : de en
  • FR887569A - Process for making bread and other pastries in molds : en fr
  • CH229709A - Breaking device for electric current. : de en
  • CH229767A - Device on vehicles to keep the pressure constant in their tires. : de en
  • DE741885C - Sensor for metal presses, especially for extrusion presses : de en
  • US2334347A - Power mechanism for steering apparatus and the like : en
  • USD136524S - Design for a ring box or the like : en
  • FR887472A - : fr
  • GB557419A - Improvement in process and apparatus for forming seams in sheets and films of thermoplastic materials : en
  • CA416505A - Corner stud : en fr
  • GB557305A - Improvements in educational appliances : en
  • CA416456A - Grinding machine stop mechanism : en fr
  • FR887503A - Improvements to air inlet nozzles for gasifiers : en fr
  • CH229596A - Process for making a puffed wheat product. : de en
  • US2334657A - Engine starting mechanism : en
  • USD136662S - Design fob a vegetable grater : en
  • GB557399A - Improvements in or relating to contact photographic printing apparatus : en
  • GB557392A - Improvements in or relating to agricultural implements : en
  • DE741290C - Arc welding device for alternating current with a consumable electrode that is automatically advanced by a direct current motor according to the arc voltage : de en
  • GB557312A - Improvements in axial type compressors : en
  • DE741464C - Process for the preparation of o-oxyazo dyes : de en
  • DE741997C - Device for pressing out laundry : de en
  • US2334539A - Decoy airplane : en
  • USD136653S - Combined fumes removal hood and lighting fixture : en
  • FR887483A - Closure for artillery tube : en fr
  • GB557308A - A new or improved printing machine : en
  • US2334613A - Fishhook : en
  • AU593742A - Improvements in and relating to static voltage regulators : en
  • CH229705A - Insulation material for electrical machines and apparatus. : de en
  • CA416488A - Well drilling fluid : en fr
  • CH229672A - Sensor control for processing machines. : de en
  • CH229782A - Device for electro-inductive heating of workpieces. : de en
  • US2334568A - Apparatus for starting and controlling electrical discharge devices : en
  • FR887700A - Montage for creating a frequency modulated oscillation : en fr
  • US2334490A - Derivatives of dihydro-pyridone -and : en
  • US2334381A - Method of making tear strip wrappers : en
  • US2334634A - Fiberboard carton : en
  • US2334195A - Process for the production of polymerization products : en
  • US2334666A - Control system of boiling and canning rice : en
  • CA416417A - Electrical apparatus : en fr
  • US2334226A - Hair curler : en
  • US2334488A - Manufacture of aromatic hydroxy compounds : en
  • US2334356A - Vacuum gauge : en
  • FR887513A - Method and device for providing a coating of welding rods and wires : en fr
  • FR887603A - Rail current circuit breaker : en fr
  • FR887619A - Balanced insecticidal and fungicidal oils : en fr
  • US2334502A - Sound-absorbing structure : en
  • US2334587A - Starting and ballasting apparatus for electric discharge devices : en
  • US2334623A - Eatch bolt and striker device : en
  • DE741734C - Exchangeable metallic tray for the heating coil in electrically heated ovens : de en
  • AU757242A - Improvements in automatic phonographs : en
  • US2334493A - Combination couch and bed structure : en
  • DE741745C - Use of an aluminum alloy in dental technology : de en
  • DE741818C - Process for manufacturing outsoles : de en
  • AU117719B2 - Improvements in or relating to cobalt alloys and method of production : en
  • FR887477A - Device for cutting pieces of the same length from a rolled-up sheet for examination : en fr
  • CA416400A - Petroleum drilling fluid : en fr
  • CA416440A - Electro-plating apparatus : en fr
  • CA416457A - Spark plug insulator : en fr
  • CA416443A - Sheet trimming and handling apparatus : en fr
  • US2334266A - Diamond abrasive article : en
  • US2334620A - Method for recovering by-products from pulp waste liquor residues : en
  • CH229639A - Device for displaying two quantities converted into electrical currents. : de en
  • DE741652C - Binder for core sand : de en
  • DK61574C - Apparatus for the production of mercury amalgam. : da en
  • DE742016C - Basket-like shredding device, especially for steamed, sour potatoes : de en
  • USD136668S - Tool for removing slate and asbestos shingles : en
  • USD136669S - Instrument for manipulations of the spinal column : en
  • USD136518S - Design fob a fluorescent light fixture : en
  • US2334651A - Apparatus for washing sheet glass : en
  • FR887597A - Electrical resistance for high temperatures : en fr
  • DE742015C - Method and device for the determination of oxygen in gases containing hydrogen : de en
  • CH229628A - Automatic mass-locked firearm. : de en
  • GB557323A - Improvements in and relating to adhesive fabrics : en
  • GB557427A - Improvements relating to machinery driving belts : en
  • GB557425A - Improvements in ore concentration : en
  • FR887654A - Method of establishing an underlayment for coatings of bitumen, pitch or the like : en fr
  • GB557337A - Improvements in or relating to clutch mechanism : en
  • US2334245A - Cutting tool : en
  • DK61569C - Method for manufacturing a tubular cathode body of metal and an indirectly heated cathode for electric discharge tubes with such a body. : da en
  • CH229780A - Method of gluing. : de en
  • DE742031C - Pantographs for electric railways : de en
  • FR887537A - Process for improving hydrated cellulose yarns by treatment with formaldehyde in solution : en fr
  • FR887695A - Wheelhouse dynamometer : en fr
  • US2334240A - Clamp tool : en
  • US2334419A - Switch : en
  • GB557295A - Improvements in or relating to refrigerator cabinets : en
  • US2334555A - Catalytic apparatus : en
  • CA416462A - Luminaire for blackout lighting : en fr
  • DE711669C - Modification of the device according to patent 673332 for the simultaneous listening and visual display of target flight receivers : de en
  • US2334456A - Method of producing fan hubs : en
  • DE741805C - Machine for riveting and spot welding in hard-to-reach places : de en
  • GB557326A - Improvements in or relating to sewing machines : en
  • DE741740C - Method and device for bringing about a perfect bond when applying metal layers on metal workpieces : de en
  • US2334404A - Apparatus for solving problems : en
  • USD136665S - Combined garment hanger and door pull or similar article : en
  • DE741789C - Adjustable iron variometer coupled with a display device : de en
  • DE741945C - Stranding machine for wire ropes and electrical cables : de en
  • FR887500A - Process and installation for gas conditioning : en fr
  • FR887566A - Apparatus for the production of superheated steam : en fr
  • CA416478A - Plastic inlaying machine : en fr
  • CH229781A - Device for electro-inductive heating of workpieces. : de en
  • FR887490A - Wax : en fr
  • US2334487A - Card holder : en
  • US2334380A - Clip board : en
  • US2334182A - Time fuse : en
  • FR887487A - Process for improving woolens : en fr
  • DE741559C - Electric adding machine : de en
  • DE742020C - Automatic multiple pipe switch for compressed gas cylinder batteries : de en
  • US2334348A - Sunburn preventive : en
  • CH229655A - Electrode feeding device for fitted electrode rods. : de en
  • DE741738C - Device for wet treatment of artificial silk cake : de en
  • DE742001C - Process for the reduction of iron ores u. Like. By carbon oxide-containing gases in the circuit : de en
  • DE741739C - Spinneret for the production of curled artificial threads : de en
  • NL99633B - : en
  • US2334515A - Gear : en
  • DE741751C - Stuffing boxless pressure medium transfer from a fixed to a rotating part : de en
  • DE741635C - Halyard force switch : de en
  • DE741657C - Control valve, especially for central heating : de en
  • US2334684A - Intermittent drive mechanism : en
  • US2334247A - Detected signal direction finder : en
  • DK61557C - Method for Recovering a 7-Dehydrocholesterin Containing Sterin Mixture of Mussels. : da en
  • US2334313A - Electric switch : en
  • US2334342A - Rotary cutter : en
  • DE741941C - Process for fusion welding metal parts : de en
  • US2334209A - Multiple power operated mechanism : en
  • US2334251A - Book ends : en
  • NL99447B - Method for improving the taste of foods containing proteins and protein splitting products : en nl
  • US2334464A - Typewriting machine : en
  • US2334644A - Rotary loop-taker mechanism for sewing machines : en
  • US2334440A - Display device : en
  • US2334262A - Subsurface prospecting : en
  • DE741829C - Objects resistant to hydrochloric acid, sulfuric acid or chlorine derivatives : de en
  • GB557373A - New disazo dyestuff : en
  • US2334524A - Purifying hydroxy aliphatic acids : en
  • FR887530A - Process for manufacturing high molecular weight polymeric amides and amide esters : en fr
  • CH229738A - Electric flashlight. : de en
  • US2334169A - Disk brake : en
  • DE741920C - Electric wall lamp that can be used as a table lamp : de en
  • NL104053B - : en
  • GB557328A - Improvements in and connected with supports for electric cable : en
  • US2334420A - Means for processing yarn : en
  • GB557292A - Improvement in and relating to a lifting truck : en
  • CA416511A - Electron multiplier : en fr
  • CH229680A - Clutch fluid transmission. : de en
  • CH229684A - Submersible pump with electrically driven impeller. : de en
  • DE741716C - Free-hand pneumatic drill for coal and other minerals : de en
  • DE741923C - Base for button tubes : de en
  • US2334299A - Sewing machine : en
  • US2334362A - Method of conditioning tobacco : en
  • FR887516A - Ready-to-install sealant : en fr
  • GB557299A - Improvements in and relating to automatically adjustable cam-operated ignition circuit breaker : en
  • GB557371A - Improvements in or relating to the manufacture of wall-boards slabs or the like : en
  • US2334545A - Condensation product of a urea, an aliphatic aldehyde, and a mono salt of a polyamine : en
  • DE741826C - Furnace for the conversion of carbon monoxide with hydrogen to hydrocarbons : de en
  • DE741961C - Explosion-proof incandescent lamp socket with contact on a contact rail in a closed pressure-proof space on the back of the socket base : de en
  • CA416425A - Multispeed reversing coupling : en fr
  • DE741705C - Filling board with face veneers on both sides and a middle layer made of synthetic wood : de en
  • NL55528C - : en
  • US2334184A - Laminated expansion joint : en
  • DE741638C - Process for the production of preformed coils consisting of thin wires, in particular for armature electrical machines : de en
  • DE741714C - Device for reducing the visibility of ships : de en
  • CH229620A - Device for taking photographic images. : de en
  • AU117706B2 - Improvements in or relating to methods off treating p Phenylene diamines andthe improved products produced thereby : en
  • US2334336A - Loading beam : en
  • US2334447A - Thermostatic control system : en
  • USD136533S - Design for a coat : en
  • CA416504A - Electric switch : en fr
  • DE741781C - Aniline ink printing unit in which the mutually adjustable inking rollers can be lifted from the forme cylinder and from one another : de en
  • GB557393A - Improvements relating to filters : en
  • CH229625A - Roller skates. : en fr
  • CA416466A - Metal shaping process : en fr
  • DK61552C - Procedure for Stabilizing Beer. : da en
  • US2334682A - Handle for caskets, etc. : en
  • USD136652S - Design for a lawn chair : en
  • DE741749C - Machine controlled by punch cards : de en
  • DK61577C - Process for the Preparation of High Molecular Polymeric Amides and Esteramides. : da en
  • FR887540A - Cane maker : en fr
  • FR887585A - Locomotive gas compressor : en fr
  • GB557310A - Improvements in dry galvanic batteries : en
  • DE741865C - Control arrangement for spot and seam welding devices : de en
  • DE741646C - Process for coloring condensation or polymerization resins : de en
  • DE741651C - Process for the production of ointments and ointment bases : de en
  • DE741958C - Method for signaling and remote control in power networks by means of inductance change : de en
  • DE741839C - Arrangement for electron-optical imaging with adjustable magnification : de en
  • US2334614A - Device for positioning and forming apertures : en
  • CH229752A - System used to transmit electrical signals via a line. : de en
  • US2334672A - Thread-chain cutter for sewing machines : en
  • US2334471A - Photoelectric tube : en
  • US2334616A - Power feed compound slide rest for lathes : en
  • CA416412A - Welding apparatus control system : en fr
  • CA416415A - Welding method : en fr
  • CH229724A - Device for damping the high-voltage side star point oscillation when overvoltages occur in three-phase transformers and three-phase reactors. : de en
  • CH229653A - Process for casting light metals and light metal alloys with sand casting molds. : de en
  • FR887608A - Process for making fresh long-life bread : en fr
  • CH229708A - Device for switching off alternating current. : de en
  • DE741810C - Steering device for multi-axle log trailers : de en
  • FR887539A - safety pins : en fr
  • FR887611A - Light control device in printing or projection of color films : en fr
  • DE741642C - Rod light : de en
  • CH229775A - Process for the production of testosterone cyclohexyl enol ether. : de en
  • US2334264A - Gyro wheel : en
  • AU730542A - Improved means for separating coarse gravel from adhering fine particles : en
  • GB557413A - Improvements in or relating to filters : en
  • US2334227A - Needle bearing : en
  • US2334341A - Process for recovery of tar oils : en
  • DE741707C - Mixture compressing two-stroke internal combustion engine : de en
  • DE741641C - Brush holders for electrical machines : de en
  • FR887561A - Coupling device for electric starters of internal combustion engines : en fr
  • US2334385A - Measuring device : en
  • US2334519A - Filament transformer : en
  • CA416447A - Rake driving mechanism for sedimentation tanks : en fr
  • CH229626A - Device for mounting an emergency sled using a pair of skis. : en fr
  • US2334201A - Naphthalene derivatives and method of obtaining same : en
  • DE741628C - Electrically heated shaving brush : de en
  • DK61566C - Luminaire for long, tubular, electric Lighting fixtures. : da en
  • DE741636C - Process for the production of stator cores for electrical machines : de en
  • DK61584C - Automatic Firearm with Sliding Pipe. : da en
  • NL55507C - : en
  • FR887568A - Improvements to transmission devices : en fr
  • DE741896C - Starting device for heavy internal combustion rams, especially those working on the diesel principle : de en
  • DE742002C - Tube transmitter : de en
  • US2334422A - Pipe protractor : en
  • US2334650A - Apparatus for deep fat cooking : en
  • US2334375A - Multiple unit concrete pump drive : en
  • US2334583A - Process for converting heavy petroleum oil into vapors and coke : en
  • FR887638A - Bi-metal composed of layers with different coefficients of thermal expansion : en fr
  • DE742028C - Fastening of superheater pipe coils lying in one plane to support pipes through which a coolant flows : de en
  • USD136670S - Design for a compound tool : en
  • DE741913C - Power supply to the rotor of an underwater turbo generator : de en
  • US2334398A - Water heater : en
  • US2334510A - Record reproducing control circuit : en
  • NL55496C - PROCESS FOR THE PREPARATION OF NEW AZO COLORING AGENTS : en nl
  • US2334595A - Device for removing meats and the like from containers : en
  • US2334608A - Slicer : en
  • US2334281A - Pectin jelly composition : en
  • FR887499A - Molecular pump : en fr
  • NL55492C - Method for the preparation of cheese with the addition of bromate or iodate, and cheeses prepared according to that method : en nl
  • CH229675A - Screw locking. : de en
  • DE741723C - Method for balancing the magnetic coupling in communication lines : de en
  • DE741809C - Control device for compressors to ventilate overpressure chambers in high-altitude aircraft : de en
  • USD136523S - Design for a handbag : en
  • FR887560A - Process for manufacturing a fruit product, which keeps well and has a smooth consistency : en fr
  • CA416403A - Power system : en fr
  • USD136671S - Design for a house : en
  • FR887493A - Dihydropyran and its method of preparation : en fr
  • CA416383A - Gyroscopic indicator : en fr
  • CA416404A - Coffee maker : en fr
  • CH229697A - Self-regulating device for alternating current. : en fr
  • FR887510A - Lacquer resins and their preparation process : en fr
  • FR887650A - Wired broadcasting system for time signals and / or warning signals : en fr
  • US2334280A - Bowden wire casing : en
  • US2334476A - Unsaturated isocyanate : en
  • FR887576A - Process for producing aluminum-silicon alloys : en fr
  • DE741790C - Radio receiver that can be tuned to a number of stations determined in advance : de en
  • DE741907C - Device for displaying impermissible overloading of conductors through which alternating current flows : de en
  • DE742008C - Process for the manufacture of glass bodies with a diameter that changes in sections : de en
  • DK61583C - Automatic firearm. : da en
  • CH229661A - Tap wrench. : de en
  • US2334461A - Raking attachment for thresher cylinders : en
  • CH229648A - Waterproof watch box. : en fr
  • FR887642A - Mobile electrical conduit for the supply of current to devices that consume it and that can be transported : en fr
  • FR887666A - Device for controlling the symmetry of the partial voltages during the reproduction of sound recording in push-pull : en fr
  • FR887480A - Assembly for photocell densitometer : en fr
  • FR887620A - Packaging for shipments : en fr
  • US2334681A - Rotary operative closure fastener : en
  • FR887649A - Telephone coupling device for information service on one-sided band : en fr
  • DE741935C - Finger shaker for threshing machines : de en
  • GB557396A - Improved mechanism for changing reciprocating rectilinear into oscillating rotary motion, and means for applying such mechanism to eye-shields, goggles, or the like, for the moving of viewing glasses : en
  • US2334257A - Method of making blowpipe nozzles : en
  • FR887648A - Improved pigment properties : en fr
  • CH229572A - Spun concrete mold for the production of prestressed concrete bodies. : de en
  • DE741819C - Process for manufacturing outsoles : de en
  • GB557351A - Improvements relating to self-locking nuts and similar internally screw-threaded members : en
  • DE741871C - Kaelbertraenker : de en
  • DE741650C - Impact tool for knocking out bone pins : de en
  • DE741742C - Fiber dowel : de en
  • CA416509A - Colour effect production on textiles : en fr
  • GB557324A - Improvements in the production of cellulose from ligno-cellulosic material : en
  • GB557329A - Fabric articles of wearing apparel : en
  • GB557334A - Improvements in and relating to automatic synchronizing control systems : en
  • US2334540A - Golf putting practice green : en
  • US2334371A - Garment hanger : en
  • CA416433A - Vinyl resin plastic composition : en fr
  • CH229750A - Procedure for operating an intercom. : de en
  • CH229640A - AC measuring bridge. : de en
  • NL55459C - X-ray installation equipped with a high-vacuum switching tube with grid control : en nl
  • CA416422A - Hydrogen absorber : en fr
  • CA416475A - Brush manufacture : en fr
  • CH229797A - Wheel. : de en
  • DE741881C - Device for greasing tin cans : de en
  • US2334578A - Method of and apparatus for producing glass beads : en
  • USD136526S - Design for a handbag : en
  • FR887541A - Fuel supply system for internal combustion injection engines : en fr
  • CH229746A - Process for the preparation of a water-soluble derivative of 4,4'-diaminodiphenyl sulfone. : de en
  • DE741964C - Gas or steam-filled electric light discharge tube with gas supply : de en
  • US2334661A - Pipe bending machine : en
  • CA416370A - Moulding apparatus : en fr
  • CA416491A - Spring packing making method : en fr
  • CH224311A - Sweat and sunbathing facility. : de en
  • DE741643C - Dimming device for headlights and signals : de en
  • USD136658S - Design foe a cologne bottle : en
  • US2334166A - Combination valve and choke : en
  • US2334593A - Apparatus for measuring magnetic fields : en
  • DE741681C - Process for the production of hydrogen-rich gas mixtures by partial combustion of methane with oxygen : de en
  • FR887596A - Quartz crystal for bending vibrations : en fr
  • GB557429A - Improvements in the construction of retorts for the heat-treatment of materials, furnaces, kilns and the like : en
  • US2334520A - Press : en
  • US2334556A - Tree therapy : en
  • FR887460A - Fabric for gasifier filter and others : en fr
  • DE741843C - Composite mill : de en
  • DE741850C - Chain sizing and gluing machine : de en
  • DE741899C - Image transmitter tubes with a grid-shaped storage electrode acting as a control grid : de en
  • DE741695C - Circuit breaker : de en
  • GB557303A - Improvements in or relating to drain digging machines and mole draining machines : en
  • FR887647A - Spindle or grinding wheel shaft : en fr
  • FR887667A - High frequency installation line : en fr
  • DE741766C - Device for cutting endless synthetic thread strips : de en
  • CA416406A - Projector shutter : en fr
  • DE741892C - Type case made of juxtaposed individual cases of the same size : de en
  • AU747642A - Bimetals : en
  • US2334354A - Mercury cathode cell : en
  • US2334442A - Bicycle pedal signal light : en
  • GB557293A - Cable tension controller : en
  • US2334312A - Drilling machine : en
  • US2334533A - Device for brewing and dispensing beverages : en
  • US2334624A - Apparatus for use in the fabrication of multiply glass sheet glazing units : en
  • US2334384A - Switching conveyer means : en
  • US2334204A - Spark plug : en
  • DE741949C - Shell iron connection designed as a joint for the pit lining : de en
  • USD136519S - Design fob a bake head : en
  • FR887668A - Disc brake : en fr
  • USD136667S - Design for a hook : en
  • US2334619A - Tubular structure and article : en
  • DE741875C - Rotation protection of the discs of disc brakes for running wheels made from pressed sheet metal parts : de en
  • AU117735B2 - Masking or screening devices for lamps : en
  • CH229778A - Process for the preparation of 2-methyl-4-ethoxymethyl-5-cyano-6-oxy-pyridine. : de en
  • GB557325A - Improvements in or relating to hydraulic transmission of motion : en
  • GB557416A - Improvements in or relating to waist-bands for trousers, skirts and other garments : en
  • DE741804C - Process for the production of reinforcing bars with increased adhesion : de en
  • GB557388A - Electric control systems employing selectively-operated electro-magnetic devices : en
  • US2334538A - Operating mechanism for discharge lamps : en
  • FR887506A - Low-cut shoe with an improved rigid sole : en fr
  • GB557320A - Improvements in fluid-actuated remote control systems : en
  • DK61568C - Glow cathode for gas- or vapor-filled discharge tubes for high currents. : da en
  • FR887662A - Improvements to igniters : en fr
  • GB557368A - Improvements in wheels for the transmission of power : en
  • DE741656C - Multi-way tap for controlling a hot water heating system that is heated by a boiler together with a separately operating system : de en
  • DE741798C - Device for measuring the mutual contact pressure of the rollers of machines for processing paints, chocolate, soap, etc. like : de en
  • DE741736C - Process for the production of coating agents suitable for wet oil technology : de en
  • US2334221A - Power transmission apparatus : en
  • US2334378A - Hydrocarbon treatment : en
  • DE741832C - Extinguishing chamber switch : de en
  • DE741866C - Process for the production of dyes : de en
  • DE741791C - Hydrogen-cooled electrical machine with a liquid seal : de en
  • GB557424A - Improvements in and relating to universal joints and couplings : en
  • FR887552A - Pump pen holder : en fr
  • GB557379A - Improvements in automatic pulsator for milking machines : en
  • FR887482A - Apparatus for mixing, moistening and crumbling dry, powdery and fine-grained materials : en fr
  • DE741662C - Fastening of machine parts on shafts by means of a coupling bush that spreads through a wedge effect : de en
  • DE742038C - Row multiplier : de en
  • CA416421A - Electrical apparatus : en fr
  • CH229731A - Resonance spring drive. : de en
  • DE741916C - Measuring device with a measuring instrument showing the mean value : de en
  • FR887524A - Method and device for obtaining metallizations according to a pattern, in particular on tapes, films or the like : en fr
  • FR887609A - Protection device for the tilting mechanism of the cast iron or slag pockets : en fr
  • GB557389A - Treatment of paper : en
  • FR887663A - Anodic pulse modulation of oxide cathode lamps : en fr
  • US2334470A - Anti-flex-cracking agent : en
  • US2334607A - Peptizing agent : en
  • DE741692C - Telephones, especially double head telephones, mounted on a headband : de en
  • DE741948C - Device for returning the frames to sugar-strip clipping machines with packing device and automatic strip feed : de en
  • US2334279A - Antenna construction : en
  • US2334282A - Hydraulic coupling : en
  • US2334601A - Bull block stringup mechanism : en
  • FR887623A - Process for obtaining high value carbon black : en fr
  • GB557348A - Method and apparatus for the continuous heat treatment of rosin : en