• DK47579C - Device for transparent liquid-filled objects, such as advertising figures, sign letters, signaling devices and the like. : da en
  • DE581252C - Electric light tubes for direct current operation with a glowing main electrode and an auxiliary electrode surrounding it : de en
  • US1919799A - Telephone pay station receptacle : en
  • US1919832A - Process of manufacture of alkali metal carbonates : en
  • US1919965A - Apparatus for washing cans and the like : en
  • DE581475C - Floatless spray carburetor : de en
  • GB396055A - Improvements in tooth paste : en
  • DE581408C - Guide device for reversible water turbines, which are flowed through periodically in the opposite direction : de en
  • DE581570C - Process for compacting and hardening the surface of rotating bodies made of chilled cast iron : de en
  • FR749824A - Process to rid the casings used to make catgut of germs : en fr
  • US1919383A - Footwear area calculator : en
  • US1920038A - Transmission control mechanism : en
  • CA334380A - Petroleum distillate extraction : en fr
  • US1920023A - Machine for making friction elements : en
  • DE581221C - Freezer plate for artificial ice rinks : de en
  • FR749596A - Further training in motor vehicles : en fr
  • AT134396B - Jig for molds for casting ceramic objects. : de en
  • DK47581C - Termion tube amplifiers. : da en
  • FR749520A - Improvements to trolleys such as, in particular, those intended for the transport of sick and wounded : en fr
  • FR749763A - Improvements to automotive brake testing devices : en fr
  • DE581354C - Frequency measuring device, in particular for determining the deviation of a frequency from a nominal value, in which two oscillating circuits act on a differential system : de en
  • DE581514C - Suspenders : de en
  • DE581349C - Heat release device : de en
  • DE581474C - Device for determining the refraction of the eye : de en
  • GB395885A - Improvements in or relating to anti-glare and fog penetrating devices for vehicle headlights : en
  • US1919329A - Purification of cellulose : en
  • FR749414A - Air navigation device, drift indicator and speed over the ground : en fr
  • FR749559A - Space heating system by heating panels formed by the walls of the premises : en fr
  • DE581232C - Device for the production of endless ribbons from gelatine, cellulose derivatives and similar substances : de en
  • DE581559C - Circuit arrangement for the transmission of impulses over connecting lines in telephone systems with dialer operation : de en
  • GB395754A - Improvements in or relating to loading or conveying systems for use in mines or the like : en
  • DE581561C - Vacuum switch : de en
  • GB395994A - A device for emitting fluids under pressure : en
  • GB396072A - Improvements in or relating to lubricators : en
  • FR749562A - Primary teaching materials : en fr
  • US1919293A - Corset : en
  • GB396011A - Manufacture of 3-oxyselenonaphthene and its derivatives : en
  • DE581441C - Impression work for imprinting eye catchers u. Like. For quick-drying paint, such as. B. aniline paint, on paper webs : de en
  • US1919282A - Hair waving apparatus : en
  • US1919705A - Weed or quack grass plow : en
  • US1919939A - Casting freely oxidizable metal : en
  • USD90364S - Design for a griddle iron : en
  • DE581548C - Locking device for open window sashes : de en
  • DE581557C - Process for compressing sulfur and arsenic from gases containing sulfur arsenic : de en
  • GB395741A - Improvements in the electrolytic manufacture of piperidine : en
  • FR749469A - Portable electric light fixture : en fr
  • DE581191C - Cinema trick template : de en
  • DE581262C - Device for the automatic determination of the luminous efficiency of electric lamps : de en
  • DE581243C - Accumulator locomotive, especially for mining operations : de en
  • DE549132C - Baking or Doerrofen with baking boxes moving up and down in adjacent shafts, forming a stack : de en
  • GB395964A - Improvements in or relating to gas-heated appliances : en
  • GB395997A - Improvements in and relating to closures for non-refillable bottles : en
  • DE581527C - Process for obtaining fibers from raw flax or other textile plants : de en
  • GB395738A - Improvements in electric luminous discharge tubes : en
  • DE581466C - Closing device for the individual dispensing of pills or the like. For cans or the like. : de en
  • DE581428C - Hollaender, in which the fabric is thrown by the roller against a collecting hood that is open at the bottom : de en
  • FR749566A - Friction device for braking mechanisms, clutch, or other applications : en fr
  • FR749607A - Improvements to change-tariff meters : en fr
  • FR749779A - Ice balancing system for railroad cars, street cars, etc. : en fr
  • GB395832A - Manufacture of monoazo-dyestuffs : en
  • US1919193A - Pedestal for tables and the like : en
  • US1919876A - Motor gear : en
  • US1920108A - Nut castellating machine : en
  • AT134286B - Process for the production of sponges. : de en
  • CA334327A - Belt conveyer carrier : en fr
  • DE530120C - Machine for centerless grinding, especially of tapered rolls : de en
  • DE581322C - Process for drying Duengesalzen or chlorinated potassium in the potash industry : de en
  • CA334308A - Relay : en fr
  • GB396059A - Improvements in or relating to refrigeration with solid carbon dioxide : en
  • FR749697A - Locking and releasing device applicable to cash registers, calculating machines, etc., and other applications : en fr
  • FR749455A - : fr
  • GB396431A - Improvements in the colouration of textile materials : en
  • FR749436A - Improvements made to transparent siliceous materials : en fr
  • FR749458A - Series motor for low power : en fr
  • GB395759A - Improvements in or relating to the manufacture of blasting explosives and the like : en
  • DE581259C - Process for the production of tempered precious metal alloys : de en
  • DE581483C - Advertising and notice column : de en
  • DE581407C - Device for sticking a band on the lower broad side and the adjoining narrow sides of boxes : de en
  • US1919325A - Lift body for motor vehicles : en
  • FR749568A - Manufacturing process for new cellulosic derivatives and resulting products : en fr
  • FR749605A - Improvements to gillbox and intersecting bars : en fr
  • FR749510A - Rescue device for airplanes : en fr
  • FR749632A - Lamp for non-blinding lighting : en fr
  • GB395901A - Improvements in devices for ensuring protection from the danger of fire from back-firing in aircraft, road vehicles or the like fitted with internal combustion engines : en
  • GB396000A - Improvements in and relating to surgical needles : en
  • DE484276C - Tensioning and cutting device on thread pulling machines : de en
  • US1919545A - Brake shoe grinder : en
  • US1919566A - Sewage clarification tank and cleaning machine therefor : en
  • DE581511C - Signaling device for the automatic regulation of the traffic at danger points : de en
  • FR749534A - Process for the production of hydroxy ethers of cellulose : en fr
  • FR749476A - Illuminated letters or signs : en fr
  • GB396082A - Improvements in and relating to cable anchoring devices : en
  • FR749622A - Improvements in hard alloys and their manufacturing processes : en fr
  • FR749750A - Method of locating sounds with a view to synchronizing the sound with the image of cinematographic films, directly or during dubbing, and other applications : en fr
  • AT134207B - Power converter. : de en
  • AT134290B - Device for guiding rubber threads or the like. : de en
  • FR749781A - Hub counter for vehicles : en fr
  • AT134398B - Process for the manufacture of bespoke footwear. : de en
  • AU4111864A - Apparatus for manually digging out sods of turf : en
  • FR749672A - Worm press : en fr
  • US1919273A - Renewable electric fuse and method of making it : en
  • AT134387B - Burglar protection. : de en
  • AT134274B - Process for the distillation of oil-containing minerals, in particular oil shale. : de en
  • DE581376C - Forage scales : de en
  • US1919400A - Apparatus for the evaporation of liquids : en
  • US1919573A - Azodyestuff : en
  • US1919757A - Process of treating laminated glass to prepare it for sealing : en
  • CA334408A - Oil burner : en fr
  • US1919855A - Carbon supply device for duplicating machines : en
  • US1920148A - Fusible electrode for electric welding : en
  • GB395871A - Improvements in high output ultra-filters : en
  • US1920116A - Padlock : en
  • AT134220B - Baffle for loudspeakers. : de en
  • US1919646A - Dry kiln : en
  • CA334259A - Smoke purifier and condenser : en fr
  • DE581227C - Anode for high vacuum discharge vessels, especially for X-ray tubes : de en
  • DK47572C - Oil burner. : da en
  • CA334387A - Signalling system : en fr
  • DE581367C - Sectional boiler with a device to bring about different temperatures in the boiler parts : de en
  • DE581370C - Magnetic coupling, in particular for measuring purposes : de en
  • US1919257A - Fluid dispensing apparatus : en
  • US1919954A - Printing machine : en
  • US1919986A - Electrical switch house : en
  • DE581336C - Compressed air braking device : de en
  • AT134386B - Locking and switching device for self-collecting speech machines. : de en
  • CA334262A - Window fastener : en fr
  • US1920114A - Device for reducing piston slap in internal combustion engines : en
  • GB395835A - An improved device for anchoring attachments to concrete and like surfaces : en
  • FR749434A - Process for the preparation of nickel carbonyl : en fr
  • US1919358A - Circular saw and method of making the same : en
  • US1919685A - Door construction : en
  • GB396108A - Improvements in or relating to sighting apparatus for guns for use on aircraft : en
  • AT134267B - Process for the production of quick-drying varnishes. : de en
  • DE581481C - Process for the production of hollow drill steel : de en
  • US1920015A - Synchronizing system : en
  • USRE18902E - method of producing hydrogen sulphide r : en
  • CA334287A - Liquid filter : en fr
  • AU851232A - Improvements inthe grain feed device for seed drills : en
  • US1919892A - Means for control of the charge of a storage rattery : en
  • FR749794A - : fr
  • FR749495A - Process for the recovery of sulfur from the masses used for gas purification : en fr
  • US1919320A - Apparatus for treating hydrocarbons : en
  • US1919765A - Fruit holder : en
  • US1919492A - Wheel hub cap and lock therefor : en
  • US1919821A - Apparatus for heat treating articles : en
  • US1919540A - Machine casing element and method of making same : en
  • US1919584A - Method and apparatus for making packing rings : en
  • DE581213C - Process for soaking barley : de en
  • DE581389C - Device for mass mirroring of objects : de en
  • US1919509A - Multiple lay cable : en
  • US1919931A - Drill stem for flush joint drilling apparatus : en
  • AT134381B - Method and device for creating moving luminous images. : de en
  • DE581556C - Card file with horizontally staggered cards secured by spacers : de en
  • US1919839A - Pipe-bending machine : en
  • DE581374C - Measuring device for monitoring the gas or liquid content : de en
  • DE581269C - Fabric printer arrangement for sewing machines : de en
  • GB395771A - Improvements relating to fluid pressure braking apparatus : en
  • GB395984A - Improvements in or relating to photographic printing and enlarging : en
  • GB396003A - Improvements in or relating to writing pens : en
  • AT134283B - Insecticides. : de en
  • GB395876A - Improvements in and relating to automatic telephone systems : en
  • DE581493C - Process for the manufacture of pull cord packages : de en
  • FR749830A - Fans : en fr
  • CA334295A - Alloy manufacture : en fr
  • US1919301A - Age resisting vulcanized rubber and antioxidant agent : en
  • US1919465A - Hydraulic brake : en
  • AT134373B - Mirror systems for lighting purposes, in particular for photographic enlarging apparatus. : de en
  • CA334381A - Alkylated phenol production : en fr
  • US1919203A - Furnace : en
  • US1920036A - Swimming machine : en
  • US1919583A - Foot rail : en
  • FR749542A - Coffee filter : en fr
  • US1920127A - Stored pressure medium container : en
  • DE581431C - Heating plate for drying purposes, especially for drying fabric sheets : de en
  • FR749525A - Multipurpose tool : en fr
  • US1919229A - Rotary drier : en
  • US1919299A - Stocking supporter : en
  • FR749456A - Advanced tractor for agriculture : en fr
  • FR749795A - Device allowing the rescue of a damaged ship or a submarine : en fr
  • FR749788A - Process for manufacturing products or articles containing cellulose derivatives or other lacquer bases : en fr
  • GB395844A - Improved manufacture of phosphorus : en
  • GB395899A - Improvements in polyhydric alcohol-polybasic acid resins : en
  • AT134392B - Device for the size classification of granular material. : de en
  • GB395777A - Improvements relating to radio receiving apparatus : en
  • US1919926A - Developing apparatus : en
  • DE581461C - Glow amplifier tubes : de en
  • DE581503C - Device for comparing several AC quantities with one another, in particular for synchronizing two line systems : de en
  • AU826832A - Process and apparatus for evaporation of water : en
  • USD90355S - Design for a shoe : en
  • USD90357S - bradbury : en
  • AT134339B - Joint seal for storage flaps. : de en
  • US1919420A - Cutting tool : en
  • US1919901A - Expansion shield : en
  • US1919638A - Knife for thread-cutting temples : en
  • US1919208A - Switching mechanism for automotive vehicles : en
  • FR749589A - Utensil for cleaning fabrics : en fr
  • AT134229B - Process for rolling out strips, sheets, etc. Like. To the smallest thicknesses in continuously arranged roll stands with furnaces in between. : de en
  • AT134239B - Sofa convertible into a double bed. : de en
  • GB396413A - Improvements in lubricating boxes of axle bearings : en
  • US1919415A - Machine for affixing stamps, labels, and the like : en
  • DE581552C - Closing sleeve for strap ends : de en
  • GB396429A - Improvements in colouring textile materials : en
  • AT134242B - Process for the preparation of water-soluble complex antimony salts of polyoxymonocarboxylic acids. : de en
  • DK47577C - Method and Device for Extraction of a Carbon Monoxide - Free Bygas. : da en
  • FR749493A - Process for obtaining a wheat-based food product : en fr
  • US1919805A - Filtering means : en
  • US1920059A - Exhaust operated heater : en
  • AT134252B - Process for the production of a rust preventive and for the treatment of iron and steel with this rust preventive. : de en
  • GB396070A - Process and apparatus for the manufacture of multi-coloured candles : en
  • US1919679A - Adjustable flue connection : en
  • AT134266B - Process for the production of an easily wettable, neutral peat fertilizer. : de en
  • US1919328A - Refrigerator doorlock : en
  • FR749736A - Remote transmission : en fr
  • US1920046A - Curtain threader : en
  • US1919697A - Impregnated product and process for making the same : en
  • US1919309A - Apparatus and method for radio transmission and reception : en
  • US1919382A - Detachable meter device : en
  • US1920027A - Figure : en
  • US1920096A - Circuit controlling mechanism : en
  • US1919944A - Stapie setting machine : en
  • CA334401A - Telephone exchange system : en fr
  • FR749665A - Manufacturing process of gaseous hydrocyanic acid : en fr
  • DE581289C - Adjustable vulcanizing mold : de en
  • US1919699A - Refining of copper : en
  • US1919677A - Protected metal article : en
  • US1920044A - Hinge construction : en
  • AT134295B - Device for regulating the gas flow in gas pipelines. : de en
  • US1919869A - Corrugating apparatus : en
  • US1919966A - Locking slider : en
  • CA334248A - Slip-sheeter : en fr
  • US1919210A - Door switch or the like : en
  • US1919351A - Wall-paper scraper : en
  • US1919399A - Typewriter attachment : en
  • US1919716A - Metal partition : en
  • US1920007A - Frame for refrigerator doors : en
  • FR749440A - Awning arm : en fr
  • GB396379A - Improvements in or relating to seals for rotatable elements, shafts or the like : en
  • US1919710A - Metal shears : en
  • US1920069A - Waxing device : en
  • FR749739A - Improvement in the manufacture of fishnets or hairnets with elastics : en fr
  • US1919654A - Coupling : en
  • US1920122A - Heat interchanging apparatus and process : en
  • US1920039A - Testing machine : en
  • DE581414C - Magnetic arc blowing for electrical switches : de en
  • FR749735A - Emergency direction for airplanes : en fr
  • GB396382A - Improvements in, or relating to, gate-end loading devices : en
  • DE581399C - Liquid shock absorbers : de en
  • DE581477C - Starter device : de en
  • FR749515A - Marqueite totalizer : en fr
  • FR749682A - Improvements to spark plugs for internal combustion engines : en fr
  • GB395975A - Improved method for the manufacture of plaited artificial silk incandescent mantles : en
  • AT134320B - Cigarette holder. : de en
  • US1919549A - Tile cleaniera ahpabattis : en
  • US1919609A - Worktable : en
  • US1920141A - Split bushing for tool posts and similar applications of use : en
  • US1920154A - Edgewise winding machine for stator cores : en
  • AU647832A - Improvements relating to vehicles capable of running at highspeed on railway tracks : en
  • US1919701A - Metal lock for gas meters : en
  • US1920159A - Radiogoniometer : en
  • DE581460C - Electrolytic capacitor for direct current : de en
  • GB395926A - Improvements in wood working machines : en
  • US1919456A - Roll stand for printing presses : en
  • US1919693A - Hot box control : en
  • US1919736A - Draft rigging : en
  • CA334320A - Refractory article manufacture : en fr
  • US1919279A - Railway traffic controlling apparatus : en
  • US1919633A - Apparatus for commutating or periodically interrupting electric currents : en
  • AT134344B - Automatic trailer coupling, in particular for motor vehicles. : de en
  • AT134376B - Printing device for accounting machines. : de en
  • FR749481A - Improvements to leaf springs : en fr
  • CA334318A - Synchronizing system : en fr
  • FR749468A - Shoe sole trim : en fr
  • GB395930A - Improvements in or relating to parlour game apparatus : en
  • US1919294A - Accordion illuminating means : en
  • US1919779A - Toilet flushing apparatus : en
  • US1919427A - Box or crate : en
  • DE581446C - Process for the production of asbestos insulation on wires : de en
  • DE581203C - Press for gluing soles to footwear with a press pad : de en
  • DE581282C - Control valve for hydraulic braking devices for motor vehicles : de en
  • US1919359A - Window construction : en
  • US1919742A - Soluble bismuthyl mannonate and the process of making it : en
  • CA334279A - Storage battery : en fr
  • DE576985C - Device for holding and pulling back the derailed pantograph of electric rail vehicles : de en
  • US1919925A - Wheel : en
  • AT134250B - Spinning process and device for dry spinning of rayon threads. : de en
  • FR749652A - Improvements to articulators used in dentistry : en fr
  • GB395824A - Improvements in machinery for opening or cleaning and simultaneously disinfecting waste paper, esparto grass, rags, flocks and like materials : en
  • FR749564A - Device for drying centrifuge bowls : en fr
  • GB396006A - Rotary brushes : en
  • DE581492C - Nitscherstreet : de en
  • DE581237C - Device for the evaporation of liquids, drying of materials or for the crystallization of salts from their solutions : de en
  • DE581468C - Collapsible table : de en
  • FR749429A - Internal motor tool, including hand-held electric grinding machine : en fr
  • DE581447C - Rotary switch with conical switch drum : de en
  • DE581540C - Process for the production or machining of rolling pistons provided with several, approximately radial projections, performing circular (paracyclic) movements : de en
  • US1919817A - Automatic cut-out device for the starting motors of internal combustion engines : en
  • FR749616A - Absorption refrigeration machine, with auxiliary gas for pressure compensation : en fr
  • GB395810A - Improvements in and in the manufacture of photographic and such like albums for the reception of photographs, prints, specimens and such like : en
  • DE581463C - Process for the production of mass cores from iron-nickel powder, which is subjected to a heat treatment to achieve a high level of magnetic stability before pressing or insulation : de en
  • GB395880A - Improvements in and relating to the manufacture of moulding substances : en
  • DE581264C - Equal pressure internal combustion engine with reciprocating pistons running in opposite directions : de en
  • DE581432C - Rotary filter under pressure and continuously working : de en
  • FR749509A - Electric transmission, intended to connect a punching machine for accounting records to an accounting machine or similar : en fr
  • GB395921A - Improvements in and relating to machines for making cigar bunches from scrap tobacco : en
  • GB395966A - Lamp for electrical illumination : en
  • GB396062A - Improvements relating to apparatus for sheathing cores : en
  • GB395864A - The production of multi-coloured artificial cellulosic materials in the form of sheets, bands or films : en
  • FR749591A - Manufacturing process for construction parts for air vehicles, in particular for airplanes : en fr
  • FR749612A - Articulated toy : en fr
  • US1919486A - Compact : en
  • FR749775A - Device with automatic activation under the action of heat : en fr
  • GB396046A - Improvements in or relating to electrical signal transmission systems : en
  • US1919755A - Internal combustion engine : en
  • GB395790A - Improvements in and relating to electric terminals : en
  • GB395946A - Improvements in or relating to the mounting of cylinders in internal combustion engines : en
  • AT134368B - Firing cabinet for oil firing. : de en
  • US1919934A - Conveyer system : en
  • US1919976A - Electric power converting apparatus : en
  • USD90361S - Design fob : en
  • AT134347B - Device for changing the effective crank length in the case of one-sided loaded crank mechanisms, in particular of bicycles. : de en
  • FR749765A - Improvement brought to frequency changers involving the properties of electric vapor or ionized gas valves : en fr
  • GB395891A - Improvements in moulding presses : en
  • GB396030A - Improved packing for preserving and presenting sheets of regenerated cellulose : en
  • DE581436C - Process for the preparation of 2- (3'-oxynaphthyl-2 ') - 4-oxy-6,7-benzopseudoaziminobenzenes : de en
  • US1919696A - Drain valve : en
  • US1919884A - Brooder : en
  • DE581302C - Process and device for the production of solid carbonic acid : de en
  • FR749423A - Gas burner : en fr
  • US1919824A - Separable floral rack : en
  • DE581501C - Interlock circuit for several three-phase motors to be started one after the other : de en
  • US1919338A - Doorcheck : en
  • US1919831A - Stabilizing device for aircraft : en
  • AT134346B - Rear wheel for sports bikes. : de en
  • AT134226B - Outflow electrode for electrostatic precipitators made up of hanging chains and wire. : de en
  • US1919624A - Chrome scale softening process : en
  • US1919547A - Pneumatic swab plunger : en
  • US1919845A - Well drilling apparatus : en
  • GB395838A - Improvements in gas fires : en
  • GB395878A - Coin freed apparatus for playing games of skill or chance : en
  • US1919636A - System of mining oil shales : en
  • FR749791A - Method and apparatus for carrying out chemical reactions : en fr
  • AT134393B - Velor pump brush machine. : de en
  • DE581545C - Method of preventing the rubber tires of motor vehicles from sliding : de en
  • CA334282A - Rail brace : en fr
  • CA334361A - Printing press inking mechanism : en fr
  • GB395755A - Improvements in or relating to multiplex modulated carrier wave telegraph systems : en
  • US1919551A - Mechanic's square : en
  • DE581395C - Baling press, especially for pressing loose material : de en
  • GB395913A - Improvements in removable metal crowns or bridges and methods for producing and affixing them : en
  • IE12557L - Gasometers : en
  • US1919550A - Brake shoe : en
  • US1920140A - Process for hydrogenation of hydrocarbon oils : en
  • DE551330C - Pants to be worn under the shirt : de en
  • DE581377C - Clamping device for the sound pen, especially on electric pickups : de en
  • FR749828A - Eclipse mobile display case device : en fr
  • GB395848A - Improvements in or relating to the drying and moistening of tobacco : en
  • DE581353C - Process for the insulation of metal parts of electrical machines and apparatus from injected or sprayed metal : de en
  • AT134204B - Device for the protection of transformers, in particular for network connection devices or devices connected to them. : de en
  • AT134234B - Chair. : de en
  • AT134329B - Double cuff button. : de en
  • CA334275A - Tree sawing device : en fr
  • FR749796A - Improvements to automatic lighters : en fr
  • GB395867A - Improvements relating to lubricating compositions : en
  • CA334363A - Composite bag : en fr
  • GB395903A - Improvements relating to the moulding of granular material : en
  • CA334309A - Welding electrode : en fr
  • CA334319A - Fabric making process : en fr
  • DE554959C - Device for moving liquid metal, in particular for compressing gases and vapors in refrigeration machines : de en
  • DE581392C - Lens shutter : de en
  • FR749586A - Brake for hand carts : en fr
  • DE581394C - Process for the production of diazotypes : de en
  • FR749841A - Road map for motorists : en fr
  • CA334278A - Door knob spindle grip : en fr
  • DE581298C - Collapsible box : de en
  • GB395829A - Improvements in and relating to valve grinding tools : en
  • GB395898A - A sweeping brush holder and shaft holder : en
  • GB396056A - Improvements in or relating to electrical cut-outs : en
  • US1919535A - Dental roll dispenser : en
  • US1919979A - Electric switch : en
  • AT134218B - Arrangement for the synchronous operation of an image splitting and composing device. : de en
  • CA334360A - Zinc oxide production : en fr
  • DE581555C - Trash cleaning machine : de en
  • DE581593C - Tilting aerometer : de en
  • US1919371A - Window structure : en
  • USD90377S - William h : en
  • USRE18904E - P asking device for automobiles : en
  • US1919258A - Kiln : en
  • FR749590A - Light bollards to regulate traffic : en fr
  • DE581242C - Transfer table : de en
  • DE581517C - Card register with cabinet and slide-in drawer designed to hold cards : de en
  • FR749638A - Wax brush : en fr
  • US1919223A - Machine gun mount and locking device therefor : en
  • US1919526A - Untwisted direct process yarn with even shrinkage : en
  • AT134315B - Snow basket for ski poles. : de en
  • US1919866A - Fruit jar opener : en
  • US1919987A - Vacuum circuit interrupting apparatus : en
  • CA334283A - Television reception arrangement : en fr
  • CA334399A - Telephone exchange system : en fr
  • AT134326B - Cigarette or cigar holder. : de en
  • US1919574A - Closure means for tins : en
  • US1919739A - Striker plate : en
  • US1920117A - Pulverized fuel burner : en
  • US1919423A - Fluid pressure brake : en
  • US1919662A - Locking slider : en
  • CA334405A - Coated fabric : en fr
  • US1919582A - Dispensing device : en
  • US1919476A - Engine : en
  • US1919569A - Paper container : en
  • CA334272A - Game : en fr
  • US1919319A - Pipe coupler : en
  • US1919410A - Sewing machine : en
  • US1919387A - Cab : en
  • US1920042A - Hydraulic drive : en
  • US1920075A - Cartridge for guns and ordnances : en
  • US1920083A - Shoe bottom treating device : en
  • US1919562A - Hat storage box : en
  • US1919659A - Method of lasting shoes : en
  • DE581404C - Machine for adjusting a sole attached to the shoe for the attachment of heels : de en
  • GB395860A - Improved rotary means for boring earth : en
  • AT134308B - Marking device for games. : de en
  • CA334337A - Electric motor : en fr
  • US1919522A - Electric motor : en
  • CA334341A - Window frame : en fr
  • DE581346C - Emergency lighting system : de en
  • GB395990A - Improvements in the process of producing solid preparations of lactic acid : en
  • CA334307A - Street lighting relay : en fr
  • US1919778A - Gas purification : en
  • US1919919A - walter : en
  • GB395788A - Improvements in and relating to pulverising and grinding machines : en
  • US1919536A - Engine control means : en
  • US1919651A - Clutch : en
  • AT134364B - Electric light sign. : de en
  • AT134333B - Facility for question and answer games. : de en
  • US1919270A - Spool : en
  • US1919981A - Power installation : en
  • US1919244A - Rotary spraying device : en
  • US1919737A - Safety razor : en
  • US1919798A - Apparatus for coloring and decorating paper : en
  • AT134335B - Suspension for motor vehicles. : de en
  • AU829932A - Improved rabbit exterminator : en
  • US1920145A - Wiper arm and mounting therefor : en
  • US1920161A - Lubricant : en
  • AT134383B - Zipper. : de en
  • US1919437A - Shaft coupling : en
  • AT134297B - Process for the extraction of hydrocarbons from gases by means of solid adsorbents. : de en
  • AT134374B - Device for operational monitoring of a factory production or distribution process. : de en
  • DE581266C - Resilient piston ring for power machines with slot control : de en
  • US1919225A - Pressure control for muller rollers : en
  • CA334243A - Razor blade and sharpener : en fr
  • AT134360B - Fruit press. : de en
  • USD90383S - Eugene schwabz : en
  • US1919516A - Hedge trimmer or clipper : en
  • US1919675A - Invertase preparation and method of making the same : en
  • US1919746A - Folding chair : en
  • US1919953A - Binding post : en
  • US1920147A - Horn : en
  • AT134303B - Method and apparatus for producing shaped metal blanks. : de en
  • DE579586C - Method for the operation of stunning devices using nitrogen oxide : de en
  • AT134293B - Process for protecting wool, fur, hair, feathers and the like Like. Against moth damage. : de en
  • USD90385S - Jack schweizer : en
  • DE581563C - Mobile heating system operated with liquid fuel : de en
  • DE581489C - Automatic compensation between drive force and load, especially of compressed air-driven grinding and drilling machines : de en
  • FR749657A - Cellulose esterification process : en fr
  • US1919205A - Bolt and nut clamping device : en
  • DE581271C - Dust mill for cocoa cake : de en
  • FR749615A - Absorption machine with auxiliary gas used to compensate the pressure and circulated through the vaporizer and the absorber by means of an oscillating plate : en fr
  • CA334257A - Machine tool : en fr
  • US1919970A - Impeller : en
  • AU289050B2 - Apparatus for manually digging out sods of turf : en
  • DE581579C - Device for cleaning steel, cast iron and other castable metals : de en
  • US1919728A - Wing nut : en
  • US1919989A - Motor control system : en
  • US1919790A - Feed mechanism for grinding machines : en
  • CA334293A - Camera focussing device : en fr
  • FR749508A - Luminescent tube system : en fr
  • AT134345B - Pressure medium braking device, in particular for motor vehicle trains. : de en
  • US1919578A - Apparatus for the manufacture of receptacle closures : en
  • US1919844A - Method of drilling wells : en
  • US1919369A - Method of preparing fat-soluble-vitamin-concentrates : en
  • US1919414A - Fruit packer : en
  • US1919417A - Max dohrn : en
  • US1919879A - Packing and display container : en
  • AT134203B - Device for the production of shaped stones from lightweight concrete u. like : de en
  • CA334389A - Signalling system : en fr
  • AT134238B - Process for the production of fan-shaped locking washers. : de en
  • GB395927A - Improvements in or relating to shutters for controlling the flow of air and other fluids : en
  • CA334329A - Brake shoe mould : en fr
  • DE581406C - Dice game in which dice are made to jump by operating levers under a glass bell : de en
  • AT134272B - Process for changing the solubility of fibrous cellulose acetates. : de en
  • US1919314A - Telephone instrument circuit : en
  • US1919563A - Process of preparing 1-amino-10-anthrones and the products obtainable thereby : en
  • USD90380S - Island : en
  • US1919629A - Stair tread : en
  • US1919221A - Multiple grip handle : en
  • CA334251A - Thermal relay : en fr
  • AT134254B - Zinc alloy, especially for injection molding. : de en
  • AT134262B - Sodium hydrosulfite preparations. : de en
  • CA334303A - Door lock : en fr
  • AT134228B - Method and device for the production of iron straps u. like : de en
  • US1919291A - Cloth guiding device : en
  • US1920050A - Evaporator : en
  • US1920162A - Radio aerial attachment : en
  • AT134213B - Electrical contact pin. : de en
  • USD90391S - stedman : en
  • DE581442C - Process for the preparation of a fertilizer containing ammonium magnesium phosphate : de en
  • FR749748A - Method and devices for regulating the voltage at the primary of transformers : en fr
  • CA334239A - Tennis racket frame : en fr
  • CA334397A - Electron discharge device : en fr
  • US1920082A - Container for refrigerant : en
  • AT134338B - Self-regulating brake. : de en
  • DE581494C - Device for transferring the conveyor wagons from one track to an adjacent one : de en
  • FR749773A - Reversing ladle-ingot system, for the instant ingoting of metals, alloys and other molten products : en fr
  • AU824632A - An improved shuttle-tennis game : en
  • AT134317B - Method and device for cutting pasta. : de en
  • CA334296A - Railway car truck : en fr
  • CA334354A - Ammonium sulphate and sulphur recovery : en fr
  • DE581236C - Method and device for displaying and automatically regulating the change in the state of liquids due to the supply of heat : de en
  • AT134260B - Process for improving the mechanical properties of materials. : de en
  • AT134400B - Indicator of resuscitation seemingly dead. : de en
  • CA334353A - Ammonium sulphate production : en fr
  • US1919285A - Combustion chamber : en
  • US1920084A - Changeable exhibitor : en
  • US1919455A - Handle construction : en
  • US1920018A - Apparatus for the manufacture of wire pull bottle caps : en
  • US1919195A - Pumping mechanism : en
  • US1919435A - Train pipe coupling : en
  • DE581359C - Grate firing operated with under wind for baking ovens and similar ovens : de en
  • FR749408A - Improvements to electric cables : en fr
  • AT134240B - Device for lifting the driven swivel castor from its running surface on flame cutting machines. : de en
  • AT134248B - Method and device for increasing the temperature of the slag and the metal bath in high-frequency and other induction furnaces. : de en
  • AT134280B - Process and device for degassing lignite in vertical, externally heated retorts or chambers. : de en
  • US1919403A - Sorting apparatus : en
  • US1919494A - Basket-ball backstop : en
  • US1919732A - r-nh-hg-x : en
  • AT134365B - Bath heater with two separate hot water rooms. : de en
  • CA334314A - Pipe branch fitting : en fr
  • US1919627A - Exercising apparatus : en
  • US1919623A - Production of useful products from cellulosic materials : en
  • US1920115A - A cobpo : en
  • CA334241A - Acid phosphate : en fr
  • DE581372C - Two-chamber dry gas meter : de en
  • FR749784A - Improvements to telephone systems : en fr
  • FR749686A - Thermal, acoustic and sound insulation material : en fr
  • FR749802A - Deviation indicator or deviometer : en fr
  • US1919479A - Process of making alloys : en
  • DE581329C - Process for the preparation of crotonylaminoarylarsic acids : de en
  • FR749602A - Signs and signals transmitter-printer : en fr
  • FR749645A - Dust vacuum cleaner, comprising a brushing or beating device driven by the vacuum cleaner motor : en fr
  • USRE18901E - Water-tube steam boileb : en
  • GB395939A - Indicator board for use in playing and practising card games : en
  • US1919204A - Heater : en
  • CA334393A - Pressure transmitting fluid composition : en fr
  • GB395902A - Improvements relating to vehicle lamps : en
  • GB395905A - Improvements in and relating to electrically operated amusement apparatus : en
  • DE581327C - Device for the automatic removal of the trimmed stacks of paper or books on cutting machines with a table that can be rotated around its horizontal axis : de en
  • FR749793A - Further training in television amplifiers : en fr
  • FR749595A - Cattle feed : en fr
  • FR749451A - Improvements to aluminum-magnesium alloys and process for their production : en fr
  • FR749786A - Molded funeral emblem model and method of making inscriptions also molded : en fr
  • DE581576C - Brush with a metal frame : de en
  • FR749526A - : fr
  • AT134382B - Motor-driven sewing machine. : de en
  • US1919485A - Screening apparatus : en
  • GB395762A - Improvements in stapling mechanism for use in printing machines : en
  • AU885832A - Improvements relating to electric current transforming and rectifying devices andthe utilisation thereof : en
  • CA334332A - Frost shield : en fr
  • GB395843A - Improvements in and relating to electric high tension switches : en
  • US1919586A - Propeller : en
  • US1919982A - Compass : en
  • US1920040A - Well head controller : en
  • USD90375S - A cobpobation : en
  • DE581305C - Sheet feeder for address printing machines : de en
  • FR749817A - Delivery mechanism for nut tapping machine : en fr
  • CA334317A - Electrical generator : en fr
  • CA334324A - Centrifugal pump : en fr
  • CA334333A - Hopper car : en fr
  • CA334392A - Ingot and mould : en fr
  • US1919362A - Pipe holder : en
  • US1919482A - Photographic screen : en
  • DE581303C - Process for the production of shaped or coarse adsorptive masses : de en
  • GB396077A - The manufacture of aminohalogen-anthraquinone sulphonic acids : en
  • US1919601A - Fuel injection device for internal combustion engines : en
  • USD90386S - Design for : en
  • FR749410A - Tipping device for dumpers : en fr
  • GB395785A - Improvements in or relating to boots, shoes and other footwear and to the method of making same : en
  • FR749582A - : fr
  • FR749661A - Single-conductor current transformer : en fr
  • FR749680A - Method and apparatus for taking x-rays : en fr
  • GB395919A - Method and apparatus for making the cutting edges of thin razor blades : en
  • GB396078A - Process for the manufacture of azo dyestuffs : en
  • FR749401A - Manufacturing process of mixed cellulose ethers : en fr
  • FR749460A - Device for closing and opening hermetically sealed boxes : en fr
  • GB395972A - Improvements in blade wheel pumps : en
  • DE571484C - Electrically controlled firearm to protect against robberies in bank and checkout rooms : de en
  • DE580974C - Screw press for oil fruits u. like : de en
  • FR749804A - Device for unwinding and winding a continuous strip : en fr
  • US1919259A - Apparatus for drawing tubing containing a stripe of contrasting glass : en
  • US1919445A - Safety apparatus : en
  • US1919450A - Pompon and method of making the same : en
  • US1919877A - Process for manufacturing furfural : en
  • FR749441A - Conical wrench for tightening or loosening round nuts : en fr
  • DE581484C - Clothes racks for advertising purposes : de en
  • FR749544A - Device establishing by purely photographic means the plan of a ground : en fr
  • GB395782A - Improvements in fire alarms : en
  • GB395909A - Improvements in and relating to washing machines : en
  • DE581253C - Connection between the graphite electrode and the metal parts for the power supply and cooling of the same in vacuum metal vapor arc apparatus : de en
  • GB396081A - Improvements in or relating to coating compositions : en
  • US1919863A - Rosenbebg : en
  • DE581304C - Flue gas preheater with box-shaped finned tube groups : de en
  • US1919581A - Coin freed mechanism : en
  • US1920011A - Lock for light bulbs : en
  • DE581546C - Protective insert for pneumatic vehicle tires : de en
  • FR749823A - water elevator usable in particular in fish farming : en fr
  • US1919657A - Shoe and process of lasting the same : en
  • GB396395A - Processes for the production and employment of organic persulpho compounds : en
  • IE12629L - Pasteurisation : en
  • US1919727A - Production of lacquers, artificial masses and solutions of their constituents : en
  • US1919797A - Tie rod end : en
  • AT134246B - Process for saccharifying cellulosic materials. : de en
  • FR749496A - Method and device for the uninterrupted separation of non-condensable gases during the distillation of liquids : en fr
  • US1919475A - Rear vision mirror : en
  • US1919390A - Expanding mill : en
  • AT134325B - Suction probes for cleaning devices of threshing machines or the like. : de en
  • CA334267A - Sash fastener : en fr
  • CA334235A - Smoke draft regulator : en fr
  • CA334245A - Steering gear : en fr
  • AT134261B - Process for removing arsenic and antimony from iron and manganese ores. : de en
  • AU1008432A - Recovery of sulphur : en
  • GB395784A - Improvements in projection printing machines particularly for sound films : en
  • US1919192A - Fluid heater : en
  • AT134230B - Hollow body for high pressures and method of manufacturing the same. : de en
  • CA334355A - Cemented pile fabric : en fr
  • AT134271B - Safety fuse. : de en
  • CA334373A - Electric precipitation apparatus : en fr
  • US1919602A - Valve : en
  • US1919856A - Valve and cock : en
  • DK47576C - Scanning device for television systems and the like. : da en
  • FR749695A - Process to prevent the deposit of mist on the sights of breathing apparatus : en fr
  • US1920017A - Overload release mechanism : en
  • USD90356S - Design fob a shoe sole : en
  • US1919388A - Safety razor : en
  • US1919767A - Bracket : en
  • DK47564C - Brake device for Bicycles with Freewheel hub with Retirement brake. : da en
  • FR749820A - Clip or staple especially for garters : en fr
  • US1919803A - Measuring and indicating system : en
  • CA334396A - Friction mechanism : en fr
  • US1919868A - Safety curtain for presses : en
  • US1919365A - Fire-fighting equipment : en
  • US1919692A - Process of making frozen confections : en
  • US1920016A - Milk dispenser : en
  • US1920079A - Driving mechanism : en
  • FR749518A - Device for the elimination of interference in the reception of radio transmissions : en fr
  • CA334294A - Grooved pulley : en fr
  • US1919897A - Baling machinery : en
  • US1920068A - Closure with valve for bottles or the like : en
  • US1919564A - Means for cleaning sewage filter beds : en
  • DE581218C - Process for the preparation of black Pb O, a new modification of the red lead : de en
  • DE581384C - Float valve with a special shut-off valve in the supply line : de en
  • GB395827A - Improvements relating to tachometer generators for motor vehicles and the like : en
  • US1919466A - Electric distribution system : en
  • US1919792A - Vat dye printing : en
  • GB395826A - Improvements in or relating to fire extinguishing apparatus for motor and other vehicles : en
  • DE581580C - Switching device to be placed freely floating on the bell shaft of an alarm clock : de en
  • FR749504A - Device for fixing springs on the bottom of the carcass of seats, cushions or other : en fr
  • FR749558A - Focusing device for optical devices : en fr
  • DE581331C - Process for the preparation of 1-phenyl-2-alkylaminopropan-1-ols hydroxylated in the phenyl nucleus : de en
  • AT134292B - Centrifugal process for separating the mother liquor from crystals or crystal fillings. : de en
  • FR749693A - Apparatus for receiving, storing and lifting materials such as, for example, household refuse : en fr
  • GB395787A - Improvements in and relating to insulated electric terminals : en
  • DE581314C - Quick closing device for rotary valve : de en
  • FR749479A - Multi-panel tilting and swiveling display shelving unit independently tilting : en fr
  • FR749584A - Galoshes mounting system and resulting industrial product : en fr
  • GB395900A - Improvements in duplicating machines : en
  • FR749547A - Multiple combination plow for tractor front axle : en fr
  • FR749581A - Apparatus used for checking the minimum hearing in alternating current measuring devices, more particularly for the inaudible or barely audible frequency band : en fr
  • GB396002A - Improvements in or relating to bee feeders : en
  • US1919343A - Dust collector for inclosed brake : en
  • DE581348C - Time remote switch for stairwell lighting with a thermostat, which is heated by a heating coil in the remote control circuit : de en
  • DE581362C - Needle bar for flat weft knitting machines : de en
  • GB395869A - Improvements in or relating to stationery cabinets : en
  • GB395875A - Improvements in or relating to display racks or stands : en
  • FR749646A - Advanced bumper : en fr
  • DE581419C - Damper device with damper plates on the turning poles : de en
  • FR749474A - Detaching device for products from grain milling : en fr
  • US1919711A - Can punch : en
  • US1920051A - Poultry house : en
  • FR749653A - Stackable rattan and bentwood seats and their manufacturing process : en fr
  • US1919318A - Back hair confiner : en
  • USD90378S - camera casing : en
  • AT134300B - Voter facility. : de en
  • GB395776A - Improvements in fasteners for bonnets of automobiles and for analogous purposes : en
  • AT134310B - Pocket lighter. : de en
  • DE581592C - Cable scales for hoists : de en
  • FR749485A - Device intended to reduce ventilation losses in machines carrying fluid currents and operating empty : en fr
  • AT134313B - Lighter with a spring lid and a wick cap detachably attached to it. : de en
  • AT134388B - Apparatus for optical repeat adjustment. : de en
  • US1919284A - Apparatus for measuring alternating current : en
  • US1919759A - Safety razor : en
  • DE581409C - Drive for guiding devices of reversible water turbines, which are flowed through periodically in opposite directions : de en
  • FR749490A - : fr
  • DE581504C - Method and device for the simultaneous degassing of several metal baths in molds by means of a rocking device : de en
  • FR749575A - Process for the manufacture of superior insulators for the technique of weak or intense currents : en fr
  • GB395918A - Improvements in or relating to the filtration of gases : en
  • US1919334A - Tube for mercury boilers : en
  • US1919247A - Rotary sprinkler : en
  • US1919714A - Method for preparing insoluble pigments : en
  • US1920109A - Apparatus for producing packing strips : en
  • US1919265A - Thermostat : en
  • DE581238C - Process for the production of alcohols : de en
  • AT134255B - Process for the production of highly corrosion-resistant alloys of aluminum with up to about 50% magnesium. : de en
  • US1919840A - Knee kicker : en
  • US1919671A - Auto window operating means : en
  • DE541213C - Piano with radio receiver : de en
  • DE581361C - Pressing device for flat weft knitting machines : de en
  • DE581369C - Pendulum saw, the saw of which is guided in a straight line by a four-bar linkage and a guide : de en
  • CA334383A - Stoker fuel distributor : en fr
  • US1919887A - Rouge applicator : en
  • US1920005A - Joseph dixon crucible company : en
  • FR749740A - Automatic emptying device for ice machine : en fr
  • US1919295A - Weft replenishing mechanism : en
  • US1919394A - Pipe table : en
  • US1919756A - Process of tanning : en
  • USD90362S - Design por a cooking utensil or like article : en
  • US1919667A - Merchandise dispensing apparatus : en
  • US1919881A - Pipe cutter : en
  • US1920151A - Potential producing cell : en
  • US1919429A - Copy holder : en
  • US1919972A - Agitating and feeding mechanism for stokers : en
  • CA334255A - Two-stroke cycle engine : en fr
  • AT134205B - Device and method for the determination of leaks in oil-filled cable systems. : de en
  • AT134371B - X-ray tube. : de en
  • GB396007A - Process for the production of white opaque enamels : en
  • AT134358B - Machine for creating a firm connection between overlapping ends of metal strips. : de en
  • DE581240C - Method and device for steam turbine systems for diverting the auxiliary turbine exhaust steam : de en
  • CA334315A - Rail anchor : en fr
  • AT134211B - Method for coupling networks of different frequencies. : de en
  • CA334369A - Rail joint : en fr
  • CA334348A - Sink leg : en fr
  • DE581291C - Device for tensioning ski tips : de en
  • DE581341C - Loudspeaker arrangement for rooms with strong reverberation : de en
  • DE581427C - Electric sewing machine drive with the armature of the electric motor placed on the handwheel shaft : de en
  • DE581482C - Fabric printer for sewing machines : de en
  • FR749769A - Process for the manufacture of a high voltage electric cable and cable obtained by this process : en fr
  • CA334244A - Artificial leg : en fr
  • AT134219B - Image composition device for television receivers. : de en
  • CA334285A - Pulping and shredding system : en fr
  • AT134217B - Multiple brush selector with mechanical brush selection. : de en
  • US1919326A - Accessory for automobiles : en
  • US1919300A - Molding : en
  • US1919793A - Engine : en
  • US1919748A - Saw : en
  • US1919975A - Electrical heater for thermal relays : en
  • US1919467A - Amusement apparatus : en
  • US1919625A - Automatic fire protection damper : en
  • US1920081A - Laminated rigid structural material : en
  • CA334394A - Alternating current motor : en fr
  • DE581391C - Photographic film case : de en
  • CA334300A - Inclined shackle : en fr
  • DE581294C - Sliding shoe : de en
  • DE581532C - Device for lining the inner surface of chimneys and other hollow bodies : de en
  • US1919407A - Vegetable and orchard heater : en
  • GB395851A - Improvements in and relating to electric discharge devices : en
  • GB395959A - Improvement in high-tension electric batteries : en
  • GB396036A - Improvements in a process and apparatus for stamping or impressing thin sheets or plates : en
  • GB395916A - An improved control for the adjustment of the rolls of rolling mills : en
  • AT134244B - Process for the production of alumina from clay and other alumina-containing substances. : de en
  • CA334370A - Flexible insulated pipe : en fr
  • DE581589C - Device for the even distribution of the loading of mechanical roasting ovens : de en
  • FR749720A - Album for phonograph records : en fr
  • AT134369B - Equipment for restaurants, exhibitions, etc. like : de en
  • CA334367A - Nut preparing and distributing process : en fr
  • DE581352C - Protective device for multi-phase AC machines, especially single armature converters : de en
  • DE581229C - Process for the production of fast drying sulphided fatty oils : de en
  • DE581306C - Method and device for protecting a device for conveying liquefied gases by means of a pump : de en
  • DE581398C - Damping device on self-acting, pressure-operated auxiliary power clutches for motor vehicles : de en
  • DE581508C - Vehicle wheel with replaceable rim : de en
  • DK47583C - Device for Lawn Mowers. : da en
  • USD90363S - Design : en
  • FR749604A - Body : en fr
  • FR749614A - Rolling table : en fr
  • FR749703A - Stocking protector or sock : en fr
  • GB395803A - Improvements in electric protective arrangements : en
  • DE581536C - Microscope for examinations in incident and transmitted light : de en
  • US1919196A - Whirling sprayer : en
  • US1919218A - Variable speed power transmission mechanism : en
  • US1919529A - Pneumatic lift plunger : en
  • GB395868A - Improvements in and relating to apparatus for playing games : en
  • FR749821A - Studio sideboard convertible into a dining table : en fr
  • GB395882A - Improvements in or relating to electric discharge tubes and apparatus incorporating the same : en
  • FR749463A - : fr
  • FR749727A - Automobile rear axle body and method of manufacturing such a body : en fr
  • DE562066C - Device for determining the exposure position (external orientation) of measurement images : de en
  • DE581328C - Process for the preparation of acridone and substituted acridones : de en
  • FR749535A - Improvements to doctor blades for textile and other machines : en fr
  • FR749753A - Improvements to temperature indicators, especially for radiators : en fr
  • FR749798A - Brake shoe improvements : en fr
  • GB395804A - Improvements relating to luminous gas discharge tubes : en
  • US1919220A - Apparatus for mixing concrete : en
  • DE581554C - Roller weir with attachment flap : de en
  • GB395814A - Improvements in or relating to vacuum cleaners : en
  • FR749425A - Improvements to devices for advertising : en fr
  • GB395976A - Improvements in machines for testing abrasive qualities of materials and for testing lubricants : en
  • FR749523A - Device for the manufacture of handles for knives or the like, and industrial products resulting therefrom : en fr
  • GB395982A - Improvements relating to the control of eddy current track brakes : en
  • US1919520A - Controlling means : en
  • US1919854A - Cleaning apparatus : en
  • US1919214A - Electricity meter : en
  • DE581401C - Swivel holder for ashtray : de en
  • FR749610A - Pavement with invisible expansion joints : en fr
  • GB395991A - Generators for producing a mixture of water-gas and coal-gas : en
  • DK47582C - Arrangement for ships with main boilers placed on a deck or platform which is higher than the tank top or the bottom of the ship and with bunkers located below the boiler room. : da en
  • US1919321A - Display device : en
  • US1919940A - Nut for nut and screw fastened installations : en
  • US1920056A - Wire cutting and twisting device : en
  • US1920158A - Apparatus : en
  • FR749571A - Underground electric cable for high and low intensity currents : en fr
  • DE581424C - Electric single drive for fast rotating bodies with vertical shaft, in particular rayon spinning pots, twisting spindles and the like. like : de en
  • FR749507A - Reinforced cement floor : en fr
  • FR749567A - Slat for openwork drawing device for rectilinear picking looms : en fr
  • FR749522A - Knitting Machine Improvements : en fr
  • USPP71P - Strawberry plant : en
  • DE580972C - Cylindrical sieve dewatering machine or rotating knot catcher for paper and wood pulp production : de en
  • DE581591C - Flow meter : de en
  • GB395737A - Improvements in or appertaining to the manufacture or treatment of paper for use in electrical insulation : en
  • DE581530C - Double sofa bed : de en
  • GB395769A - Improvements in laying boxes for fowls : en
  • US1919341A - Storage battery : en
  • US1919922A - Game projecting apparatus : en
  • GB395970A - Obturating device for preventing the re-filling of bottles, flasks and the like : en
  • GB395940A - Improvements in cam systems for pearl stitch knitting machines with jacquard attachment : en
  • US1919556A - Process for radio direction, locating observation, and the like : en
  • AT134273B - Method and device for the production of separators, filters, diaphragms or the like from porous or porous and non-porous soft to hard rubber and the like. like : de en
  • AT134236B - Lock with an insert plate cut out according to the cross section of the key. : de en
  • US1919416A - Evacuation of condensate : en
  • US1919607A - Telegraph system : en
  • AT134294B - Process for the production of porous masses and objects. : de en
  • AT134302B - Lectern. : de en
  • US1919217A - Loading machine : en
  • US1919413A - Automatic valve : en
  • US1919713A - Draft gauge : en
  • US1920003A - Timing mechanism : en
  • US1919512A - Spur gear speed adapter : en
  • US1919781A - Method and apparatus for conditioning air : en
  • US1920103A - Well tool : en
  • FR749609A - Improvements to aluminum and magnesium alloys : en fr
  • GB395865A - Improvements in or relating to the manufacture of phosphorus : en
  • GB395915A - Improvements in pantographic devices : en
  • DK47575C - Light signal coupling, especially for railway operations. : da en
  • CA334359A - Glass tubing and cane manufacture : en fr
  • DE581267C - Jaw crusher with two jaws : de en
  • FR749594A - Instrument for picking up and handling small objects : en fr
  • FR749569A - Manufacturing process for new anthracene and anthraquinone dyes : en fr
  • FR749583A - Method and apparatus for descaling the heating surfaces of heating tubes, boilers and the like : en fr
  • DE581515C - Stop link for the slide of zippers with cover strips : de en
  • DE581301C - Centrifugal machine driven by an electric motor and suspended in a pendulum manner : de en
  • FR749685A - Process for manufacturing magnesia-based heat insulating products : en fr
  • GB395793A - Improvements in nozzles for spray producers : en
  • US1919360A - Crane frame : en
  • US1919381A - Combination safety razor case and used blade container : en
  • US1920146A - Fluid operated motor : en
  • US1920009A - of wilmington : en
  • US1919200A - Headlight testing device : en
  • US1919725A - Copper base alloy : en
  • DE581320C - Device for severing a section from a traveling strip in wrapping machines : de en
  • DE581528C - Process for the production of percutaneously effective solutions of hormones of a protein-like character which are stable for some time : de en
  • DE581562C - Electrical capacitor, consisting of individual, alternately arranged, conductive and non-conductive layers, the latter made of cellulose derivatives : de en
  • GB395817A - Improvements in electric heating pads for treatment of the body : en
  • GB395886A - Closed removable needle bearing : en
  • US1919267A - Electric insulation : en
  • GB396043A - Improvements in printing plate assemblies : en
  • FR749437A - Circuit tester : en fr
  • GB395928A - Improvements in and connected with an automatic device for the mechanical, and electrical operation of burglar alarms : en
  • GB396010A - Improvements in or relating to the manufacture of plaited incandescent mantles : en
  • US1919305A - Coupler : en
  • US1919688A - Branding device : en
  • US1919538A - Process and apparatus for making electrical measurements : en
  • US1920113A - Speed indicating device : en
  • US1919510A - Apparatus for lowering pipes in wells : en
  • FR749430A - Transmitter device for telewriting machines : en fr
  • FR749519A - Improvements in the manufacture of bags, pouches, envelopes and other similar articles : en fr
  • US1919524A - Retractable landing gear : en
  • US1920121A - Apparatus for making coffee : en
  • US1919600A - Hair waving device : en
  • US1919698A - Apparatus for the agglomeration of solid carbon dioxide : en
  • FR749733A - Plastics for films, films, threads and various other uses : en fr
  • CA334342A - V-type engine : en fr
  • US1919791A - Eye testing apparatus : en
  • US1920097A - Distillation of tar, etc. : en
  • GB395933A - Improvements in machines for folding and cementing strips or the like in the manufacture of boots and shoes : en
  • US1919585A - Method of securing synchronism in sound films : en
  • US1919916A - Insect trap : en
  • US1920019A - Sack or bag holder : en
  • AU1012932A - Ferrous metal and process for producing same : en
  • DE557516C - Process for the production of oxygen-active acetone : de en
  • FR749438A - Improvements to direct current transformation systems : en fr
  • FR749454A - Improvements in airport construction : en fr
  • FR749843A - Process for the preparation of non-detonating gasoline : en fr
  • US1919676A - Method of making invertase preparations : en
  • USD90359S - Design fob : en
  • US1919454A - Adhesive : en
  • US1919617A - Process for sulphating olefines : en
  • US1919747A - Apparatus for festooning cloth : en
  • US1919740A - Edge setting machine : en
  • US1919246A - Rotary sprinkler : en
  • USD90368S - Design fob a boiler heateb : en
  • US1919614A - Fine adjustment for potentiometers : en
  • DE581520C - Blowdown valve : de en
  • FR749724A - case for eyeshadow sticks, shaving soap and other similar products : en fr
  • DE581224C - Transmission system for low frequency and carrier frequency telephony in pupinized cables : de en
  • US1919842A - Process for the treatment of gaseous mixtures containing hydrogen : en
  • US1919621A - Lock-nut device : en
  • US1920031A - Electric switch : en
  • DE581531C - Cupboard, shelf or the like : de en
  • FR749480A - Compensating master cylinder : en fr
  • US1919185A - Cooker and cooler : en
  • USD90372S - Charles miller : en
  • US1919807A - Trustee : en
  • US1919764A - Cutting torch : en
  • US1920010A - Friction brake : en
  • US1919490A - Source of light and method of operating the same : en
  • US1919568A - Partition and wall : en
  • US1919938A - Means for securing a metallic bridge to metallic lens rims : en
  • US1919409A - Signal control apparatus : en
  • US1919744A - Cover for automobile rumble seats : en
  • US1919993A - Oscillation generator : en
  • CA334351A - Ammonium sulphate production : en fr
  • DE581454C - Arrangement for the excitation of commutator machines in the stand with slip frequency : de en
  • FR749511A - Arrangement of seats in performance halls : en fr
  • FR749651A - Method and apparatus for washing and laundering linens and fabrics : en fr
  • GB395789A - Improvements in or relating to the priming or coating of timber with creosote, paint, fireproofing or other liquids : en
  • GB396061A - Improvements relating to stuffing-box substitutes : en
  • GB396418A - A device for the accommodation of measured quantities of cotton wool for ear and nose treatment : en
  • DE581373C - Gas knife support : de en
  • US1919219A - Card printing and punching mechanism : en
  • US1920107A - Process and apparatus for treating cotton seeds and other grain : en
  • FR749764A - Improvements to ice-keeping devices : en fr
  • US1920123A - Radial pump : en
  • US1919250A - Propeller wheel for fans : en
  • US1919402A - Steam driven fluid compressor : en
  • US1919960A - Regulator control system : en
  • US1920055A - Shock absorber : en
  • US1920111A - Cop winding frame : en
  • AT134208B - Device for braking induction motors. : de en
  • US1919302A - Mine conveyer : en
  • US1919637A - Tube manufacture : en
  • US1919794A - Safety razor : en
  • US1919618A - Process of making ethyl alcohol : en
  • US1919806A - Magnetic material : en
  • US1919197A - Air conditioning system : en
  • US1919770A - String bean cutter : en
  • US1919889A - Manufacture of imides of dicarboxylic acids : en
  • US1919271A - Lumber rack : en
  • US1919795A - Subharmonic frequency producer : en
  • US1919802A - Apparatus for testing insulation : en
  • US1919947A - Method of recovering metals and metallic oxides : en
  • GB396058A - Process for eliminating arsenic and antimony from iron ores and manganese ores : en
  • AT134362B - Device for feeding furnaces with pulverulent fuel. : de en
  • US1919852A - Ornamental stitch sewing machine : en
  • DE581323C - Device for sealing unsuccessful, pressurized boreholes : de en
  • DE581214C - Process for the annealing of pipe-length weld seams by annealing and quenching : de en
  • DE581560C - Wall pot for electrical installation equipment : de en
  • FR749557A - Device for guiding and tensioning cables on hoists, winches, etc. : en fr
  • GB396008A - Improvements in or relating to high frequency distribution systems for radio reception : en
  • US1919859A - Dispensing cap : en
  • US1919882A - Brake construction : en
  • US1920073A - Grinding machine and the like : en
  • GB396017A - Improvements in flywheel magnetos : en
  • US1919594A - Process for recovering volatile liquids from solvents and the apparatus therefor : en
  • AT134331B - Soil cultivation device driven like a pendulum. : de en
  • GB395890A - Improvements in the manufacture of bearings for rotary shafts : en
  • GB396022A - High-frequency transformer : en
  • US1919344A - Propulsion axle for motor vehicles : en
  • US1919769A - Core plug : en
  • CA334382A - Locomotive stoker : en fr
  • FR749570A - Sulfur ores roasting process : en fr
  • US1919894A - Gas regulator : en
  • USD90369S - Design for a shoe or similar article : en
  • US1919458A - Filler for egg cartons and the like : en
  • US1919687A - Knockdown display rack : en
  • US1919733A - Cowl ventilator : en
  • AT134379B - Photographic film useful for color image and sound recording and process for making the same. : de en
  • CA334270A - Railway car seal : en fr
  • DE581497C - Double heart : de en
  • FI15334A - Tvättmaskin och foderångkokare : en fi
  • US1919900A - Auger guide : en
  • US1919715A - Method for preparing dispersions of insoluble pigments : en
  • US1919998A - Friction clutch block : en
  • US1919473A - Thermostat : en
  • US1919470A - Carburetor : en
  • DE581421C - Transformer in which the secondary winding is in an electrically conductive connection with consumer devices that are at a high electrical potential, in particular with the heating glow body in electrical discharge tubes : de en
  • DE581385C - Two-roller mill : de en
  • FR749696A - Device for softening water or other liquids : en fr
  • US1919706A - Means for playing a game of skill : en
  • GB395820A - Improvements in the manufacture and production of azo dyestuffs : en
  • FR749848A - Fermentation process : en fr
  • GB395828A - Bathroom cabinet : en
  • GB396021A - A safety apparatus for aircraft for providing an easy exit in case of emergency : en
  • GB396057A - Improvements relating to impact testing machines : en
  • FR749776A - New shielding system : en fr
  • FR749599A - Trim for mechanical razors : en fr
  • US1919303A - Apparatus for separating dust from air and gases : en
  • US1919481A - Photographic screen : en
  • DE581495C - Process for processing fruit juices, in particular agrumen juices, for the purpose of obtaining citric acid or its salts : de en
  • US1919275A - Photoprint drier : en
  • US1920026A - Rohm & haas company : en
  • US1919296A - Mechanical pool ball racking device : en
  • US1919704A - Distillation of tar at a coal distillation plant and apparatus therefor : en
  • US1919833A - Azo-dyestuffs and process of making same : en
  • US1919988A - Rectifier : en
  • FR749649A - Method applicable in the construction of electric capacitors : en fr
  • GB396076A - Improvements relating to electric starting systems for motor vehicle engines : en
  • US1919487A - Hosiery : en
  • AT134225B - Electrodynamic loudspeaker. : de en
  • AT134375B - Cleaning straps for shoes. : de en
  • DE581299C - Overburden spreader : de en
  • US1919469A - Waffle extractor : en
  • US1919729A - Seed and plant disinfectant : en
  • US1919828A - Liquid measuring system : en
  • DE581290C - Drive device for the coating bar of flat combing machines : de en
  • US1920065A - Method of surface finishing articles made of hydraulic cement mixtures : en
  • FR749588A - Improvements to pressurized fluid or vacuum brake devices : en fr
  • GB395938A - Improvements in or relating to the driving of continuous wire mills : en
  • FR749524A - Further training in the establishment of stockings, knee-socks, socks and the like : en fr
  • US1919460A - Work guide for sewing machines : en
  • US1919908A - Urological table : en
  • FR749640A - Improvements made to the closing of all paper, canvas or other bags, in particular those used for heavy materials : en fr
  • FR749552A - Automatic sheet printing machine with fixed cliché board and movable impression cylinder : en fr
  • FR749498A - Device for transmitting reciprocating movements of translation or rotation, as well as simultaneous translation and rotation at any angle in different planes : en fr
  • GB395772A - Improvements in two-stroke cycle internal combustion engines : en
  • GB395850A - Improvements relating to plansifter sieves : en
  • GB395758A - Improved system for the voltage transformation of direct current electrical energy : en
  • DE581118C - Tablet feed for wrapping machines : de en
  • DE581550C - Device to make the frequency and amplitude proportional brightness fluctuations visible to the eye in a manner otherwise known when hearing sound energy : de en
  • GB396019A - Watch case : en
  • FR749444A - Briquette press : en fr
  • GB396378A - Apparatus for training air pilots on the ground, and providing the sensation of controlled flight for instructional and/or amusement purposes : en
  • GB395821A - Method and apparatus for providing fuel mixture from heavy oils such as diesel, gas or fuel oil, for supply of an internal combustion engine : en
  • DE581412C - Heating or cooling vessel : de en
  • FR749500A - New combination of mechanical transmission units for winches of handling or earth moving equipment : en fr
  • GB395920A - Improvements in the construction of light slits for machines for recording sound photographically, or reproducing sound from photographic records : en
  • FR749420A - Pumice stone hand brush : en fr
  • FR749641A - Wave superimposition receiver : en fr
  • GB396009A - Improved apparatus for use in the withering of tea : en
  • DE528691C - Process for heat or cold generation or for water production or drying with the help of atmospheric air : de en
  • FR749629A - Cut-off mechanism for machines for making cigarettes from a continuous roll : en fr
  • GB396079A - Process for the manufacture of vinyl substituted aromatic compounds : en
  • GB395907A - Improvements in and relating to welding apparatus : en
  • GB396015A - Improved method of fining glass and glass produced thereby : en
  • FR749630A - Nozzle for spraying materials intended to be applied by spraying : en fr
  • US1919597A - Closure for metal drums or the like : en
  • US1919872A - Tempering : en
  • GB395783A - Level winding reel : en
  • GB395949A - Process for producing fast prints on cellulose ester fabrics : en
  • FR749473A - Laundry wringer with air control : en fr
  • FR749751A - Soap, known as household soap, and process for its manufacture by cold route : en fr
  • US1919264A - Low expansion black glass and method of producing it : en
  • US1919905A - Tuning coil : en
  • US1920063A - Process for weighting natural silk : en
  • GB395796A - Improvements relating to display devices : en
  • FR749799A - Multiple light signaling device : en fr
  • GB396107A - Improvements in or relating to the hydration of olefines : en
  • FR749744A - Electric heater : en fr
  • FR749618A - Improvements to mechanical toys : en fr
  • FR749832A - Electrostatic machine with independent excitation : en fr
  • GB395836A - Improvements in wrapping machine : en
  • US1919758A - Remote control apparatus : en
  • US1919504A - Ammeter : en
  • US1919518A - Machine for winding paper belts : en
  • DE581307C - Electric AC switch with arc extinguishing by steam : de en
  • DE581231C - Metallic roller for baths, especially acid baths : de en
  • DE581456C - Single or multi-phase, three or multi-winding transformer : de en
  • FR749537A - Mill comprising a rotating cylinder or grinding wheel against which is applied a fixed block or grinding wheel : en fr
  • GB395757A - An improvement in chairs or seats : en
  • GB395980A - Improvements in high-tension dynamo-electric machines : en
  • GB396026A - Improvements in or relating to the manufacture of ebonite and articles composed thereof : en
  • FR749482A - Enhancement with sticks : en fr
  • FR749677A - Glove enhancements : en fr
  • GB395983A - Improvements in tunnel kilns : en
  • FR749681A - Improvements to elastic wheels for vehicles running on rails : en fr
  • GB395794A - Improvements in and relating to electric discharge devices : en
  • DE581502C - Process for the production of commutator bars from two materials : de en
  • DE581223C - Device for the equalization of the stepping mechanisms of telephone stations located on a common line : de en
  • DE581581C - Electromagnetic switch for automatic, adjustable, short-term closing or opening of a contact : de en
  • FR749529A - Ring gas burner : en fr
  • DE581526C - Process for the production of a wood oil stand oil for paints : de en
  • DE581522C - Automatic perforated disc insertion machine for galvanic elements : de en
  • DE581309C - Process for wet treatment, especially dyeing, of rayon spools on spindles : de en
  • GB395888A - Improvements relating to the controlling of the flow of fluids in conduits : en
  • DE581273C - Rotary piston machine with sickle-shaped working area : de en
  • FR749814A - Safety device for lane changes and signals : en fr
  • FR749692A - Device for fixing enamel signs on supports : en fr
  • FR749756A - Spray bundle : en fr
  • GB395943A - Collapsible bottle box of cardboard : en
  • US1919230A - Method of relaying by current transformer and relays : en
  • US1919593A - Chain pipe wrench : en
  • US1919644A - Process for purifying dry cleaners' solvents : en
  • US1919992A - Impulse storage mechanism : en
  • FR749517A - Improvements to the assembly of the front fenders, headlights and radiator on the body of a vehicle : en fr
  • DE581208C - Spool bank replacement device for wing spinning, wing twisting and similar textile machines : de en
  • DE581402C - Wire-spoke wheel, in which the rim is detachably fixed on the brake drum : de en
  • FR749501A - Extendable shelves with adjustable shelves : en fr
  • FR749749A - Improvements in relief photography : en fr
  • DE581564C - Process for the continuous volatilization of metals in a rotary kiln : de en
  • GB395978A - Milling and like machine tools : en
  • FR749555A - Improvements to pipe cutters : en fr
  • FR749531A - Automatic locking device for sliding parts : en fr
  • CA334402A - Laminated panel : en fr
  • US1919964A - Meat-cubing machine : en
  • US1919815A - Press : en
  • US1919857A - Destructive hydrogenation of coals, tars, mineral oils, and the like : en
  • US1919874A - Signal mechanism for highway intersections : en
  • US1919502A - Method of neutralizing butter fat : en
  • US1919822A - Piling implement : en
  • US1919619A - Spreading apparatus : en
  • FR749548A - Improved process and apparatus including application for treating hats and other articles by washing, finishing, dyeing or other baths : en fr
  • GB395951A - Manufacture of azo-dyestuffs : en
  • AT134357B - Machine gun. : de en
  • DE581256C - Process for the manufacture of tanning agents : de en
  • FR749688A - Shock absorber system : en fr
  • US1919315A - Track frame structure : en
  • USD90365S - Design for a centrifugal separator frame : en
  • US1919558A - Electric heater : en
  • US1920112A - Spring heel seat : en
  • CA334368A - Switching mechanism : en fr
  • DE581433C - Liquid filter : de en
  • DE581440C - Device for printing razor blades : de en
  • US1919186A - Apparatus for handling bent metal : en
  • US1919838A - Nested base for lamps, etc. : en
  • US1919862A - Shoe : en
  • AT134215B - Connection between the graphite electrode and the metal parts for supplying current to the same in vacuum metal vapor arc apparatus. : de en
  • AT134249B - Process for void-free casting of iron and non-ferrous metals. : de en
  • US1919397A - Corn planter : en
  • AU924532A - Improved method of and apparatus for mixing asphaltic andother paving compounds : en
  • FR749492A - Universal automatic rolling machine for permanent corrugations : en fr
  • US1919442A - Fluid pressure brake : en
  • FR749572A - Roller refinements for drawing sheet glass : en fr
  • FR749838A - Motor control device : en fr
  • GB395833A - Improvements relating to electric switches or circuit breakers : en
  • GB395952A - Improvements in and connected with domestic fire grates : en
  • GB396013A - Improvements in rotary pumps of the fixed abutment type : en
  • FR749506A - Volume control system for radio receivers and the like : en fr
  • DE581288C - Window stay : de en
  • DE581568C - Corrugated cardboard : de en
  • GB395774A - A new or improved process for the preparation of soft rubber : en
  • FR749846A - Improvements in the electrolytic deposition of rhodium : en fr
  • DE581235C - Device for automatic feed of the drill bit : de en
  • DE581496C - Plate cylinder in sheet-fed rotary rubber printing machines : de en
  • DE567486C - Additional gas heating for horizontal hot water pressure boiler : de en
  • FR749637A - New cardboard packaging for fruits and early vegetables : en fr
  • FR749689A - Device for improving the evacuation of the heat given off by electric windings and windings, housed in a housing : en fr
  • FR749787A - Improvements to leaf springs : en fr
  • GB395992A - Improvements in and relating to a slide rule : en
  • FR749833A - Dyeing machine : en fr
  • GB396069A - Improvements in and relating to bearings : en
  • US1919588A - Blade for windmill impellers : en
  • AT134356B - Connection tool for metal tape strips. : de en
  • GB395780A - Improvements in and relating to speed governing mechanism for prime movers : en
  • GB396093A - Improvements relating to nuts and bolts : en
  • FR749627A - Stockings and its manufacturing process : en fr
  • GB395768A - Improvements in or relating to lavatory basins : en
  • FR749664A - Method of mulching chairs or similar objects : en fr
  • US1919875A - Propeller pitch regulator : en
  • FR749543A - Improvements to drainers for sinks : en fr
  • DE581465C - Spinning bath container for rayon spinning machines : de en
  • GB395765A - Improvements in domestic ovens : en
  • GB395934A - Improved lighting system for road vehicles, aircraft or watercraft : en
  • USD90353S - Design for a faucet : en
  • US1919256A - Automatic timing device : en
  • US1919491A - Reenforced column : en
  • US1919969A - Protective apparatus : en
  • FR749671A - Improvements in the manufacture of ethyl alcohol : en fr
  • GB395800A - Improvements in or relating to lifting and hauling gear for loading and unloading vehicles : en
  • AT134231B - Process for the production of tensile solid chains, rings or the like. : de en
  • DE581268C - Device for reducing the effective pressure of the fabric presser when darning with sewing machines : de en
  • FR749521A - Improvement in fungicide and insecticide preparations for plants : en fr
  • GB395957A - Improvements in and relating to the concentration of liquors in multiple effect and apparatus therefor : en
  • FR749461A - Process for the manufacture of readily soluble ether salts of leucon derivatives of tank dyes : en fr
  • GB395912A - Improvements in or relating to drying devices for separated coarse material in ball or tube mills : en
  • FR749806A - Furnace for the carbonization or coking of fuels with rotating platform supporting them : en fr
  • US1919658A - Manufacture of shoes : en
  • DE581297C - Extrusion press for ceramic goods and other plastic masses : de en
  • US1919268A - Blotter holder : en
  • FR749747A - Arrangement and additional flow device for siphons and basins of water closets or others : en fr
  • DE581312C - Device for the production of complete X-ray spectral diagrams of single crystals with the help of strongly diverging primary beams : de en
  • DE581317C - Synchronization and speed checker for cinematographic films : de en
  • FR749766A - Support console for universal assembly, particularly applicable to stackable wooden seats : en fr
  • DE581553C - Ferrari motor for clock and drives : de en
  • US1919426A - Bedstead protector : en
  • US1919530A - Memorial marker : en
  • US1919834A - Rescue device for submarines : en
  • FR749484A - Lock for removable rims : en fr
  • GB395853A - A process for the production of impregnating baths and printing colours containing arylides of 2.3 oxynaphthoic acid : en
  • DE581338C - Device for power recovery in electrically operated vehicles : de en
  • DE581400C - Anti-skid protection for motor vehicles : de en
  • US1919213A - Electricity meter : en
  • US1919313A - Combined starter and choke control : en
  • GB396034A - A process for the welding together of metal tubes or the like having thin walls : en
  • US1919262A - Spectacle case : en
  • US1919968A - Foot pedal : en
  • US1919395A - Synchronous motor : en
  • US1919590A - Blue to violet-blue water-insoluble azo-dyestuffs : en
  • FR749428A - Tile or metal slab : en fr
  • GB395815A - Improvements in or relating to loose-leaf ledgers or the like : en
  • FR749483A - Closing device for paint sprayer cups or cans : en fr
  • FR749532A - Device for starting high compression engines : en fr
  • FR749728A - Mechanical layout and construction process, applicable to all profiled volumes, used in all cases relating to fluid dynamics : en fr
  • GB395894A - Improvements in and relating to the production of artificial resins from polyhydric alcohols and polybasic acids : en
  • CA334350A - Composite sink : en fr
  • FR749409A - Device for converting direct current into alternating current : en fr
  • FR749513A - Transmitter device for telecriving machines : en fr
  • FR749707A - Electrically controlled and pressurized fluid actuated device for opening and closing car doors : en fr
  • US1919707A - Production of sulphate of ammonia : en
  • DK47562C - Hot water boiler for oil heating. : da en
  • FR749698A - Device for starting motor vehicles : en fr
  • US1919864A - Door operating means : en
  • US1919411A - Wiper mechanism for windshields and the like : en
  • AT134332B - Play tires. : de en
  • CA334290A - Electrolytic cell : en fr
  • FR749546A - Installation of machinery for vehicles, in particular for ships : en fr
  • FR749705A - Gas pressure regulator : en fr
  • CA334390A - Lubricating oil processing : en fr
  • AT134394B - Alarm device. : de en
  • FR749549A - Advanced projector : en fr
  • FR749554A - Improvement in tube expansion devices : en fr
  • FR749702A - Staple tape for all kinds of stitching and stitching devices : en fr
  • GB395752A - Improvements in or relating to the control of the frequency of magnetron oscillators : en
  • GB395839A - Improvements in and connected with amusement vehicles : en
  • GB396028A - Improvements in and relating to golf clubs : en
  • FR749579A - Large incandescent cathode rectifier : en fr
  • US1920092A - Cold air boot : en
  • USD90371S - Charles miller : en
  • DE581425C - Process for the production of self-lubricating bearings : de en
  • GB395862A - Method of producing highly emissive thermionic cathodes according to the metallic vapour process : en
  • US1919274A - Electric fuse : en
  • US1919860A - Hose coupling : en
  • AT134349B - Control lever for transferring dependencies in the signal box. : de en
  • USD90374S - op dunkirk : en
  • US1919489A - Tube mill bearing device : en
  • US1920155A - Core forming machine for electrical apparatus and method of making cores : en
  • US1919808A - Power supply system : en
  • CA334269A - Teapot : en fr
  • CA334299A - Cork and fibre product : en fr
  • US1920105A - Foot and cutting attachment for hemstitching machines : en
  • FR749694A - Central heating radiator and its manufacturing process : en fr
  • US1919231A - Unbalanced ratio relay scheme : en
  • US1919215A - Thunderstorm or electric field and potential indicator : en
  • US1919278A - Switch : en
  • US1919896A - Combination thresher and windrow pick-up : en
  • US1919324A - Control of furnace temperature and furnace wall construction : en
  • US1919447A - Semitrailer and auxiliary support : en
  • US1919703A - Apparatus for watering or spraying gardens and the like : en
  • AT134395B - Cylindrical container for ejecting speaking machine needles and the like. like : de en
  • DE581452C - Brush holder with brush pockets adjustable in width by moving one side wall : de en
  • DE581512C - Swiveling belt guide and belt tensioning pulley for spinning, twisting and similar textile machines : de en
  • AT134245B - Process for producing high-quality cast iron that is low in gas and low in oxide : de en
  • US1919726A - Rubber composition and method of preserving rubber : en
  • CA334274A - Classifying and separating machine : en fr
  • CA334246A - Security system for contractors : en fr
  • CA334298A - Shingle : en fr
  • FR749433A - Corrugated iron spool for spinning artificial silk : en fr
  • AT134352B - Switching device for overhead contact lines in railway systems in which locomotives for various types of electricity run. : de en
  • CA334339A - Brake lining making machine : en fr
  • US1919933A - Gaseous electric discharge device : en
  • US1919915A - Hitch device : en
  • AT134247B - Items made of steel alloys that require high fatigue strength, e.g. B. Containers, pipes, boiler components, etc. : de en
  • DE551776C - Process for the production of rhodanides : de en
  • DE581277C - Claw clutch, especially for change gears of motor vehicles, with claw teeth beveled on the strin surfaces : de en
  • DE581355C - Process for cleaning the gas filling of light tubes filled with contaminated noble gas : de en
  • DE581270C - Device for the continuous production of edible fat panels u. like : de en
  • FR749556A - Sanitary napkin with spongy velvet part incorporated into the canvas : en fr
  • US1919248A - Fluid seal for rotatable members : en
  • US1919772A - Knife sharpener : en
  • US1919463A - Metallic packing and method of making the same : en
  • US1919483A - Combined color filter and screen : en
  • US1919818A - Automatic control for hoisting machines : en
  • AT134385B - Protective cases for photographic cameras. : de en
  • AT134253B - Zinc alloy, especially for injection molding. : de en
  • DE580811C - Tin snips with a fixed straight lower knife and a driven, rotating circular upper knife : de en
  • DE580672C - Corner stitching machine : de en
  • FR749683A - Electrical line short-circuit warning and control device : en fr
  • GB395812A - Improvements in the manufacture of combs : en
  • GB395977A - Improvements in method of and means for protecting inscriptions : en
  • DK47584C - Air cooling device for automobile engines. : da en
  • DE581451C - Device to avoid brush noises in commutator machines with alternating directions of rotation, especially in rail motors : de en
  • FR749723A - Method for manufacturing textile yarns, with a view to obtaining particular creping effects : en fr
  • FR749831A - Device for supplying cartridges for automatic weapons, in particular for military aviation : en fr
  • GB395792A - Improvements in and relating to automatic wagon-tipplers : en
  • DE581519C - Low-water alarm for low-pressure boilers heated with gaseous or liquid fuels : de en
  • FR749491A - Shoe made of rubber or mainly rubber : en fr
  • GB396014A - Improvements in and relating to fire-grates : en
  • US1919237A - Sheet metal container : en
  • GB395823A - Improvements in or relating to coupling systems for thermionic amplifiers : en
  • DE581449C - Resistance arrangement below OEl : de en
  • FR749402A - Manufacturing process of aralkyl ethers : en fr
  • DE581434C - Oven for carrying out gas reactions at high temperature : de en
  • US1919836A - Jacketed apparatus for converting organic matter : en
  • US1919276A - Light signal : en
  • US1920020A - Casting mold : en
  • US1920144A - Aeroplane window cleaner : en
  • USD90358S - Design for a : en
  • US1919408A - Choke plug : en
  • AT134343B - Brakes, in particular for motor vehicles. : de en
  • US1919641A - Well plunger : en
  • US1920091A - Ash receptacle : en
  • US1919281A - Regulating means : en
  • US1919674A - Pneumatic puffing machine : en
  • GB395906A - Improvements in or relating to presses for extruding metal tubes : en
  • GB396430A - Improvements in dyeing textile materials : en
  • DE581505C - Device for making tubes from glass : de en
  • US1919682A - Propelling mechanism for airplanes : en
  • US1920130A - Clamping device : en
  • AT134277B - Process for the production of porous or microporous goods from vulcanized rubber and similar materials. : de en
  • AU1322833A - Improvements relating to the manufacture of ethyl alcohol : en
  • FR749777A - Method and apparatus for drying pipes : en fr
  • GB396001A - Improvements in and relating to mercury and like fluid flow electric switches : en
  • CA334247A - Brakeshoe relining device : en fr
  • US1919310A - Process for the simultaneous production of phosphorus and alumina : en
  • US1920104A - Fluid transmission system : en
  • DE581516C - Book, the pages of which are held together by rubber sticks : de en
  • GB396071A - Improvements in and relating to resinous compositions and methods of making the same : en
  • US1919554A - Tripod head or the like : en
  • US1919565A - Means for cleaning sewage filter beds : en
  • US1919819A - Package and method of sealing the same : en
  • US1919731A - Spectacles : en
  • US1919754A - Emergency brake control mechanism : en
  • US1920004A - Caster : en
  • AU762132A - Mixing Machine : en
  • FR749530A - Device for regulating, under load, the voltage of single-phase or polyphase transformers in combination with at least one auxiliary transformer : en fr
  • GB395989A - Light metal alloy, its use and process for its manufacture : en
  • AT134212B - Isolated power supply to the control grid of metal vapor valves. : de en
  • GB395968A - Improvements in the manufacture and production of complex metal compounds of ortho-hydroxyazo dyestuffs : en
  • CA334388A - Transmitter : en fr
  • US1919440A - Combination harvester-thresher : en
  • US1919448A - Filter : en
  • US1919660A - Shoe lasting apparatus : en
  • US1920093A - Method of producing alpha glassified surface : en
  • FR749684A - Light signaling device intended for calling personnel, in particular in cafes, restaurants, hotels, etc. : en fr
  • FR749790A - Method and apparatus for extruding products from artificial materials : en fr
  • DE581529C - Device for holding vases, glasses or the like with the aid of a rubber disk which can be expanded into a suction cup by means of an adjusting device : de en
  • US1919663A - Safety device for overhead electric lines : en
  • US1919228A - Drag line excavator : en
  • US1920157A - Vulcanizing press : en
  • AT134223B - Procedure and arrangement for the investigation of telecommunication lines. : de en
  • US1919337A - Thermostatic controller : en
  • US1919888A - Multiple signaling system : en
  • DE581510C - Command transmission device with acknowledgment using direct current : de en
  • DE581587C - Liftable and lowerable sealing strip for doors : de en
  • FR749593A - Improvements in surface hardening processes for austenitic steels and alloys : en fr
  • FR749668A - Improvements made to the sleeves or handles, in particular to the racket sleeves : en fr
  • GB395895A - Improvements in devices for truing grinding discs : en
  • CA334386A - Building material : en fr
  • GB395931A - A metal frame-unit for constructional purposes : en
  • DE581458C - Device for regulating the energy supply for electric arc furnaces : de en
  • FR749563A - Electrical coupling system : en fr
  • AT134327B - Lever bone reamer. : de en
  • SE77887C1 - : en
  • US1919206A - Signaling system for automotive vehicles : en
  • US1920098A - Hydraulic shock absorber : en
  • DE581383C - Tube fitting : de en
  • FR749704A - Parallel connection of incandescent filaments in electric light bulbs : en fr
  • GB395791A - Improvements in illuminating systems and apparatus for use in connection with motor vehicles : en
  • US1919424A - Fluid pressure brake : en
  • US1919997A - Safety device for hoisting engines : en
  • USD90394S - William franklin williamson : en
  • US1919389A - Planetary type surfacing machine : en
  • CA334313A - Photo-sensitive control apparatus : en fr
  • AT134377B - Method for operating an X-ray machine with high-voltage cables. : de en
  • FR749670A - Further training in drive systems : en fr
  • US1919194A - Method of making a printing surface : en
  • US1919508A - Automatic fire apparatus : en
  • US1919913A - Interlocking switch : en
  • US1919955A - Gas offtake apparatus : en
  • US1919640A - Albert clay myers : en
  • USD90354S - Design for a combined endpiece and temple for : en
  • US1920088A - Shoe fastening : en
  • US1919331A - Household filter : en
  • US1920022A - Bearing manufcture : en
  • US1920057A - Composite mat : en
  • US1919240A - Method and apparatus for the distillation of tar : en
  • US1919777A - Humidifier : en
  • CA334256A - Sandal : en fr
  • US1919327A - Thermostatic switch : en
  • US1920131A - Pouring spour for salt and like containers : en
  • FR749538A - Strip with electrical contactor for public roads for automatic signaling, contacting vehicles in a given direction of movement : en fr
  • FR749761A - Stitching plate system for the production of knitted fluff on circular stitch looms : en fr
  • US1919648A - Power blade control for road graders : en
  • US1919967A - Friction block : en
  • US1920012A - Internal combustion engine : en
  • AT134350B - Connection between the foldable handle and piston rod on bicycle air pumps. : de en
  • US1920119A - Television and picture transmitting apparatus : en
  • US1919431A - Control valve for retaining valves : en
  • US1919521A - Marine boiler : en
  • US1920047A - Dispensing nozzle : en
  • US1919472A - Sheave construction : en
  • AT134370B - Paper feed device for typewriters, typewriters and the like. like : de en
  • DE581573C - Method of hurling asbestos-cement pipes : de en
  • GB395861A - Free-wheel drives for motor vehicles : en
  • DE581378C - Multi-pole synchronous motor, especially for driving speaking machines : de en
  • DE581479C - Gate valves with parallel sealing plates, which are permanently pressed onto their seats by a spring arranged eccentrically to the plate center and which are under additional pressure in the closed position : de en
  • US1919478A - Prevention of iron and steel slugs entering slot machines : en
  • US1920106A - Tow line : en
  • US1919661A - Collar support : en
  • US1919665A - Bottle filling machine and method : en
  • US1919652A - Check issuing machine : en
  • AU711732A - Preventing corrosion of metallic surfaces : en
  • US1919269A - Garage : en
  • US1919222A - Navigational instrument : en
  • US1919378A - Automatic switching device : en
  • US1919539A - Wheel : en
  • US1919753A - Sound on film apparatus : en
  • AT134319B - Press or injection molding process. : de en
  • US1919650A - Rotary furnace : en
  • US1919477A - Braking attachment for sanding machines : en
  • US1919942A - Folder for sewing machines : en
  • US1919626A - Apparatus for purifying exhaust gas : en
  • US1919918A - Molding and pressing method and apparatus : en
  • DE581390C - Cassette changing device : de en
  • GB395950A - Improvements in or relating to hurricane lanterns : en
  • GB396016A - Improvements in fasteners for bonnets of automobiles and for analogous purposes : en
  • FR749478A - Alcohol manufacturing process : en fr
  • DE557370C - Method of joining refractory substances, e.g. B. tungsten carbide, with easily melting, z. B. steel or bronze : de en
  • DE581326C - Plaette press : de en
  • US1919393A - Metal door jamb : en
  • US1919511A - Quick reset mechanism for odometers : en
  • DE581403C - Track link made from several parts : de en
  • GB395802A - Improvements in and connected with the automatic control of combustion furnaces : en
  • FR749446A - Dispersions and treatment of organic materials with these dispersions : en fr
  • FR749760A - Improvement in suspension bridges : en fr
  • GB395889A - Photographic anti-halation layer : en
  • GB395761A - Improvements in or relating to the manufacture of hydrocyanic acid gas, particularlyfor use as a fumigant or the like : en
  • GB396012A - Improvements relating to revolving cowls for chimneys : en
  • GB395825A - Improvements in conduit fittings : en
  • FR749452A - : fr
  • FR749643A - Illuminated panel device particularly applicable as an automobile police sign or plate : en fr
  • GB395965A - Improvements in and relating to illuminated traffic signals : en
  • DE581324C - Heating of the rolling stock during rolling out : de en
  • FR749443A - Improvements to inking mechanisms for printing machines : en fr
  • AT134312B - Collapsible snowshoe. : de en
  • DE581371C - Device for graphical representation of any size : de en
  • FR749666A - Improvements to machines for projecting stock market prices : en fr
  • FR749758A - Life belt : en fr
  • FR749642A - Process for treating vulcanized rubber with ultraviolet rays : en fr
  • GB396023A - Improvements in filling bodies for washing towers and the like : en
  • FR749576A - Preventive protection of underground shelters against bombardment gas : en fr
  • CA334325A - Structural frame : en fr
  • US1919261A - Combination corset and brassiere : en
  • US1919311A - Door panel construction : en
  • US1919366A - Rubber lining for acid containers : en
  • FR749442A - Improvements to lenticular grating films : en fr
  • FR749711A - Refrigeration plant with cooling elements covered with ice : en fr
  • GB395811A - Improvements in or relating to horological instruments : en
  • FR749676A - Game : en fr
  • GB395995A - Machine for spreading of artificial fertilizers, seed, grain or the like : en
  • DE581283C - Valve for pneumatic tires with a locking body that is automatically adjustable inside the valve housing : de en
  • DE581380C - Device for changing the compression chamber in internal combustion engines, in which the cylinders can be moved against the crankshaft to compensate for changes in pressure : de en
  • DE581542C - Display device on the handle of the slide of photographic cassettes : de en
  • USD90393S - Bene tbicabd : en
  • FR749494A - Improvements to pneumatically actuated acoustic warning devices : en fr
  • GB395854A - Improvements in and relating to dynamo electric machines : en
  • GB396060A - Improvements in or relating to abrasive wheels or other abrasive articles : en
  • US1919436A - Indicator : en
  • US1919743A - Temperature controlled furnace fan : en
  • US1919959A - Absorbent filter for smoking appliances : en
  • US1920043A - Humidostat : en
  • FR749730A - Vehicle registration and signaling light plate : en fr
  • US1919348A - Internal combustion engine : en
  • US1920080A - Electrogravity lock : en
  • FR749561A - Spare wheel support swivel device : en fr
  • FR749489A - Stopping device for die rods for line composing and melting machines : en fr
  • FR749422A - Talking motion picture film with automatic progress control : en fr
  • CA334344A - Shoe manufacture : en fr
  • CA334362A - Printing press feeding mechanism : en fr
  • AT134258B - Process for the production of waterproof permanent laundry. : de en
  • DE555445C - Process for the production of hillshade plates for cartographic purposes : de en
  • GB396075A - Improvements relating to dynamos for motor vehicles : en
  • FR749411A - Improvements to fuel vaporizers for internal combustion engines and others : en fr
  • FR749560A - Automatic device to protect against slipping and skidding of automobiles and other vehicles : en fr
  • FR749424A - Device for remote control and signaling of moving parts : en fr
  • US1919515A - Excavating machine : en
  • US1919775A - Manufacture of aqueous dispersions : en
  • DE581521C - Rail, in particular curved rail, with a running surface made resistant to wear : de en
  • USD90367S - Design fob a commercial display unit : en
  • DE581490C - Firing pin consisting of slidable sleeves : de en
  • AU696732A - Improvements in and connected with ejecting devices for liquids andthe like : en
  • CA334254A - Collapsible tube : en fr
  • GB395847A - Improvements in apparatus for facilitating inhaling or distributing pulverulent products : en
  • GB395937A - Improvements in combined rear vision mirror and clock suitable for use on motor driven vehicles : en
  • GB396037A - Improvements in and relating to decorating surfaces : en
  • DE581423C - Oxide cathode for discharge vessels : de en
  • GB396073A - System of optical telephony : en
  • DE581538C - Insulating body made of mica for spark plugs : de en
  • US1919441A - Electric signal system : en
  • US1919480A - Translating device : en
  • AT134306B - Process for the production of iron rolls in which the jacket and the core are produced in separate working processes. : de en
  • CA334258A - Friction clutch : en fr
  • DE581533C - Machine for building treads : de en
  • US1919406A - Combined cock and switch device : en
  • US1919523A - Clutch : en
  • US1919591A - Gas burner : en
  • US1919608A - Tail gate elevator : en
  • US1919741A - Lubricated bearing : en
  • US1919392A - Metal door jamb : en
  • US1919788A - Assictpb : en
  • US1919890A - Control system for electric current rectifiers : en
  • US1919816A - Process of forming electric resistance heating elements : en
  • US1919971A - Bookmark : en
  • US1919653A - Hydraulic sand extractor : en
  • US1919893A - Drum mounting for boilers : en
  • DE581485C - Suspension with air damper for vehicles of all kinds, especially motor vehicles : de en
  • DE581487C - Rearview mirror for motor vehicles : de en
  • GB395753A - Improvements in or relating to sorting devices, for rapid sorting of office papers and any small articles : en
  • US1919776A - Two-operator two-hand control : en
  • DE581284C - Chassis for bicycles and motorcycles : de en
  • DE581334C - Process for the direct extraction of iron and steel : de en
  • GB395819A - Improvements in electrically heated vessels, such as kettles and the like : en
  • GB396091A - Improvements relating to illuminated signs : en
  • US1919787A - Carton forming machine : en
  • FR749516A - Advanced connection clip for pressure lubrication : en fr
  • GB395942A - Improvements in and relating to interdependent pulsating electric circuits : en
  • US1919719A - Transmission system for sound carrying currents : en
  • US1919978A - Welding apparatus : en
  • DE581430C - Spinning bobbins : de en
  • DE581375C - Device for conveying a constant amount of material per unit of time : de en
  • FR749709A - Improvements in the manufacture of artificial materials : en fr
  • FR749587A - Plant dryer : en fr
  • US1919683A - Vehicle wheel : en
  • US1920124A - Burner : en
  • US1920149A - Vehicle body for transoporting mixed concrete : en
  • US1919439A - Display stand : en
  • DE518232C - Process for improving fuels and propellants : de en
  • DE581333C - Exchangeable sheet scraper for pneumatic sheet feeding devices : de en
  • GB396417A - Counting or registering device for paper money or similar objects in sheet form : en
  • DE581261C - Carrier for photographic sound recordings : de en
  • DE581541C - Multi-part permanent casting mold for the aluminothermic welding of workpiece ends, for example rails : de en
  • DE581246C - Electric cable : de en
  • AT134270B - Process for the production of spinnable, aqueous solutions of silk fibroin. : de en
  • US1919528A - Method and apparatus for mining double or parted seams : en
  • US1920066A - Air separator : en
  • GB395914A - Improvements in or relating to coke ovens : en
  • DE581351C - Dependent delay device for relay or release : de en
  • US1919541A - Dishwasher : en
  • GB395974A - Rocking tool holder for lathes and the like : en
  • FR749663A - Improvements to saturation processes and apparatus : en fr
  • GB395766A - Improvements relating to metal melting furnaces : en
  • GB395845A - Improvements in or relating to winding devices for the manufacture of boxes, for instance the outer casings of push boxes, capsules and tubes of veneer, paper and the like : en
  • DE581249C - Uninterruptible switching device for the voltage coil of a relay or measuring system : de en
  • US1919784A - Loose leaf binder : en
  • FR749585A - Rescue apparatus for castaways : en fr
  • FR749826A - Locking system for roberval scales : en fr
  • US1919405A - Truss : en
  • US1920049A - Stop-cock with electric heater : en
  • US1919910A - Pneumatic tire and rim construction : en
  • FR749800A - Device for semi-automatic scales and scales : en fr
  • US1919851A - Manufacture of formic acid from formates : en
  • US1919557A - Shielded motor assembly : en
  • GB395846A - Improvements in or relating to multi-cylinder two cycle oil engines : en
  • FR749487A - Metal wheel for agricultural or industrial equipment : en fr
  • US1919201A - Screen for paper stock and the like : en
  • US1919643A - Ultra-violet ray transmitting material : en
  • DE581340C - Core microphone : de en
  • DE581364C - Roller hanger for curtains, curtains or the like. : de en
  • US1920072A - Removable exposure and focusing device for cameras : en
  • GB396092A - A process for the production of nitrogenous and/or phosphatic mixed fertilisers of desired composition by treatment of raw phosphates with nitric acid : en
  • FR749417A - Live animal racing device with electric control : en fr
  • USPP73P - simpson : en
  • GB395944A - Improvements relating to vacuum carpet or like sweepers : en
  • US1919307A - Method and apparatus for volatilizing sulphur : en
  • US1919669A - Hydrocarbon mineral oil : en
  • US1919847A - Centripugal air or gas injector : en
  • US1920090A - Heat treatment for aluminum base alloys : en
  • AT134337B - Carburetor fire extinguisher. : de en
  • AT134361B - Screw-on cap for bottles, containers, etc. like : de en
  • US1919212A - Closure for concrete mixers : en
  • US1919227A - Power plant : en
  • US1919861A - Apparatus for analyzing the gaseous content in liquids : en
  • US1919622A - Ingot mold : en
  • US1919690A - Method of and means for permanently waving hair : en
  • FR749625A - Process for the selective separation of acetylene from mixtures which contain it with other hydrocarbons : en fr
  • FR749644A - Floor executable without formwork and made up of beams and slab pieces placed between these beams : en fr
  • GB395818A - Improvements in and relating to colour sensitized collodion photographic plates : en
  • US1919930A - Control mechanism for motor vehicles : en
  • CA334375A - Burner fuel supply device : en fr
  • DE581248C - Putty-free fastening of electrical cable clamps in bases made of porcelain or similar building materials for installation apparatus : de en
  • DE581586C - Seating and reclining furniture that can be converted into a bed : de en
  • US1919498A - Device for use in mixing printer's ink : en
  • US1919762A - Orthodontic appliance : en
  • GB395904A - Improvements in perpetual calendars : en
  • US1919280A - Receptacle for granular or pulverulent condiments for table use : en
  • AT134210B - Image scanning device for television, image telegraphy or the like. : de en
  • DE581075C - Process for carrying out exothermic catalytic reactions : de en
  • DE581410C - Method and device for loading spinners, in particular spin dryers : de en
  • FR749467A - Prepaid telephone set for local and long distance calls : en fr
  • US1919298A - Disinfectant : en
  • US1919336A - Ophthalmic bridge mounting : en
  • US1919780A - Coupling : en
  • US1920135A - Switch controlling mechanism : en
  • FR749797A - : fr
  • FR749809A - Improvements to melting machines and type lines : en fr
  • DE581486C - Protective cover for the rear seats of vehicles, especially motor vehicles : de en
  • US1919642A - Pose reflecting apparatus : en
  • US1919814A - Electric control system : en
  • US1919878A - Process for manufacturing furfural : en
  • US1919812A - Clamping device : en
  • US1919935A - Fluid filled high tension terminal : en
  • US1919826A - Method of forming threaded bushings : en
  • US1919255A - Automatic timing device : en
  • US1919649A - Stretching machine : en
  • US1919723A - Manufacture of products : en
  • US1919672A - Process for cooling and safeguarding oil cracking apparatus : en
  • US1919974A - Friction brake : en
  • US1919525A - Motor control system : en
  • US1919297A - Vitamin preparations containing lipoid soluble vitamins : en
  • US1919404A - Brake valve device : en
  • CA334407A - Sulphur recovery : en fr
  • US1919678A - Anton yttbkovitch : en
  • FR749488A - Improvements to calibers : en fr
  • FR749717A - Metal wheelbarrow : en fr
  • FR749600A - Self-closing tap for wine barrels : en fr
  • FR749768A - Radiator cover fixing system : en fr
  • FR749845A - Advanced metal molding : en fr
  • DE571181C - Slide rule : de en
  • AT134359B - Elevator control. : de en
  • DE581455C - Loop converter with separate insulating tubes : de en
  • FR749825A - Graphical method for determining the density of coal briquette loadings and their ash content : en fr
  • DE581470C - Magazine speaking machine for optional playing of records : de en
  • FR749818A - Improvements to letters and similar signs for signs : en fr
  • FR749418A - Improvements to two-stroke internal combustion engines, especially those with opposed pistons : en fr
  • FR749601A - Automotive car door lock : en fr
  • AT134288B - Process for the production of gasoline, benzene and other hydrocarbons from tars, tar oils and the like. like : de en
  • DE562116C - Shock absorbers, especially for motor vehicles : de en
  • DK47563C - Machine for Making Wreath Rings. : da en
  • US1919752A - Separation of mixtures by distillation : en
  • DE581226C - Branch device for electrical lines with an insulating plate separating the main and branch lines : de en
  • US1919527A - Trap : en
  • GB395877A - Improvements relating to supports for the roof, sides and floor of mines, tunnels and the like : en
  • GB396436A - Improvements in or relating to wireless receiving apparatus : en
  • US1919216A - Process of ammonia oxidation : en
  • US1920058A - Rubber stamp construction : en
  • US1919537A - Nursery nipple : en
  • US1919853A - Well packer : en
  • FR749726A - Plastic bezel : en fr
  • AT134285B - Methods of combating plant pests. : de en
  • FR749650A - Improvements to saxophone mouthpieces : en fr
  • FR749659A - Independent ignition internal combustion engine running on medium and heavy oil : en fr
  • FR749850A - Instrument used to immobilize the valves of internal combustion engines during the disassembly or reassembly of the keys or repair of the stem : en fr
  • GB395874A - Improvements relating to the control of the volumetric output and discharge pressure of fans, blowers, and pumps, of the centrifugal and propeller types, by modification to the intake conditions : en
  • GB395884A - An electric switch and socket combination with protective arrangement : en
  • GB395979A - Improvements in or relating to producing nickel layers on iron or steel : en
  • FR749505A - Improvements to metal guillotine frames : en fr
  • US1920099A - Combined shade and guide map : en
  • DE581488C - Clothing protection net for ladies bicycles : de en
  • US1919418A - Window : en
  • GB395756A - Improvements in electrically heated hollowware : en
  • US1919983A - Method for producing low loss nonaging silicon steel sheets : en
  • DE581583C - Process for the production of Kuepen dyes and their intermediate products : de en
  • GB396080A - Improvement in hydraulic power transmission and metering device therefor : en
  • DK47567C - Procedure for Making Potash. : da en
  • USD90376S - of chattanooga : en
  • US1919577A - Internal combustion engine cooling system : en
  • US1919763A - Lock and latch : en
  • FR749412A - Dry cell cell improvements : en fr
  • GB396031A - Improvements in dynamo electric machines : en
  • US1919306A - Vacuum condensation system : en
  • US1919995A - Method of forming cores for dynamo-electric machines : en
  • USD90370S - Design fob a combined dresser and mirror : en
  • US1919766A - Method of protecting rubber surfaces : en
  • US1919464A - Method of manufacturing boots or shoes : en
  • US1919611A - Apparatus for automatically regulating the drill pressure in deepboring plants : en
  • US1919977A - Electric valve converting apparatus : en
  • US1919984A - Method of making grid structures : en
  • CA334346A - Food handling apparatus : en fr
  • US1919391A - Top for fruit and vegetable boxes or crates : en
  • AT134241B - Toothpick dispenser. : de en
  • US1919457A - Connecting device for electrical conductors : en
  • US1919596A - Electron emitter for electron discharge devices : en
  • US1919809A - Barrel handling and treating mechanism : en
  • AT134355B - Screw connection for folding boat frame or the like. : de en
  • US1919335A - Vapor generating unit : en
  • AT134264B - Melting tank for impregnation compound or the like. : de en
  • DE581215C - Process for the production of rail sleepers, especially for points : de en
  • FR749636A - Method and device for preventing electrolysis in ship hulls : en fr
  • FR749714A - Cooling of conductors in spark plug housings : en fr
  • FR749719A - Barrel on wheels : en fr
  • CA334277A - Mop holder : en fr
  • CA334400A - Telephone exchange system : en fr
  • DE581435C - Process for the preparation of bile acid compounds of aminonaphtholsulfonic acids : de en
  • AT134336B - Device for hanging up automatic, rigid railway couplings. : de en
  • AT134399B - Device for the photographic recording of vibrations. : de en
  • US1919241A - Distillation of tar : en
  • AT134363B - Liquid heater operated with gas or liquid fuels. : de en
  • US1920133A - Billet feeding and heating apparatus : en
  • US1919322A - Method of and apparatus for glazing ceramic ware : en
  • US1920024A - Integrating mechanism : en
  • DE581426C - Method of protecting copper containers exposed to fire against corrosion : de en
  • US1919631A - Liquid flow controlling device : en
  • AT134291B - Device for the continuous production of edible fat panels u. like : de en
  • AT134314B - Scythe. : de en
  • US1919254A - Die for producing spirally corrugated tubing : en
  • US1919452A - Rubber composition and method of preserving rubber : en
  • US1919681A - Liquid heater : en
  • US1919886A - Process for adding hydrogen halide to acetylene : en
  • US1919691A - Method and apparatus for cracking oil : en
  • DE581244C - Hollow shaft drive for electric traction vehicles : de en
  • FR749678A - Device for the transport of animals to be slaughtered and the suction of their blood during this transport : en fr
  • AT134214B - Electric brake circuit, in particular for lifting machines and rail vehicles. : de en
  • AT134367B - Device for attaching the binding device of straw presses u. Like. On their frame. : de en
  • AU741132A - An improved process for the impregnation of fabric with cellulose regenerated from viscose : en
  • US1919493A - Odometer : en
  • CA334356A - Tomato juice production : en fr
  • DE581537C - Soil cultivation machine with rotating tools : de en
  • CA334398A - Cable forming apparatus : en fr
  • US1919380A - Method of removing articles from packing cases : en
  • AT134372B - Feedback circuit diagram for rectifier systems. : de en
  • US1919252A - Air compressor : en
  • US1919604A - Method of forming composite boxes : en
  • US1919948A - Apparatus for suppressing interference in radio selector systems : en
  • USD90387S - Design fob an emblem holder for radiator caps : en
  • AT134307B - Device for the piece-wise dispensing of cigarettes. : de en
  • US1919446A - Control apparatus : en
  • US1920164A - Roller bit : en
  • CA334338A - Hydrocarbon conversion : en fr
  • CA334412A - Hydrocarbon oil processing : en fr
  • AT134221B - Circuit arrangement for company management subscriber sets. : de en
  • AT134275B - Process for the production of resitols. : de en
  • US1919449A - Governor : en
  • US1920060A - Flexible pocket receptacle : en
  • AT134237B - Device for the production of helically wound filaments for electric light bulbs. : de en
  • US1919786A - Dabbing brush : en
  • US1919999A - Machine for forming and fastening : en
  • US1919873A - Wire glass : en
  • US1920052A - Seat construction : en
  • US1920054A - Life-safety apparatus : en
  • US1920137A - Alkoxyacetic acids : en
  • US1919575A - Plastic mass : en
  • US1919235A - Sprinkler head : en
  • US1919973A - Valve mechanism : en
  • AT134256B - Process and means for avoiding disturbances caused by ferrous water when finishing textile goods. : de en
  • FR749502A - curvilinear element for thermal expansion or contractions in recording, reading, etc. devices. temperatures : en fr
  • USRE18903E - To worcester : en
  • US1919374A - Method and apparatus for forming articles of plastic material : en
  • US1919695A - Receptacle closure : en
  • USD90360S - Design for a beer dispensing bar : en
  • US1919655A - Purification of oil : en
  • AT134279B - Process for the preparation of 1- [3'-oxyphenyl] -2-aminopropanol- (1). : de en
  • AT134224B - Circuit arrangement for company management stations. : de en
  • US1919251A - Frequency division system : en
  • US1919841A - Wire mattress : en
  • DE581220C - Arrangement for regulating the amount of cooling water : de en
  • GB396032A - Process for the simultaneous presentation of sound films in different languages : en
  • CA334291A - Printing machine wiping and polishing mechanism : en fr
  • USD90389S - And nicholas meinhabdt : en
  • GB396018A - Glass spiralling machine : en
  • AT134311B - Method and device for protecting plant crops against and for controlling pests. : de en
  • AT134284B - Process for the production of asphalt, tar u. Like dispersions. : de en
  • US1919514A - Signal control for demand meters : en
  • US1919749A - Pivotally supported wind wing : en
  • US1919895A - Circuit breaker protective system : en
  • US1919370A - Apparatus for packaging candies or the like : en
  • US1919332A - Bore-hole surveying device : en
  • US1920138A - Method of making slide fasteners : en
  • US1919891A - Charging circuit for storage batteries : en
  • US1920006A - Prostatic catheter : en
  • US1919745A - Flexible reamer for cable terminals and the like : en
  • US1920134A - Gear oiling system for multiple cylinder internal combustion engines : en
  • US1919375A - Rubber bearing structure : en
  • FR749512A - Heat insulating coating : en fr
  • FR749674A - Device for moving the brush holder collars of polyphase shunt machines with collector and reversible operation, powered by the rotor : en fr
  • FR749837A - Improvements in fruit pitting machines : en fr
  • GB395963A - Improvements in and relating to locks and latches : en
  • DE581498C - Transformer system for electric traction vehicles with control of the traction motors on the high voltage side : de en
  • CA334281A - Ore processing : en fr
  • CA334260A - Vehicle spring connection : en fr
  • CA334234A - Loom mechanism : en fr
  • AT134243B - Process for obtaining refined, high-percentage magnesium alloys. : de en
  • US1919555A - Radiator cabinet : en
  • US1919587A - Valve for animal feeders : en
  • CA334263A - Garment : en fr
  • DE581345C - Thermostat switch, which is housed in a gas-tight sealed container filled with a light gas, for example hydrogen : de en
  • DE581467C - Device for cleaning ampoules : de en
  • US1920118A - Apparatus for making flowed films and sheets : en
  • AU883832A - Method of obtaining rubber in granular form from dispersions such as latex, or from solutions : en
  • CA334323A - Refractory article : en fr
  • US1919292A - Elastic garment : en
  • CA334377A - Mineral oil processing : en fr
  • FR749550A - Force-limiting device and its applications, in particular to valves and similar devices : en fr
  • FR749620A - Letter scale letter opener : en fr
  • FR749633A - Device for fixing the blades of mechanical razors to their sharpening devices : en fr
  • GB395822A - Improvements in or relating to closures for bottles, jars, and the like : en
  • GB395967A - Improvements in and relating to electric welding : en
  • US1919579A - 2-oxymethylcarboxylic acid-benzimidazole-arsonic acids and process of preparing them : en
  • US1919957A - Check printing and photographing machine : en
  • US1919994A - Coil winding machine : en
  • US1920034A - Controller for electric circuits : en
  • US1919991A - Electroresponsive time element device : en
  • CA334312A - Circuit breaker control system : en fr
  • GB395770A - Improvements in or relating to cinematographic projectors : en
  • AT134299B - Cigarette lighter and dispenser. : de en
  • US1919773A - Indophenols and sulphur dyestuffs therefrom : en
  • US1919804A - Transmission of sound and images : en
  • CA334406A - Oil burner : en fr
  • CA334403A - Cork and fibre paper product : en fr
  • US1919286A - Internal combustion engine : en
  • DE581360C - Process for influencing the burning process of coal and other materials, especially those of dust and gas form and oil : de en
  • AT134216B - Method and device for facilitating the starting of mercury vapor rectifiers. : de en
  • AT134232B - Motorized hammer. : de en
  • US1919721A - Preparation of bromates : en
  • US1920078A - Motor vehicle brake : en
  • US1919924A - Wheel : en
  • FR749475A - Reinforced cardboard box for fruits and early vegetables : en fr
  • DE581491C - Electric igniter with multiple effects : de en
  • FR749780A - animal feeder bowl : en fr
  • CA334347A - Metal laminating process : en fr
  • US1919339A - Tank for corn pickers : en
  • US1920085A - Machiete fob : en
  • US1920101A - Burial vault : en
  • AT134269B - Process for the production of pure carbonic acid. : de en
  • AU1016332A - Improvements in directional air delivery ducts or directional outlet nozzles : en
  • FR749815A - Locking device, in particular for lane change commands : en fr
  • GB396421A - Improvements in and relating to gas igniting devices : en
  • US1919870A - Transmission gear : en
  • US1919352A - Saw teeth : en
  • US1919471A - Mop : en
  • US1919506A - Water heater : en
  • US1919720A - Etine : en
  • US1919850A - Emil luscher : en
  • US1919906A - Stabilized radioreceiver : en
  • USD90382S - Eugene schwarz : en
  • US1919189A - Closure for radiators, gasoline tanks, and the like : en
  • US1919717A - Rock drill : en
  • US1919598A - Method and arrangement for diminishing noise in vacuum tubes : en
  • US1919234A - Mixing valve : en
  • US1920028A - Bracket construction : en
  • AT134378B - Transportable machine for the optional playback of picture, sound or picture sound recordings. : de en
  • AT129294B - Process for protecting magnesium and magnesium alloys against attack by heating baths made from molten salt. : de en
  • CA334366A - Knitting machine : en fr
  • CA334376A - Oil distillation : en fr
  • US1919444A - Fluid pressure brake : en
  • DE581525C - Process for the amplification of the smallest voltages by means of electrode tubes with a photoelectric cathode excited by monochrome light : de en
  • CA334261A - Coke-oven : en fr
  • FR749404A - Switching device for the rear light of motor vehicles : en fr
  • US1919709A - Cap for the breather pipes of internal combustion engines : en
  • AT134268B - Process for generating insoluble azo dyes on fiber. : de en
  • AU922632A - Process for the manufacture of rolled and pressed wheel discs, wheel spokes or the like, in which the part of the disc lying between the hub and the rim including the thickened portion near the rim ,is undulated in an axial direction and the preparation of the die for carrying out the said process : en
  • DE581287C - Holders for double-sash windows, doors, etc. like. in partially open position : de en
  • DE581339C - Circuit arrangement for the connection of several different frequency ranges preferring roaring capacitors : de en
  • GB395973A - Improvements in pasteurizing apparatus : en
  • GB396381A - Improvements in the manufacture of bricks or blocks : en
  • CA334336A - Strength testing machine : en fr
  • US1919946A - Slide fastener : en
  • AT134282B - Process for processing coffee, cocoa, mate. : de en
  • US1919345A - Switch : en
  • US1919941A - Fastener setting device : en
  • US1919543A - Means for effecting the bloodless removal of diseased tissue : en
  • AT134330B - Cutting tools for meat grinders. : de en
  • US1920061A - Bathing belt : en
  • CA334340A - Window : en fr
  • US1920150A - Direct-current voltage transformation apparatus : en
  • US1919507A - Sprinkler fire extinguishing system : en
  • US1919949A - Electric heating system : en
  • DE581258C - citrus press : de en
  • AT134340B - Chassis for large electrically powered vehicles with electric motors mounted transversely to the direction of travel. : de en
  • AU814732A - An improved handle or grip for water bags : en
  • DK47573C - Etanker Converter for Conversion of Single- or Multi-Phase AC Energy to DC Energy with Random Characteristics. : da en
  • US1919820A - Adjustable chair : en
  • FR749844A - Engine : en fr
  • US1919412A - Furnace : en
  • GB396380A - Process for treating cobalt-tungsten alloys : en
  • CA10052S - Roofing or siding : en
  • US1919347A - Compressed metal joint and method of making the same : en
  • US1919605A - Dispensing container : en
  • DE581500C - Contact device, especially for retractable switches : de en
  • FR749573A - Compressor installation for refrigeration devices : en fr
  • FR749721A - Improvements to machines for threading tubes, bolts or other similar parts : en fr
  • US1919865A - Dish scraper : en
  • US1920156A - Antenna for short and ultra-short waves : en
  • AT134351B - Device for monitoring crossing points on railway tracks, road crossings and the like. like : de en
  • US1919700A - Water closet : en
  • AT134235B - Can opener. : de en
  • CA334384A - Electric fuel pump : en fr
  • US1919517A - Process for providing a transparent coating on glass surfaces : en
  • DE581319C - Double needle bar line : de en
  • DE579752C - Gas burners, especially for blast furnace heaters : de en
  • DE581363C - Storage container for amalgams that can be inserted in the housing of mixing devices : de en
  • US1919961A - Propeller and flywheel : en
  • US1919242A - Cooling system for firearms : en
  • US1919396A - Machine for pulling plants : en
  • CA334264A - Hydraulic pump-turbine : en fr
  • US1919789A - Assiignok : en
  • US1919533A - Brake band : en
  • US1920000A - Spring shackle : en
  • US1919233A - Valve : en
  • US1919377A - Grass trimmer : en
  • AT134341B - Deck chairs for boats, in particular for folding boats. : de en
  • US1919495A - Conveyer : en
  • US1919612A - Yeast product and method of making the same : en
  • AT134309B - Pocket lighter. : de en
  • CA334253A - Servo brake mechanism : en fr
  • US1919433A - Photographic copying apparatus : en
  • US1919499A - Dual and single rim wheel : en
  • US1919592A - Process for manufacturing ar-tetrahydronaphthylamine compounds : en
  • US1920002A - Attachment for vacuum celaners : en
  • US1920153A - Call box register circuit : en
  • US1919909A - Sharpening unit : en
  • US1920041A - Electrical network : en
  • US1919567A - Filter bed cleaning device for sewage clarification tanks : en
  • US1919996A - Acceleration responsive device for controlling electric motor-driven vehicles : en
  • CA334310A - Refrigerating apparatus : en fr
  • AT134206B - Arrangement for controlling the switching process in telephone systems. : de en
  • CA334330A - Brake shoe mould : en fr
  • DE581276C - Device on strollers for climbing stairs : de en
  • US1919368A - Tire patch : en
  • GB396024A - Improvements in refrigerating machines : en
  • US1919401A - Fluid pressure brake : en
  • US1920076A - Machine for truing tile : en
  • US1920142A - Power plant : en
  • US1919885A - Printing telegraph receiving apparatus having case grouping of characters : en
  • US1919956A - Railway track brake : en
  • USD90392S - Michelangelo sttsi : en
  • US1919880A - Packing and display container : en
  • AT134202B - Crude oil burner. : de en
  • AU969232A - Stove door hinges : en
  • AT134328B - Frozen vending machine. : de en
  • CA334385A - One revolution clutch : en fr
  • US1919340A - Mechanically expansible element : en
  • US1919532A - Insulating covering : en
  • US1920152A - Antipilferage seal : en
  • AT134265B - Method and device for the production of doughs suitable for bread making from grain and other cereals. : de en
  • CA334349A - Sink bracket : en fr
  • US1920086A - Propeller : en
  • US1919952A - Binding post : en
  • GB396063A - Improvements in paper and methods of manufacturing the same : en
  • DE581247C - Sealing body for insertion glands for electrical lines in junction boxes, switch housings and the like. like : de en
  • CA334343A - Photoprinting machine : en fr
  • DE581257C - Device for the wet treatment of thread laps : de en
  • US1919249A - Ple gaining machine : en
  • DE581263C - Mobile beet cleaner with a rotating rust-like drum : de en
  • USD90366S - Design fob a shbine : en
  • DE581239C - Process for the production of benzanthronaldehyde : de en
  • DE581509C - Slice stacking device for slicing machines : de en
  • CA334352A - Ammonium sulphate production : en fr
  • US1919825A - Treating cracked distillates : en
  • FR749771A - Salt shaker : en fr
  • DE581411C - Production of monosodium phosphate : de en
  • DE530173C - Pistons, especially for internal combustion engines : de en
  • DE564151C - Process for the production of a stocking in one operation on a flat weft knitting machine : de en
  • DE581513C - Self-acting locking : de en
  • USD90384S - Textile fabric or similar article : en
  • DE581161C - Process for the production of water-soluble dyes of the anthraquinone series : de en
  • US1919361A - Apparatus for forming plastic strip material : en
  • FR749738A - On-load adjustment method for current transformers : en fr
  • FR749785A - Manufacturing process for footwear with a stamped sole : en fr
  • DE581300C - Bearing lubrication for centrifugal machines : de en
  • US1919694A - Machine for the manufacture of laminated fibrous pulleys : en
  • US1919849A - Orchestral instrument : en
  • US1919980A - Control of electric circuits : en
  • US1920136A - Ash tray : en
  • AT134348B - Railway safety system. : de en
  • DE581255C - Process for tanning or partial tanning of bare animals : de en
  • FR749687A - Dielectric hook for insulating support for luminescent tubes or other devices : en fr
  • GB396044A - A machine for making cream like compositions from butter or substitute by addition of milk : en
  • DE581310C - Process for the production of aluminum and halogen : de en
  • DE581471C - Device for illuminating microscopic objects in incident light : de en
  • FR749732A - Process for the purification and enrichment of fluorite : en fr
  • DE581325C - Plaettmachine : de en
  • FR749465A - Purification and thermal recovery installation, more particularly for the treatment of soapy, oily or other water : en fr
  • FR749540A - Elastic articulation device : en fr
  • US1920001A - Safety device : en
  • CA334409A - Electric starting motor : en fr
  • GB396004A - Improvements in fumigants : en
  • FR749626A - Copying apparatus for typewriters : en fr
  • GB396025A - Improvements in airplane fusilages : en
  • FR749655A - Double-piece woven velor machine : en fr
  • GB395961A - Electric trap for animals : en
  • GB396045A - Improvements in typographical line-casting machines : en
  • GB395806A - Improvements relating to calculating apparatus for solving vector triangles : en
  • FR749536A - Improvements in the manufacture of cellulose or cellulosic materials : en fr
  • FR749539A - Device applicable to billiards in order to increase the interest of the game : en fr
  • GB395809A - Improvements in pocket lighters : en
  • FR749634A - Automatic circuit breaker device applicable to low voltage electrical distributions : en fr
  • DK47571C - Bone iron. : da en
  • DE581274C - Elevation control without fixed fin for aircraft : de en
  • DE581382C - Air-cooled cylinder head for internal combustion engines, lined with a hood : de en
  • DE581335C - Device for securing the reverse run of internal combustion engines with a liquid reservoir in the exhaust : de en
  • FR749658A - Method and device for regulating the blackening of the sound impression and of the image to be projected in sound film recordings : en fr
  • GB395924A - Means for feeding superposed plates of different metals to rolling mills : en
  • SE77901C1 - : en
  • CA334322A - Composite refractory article : en fr
  • US1919350A - Oil well cleaning device : en
  • US1919484A - Shock insulator : en
  • US1919595A - Projection machine : en
  • CA334326A - Thread rolling die : en fr
  • CA334358A - Casting machine : en fr
  • US1919613A - Folding table : en
  • GB395911A - Improvements in or relating to the manufacture of reinforced concrete floors : en
  • CA334284A - Basket fastener : en fr
  • GB395892A - Improvements in pneumatic cushions : en
  • GB395881A - Improvements relating to clutch control mechanism for motor vehicles : en
  • US1919496A - Fuel pump : en
  • USD90373S - Charles miller : en
  • CA334289A - Valve seat tool : en fr
  • GB395837A - Improvements in and relating to spectacles and eyeglasses and the like : en
  • FR749752A - Advanced leaf spring : en fr
  • FR749822A - Advertising or decorative signs : en fr
  • DE581386C - Shaking device for sieves : de en
  • FR749431A - Device for supplying hot air to a fireplace : en fr
  • US1919735A - Apparatus for making animated pictures : en
  • GB395925A - Improvements in or relating to packing materials : en
  • FR749706A - Machine for the dry treatment of vines and other plants : en fr
  • US1919199A - Conveyer for cylindrical objects : en
  • AT134316B - Machine with rotating knives for cutting tobacco leaves. : de en
  • DE581230C - Method for producing a bandage encompassing the ankle on the flat weft knitting machine : de en
  • DE581534C - Telescope with image-inverting prism system : de en
  • DK47574C - Swim. : da en
  • US1919503A - Coat belt : en
  • US1919645A - Form tie : en
  • CA334288A - Shock absorber : en fr
  • US1919224A - Antiglare shield for headlights : en
  • AT134257B - Process for the preparation of a non-flammable or hardly flammable nitrocellulose solution. : de en
  • CA334265A - Lawn edge mower : en fr
  • US1919207A - Automotive vehicle switching mechanism : en
  • US1919386A - Machine for striping : en
  • US1919738A - Lathe : en
  • US1920037A - Differential safety device for transformers and the like : en
  • DK47578C - Combustion engine. : da en
  • DE581251C - Starting circuit of AC commutator motors that can be regulated by brush shifting : de en
  • DE580940C - Differential regulator, especially for electrically driven machines : de en
  • US1919283A - Ink fountain divider and pad : en
  • US1919730A - Porous metal and metal oxide : en
  • US1919287A - Apparatus for forming sheet metal forms : en
  • US1919936A - os wilmington : en
  • US1919355A - Rotary internal combustion engine : en
  • GB395866A - Improved apparatus for use in the withering of tea : en
  • AT134276B - Process and device for the gasification of finely divided, pulverulent fuels. : de en
  • US1919354A - Expansion joint for tiled bathtub recesses : en
  • FR749772A - New process for making field coils for large synchronous machines : en fr
  • GB395779A - Improvements in and relating to mercury vapour rectifiers : en
  • US1919333A - Hand bag : en
  • US1919912A - Container : en
  • US1920077A - Rotary brush : en
  • DE581222C - Arrangement for the storage and centering of rollers, especially sliding platforms and turntables : de en
  • DE581332C - Automatic sheet feeder : de en
  • DE581518C - Process for the production of solutions of proteins and their breakdown products : de en
  • GB395962A - Improvements in refrigerators cooled by brine-circulation systems : en
  • GB395786A - Improvements in safety razors : en
  • DE581295C - Process for spraying liquid fogging agents from fog spraying devices : de en
  • FR749647A - Heat recovery device for central heating boilers and other heating devices : en fr
  • US1919346A - Vapor pressure bomb : en
  • GB395958A - Improvement in rib fabric, method of and mechanism for knitting the same : en
  • US1919917A - Geophysical exploration method : en
  • FR749842A - Rangefinder giving distances without sight or comparison base and able to perform all topography operations : en fr
  • DE581234C - Self-tie : de en
  • FR749580A - Jet device for dispensing liquids or powders : en fr
  • CA334379A - Oil distillation : en fr
  • FR749639A - Variable pressure hydraulic blower : en fr
  • US1920110A - Rubber stamp and method of making the same : en
  • DE581296C - Tray filling device : de en
  • FR749415A - Improvements to aluminum-based alloys : en fr
  • GB395893A - Improved process for the simultaneous production, from methane, of hydrogen, lamp black and light, liquid hydrocarbons : en
  • CA334280A - Pack saddle : en fr
  • CA334301A - Power tool : en fr
  • FR749849A - Newspaper holder : en fr
  • FR749754A - Aircraft tire improvements : en fr
  • FR749819A - Method and apparatus for the manufacture of plastics : en fr
  • DE581357C - Water glass putty containing rubber milk : de en
  • GB395751A - Improvements in cardboard boxes : en
  • GB395805A - Improvements in and relating to stands for motor cycles : en
  • US1919432A - Housing of electrical switches or distribution boxes : en
  • US1919843A - Paper machine wire and method of making same : en
  • US1919921A - Continuous indicating viscosity gauge : en
  • GB395969A - Improvements in or relating to stuffing boxes : en
  • FR749471A - Plastic sticks for teaching writing, numbering and imitation drawing in schools : en fr
  • DE581543C - Schoepfwerk with vertically arranged pump : de en
  • DE581416C - Low electrical conductivity liquid for electrical equipment : de en
  • FR749835A - Absorbent filter for pipes and similar smokers' articles : en fr
  • FR749810A - Two-stroke rotary diesel engine with variable chambers : en fr
  • FR749405A - Improvements to heel protectors for stockings or socks : en fr
  • FR749528A - Device for clamping rolled meats : en fr
  • FR749533A - Steel Foam Cleaning Pad : en fr
  • DE581574C - Process for the production of centrifugally cast hollow bodies from asbestos cement : de en
  • IE12583L - Floors : en
  • FR749608A - Improvements to objects in aluminum or aluminum-based alloys : en fr
  • FR749660A - Removable roller trolleys, running on rails, particularly applicable to curtains and drapes : en fr
  • GB395852A - Improvements in starting devices for synchronous alternating electric current motors : en
  • DE581279C - Main swing arm for support roller sets in track belt vehicles : de en
  • DE581318C - Device for manual and remote control of traffic signals : de en
  • DE581228C - Method and device for increasing the load-bearing capacity of Roentgen pipes : de en
  • DE581439C - Process for the preparation of anthraquinone derivatives : de en
  • FR749514A - Device for curling hair : en fr
  • GB396033A - Improvements in or relating to driving devices for conveying troughs for stacked goods and attached to oblique vibrating members : en
  • DK47568C - Suction fan. : da en
  • FR749619A - Sliced sausage cutting machine : en fr
  • GB395896A - Improvements relating to the contacts of electrical make and break apparatus : en
  • DE581187C - Shift lock for the driven pulley of a pair of pulleys on sewing machines : de en
  • DE581308C - By changing electricity, e.g. B. AC, heated glow cathode amplifier tubes : de en
  • US1919835A - Reading device for a book : en
  • US1919317A - Telephone system : en
  • US1919462A - Multicolor printing press : en
  • FR749445A - Road train : en fr
  • FR749759A - Device for the purification of drinking water : en fr
  • CA334266A - Electric opener for cans : en fr
  • CA334249A - Body lighting device : en fr
  • AT134278B - Process for cleaning, deodorising, hydrogenating and reducing gaseous and liquid hydrocarbon compounds. : de en
  • USD90390S - Walter speck : en
  • US1919785A - Holder for cosmetics : en
  • US1919990A - Electric switch : en
  • US1920102A - Roller bearing and method of making the same : en
  • AT134259B - Process for welding on the negative pole or with alternating current. : de en
  • US1919800A - Process of cutting blocks of stone : en
  • CA334311A - Magnetic alloy : en fr
  • CA334273A - Scum preventing float : en fr
  • US1919958A - Platen for printing and addressing machines : en
  • US1919630A - Clinical thermometer : en
  • DE581280C - Connection of the front wheels with the longitudinal center support forming the frame, especially for motor vehicles : de en
  • FR749470A - Artillery Wheel Improvements : en fr
  • CA334364A - Sawing machine : en fr
  • US1919632A - Sound radiator : en
  • US1919239A - Knurled piston ring arbor : en
  • US1919349A - Sales cabinet for tire chains : en
  • USD90388S - Design fob : en
  • DE569166C - Furnace grate : de en
  • US1919290A - Milling machine : en
  • US1919364A - Method of and means for scoring motion pictures : en
  • US1919932A - Gaseous electric discharge device : en
  • AT134354B - Automatic trailer coupling for motor vehicles. : de en
  • US1919398A - Copper oxide rectifier : en
  • US1919421A - Snap-acting valve device : en
  • DE579737C - Blade for impellers of pumps, turbines and turbo compressors : de en
  • DE581293C - Device for adjusting and temporarily fastening the toe blocks on snowshoes using fastening knives : de en
  • GB395849A - Self fixing fastener for stair carpets and the like : en
  • US1919553A - Detachable blade drag bit : en
  • US1919923A - Leer : en
  • US1919453A - Automatic refusing unit : en
  • CA334250A - Mop : en fr
  • US1920014A - Multiple diaphragm pump : en
  • US1919589A - Azo dyestuff insoluble in water : en
  • CA334374A - Spark plug : en fr
  • CA334237A - Electrolytic sheet metal manufacture : en fr
  • CA334238A - Piston ring turning apparatus : en fr
  • DE581350C - Method of making wireless electrical resistors : de en
  • DE581444C - Rotatable grinding piece for pantograph bracket : de en
  • US1919385A - Circuit breaker : en
  • US1919615A - Grinding machine : en
  • US1919664A - Process for treating acid sludges : en
  • US1919929A - Apparatus for testing brakes : en
  • DE581585C - Jam pendulum at the rear of a traveling grate : de en
  • GB395908A - Improved rubber mixture for insulation purposes, especially for the insulation of marine communication cables : en
  • US1919559A - Electric bread toaster : en
  • DE581429C - Control device for road traffic signal systems : de en
  • CA334331A - Binding device : en fr
  • US1919751A - Wedge for form ties : en
  • US1919914A - Protective system for electric circuits : en
  • US1919647A - Automatic safety plunger : en
  • US1920021A - End expander for structural toy rods : en
  • DE581507C - Process for making alloys containing copper and tin hot-pressable : de en
  • US1919542A - Brake : en
  • US1919656A - Combined hood top and radiator shell for automobiles and the like : en
  • US1919830A - Display-sheet-supporting structure : en
  • FR749624A - Tracking devices for t. s. f. : en fr
  • US1919571A - Massage device : en
  • US1919829A - Two-cycle internal combustion engine : en
  • US1920008A - of wilmington : en
  • US1919342A - Production of sulphur : en
  • US1919373A - Stapling machine : en
  • US1919750A - Doorlock : en
  • US1919548A - Gas choke for plunger lift devices : en
  • DE581469C - Rubble felting machine : de en
  • DE581450C - Protection circuit for synchronous machines : de en
  • DE581565C - Method of playing back sound films : de en
  • FR749565A - Method and device for cooling steam intended for apparatus for heating milk and similar liquids : en fr
  • FR749729A - Further training in stamped metal cans : en fr
  • FR749691A - Improvements applied to the manufacture and installation of parquet floors : en fr
  • FR749834A - Force amplifying apparatus for controlling indicating, recording, regulating or similar devices : en fr
  • AT134324B - Pocket lighter with housing parts that can be slid into one another. : de en
  • US1919202A - Rolling mill : en
  • US1919668A - Coupler operating mechanism : en
  • US1919810A - Railway traffic controlling apparatus : en
  • FR749662A - Improvements to shock absorbers, steering stabilizers and similar devices for mechanically propelled road vehicles : en fr
  • US1919848A - Device for opening bulbs closed by welding and their application to fire extinguishers : en
  • DE581366C - Winch : de en
  • DE581594C - Device for the continuous automatic dosing and mixing of liquids in certain proportions : de en
  • AT134289B - Device for the production of threads from natural or artificial dispersions of rubber or the like. : de en
  • AT134209B - Device for switching off multi-phase lines. : de en
  • CA334365A - Lock : en fr
  • US1919572A - Internal combustion engine : en
  • US1919823A - Portable crane : en
  • US1919198A - Container for golf balls and tees : en
  • US1919684A - Pipe finishing method and apparatus : en
  • US1919686A - Machine for rolling tubular products : en
  • CA334410A - Non-reusable coupling : en fr
  • CA334304A - Door lock : en fr
  • CA10058S - Core or bobbin for cinematograph film stock : en
  • DE580964C - Circuit arrangement for automatic and semi-automatic telephone systems with bypass dialers : de en
  • US1920013A - Beverage water heater : en
  • AT134384B - Support frame for pianos, grand pianos, etc. like : de en
  • FR749477A - Improvement in the heating device of fuel appliances using heavy or medium-heavy hydrocarbons : en fr
  • CA334321A - Cast refractory article : en fr
  • FR749421A - Improvements in mathematical instruments : en fr
  • AT134342B - Shock absorber mounts for vehicles, in particular for motor vehicles. : de en
  • US1919827A - Method of embossing leather as applied to backs of loose leaf binders : en
  • US1920030A - Circuit controller : en
  • GB395955A - Improvements in socks for boots and shoes : en
  • FR749541A - Wide base pile molded into the ground : en fr
  • FR749812A - Coupling for controlling lane changes and signals : en fr
  • DE581330C - Process for the production of non-coloring thio derivatives of phenols : de en
  • US1919438A - Plate for circuit breakers : en
  • AT134305B - Process for the simultaneous production of one or more castings by centrifugal casting. : de en
  • FR749628A - Grid frame, filter press and more specifically must filter, special construction and assembly mode : en fr
  • DE581549C - Stenter frame : de en
  • FR749805A - Rice husking machine : en fr
  • FR749716A - Rubber vulcanization process : en fr
  • FR749737A - Method of frequency change by means of electric vapor or ionized gas valves : en fr
  • GB395841A - Improvements in floor-polishing and washing apparatus : en
  • FR749592A - Auxiliary jackets for foundations : en fr
  • FR749459A - Tilting device for automobile headlights and other uses : en fr
  • GB395872A - Improvements in or relating to electric motor control systems : en
  • FR749741A - Process for making unbreakable doll heads or other similar articles : en fr
  • US1919673A - Photographic relief : en
  • FR749829A - Regulating device for all heating and electric lighting devices : en fr
  • GB395987A - Improvements in or relating to heel treads for boots and shoes : en
  • FR749527A - Device for the operation of converter devices working as rectifiers or as DC-AC converters : en fr
  • FR749755A - Aircraft fuselage improvements : en fr
  • DE581365C - Container for powdery masses : de en
  • FR749679A - Device for opening (unwinding) folded, folded and rolled up fabric edges : en fr
  • FR749713A - Magnetic alloy : en fr
  • FR749783A - Endless track conveyor device for passenger transport and other applications : en fr
  • FR749813A - Movable toy figure : en fr
  • US1920035A - Cutter bit and chuck : en
  • FR749699A - Ring slider for ring spinners and twists : en fr
  • GB395897A - Improvements in apparatus for straining wood pulp and the like : en
  • GB395954A - Improved process and apparatus for winding freshly spun artificial silk on spinning bobbins and the like : en
  • GB395996A - An improved jar adapted for the packing of salted herrings : en
  • DE581506C - Shatterproof glass : de en
  • DE581558C - Process for producing a nitrogen-rich humus fertilizer : de en
  • DE581275C - Airplane with a freely rotating jack screw : de en
  • FR749447A - Device for fixing paper on drawing boards : en fr
  • AT134390B - Binder. : de en
  • FR749617A - gas heat exchanger for absorption refrigeration machines, with auxiliary gas for pressure compensation : en fr
  • GB396052A - Improvements in and relating to electric current converting apparatus : en
  • US1920087A - Lace attachment for flat knitting machines : en
  • US1919937A - Means for securing a metallic bridge to nonmetallic lens rims : en
  • DE581344C - Arrangement for interrupting large electrical switching capacities : de en
  • US1919266A - Door : en
  • US1920120A - Method of manufacturing molded mottled articles : en
  • CA334372A - Gas admixture apparatus : en fr
  • FR749578A - Auxiliary clutch device for motor cars : en fr
  • FR749782A - Low-loader trailer for transporting market equipment and similar applications : en fr
  • CA334404A - Anti-glare device : en fr
  • US1919323A - Saw frame : en
  • FR749847A - Improvements to gear change devices : en fr
  • US1919546A - Method and apparatus for testing internal diameter of tubes : en
  • GB395999A - Improvements in or relating to closures for non-refillable bottles and like containers : en
  • FR749432A - Bed : en fr
  • USPP72P - Pink rose : en
  • AT134301B - Electric rectifier arrangement. : de en
  • US1920071A - Life preserver : en
  • US1919253A - Method for destructively distilling carbonaceous fuels : en
  • DE581278C - Multi-part caterpillar guide frame for caterpillar vehicles : de en
  • DE581535C - microscope : de en
  • AT134321B - Method and device for the production of bodies from light metal by means of centrifugal casting. : de en
  • CA334335A - Engine lubricating system : en fr
  • DE568900C - Method and device for irradiating viscous or viscous extracts of animal or vegetable origin by means of ultraviolet radiation : de en
  • DE581569C - Device for tilting the car body, in particular of trucks : de en
  • FR749464A - Mechanical rocket : en fr
  • GB395760A - Improvements in or relating to the roasting of plumbiferous sulphide ores : en
  • CA334240A - Incubator : en fr
  • AU830532A - Process forthe manufacture of readily soluble derivatives ofthe pyridine series : en
  • US1919796A - Mechanical vibrating element : en
  • US1919474A - Reverse brake : en
  • US1919962A - Conditioning of cellulose fiber for nitration : en
  • US1919263A - Rectifier : en
  • US1919367A - Sash guide : en
  • US1919488A - Internal combustion engine : en
  • US1919782A - Fan attachment for sewing machines : en
  • US1920033A - Controller for electric circuits : en
  • US1919513A - Focusing means for photographic cameras and projectors : en
  • US1919260A - Road scraper : en
  • US1919951A - Snap fastener installation : en
  • DE581219C - Cooling device for cooling milk u. Like. To a temperature that is a few degrees Celsius above zero : de en
  • FR749577A - Bottle capping device and machine for its installation : en fr
  • GB395798A - Improvements in or relating to ganged electric condenser structures : en
  • US1919308A - Purification of alkali metal hydroxide liquors : en
  • US1919768A - Silent chain : en
  • DE581523C - Inverter system which converts high-voltage direct current into alternating current by means of grid-controlled vapor or gas discharge vessels, especially in self-excitation circuits : de en
  • DE581567C - Process for the production of a nutrient from cocoa, sugar and water : de en
  • CA334334A - Autographic register : en fr
  • AT134304B - Process for the simultaneous production of two or more castings by centrifugal casting. : de en
  • US1919927A - Welder's shield : en
  • AT134366B - Reflector lamp with adjustable electric light bulb in the reflector neck. : de en
  • US1919904A - Fuel valve : en
  • US1919945A - Burner for blow torches and the like : en
  • US1919379A - Method of producing beryllium-aluminium alloy : en
  • AT134263B - Process for the production of welding electrodes. : de en
  • CA334378A - Method of freeing oil from sulphur dioxide : en fr
  • US1919783A - Corn harvester : en
  • US1919813A - Rug hook : en
  • USD90381S - schwarz : en
  • AT134323B - Ski. : de en
  • US1919761A - Production of alkaline earth metal cyanamides : en
  • CA334286A - Typewriter margin regulator : en fr
  • CA334271A - Vaporizer : en fr
  • CA334306A - Relay : en fr
  • US1919376A - Reversible pump turbine : en
  • US1919899A - Rotary cloth cutting and severing machine : en
  • US1920143A - Explosion turbine plant : en
  • US1919384A - Tire-building apparatus : en
  • US1919501A - Container : en
  • US1920032A - Circuit controller : en
  • CA334328A - Brake shoe mould : en fr
  • US1919497A - Engine : en
  • US1919867A - Device and method for tightening wire : en
  • AT134296B - Wood gas generator. : de en
  • DE581216C - Utilization of nitric acid from solutions containing these and volatile acids or their salts : de en
  • US1919898A - Portable kitchen : en
  • US1919272A - Electromagnetically operated track switch for toy railroads : en
  • US1920163A - Distillation of tar : en
  • US1919603A - Baby carriage hood : en
  • DE581285C - Movement device for windows sliding in vertical guides, especially body windows : de en
  • FR749710A - Double-acting internal combustion engine : en fr
  • US1919245A - Sprinkler : en
  • US1919443A - Door control equipment : en
  • AT134233B - Odor trap with a dip tube opening into a divided housing closed at the bottom. : de en
  • AT134353B - Circuit arrangement for railway double signals. : de en
  • DE581457C - Device for automatic heat regulation of electrically heated devices : de en
  • GB395929A - Silencer for internal combustion engines : en
  • DE581311C - Compensation for lead-calcium alloys : de en
  • FR749807A - Fixed blower with water circulation for cleaning tube bundles in combustion chambers : en fr
  • GB396048A - Improvements in or relating to photographic film packs : en
  • FR749701A - polishing element for sanding machine : en fr
  • FR749836A - Device for positioning transferred figures optically : en fr
  • US1919519A - Brake : en
  • US1920070A - Wall spacer for concrete forms : en
  • DE581020C - Internal combustion engine with a charge compressor, especially for aircraft : de en
  • DE581052C - Doll press for producing carbon electrodes with protruding carbon stick : de en
  • CA334395A - Alternating current motor : en fr
  • FR749497A - Improvements in the manufacture of tensile springs and product obtained : en fr
  • GB396029A - Improvements in or relating to carburettors for heavy liquid fuels : en
  • FR749700A - Combination electric device for welding and battery charging : en fr
  • FR749715A - Electrical insulation for metal wires, specially indicated for heating applications, and consisting of insulation beads threaded onto the conductor : en fr
  • GB395856A - Improvements in or relating to means for starting internal combustion engines : en
  • FR749426A - Window moving device : en fr
  • DE581478C - Hollow shaft : de en
  • US1920067A - The cardel company, inc. : en
  • AU828232A - Gearless agricultural chipper : en
  • US1919191A - Bomb sight and pilot director : en
  • CA334316A - Shade roller : en fr
  • FR749472A - Loud speaker : en fr
  • GB396397A - Improvements in and relating to suspension clamps for electric conductors or cables : en
  • CA334252A - Cow tail holder : en fr
  • US1919422A - Fluid pressure brake : en
  • US1920125A - Process for the recovery and purification of lubricating oils from mineral oils : en
  • DE581480C - Clamping device for machine tools : de en
  • GB395998A - An improved washer and a method of and a machine for manufacturing same : en
  • GB396376A - Improvements in or relating to centrifugal clutches and like mechanism : en
  • US1919330A - Temperature regulation system : en
  • US1919531A - Brake : en
  • DE581254C - Arm anode for metal vapor glass rectifier high voltage : de en
  • AT134251B - Process for the production of hardened objects from nitridable iron or steel alloys. : de en
  • DE581397C - Tilt protection for mobile, erectable and extendable fire brigade turntable ladders : de en
  • GB396020A - Improvements in or relating to door arrangements more particularly for aircraft : en
  • US1919628A - Dilution detector for antifreeze solutions : en
  • US1919903A - Hand truck : en
  • US1920132A - Spring connection : en
  • US1919304A - Recovery of calcium hypochlorite : en
  • US1919858A - Method of determining and recording oxygen content of liquid or gases : en
  • DE581443C - Electric storage locomotive : de en
  • US1919985A - Cathode ray oscillograph sweep circuit : en
  • US1919670A - Vehicle spring suspension : en
  • DE581281C - Control valve of a vacuum auxiliary power brake for motor vehicles : de en
  • US1919226A - Paper feeding mechanism : en
  • US1919316A - Fire extinguisher : en
  • US1919468A - Tong : en
  • US1919724A - Apparatus for mixing concrete : en
  • US1920053A - Process of making copper hydroxide : en
  • AT134391B - Sound recorder and player. : de en
  • DK47570C - Sealing strip for Windows and Doors. : da en
  • DE581417C - Damping device for the cylinder piston when actuating electrical switches by compressed air drive : de en
  • GB396412A - Improvements in the manufacture of azo dyestuffs and in the colouration of textile materials : en
  • US1920139A - Rubber vulcanization mold : en
  • US1919505A - Roller bit : en
  • US1919570A - Xfiltration : en
  • US1919353A - Coupling device : en
  • AT134201B - Cups. : de en
  • CA334391A - Rotary engine : en fr
  • AT134281B - Process for the preparation of thio derivatives of phenols. : de en
  • CA334297A - Ornamental surface covering : en fr
  • FR749648A - Braking mechanism, in particular for aircraft landing wheels : en fr
  • FR749801A - Alternating current control or energy transfer circuits : en fr
  • US1919620A - Monospar airplane : en
  • USD90379S - Glass jab : en
  • DE581368C - Cut-to-length saw with a fixed work table and a circular saw that can be moved over it : de en
  • GB395799A - Improvements in or relating to the construction of electron discharge tube used for the recording of sound : en
  • DE581125C - Circuit arrangement for local long-distance line selectors for mediating calls in the local network and over the long-distance exchange : de en
  • FR749816A - Machine for classifying bulbs and other relatively light objects according to their weight : en fr
  • AT134334B - Method and device for scoring rolls. : de en
  • US1919950A - Dental water heater : en
  • US1920160A - Coating composition containing a siccative : en
  • FR749667A - Improvements to electrodes for electric welding : en fr
  • GB395873A - Improvements in and relating to valve rectifiers : en
  • GB395887A - Improvements in and relating to rectifier installations : en
  • AT134389B - Staple strips. : de en
  • CA334302A - Tubular support : en fr
  • CA334357A - Yarn manufacture : en fr
  • SE77852C1 - : sv
  • FR749811A - Lane change control with needle control : en fr
  • DE581422C - Electricity meter or the like with insulating housing and metal suspension eyelets : de en
  • US1919209A - Switching mechanism for automotive vehicles : en
  • GB395781A - Improvements in current collecting devices for electric railways : en
  • FR749767A - Improvements to methods and pointing devices : en fr
  • DE581388C - Process for cold smoking of fish : de en
  • FR749439A - Electric arc welding machines : en fr
  • FR749778A - Improvements to spring motors, for talking machines or similar applications : en fr
  • US1919211A - Alloy steel : en
  • US1919712A - Closure for collapsible tubes : en
  • US1920029A - Circuit controller : en
  • US1919190A - Condenser : en
  • US1919920A - Sound record : en
  • US1919419A - Door : en
  • US1919534A - Molding apparatus : en
  • US1919560A - Waffle iron assembly : en
  • US1919702A - Flush door : en
  • DE581217C - Production of active fuller's earth : de en
  • US1919357A - Play ball and method of making the same : en
  • GB395922A - Improvements in combined insulators and holders for suspended electric lamps : en
  • DE581260C - Compass head joint : de en
  • DE581008C - Conveyor device for foundries and similar businesses : de en
  • DE581405C - Device for sports and exercise games : de en
  • DE581337C - Heart of Vignol or similar rails : de en
  • DE581343C - Circuit breaker : de en
  • GB395816A - Device for the production of endless bands of gelatine, cellulose derivatives and the like : en
  • US1919760A - Marine reverse gear : en
  • US1919943A - Process of making ammonium chloride : en
  • FR749656A - Closure for high pressure boilers : en fr
  • FR749745A - Method and device for closing paper bags : en fr
  • FR749762A - New ring and more especially new alliance and its manufacturing process : en fr
  • GB395795A - Improvements in and relating to flex drums and contacts for electrical instruments of a dental and surgical character and to trays for such instruments : en
  • US1919425A - Process for dissolving titaniferous materials in acids : en
  • US1919774A - Variable speed alternating current motor : en
  • US1919312A - Paper drier : en
  • US1919277A - Internal combustion engine : en
  • US1919902A - Intercell connecter : en
  • FR749712A - Process for the production of welded pipes, in particular welded pipes of high-value metal alloys : en fr
  • FR749746A - Improvements in telemetry methods and apparatus : en fr
  • US1919718A - Method and means for adhering rubber to metal : en
  • US1919837A - Conveyer : en
  • US1920126A - Filtration : en
  • GB395834A - Improvements in and relating to the manufacture of chocolate : en
  • DE568331C - Children's shooting or bang toy with a capsule-shaped part to accommodate the bang insert : de en
  • DE580819C - Procedure for determining the best distance between sound devices in a group for the maximum volume : de en
  • GB395831A - Improvements in or relating to the construction of sectional buildings : en
  • DE581347C - Device for a time limit on the triggering of electrical processes : de en
  • DE581381C - Injection carburetor : de en
  • DE580082C - Process and device for removing gases from cable ducts and cable wells : de en
  • DE581379C - Collection container for rifles with coin slot : de en
  • GB395993A - Improvements in instruments for measuring mechanical forces : en
  • GB395941A - Moulds or casting supports for the manufacture of articles from microporous rubber : en
  • US1919288A - Method and apparatus for truing a grinding wheel : en
  • US1919689A - Sludge digestion tank : en
  • US1919928A - Coil winding machine : en
  • DE581286C - Multi-part sliding shutter to close door, window openings or the like. : de en
  • FR749731A - Improvements to processes for the purification of used lubricating oils or to the purification of new oils : en fr
  • US1919846A - Tempering bath : en
  • FR749621A - Nuts and Bolts Improvements : en fr
  • FR749690A - Hollow slabs, ribbed slabs and composite slabs : en fr
  • GB395842A - Improvements in or relating to electrolytic condensers : en
  • US1919883A - Stoppered tubular storage battery element : en
  • US1920062A - Liquid depth regulator for baths, tanks, and the like : en
  • FR749789A - Method and apparatus for the manufacture of artificial filaments and the like : en fr
  • FR749742A - Process for preparing a vitamin food product : en fr
  • FR749803A - Clutch control mechanism : en fr
  • GB396027A - Improvements in the thermal compression of gaseous sulphur dioxide : en
  • DE581313C - Belt connector made of metal band with teeth : de en
  • DK47569C - Coin testing device for vending machines. : da en
  • US1919363A - Apparatus for embossing plastic articles : en
  • US1919616A - Portable apparatus for producing fire-extinguishing foam : en
  • GB395985A - Improvements in or relating to tele-cinematograph and like transmitters : en
  • FR749840A - Electric clock : en fr
  • US1919811A - Thermometer case : en
  • FR749725A - Method of spraying liquids by means of an electromagnetic gas-fluid pump : en fr
  • GB395910A - Improvements in or relating to door fastenings : en
  • DE581584C - Method and device for the decomposition of liquid mixtures, in particular those which contain hydrocarbon oils, acidic resin and acid : de en
  • US1919184A - Brake operating mechanism : en
  • US1919372A - Porous molded product and process of manufacturing the same : en
  • US1919552A - Attaching grommets to metal plates : en
  • FR749611A - Process for casting blast furnace slag : en fr
  • FR749675A - Dust extractor : en fr
  • FR749419A - Improvement in needle valves : en fr
  • US1919580A - Hermann wagnee : en
  • US1920095A - Citrus fruit treating machine : en
  • GB395960A - Improvements in or relating to the manufacture of rolled steel rod : en
  • IE12356L - Match packages. : en
  • US1919459A - Work guide for sewing machines : en
  • DE581387C - Sewing machine for sewing the parts of moccasin-like shoes together : de en
  • US1919500A - Apparatus for controlling the flow of refrigerant in refrigerating apparatus : en
  • US1919561A - Concave mirror : en
  • US1920100A - Synthetic resin and method of making the same : en
  • US1919289A - Method and machine for use in paper making industry : en
  • US1919430A - Double check valve device : en
  • US1919634A - Floatable roof for tanks : en
  • US1919635A - Camera attachment : en
  • US1920089A - Telephone system : en
  • GB396005A - Improvements relating to heat transferring devices for use in air heating apparatus : en
  • GB395948A - Improvements in or relating to appliances for starting siphons : en
  • FR749708A - Advanced spark plug for internal combustion or combustion engines : en fr
  • GB395932A - Ophthalmic mounting and method of making same : en
  • FR749743A - Device for remote signal transmission : en fr
  • US1919610A - Pocket umbrella : en
  • DE568994C - Arrangement for determining or compensating for the difference in position of two spatially separated shafts : de en
  • DE581459C - Electromagnet with pole shoe attachments, which absorb lines of force perpendicular to the direction of movement : de en
  • DE581524C - Changeable electrical capacitor, the rotor shaft of which can be removed from the stator frame without dismantling the same and is provided with a lateral bearing flange : de en
  • US1919734A - Conduit : en
  • US1919801A - Machine for making building blocks : en
  • GB395775A - Process for the preparation of un-vulcanised india-rubber in crumb or powder form : en
  • DE581473C - Ellipsoid-like lighting mirror for cinema projection : de en
  • FR749808A - Device for energizing and tripping trolleys by disconnecting switch for high currents automatically activated by the socket of an electric locomotive : en fr
  • IE12247L - Vaccines : en
  • FR749403A - Carpet and its manufacturing process : en fr
  • FR749453A - Improvements to processes for stabilizing substances intended to make the biscuits and products obtained crisp : en fr
  • FR749574A - Universal stretch fabric : en fr
  • DE581547C - Sausage filling, compartment and turning device : de en
  • FR749774A - Improvements to measuring devices : en fr
  • GB396074A - Improvements in toasting forks : en
  • FR749462A - Motor vehicle upgrades : en fr
  • FR749757A - Arrangement of marine boilers with superheaters : en fr
  • GB395813A - Improvements in automatic gas controllers and electric timeswitches : en
  • GB396447A - Improvements in and relating to written or printed text records for projection synchronously with talking picture reproduction : en
  • FR749597A - Advanced centrifugal compressor : en fr
  • DE581571C - Process for the manufacture of footwear : de en
  • DK47566C - Procedure for the production of wine and similar alcoholic products. : da en
  • DE581420C - Device for switching off the direct current load by a switch in the direct current circuit in an arrangement of metal rectifier cells, several of which are connected to a transformer or voltage divider : de en
  • DE581011C - Dishwasher : de en
  • DE581241C - Tabs for the printing plates of address printing machines : de en
  • DE581315C - Frame for carousel lathes : de en
  • FR749654A - Choke cover : en fr
  • US1919238A - Sheet feeder : en
  • US1919639A - Tile machinery : en
  • AT134397B - Appointment calendar. : de en
  • CA334242A - Fine coal separating method and apparatus : en fr
  • AT134298B - Pyrophoric pocket lighter. : de en
  • DE581233C - Magnetic separator : de en
  • US1919232A - Valve : en
  • US1920025A - Tippable and portable mixing apparatus : en
  • AT134227B - Chair made of continuously bent tubular steel or the like. : de en
  • AT134322B - Device for climbing on ropes. : de en
  • CA334268A - Fruit basket cover fastener : en fr
  • GB395936A - Self-tightening railway permanent way : en
  • US1919606A - Liquid cooling installation : en
  • US1919428A - Bottle crate : en
  • GB395859A - Improvements in, or relating to, chequer bricks for blast furnace stoves, or the regenerator chambers of furnaces, and coke ovens : en
  • GB395767A - Improvements in or relating to machines adapted for the coating of soles for boots and shoes : en
  • FR749449A - Improvements to bathing suits : en fr
  • FR749722A - A process for bonding, or even waterproofing, paper and cardboard, as well as objects made of paper, cardboard or pulp : en fr
  • GB395830A - Improvements in or relating to valves suitable for controlling the delivery of liquids : en
  • FR749406A - Anti-slip device for motor vehicles : en fr
  • DE581245C - Method for the interference-free recording of received signals from wireless telegraphy : de en
  • US1919187A - Brake hook-up : en
  • US1919544A - Internal combustion engine : en
  • FR749598A - Escapement mechanism for watch movements, in particular for photographic shutters : en fr
  • FR749407A - Spinning or twisting winder : en fr
  • DE581437C - Process for the preparation of oxynaphthotriazoles : de en
  • DE581551C - Auxiliary device on auxiliary devices for saw frames, cut-off saws, etc. with hydraulic or similar grinding pressure control : de en
  • FR749792A - Improvements in artificial materials and their manufacture : en fr
  • DE526436C - Venting device, especially for pig stalls : de en
  • FR749503A - Extendable chuck : en fr
  • FR749545A - Liquid charge switch for multi-tap transformers : en fr
  • US1920045A - Signal light switch : en
  • GB395797A - Improvements in or relating to machines for winding material of ribbon like form into rolls : en
  • FR749499A - Removable chairs : en fr
  • FR749827A - Quick-adjust wrench for gripping nuts of various sizes : en fr
  • GB395857A - Improved pull-off fitting for curved overhead electric current conducting lines : en
  • US1919243A - Rotary sprinkler : en
  • DE581225C - Process for the production of rubber-insulated ladders : de en
  • DE581438C - Process for the preparation of Arylaminonaphtholcarbonsäuren : de en
  • GB395840A - Improvements in or relating to wireless signalling : en
  • GB395879A - Improvements relating to pit props : en
  • GB396035A - Improvements in or relating to friction clutches particularly for motor vehicles : en
  • DE581415C - Fluid switch with conductive switching fluid : de en
  • FR749457A - Combination mower broom : en fr
  • AT134287B - Softeners for plastic masses made from cellulose derivatives. : de en
  • DE581418C - Overcurrent switch with toggle lever contact device : de en
  • US1920074A - Container : en
  • IE12824L - Worm screw press : en
  • DE581356C - Vacuum discharge vessel for generating very hard X-rays or very fast moving electrons : de en
  • FR749603A - Device for the production of molded glass : en fr
  • FR749613A - Automatic regulator for hydro-pneumatic shock absorbers : en fr
  • FR749718A - Perfected laundry room : en fr
  • CA334292A - Copper silicon zinc alloy : en fr
  • CA334411A - Steel billet casting method and apparatus : en fr
  • DE581462C - Time switch : de en
  • DE581272C - Yellow filter : de en
  • DE581590C - Process for the extraction of light metals : de en
  • DE581476C - Liquid-controlled injection nozzle : de en
  • AT134318B - Peeling machine. : de en
  • CA334276A - Tire : en fr
  • FR749673A - : fr
  • US1919708A - Jar cap wrench : en
  • CA334236A - Metallic alloy : en fr
  • US1919722A - Toltos hymah : en
  • US1919911A - Pneumatic tire and rim construction : en
  • US1919236A - Windshield cleaner : en
  • US1919356A - Hose : en
  • US1919771A - Press : en
  • CA334345A - Radiator core : en fr
  • US1920094A - Method and apparatus for generating and using high pressure : en
  • US1919576A - Heating system : en
  • US1919599A - Method for removing entrained liquid from gases and vapors : en
  • US1919666A - Caster and the like : en
  • US1920129A - Fiber storage and preservation : en
  • US1919461A - Method of and means for taking soil tests : en
  • CA334305A - Protective relay : en fr
  • US1919680A - Foot rest : en
  • US1920048A - Combined typhoonoscope and barometer : en
  • US1920128A - Locking attachment : en
  • GB395945A - A machine for use in cutting low lying plants such as field grown peas : en
  • GB396419A - A device for the accommodation of measured quantities of cotton wool : en
  • CA334371A - Flask : en fr
  • FR749466A - Improvements in the assembly of rotary blades of lawn mowers or other similar machines : en fr
  • FR749623A - Improvements to fully shielded electrical machines : en fr
  • FR749669A - Improvements made to the means for heating the coolant of machines such as, in particular, explosion engines : en fr
  • US1919434A - Gauging machine : en
  • DE581464C - laundry detergent : de en
  • US1919907A - Package opener : en
  • DE581393C - Film conveyor device for cinematographic recording or projection apparatus with continuously moving film tape : de en
  • DE581445C - Scissor pantograph with swinging upper bow : de en
  • DK47565C - Automatic firearm. : da en
  • US1919871A - Process of resolving emulsions : en
  • US1919451A - Lubricating device : en
  • GB395947A - Improved process of preparing cellulose solutions, and process of producing artificial threads, films, bands and such like artificial products from these solutions : en
  • GB395935A - Improvements in and relating to match boxes : en
  • GB395988A - A solid adjustable fire screen : en
  • US1920064A - Cleaning device for golf balls or the like : en
  • DE581321C - Bundle briquette : de en
  • FR749551A - : fr
  • GB395971A - Improvements in or relating to processes of stabilising shortening and the improved shortening product resulting therefrom : en
  • DE581453C - Single-phase asynchronous motor with auxiliary phase winding for driving compressors : de en
  • GB396420A - Improvements in and relating to melting pots : en
  • DE581448C - Vacuum switch : de en
  • DK47580C - Automatic firearm. : da en
  • FR749606A - Profiled iron beam : en fr
  • GB395870A - Tool retainers for power hammers, hammer drills or like tools : en
  • FR749413A - Process for the vulcanization of rubber : en fr
  • GB395773A - Improvements relating to dairy machinery for pasteurization : en
  • DE581250C - Arrangement for switching off the individual controlled discharge paths, preferably grid-controlled vapor or gas discharge vessels, from self-controlling inverters or converters in a predetermined sequence during the starting process : de en
  • AT134380B - Process for the assessment of model dresses and for the production of the associated dress cuts. : de en
  • GB395863A - Improvements in or relating to knitting machines : en
  • GB396047A - Improvements in or relating to the manufacture of moulded inlaid linoleum : en
  • US1919188A - Actuated figure : en
  • GB395858A - Improvements in or relating to tins, canisters and like metal containers : en
  • US1919963A - Coin packaging device : en
  • DE581566C - Device for switching off the switching device for the arithmetic unit on typewriters : de en
  • GB395923A - Improvements in or relating to mattresses, pillows, cushions and the like : en
  • FR749416A - Hand saw : en fr
  • FR749631A - Toy rotated by pulling on a rope : en fr
  • FR749734A - Process for treating artificial or natural fibers : en fr
  • GB395808A - Improvements in apparatus for determining the correct exposure in photographic cameras : en
  • GB395855A - Improved manufacture of pottery ware : en