• US2307064A - Ore dressing : en
  • US2307149A - Platform construction : en
  • US2307219A - Tying mechanism : en
  • US2307618A - Envelope opening machine : en
  • US2307181A - Casing closure : en
  • US2307703A - Benzal ethyl cyanoacetate as a pestcontrol agent : en
  • US2307310A - Cotton thinning device : en
  • US2307504A - Temperature responsive instrument : en
  • US2307562A - Cooler for hot chocolate coated goods like candies, etc. : en
  • USD134723S - Design for a combined toothbrush : en
  • US2307359A - Tooth unit for dredge buckets : en
  • US2307492A - Adjustable beam saddle : en
  • US2307311A - Refrigerating machine : en
  • DE729978C - Measuring arrangement for the continuous control of the temperature of transformer windings during operation : de en
  • FR877968A - Electrical assembly for permanent regulation : en fr
  • US2307257A - Apparatus for handling vegetables or the like : en
  • USD134757S - Design for a work suit : en
  • US2307044A - Liquid dispenser : en
  • US2307607A - Stocking, knitted fabric, and their method of production : en
  • FR877928A - Removable door closer : en fr
  • US2307371A - Molding process : en
  • CA409819A - Toilet seat cover forming machine : en fr
  • US2307465A - Frying apparatus : en
  • US2307015A - Pneumatic gun : en
  • US2307305A - Adjustable support : en
  • US2307178A - Process for preparation of stiffening material : en
  • US2307400A - Hammer mill : en
  • CA409829A - Pen nib : en fr
  • CA409745A - Electric heating unit manufacture : en fr
  • DE730189C - Process for the preparation of water-insoluble monoazo dyes : de en
  • DE730224C - Articulated connection for transport belts u. like : de en
  • FR877999A - Method and device for distributing the products to be agglomerated, intended in particular to increase the efficiency of agglomeration installations by suction : en fr
  • DE730034C - Process for cleaning iron-containing diatomite with a high content of organic substances : de en
  • DE730234C - Soil improvement : de en
  • FR877915A - Powerline transmission systems : en fr
  • FR878008A - Rolling curtain : en fr
  • GB550388A - Improvements in or relating to finishing textile materials : en
  • CA409849A - Optical objective : en fr
  • FR877822A - Inkwell-calendar : en fr
  • FR878006A - Mixer : en fr
  • FR878026A - Hanging system for binders or binders in archives : en fr
  • CA409722A - Galvanometer : en fr
  • CA409754A - Dicyandiamide condensation product : en fr
  • US2307057A - Transparent film : en
  • USD134767S - Design for a dress : en
  • FR877826A - Flashing light advertising device : en fr
  • FR877991A - Process for the desensitization of silver halide layers, sensitive to light : en fr
  • US2307282A - Machine tool : en
  • US2307560A - Hinge for folding partitions : en
  • DE730093C - Jaw crusher : de en
  • US2307484A - Thermoresponsive circuit controller : en
  • US2307549A - Furnace door lift : en
  • US2307677A - Dental apparatus : en
  • FR877833A - Loom : en fr
  • GB550317A - Improvements in the preparation of substances promoting proliferation of animal and vegetable cells : en
  • CA409803A - Hangrod mounting : en fr
  • US2307145A - Handle assembly : en
  • US2307269A - Flashing and jacket for vent pipes : en
  • US2307116A - Dividing machine of the record controlled type : en
  • US2307500A - Protective relay system : en
  • USD134726S - Design for a workbench : en
  • USD134735S - Design fob a shower head or similar article : en
  • US2307281A - Aperturing punch : en
  • US2307510A - Machine for packing buns and the like in cartons : en
  • DE730076C - Production of finely powdered coffee charcoal : de en
  • US2307355A - Applying fins to radiator tubes : en
  • US2307552A - Controlled hydrohalogenation of unsaturated organic compounds : en
  • US2307156A - Carpet sweeper : en
  • DE730081C - Elevator with horizontal conveyance and only one pull rope for elevation and longitudinal travel in one direction : de en
  • US2307521A - Call transmitter : en
  • US2307673A - Combined radio condenser and station selector : en
  • US2307138A - Metallic chair frame : en
  • DE730293C - Process for the processing of pulp waste liquors containing nitric acid : de en
  • DE729515C - Accounting machine, especially typewriter equipped with a totalizer : de en
  • DE729998C - Belt tensioning device for engaging and disengaging angular drives : de en
  • FR877906A - Shoe : en fr
  • FR877964A - Mixing device for continuous working pasta presses : en fr
  • US2307136A - Device for operating upon shoes : en
  • US2307250A - Packaging : en
  • US2307433A - Typing-projection system : en
  • US2307527A - Electrical induction apparatus : en
  • DE729869C - Cylinder sieve for grains : de en
  • FR878029A - Process for producing reserves : en fr
  • DE730110C - Method and device for the production of endless metal bars : de en
  • GB550325A - Improvements in or relating to the treatment of smokeless powder : en
  • DE729946C - Device for protecting the windings of an electrical apparatus, in particular a transformer, against inadmissible heating : de en
  • DE730200C - Balcony beams : de en
  • FR877939A - Oscillating bracket for bicycle light dynamo : en fr
  • DE730072C - Facility for space heating : de en
  • US2307444A - Railway track circuit apparatus : en
  • DE730172C - Process for the production of a beer-like, low-alcohol or non-alcoholic fermentation drink : de en
  • DE730006C - Device for the automatic control of an aircraft : de en
  • GB550467A - Improvements in or relating to tire bead reinforcements and method of making same : en
  • USD134728S - Design fob a book match packet : en
  • USD134746S - Design for a dress : en
  • DE730220C - Toy rail vehicles, in particular vehicles for electric toy trains : de en
  • US2307237A - Telegraph signal distortion measuring apparatus and system : en
  • US2307666A - Bobbin-cleaning apparatus for use on automatic weft-replenishing bobbin-changing looms : en
  • DE685745C - Mold lining : de en
  • DE729934C - Process for the production of nitrogenous feed : de en
  • US2307622A - Windmill : en
  • US2307651A - Method of finishing gears having teeth differing in circular pitch in different segments thereof : en
  • US2307169A - Machine for use in shoemaking : en
  • FR877867A - Improvements to continuous type chemical or electro-chemical treatment devices for bulk parts : en fr
  • FR878046A - drainers for paper machines : en fr
  • US2307463A - Telephone calling dial device : en
  • US2307069A - Typographical composing, casting, and distributing machine : en
  • US2307129A - Shockproof gear : en
  • US2307291A - Dispenser : en
  • US2307401A - Shoe and outsole therefor : en
  • DE730265C - Process for the diffusion of metals into the surface of objects made of magnesium or magnesium alloys : de en
  • DE730140C - Arrangement for countercompounding a Leonard generator : de en
  • US2307200A - Swivel assembly for fish lures : en
  • US2307189A - X-ray contrast composition : en
  • US2307391A - Art of producing magnetic material : en
  • DE729843C - Method for sheathing a cable with aluminum by bending a heated aluminum tape around the cable : de en
  • DE729936C - Wooden propeller with glued metal reinforcement : de en
  • US2307223A - Filling valve : en
  • GB550421A - An improved process for treating edible animal flesh for the production of food products : en
  • FR877857A - Improvements in methods and apparatus for activating surface excitation, resulting from centrifugal force, used for the suspension in air of an ultra-dispersed fluid or other dry powder products : en fr
  • US2307664A - Thread guide : en
  • DE729851C - Process for the preparation of 5, 5-diphenyl-2, 4-dioxooxazolidine : de en
  • GB550337A - Improvements in rotary moulding machines : en
  • FR877962A - Large flow hydraulic turbine with vertical axis : en fr
  • US2307404A - Decorating apparatus : en
  • DE730203C - Slot-controlled Fweiakt internal combustion engine : de en
  • US2307288A - Process for making electrical resistors : en
  • FR877987A - Bi-metallic thermometer with needle mechanism separate from the heat sensitive element and with a stop device controlling the retention of the sensitive element : en fr
  • DE730294C - Annealing furnace closed on one side with endless conveyor device : de en
  • US2307101A - Propeller mechanism : en
  • US2307205A - Magnet system : en
  • US2307720A - Collapsible box : en
  • DE730073C - Device for eddy current heating of a ferromagnetic body by one or more magnetic field generators attached to the body : de en
  • US2307172A - Combination truck and passenger vehicle : en
  • FR877853A - Automatic gas pressure regulators : en fr
  • DE730138C - Contact arrangement for automatic switch : de en
  • FR877926A - Process for the modification of surfaces of polyamides, polyurethanes and other high linear polymers : en fr
  • US2307694A - Quenching device : en
  • DE729898C - Deep drill for running boring bars : de en
  • DE730082C - Device for attaching the cover plate to lifting magnets : de en
  • US2307098A - Screening machine : en
  • US2307636A - Heat responsive device : en
  • GB550322A - Improvements in the manufacture of piston and other rings : en
  • US2307689A - Hydrocarbon conversion : en
  • FR877933A - Mobile cables for telecommunications, with multiple conductors, screens, with direct direct coating such as conductibilized rubber : en fr
  • US2307393A - Fitting for stratosphere suits : en
  • CA409714A - Die casting machine : en fr
  • DE730005C - Respiratory protection filters or carbon dioxide absorption cartridges, especially for breathing apparatus in which layers of materials with unequal vapor pressures are arranged : de en
  • US2307557A - Apparatus for elevating fluids in wells : en
  • DE729901C - Jewelry : de en
  • FR878049A - Removable pulley with cable clamp, in particular for lifting wrecks : en fr
  • GB550368A - Improvements relating to automatic-feed weighing apparatus for granular, pulverulent and like fluent solid materials : en
  • CA409835A - Cyclopropane production : en fr
  • USD134736S - Design for a container for paste : en
  • US2307290A - Sheet metal container : en
  • DE730260C - Device for producing an uninterrupted curve : de en
  • FR877954A - Printing and finishing process for fabrics and threads : en fr
  • DK60474C - Fully or semi-automatic Remote Signaling Control Panel. : da en
  • FR877960A - Gluing press for shoes : en fr
  • DE729875C - Soldering alloy : de en
  • DE730316C - Design of the feed and discharge device for straightening machines : de en
  • US2307147A - Automatic target : en
  • US2307381A - Helicopter propeller : en
  • US2307565A - Glassware blowing mechanism : en
  • DE730099C - Baskuel clasp : de en
  • CA409858A - Telephone system : en fr
  • US2307529A - Bean grader and spreader : en
  • US2307599A - Electrical induction apparatus : en
  • US2307688A - Combination sucker rod guide and paraffin scraper : en
  • US2307674A - Door lock : en
  • DE722007C - Electric incandescent lamp with gas filling and a substance that evaporates during the heating of the luminous body as well as a vacuum jacket surrounding the luminous body : de en
  • DE729942C - Automatic motive air regulator : de en
  • DK60487C - Device at Combination Lock. : da en
  • US2307644A - Hydraulic pressure lock and booster : en
  • DE730127C - Arrangement for generating a guide beam : de en
  • US2307197A - Coupler for toy railroad vehicles : en
  • FR878005A - Process for decomposing tar by fractional distillation : en fr
  • CA409861A - Coupler for tractor-semi-trailer combinations : en fr
  • DE729969C - Electric counter with armature return spring, especially conversation counter : de en
  • USD134740S - Design for a schedule recording board : en
  • US2307283A - Air conditioning and circulating apparatus : en
  • US2307413A - Apparatus for charging billets and the like : en
  • DE730298C - Method for measuring small ultra-high frequency voltages : de en
  • DE729939C - Device for filling containers : de en
  • US2307295A - Drapery heading hook : en
  • US2307325A - Nonrefillable bottle : en
  • DE730267C - Control device for automatic turning bars : de en
  • DE729902C - Burner for hardening camshafts : de en
  • FR877855A - Shoe system with flexible soles of wood or other rigid material and method of manufacture thereof : en fr
  • GB550460A - Improvements in or relating to means for locking lathe collets or the like : en
  • DE730225C - Ignition device : de en
  • GB550444A - Improvements relating to electrodes for voltaic cells : en
  • DE730222C - Device for closing filled bags : de en
  • US2307140A - Coin operated device : en
  • US2307450A - Vending machine : en
  • US2307641A - Polymerization of rosin and rosin esters : en
  • GB550389A - Improvements relating to the conversion of hydrocarbons : en
  • IE16465L - Submarine cable signalling : en
  • AU116332B2 - Improvements in and connected with vehicles provided with lifting and carrying means : en
  • US2307648A - Container for face powder : en
  • USD134771S - Design fok a dress : en
  • FR877861A - Fireplace grid : en fr
  • FR877871A - Lock nut and lock nut : en fr
  • US2307206A - Spraying device : en
  • US2307680A - Tap structure : en
  • US2307100A - Record controlled machine : en
  • US2307238A - Machine for and method of grinding gears, splines, and similar forms : en
  • DE730296C - Arrangement for the elimination of disturbances during the beat reception of wireless telegraphy : de en
  • US2307396A - Sliding table top construction : en
  • DE730270C - Double control valve for steering brakes : de en
  • US2307093A - Refrigerator cabinet : en
  • USD134720S - Besign foe a brush : en
  • DE688450C - Pan for galvanizing workpieces using the lead zinc process : de en
  • DE729940C - Sintered grate with cover : de en
  • GB550403A - Improvements in and relating to valves : en
  • DE730258C - Mittens for cleaning and cleaning purposes : de en
  • FR877914A - Process for fixing a metal part on a hard glass pane in several layers, in particular for glazing in cockpits on board airplanes : en fr
  • US2307440A - Sealing ring : en
  • DE730269C - Tension lock for cladding panels, especially for engine hoods on aircraft : de en
  • US2307306A - Track sander : en
  • US2307332A - Reinforced ceramic material : en
  • US2307228A - Interlocked vertical broaching machine : en
  • DE729918C - Method for applying winding cores with non-circular winding windows on coils or windings of transformers, chokes or the like. : de en
  • DE730289C - Process for the manufacture of weed killers : de en
  • FR877873A - Use of an aluminum alloy for castings such as wall lights and the like : en fr
  • FR877963A - Automatic regulator for supplying compressed air to compressed air motors : en fr
  • GR10015B - HOT METHOD METHOD. : el en
  • US2307114A - Machine for shaping plastic materials : en
  • US2307349A - Golf club box : en
  • USRE22242E - Brake construction : en
  • FR877945A - Improvements to soft rim wheels and applications to bicycle wheels and the like : en fr
  • US2307279A - Floating fork for bicycles : en
  • DE730061C - Antenna circuit inductively coupled to the input circuit of a radio receiver : de en
  • FR877872A - Improvements to nails articles : en fr
  • FR877912A - Improvements to frequency modulation measurement devices : en fr
  • US2307220A - Drinking valve : en
  • US2307498A - Apparatus for separating liquids of different specific gravities : en
  • DE730244C - Amplifier with gain control and negative feedback : de en
  • FR877899A - Manufacturing process of wood fiber boards : en fr
  • FR877948A - Process for the preparation of practically pure aluminum compounds starting from impure solutions of aluminum salts obtained by decomposition, with acids, of aluminous materials : en fr
  • FR877998A - Ship propulsion apparatus : en fr
  • GB550427A - Improvements in or relating to filter casings : en
  • US2307568A - Mirror case construction : en
  • FR877924A - Photographic magnifier : en fr
  • DE730204C - Shaft with screwed on nut as torque transferring connection : de en
  • US2307348A - Fastening device : en
  • DE729630C - Device for checking the delivery rate per working cycle of fuel delivery pumps : de en
  • DE730308C - Device for filling furnace chambers to generate water gas : de en
  • DE729769C - Process for purifying hydrocarbons : de en
  • DE729964C - Monitoring device for steam trap : de en
  • FR877950A - Bollard crossing : en fr
  • US2307084A - Antihemorrhagic compound : en
  • US2307112A - Clutch mechanism : en
  • US2307294A - Coffee roaster control : en
  • CA409730A - Garment pocket ironing device : en fr
  • CA409827A - Container closure : en fr
  • DE730121C - Bounce ring for typewriter lever : de en
  • GB550372A - Improvements in or relating to electric power generating plant and vehicles incorporating such plant : en
  • GB550381A - Centrifugal speed regulator : en
  • GB550413A - Improvements in or relating to printing presses : en
  • GB550438A - Improvements in flying or other controls for aircraft, ships or other vehicles : en
  • DE730256C - Process to avoid the formation of excessively long fibers when cutting strands of artificial threads : de en
  • FR877913A - Blast furnace : en fr
  • GB550393A - Blade rim for steam or gas turbines : en
  • FR877830A - Process for extinguishing carbonized products in industrial furnace installations, and device for carrying out this process : en fr
  • FR877887A - Compressed air supercharger : en fr
  • US2307137A - Process for bleaching wood pulp : en
  • US2307421A - Silver catalyst and method of making the same : en
  • US2307468A - Illuminated portable writing board : en
  • DE729993C - Torque meter : de en
  • GB550334A - Improvements in or relating to electric storage batteries : en
  • US2307141A - Combined swing and glide apparatus : en
  • US2307437A - Control device for steam locomotives : en
  • FR877854A - Manufacturing process for new tetracyclic compounds : en fr
  • US2307032A - Orthopedic footwear : en
  • CA409757A - Reaction product : en fr
  • USD134730S - Design for a wallet : en
  • GB550341A - Improvements in or relating to aircraft propeller blades : en
  • GB550319A - Improvements relating to electric flash welding machines : en
  • US2307060A - Liquid dispensing apparatus : en
  • DE725619C - Mass balancing of unbalanced shafts : de en
  • DE730211C - Device for the pretreatment of grain, maize, legumes o. The like. For the purpose of mixing processing : de en
  • DE730170C - Switching device for the gearbox of vehicles : de en
  • DE730062C - Switching device for portable electrical devices, e.g. Cigar lighter : de en
  • GB550440A - Improvements in and relating to washing machines : en
  • GB550402A - Improvements in the preparation of clays : en
  • FR878011A - Chassis for extreme bissels of three-axle bogies for surrail vehicles : en fr
  • GB550370A - Improvements in or relating to mechanism for supplying yarn and thread to the needles of knitting machines : en
  • GB550350A - Improvements in electrical signalling systems utilising trains of impulses for control purposes : en
  • DE729859C - Device for lubricating control spools of reciprocating compressors : de en
  • DE730309C - Roest process for bast fiber plants : de en
  • FR877911A - Welded Socket Pipe Junctions with Weld Relief : en fr
  • GB550366A - Improvements in and relating to electrodes for electric discharge lamps and the like : en
  • US2307202A - Projecting kaleidoscope device : en
  • US2307328A - Swivel fitting : en
  • US2307546A - Valve and valve seat : en
  • DE729276C - Transfer power regulator for AC machines : de en
  • USD134752S - Design fob a dress : en
  • US2307319A - Testing circuit : en
  • US2307382A - Tool rotating mechanism : en
  • FR877983A - Process for the carbonization into fragments of any size of divided and carbonized agglomerates : en fr
  • CA409777A - Metal vapour discharge tube : en fr
  • DE730245C - Switch rod that can be joined together from several parts with several swiveling switch arms for connecting telephones to overhead lines : de en
  • FR877807A - Anti-theft lock for cycles, mopeds or motorcycles : en fr
  • FR877902A - Spring device : en fr
  • US2307481A - Motor control system : en
  • FR877844A - heat exchanger : en fr
  • GB550465A - A draught and noise excluder and door buffer : en
  • DE729890C - Process for the conversion of hydrocarbons : de en
  • DE730133C - Procedure for measuring small degrees of coupling : de en
  • DE730216C - Device for mounting a seaplane on a tow truck : de en
  • DE730295C - Circuit arrangement for generating vibrations and at the same time amplifying electrical vibrations of a different frequency in the same discharge path : de en
  • DK60490C - Toilet flush valve. : da en
  • DE729600C - Telecommunication and remote control device, especially for monitoring electrical power distribution systems : de en
  • DE730169C - Feed drive for turning benches : de en
  • DE729887C - Drive with endless chain for gate-like locks, especially for lock bodies : de en
  • DE730164C - Device for electrical remote control and remote reporting : de en
  • GB550464A - Improvements relating to air-raid shelters and dwelling-houses : en
  • US2307361A - Switch control device : en
  • USD134718S - Crawford bus : en
  • DE729971C - Four-stroke control switch : de en
  • DE730257C - Luminous bodies : de en
  • FR877657A - : fr
  • CA409770A - Gas mixture cooling process : en fr
  • CA409798A - Hinge : en fr
  • DE730161C - Heavy-duty exhaust collectors, exhaust pipes, sound and flame suppressors for altitude engines and other high-performance engines : de en
  • DE730243C - Microphone assembled with one or more amplifier tubes : de en
  • US2307139A - Flight mounting : en
  • DE729865C - Broom rake : de en
  • GB550331A - Improvements in and relating to apparatus for continuous splitting of fats and fattyoils : en
  • GB550474A - Improvements in absorption refrigerating apparatus : en
  • US2307630A - Propeller blade pitch control mechanism : en
  • FR877882A - light metal rivet nut for aircraft construction : en fr
  • US2307354A - Textile equipment : en
  • DE729876C - Method of manufacturing a brake shoe by forging in a die : de en
  • DE730125C - Antenna arrangement : de en
  • US2307337A - Wringer : en
  • US2307598A - Protective system for series capacitors : en
  • GB550426A - Improvements in or relating to electrical indicating and remote-control apparatus : en
  • CA409720A - Perforating method and apparatus : en fr
  • DE730054C - Suspension for catenary lines : de en
  • DE729960C - Process for removing small amounts of oxygen from gas mixtures containing hydrogen and olefins : de en
  • DE730030C - Automatic firearm in which the barrel is narrowed by an insert in front of the cartridge in order to increase the gas pressure when firing with blank cartridges : de en
  • IE19168L - Stereoscopic picture apparatus : en
  • US2307011A - Electromagnetic horn : en
  • US2307369A - Projectile : en
  • US2307665A - Conveyer : en
  • USD134772S - Design for a hat : en
  • CA409825A - Telephone system : en fr
  • CA409725A - Tobacco pipe cleaning device : en fr
  • DE729868C - Threshing machine assembled with a straw press : de en
  • US2307415A - Feed mechanism : en
  • US2307351A - Typewriting machine : en
  • US2307730A - Gas mask : en
  • DE730282C - Brake circuit for DC vehicles with several main current motors and cross-connected field windings disassembled into several parts : de en
  • FR877904A - Process for the production of polychrome images with sound recording : en fr
  • FR878020A - Process for tempering glass objects : en fr
  • GB550431A - Improvements relating to slicing machines : en
  • DE729860C - Two-stage axial fan : de en
  • FR877910A - Method and apparatus for regenerating tennis balls and similar applications : en fr
  • GB550419A - Improvements in or relating to electrical condensers and the manufacture thereof : en
  • DE729518C - Method and device for producing a bottle neck on a sleeve made of paper, cardboard or the like. : de en
  • DE729932C - Soldering alloy : de en
  • US2307377A - Umbilical clip : en
  • DE729933C - Multi-part core for filling pre-pressed internal combustion engine pistons when upsetting an inner annular bead at or near the open piston end : de en
  • DE730152C - Ladder slide : de en
  • DE729975C - Contact piece for grinding brushes : de en
  • FR877876A - Industrial product usable for the simultaneous preparation of ammonia gas and acetylene : en fr
  • US2307226A - Telephone calling dial device : en
  • US2307448A - Attachment for rakes : en
  • USD134729S - Design for an ash tray : en
  • DE730071C - Magnetic electron lens : de en
  • US2307470A - Gut string with wear resisting coating : en
  • US2307482A - Insecticide : en
  • US2307513A - Feeding device for sewing machines : en
  • US2307569A - Food cover : en
  • DE730066C - High pressure metal vapor discharge tubes : de en
  • US2307672A - Fume disposal in catalyst regeneration systems : en
  • DE729911C - Ultra-short wave arrangement with circularly deflected cathode ray and subdivided useful electrode : de en
  • US2307059A - Apparatus for separating garbage : en
  • US2307439A - Spring suspension for railway trucks : en
  • US2307682A - Box : en
  • US2307074A - Modulating circuit for high frequencies : en
  • US2307244A - Production of indoles : en
  • US2307376A - Pattern mechanism for the manufacture of lace patterns : en
  • FR877869A - Improvements in the construction of power lines or the like subjected to the action of the wind : en fr
  • AU395841A - Improvements in and connected with vehicles provided with lifting and carrying means : en
  • DE729952C - Brake for loads to be dropped from aircraft : de en
  • US2307067A - Servo cylinder : en
  • US2307571A - Shipping and display container : en
  • US2307647A - Weather strip and sash mounting : en
  • US2307389A - Conveyer : en
  • US2307239A - Modified clay : en
  • GB550318A - Improvements in photo-electric cells : en
  • CA409792A - Metal sheet feeding apparatus : en fr
  • US2307411A - Saw handle : en
  • US2307434A - Catalytic treatment of hydrocarbons : en
  • USRE22244E - Wiper abm : en
  • DE712291C - Pouring device for bottles or the like. : de en
  • DE729543C - Division machine : de en
  • FR877921A - Hydraulic press installation for river or other applications : en fr
  • US2307373A - Rotary electric switch : en
  • CA409719A - Harness trace connector : en fr
  • DE729844C - Method for the electrical seam soldering of a pipe made from a metal strip : de en
  • DK60485C - Device for streamlined Motor Vehicles for Illuminating the License Plate and the Nationality Mark. : da en
  • CA409715A - Cleaning machine : en fr
  • GB550391A - Spraying rubber latex : en
  • FR877971A - Azo dyes and their preparation process : en fr
  • CA409826A - Paper file support : en fr
  • DE729850C - Process for the preparation of 2,4-dioxooxazolidines substituted in the 5-position : de en
  • DE730280C - Process for the manufacture of sulphonation products : de en
  • CA409778A - Alternating current lighting system : en fr
  • US2307466A - Magnesium oxide hot process for silica removal from water : en
  • CA409852A - Motor vehicle window operator : en fr
  • US2307082A - Method of frothing latex : en
  • DE730002C - Exhalation valve for gas masks : de en
  • FR878031A - Corrugated plate carrier system : en fr
  • FR877903A - Method of sensitizing silver halide emulsions, in particular those with a high silver chloride content, by mixtures of sensitizers : en fr
  • DE730268C - Device for introducing thin wire-shaped flashlight substance into the vessels of electric flashlight lamps : de en
  • DE728023C - Coupling between the axle and the brake of an aircraft wheel : de en
  • DE729439C - Automatic control for water gas systems or the like. : de en
  • DE729926C - Oxygen treatment device : de en
  • DE729929C - Binders : de en
  • FR878042A - Device for defibrating, draining, degassing and obtaining peat, as well as any other fibrous and plastic substance in the form of coils : en fr
  • GB550357A - Improvements in or relating to force feed lubricating pumps : en
  • US2307040A - Variable pitch propeller control : en
  • US2307146A - Display container : en
  • FR877824A - Device for assembling the level blades of louvers on their leaves : en fr
  • US2307023A - Method and apparatus for landing aircraft : en
  • US2307162A - Process for the production of color images : en
  • US2307055A - Apparatus for the extrusion of cork : en
  • US2307068A - Slug casting machine : en
  • US2307232A - Coated abrasive : en
  • US2307610A - Catalytic treatment of hydrocarbons : en
  • US2307199A - Aircraft cabin pressure controller : en
  • US2307118A - Process of producing effects on textile material : en
  • US2307088A - Cigarette : en
  • DE730102C - Device for the electrical remote control of colored discs in stage lighting devices : de en
  • DE730109C - Device for the remote control of receivers connected to a power network : de en
  • FR877806A - Variable pressure drop device : en fr
  • FR877955A - Progressive automatic clutch : en fr
  • US2307010A - Trimethyl - hydroquinone condensa- : en
  • DE730301C - Arrangement for the operation of electromagnetic motors for impact tools : de en
  • DE730068C - Thermal relays, especially stepping mechanisms : de en
  • DE730285C - Contact selector, driven by a small synchronous motor, for remote control systems that work according to the start-stop principle : de en
  • GB550320A - Improvements in and relating to saw blades : en
  • US2307243A - Drawing be-containing alloys : en
  • USRE22245E - Refrigebating mechanism : en
  • US2307018A - Cataphoretic deposition of insulating coatings : en
  • US2307543A - Ladder support : en
  • GB550424A - Improvements in and relating to adjustable seats and the like : en
  • DE730087C - Pocket lighter : de en
  • DE730144C - Darkening switch arrangement for AC systems : de en
  • US2307159A - Refrigerator door and gasket construction : en
  • US2307690A - Multiple cable connector : en
  • DE730205C - Spring clutch : de en
  • DK60488C - Device for Holders for Windows and similar hinged Construction parts. : da en
  • DE729982C - Electrical, adjustable or non-adjustable capacitor : de en
  • DE730311C - Spring insert for seat cushions, mattresses, etc. like : de en
  • FR878014A - System for assembling a box spring with a backrest or a sofa armrest : en fr
  • FR877901A - High pressure electric discharge lamp : en fr
  • GB550344A - Improvements relating to telephone systems : en
  • US2307488A - Electric capacitor : en
  • DE729955C - Conveyor device for coal production : de en
  • DE730240C - Suspension of multi-pole contact lines : de en
  • DE729945C - Control for the electric motor drive of a flying scissors : de en
  • GB550462A - Improvements in and relating to chicken rearing brooders or hovers : en
  • US2307056A - Film : en
  • US2307267A - Glove : en
  • USD134768S - Design for a dress : en
  • US2307679A - Cyanomethyl chloroformate and method of preparing the same : en
  • DE730089C - Self-locking nut : de en
  • DE730160C - Thermal power plant for gaseous propellants : de en
  • FR878043A - Process for preparing a lye containing bisulfite : en fr
  • US2307275A - Drilling safety joint : en
  • US2307722A - Safety step stool : en
  • DE730137C - Mains connection charger for accumulator flashlights : de en
  • US2307634A - Closure fastener : en
  • US2307567A - Switch closing mechanism : en
  • CA409797A - Metal vapour electric converter : en fr
  • DE730201C - Pressure vessel for soaking fabrics with rubber milk : de en
  • GB550329A - Sheep shearing machine : en
  • DE730165C - Relay-free device for automatic constant voltage maintenance in AC networks by means of regulating transformers : de en
  • US2307154A - Apparatus for continuous clarification : en
  • US2307548A - Refrigerating apparatus : en
  • DE730050C - Process for the preparation of tertiary carbinols of the cyclopentanopolyhydrophenanthrene series : de en
  • US2307540A - Garment placket : en
  • CA409741A - Episcopic projector : en fr
  • DE729845C - Process for coloring vulcanized fiber : de en
  • DE730112C - Drill rig : de en
  • FR877819A - Frames for bicycles, tandems or the like with double tubing and methods of assembling the tubes to the crankset and to the seat post : en fr
  • US2307014A - Fire hose nozzle : en
  • US2307363A - Dishwasher : en
  • US2307394A - Gearing : en
  • US2307582A - Gun mount : en
  • DE729908C - Process for increasing the content of citric acid releasable phosphoric acid in Thomas flour with simultaneous extraction of manganese and iron : de en
  • US2307036A - Business transaction stationery : en
  • US2307309A - Liquefied gas system : en
  • US2307547A - Sash balance : en
  • FR878048A - Pneumatic hammer, especially jackhammer : en fr
  • GB550390A - Improvements relating to fluid-operated motors : en
  • GB550434A - Improvements in encasements or coverings for metal joists, girders and the like : en
  • DE730157C - Connection for well filter and attachment pipes made of wood : de en
  • DE730302C - Electricity meter with an automatically adjusting control element according to the rotational speed of the meter : de en
  • DE728161C - Electric high voltage switchgear cell : de en
  • DE729958C - Washing machine with swinging container : de en
  • GB550363A - An improved type of signal arm : en
  • GB550375A - Improvements in and relating to vapour lamps : en
  • DE730255C - Leather fatliquor : de en
  • DE729985C - Process for the production of building-like fiber material from animal skin substance : de en
  • DE730058C - Arrangement for frequency division : de en
  • DE729873C - Turret lathe with horizontally mounted turret head : de en
  • DE730284C - Double-pole control switch for stoves : de en
  • US2307503A - Profiling control system : en
  • DE729937C - Differential gear working with planetary spur gears for motor vehicles : de en
  • DE730135C - High-performance switch with conductive switching fluid : de en
  • US2307667A - Wrapped package with rip cord : en
  • USD134765S - Design for a dress : en
  • DE730018C - Process for the preparation of imidazolines containing sulfuric acid residues : de en
  • DE730173C - Process for dyeing cellulose fibers : de en
  • DE730314C - Brake fan : de en
  • US2307643A - Process for the production of a : en
  • CA409766A - Food product merchandising method : en fr
  • CA409786A - Elastic fabric : en fr
  • CA409820A - Receptacle dispensing stopper : en fr
  • CA409726A - Heating apparatus : en fr
  • DE729923C - Process for the preparation of water-soluble disazo dyes : de en
  • GB550437A - Improvements in flying or other controls for aircraft, ships or other vehicles : en
  • US2307422A - Cooling system for buildings : en
  • CA409723A - Signal system conductor and track wire connector : en fr
  • CA409789A - Duplicating machine moistening device : en fr
  • US2307293A - Wall joint : en
  • CA409753A - Easy-opening container : en fr
  • US2307402A - Shoe and outsole therefor : en
  • US2307675A - Process for the production of ozokeritelike substances : en
  • US2307725A - Starch conversion process : en
  • US2307398A - Peanut butter process : en
  • USD134753S - Design for a dress : en
  • US2307566A - Pneumatic drive fuel pump : en
  • US2307589A - Dispenser for beverages : en
  • US2307692A - Refuse collecting container : en
  • US2307216A - Connector : en
  • US2307653A - Wall and ceiling construction : en
  • CA409871A - Fourdrinier machine high pressure head box : en fr
  • CA409814A - Absorbent material : en fr
  • US2307174A - Power transmission gearing : en
  • US2307533A - Weeder attachment for cultivators : en
  • CA409765A - Bearing : en fr
  • GB550364A - An improved porters' or sack truck : en
  • DE730190C - Process for the preparation of water-soluble disazo dyes : de en
  • DE729840C - Portland cement sintered binder and process for its production : de en
  • FR877943A - Suspension and damping device for shock absorption, especially in airplanes : en fr
  • GB550339A - Frictional torque transmitting device : en
  • CA409767A - Universal joint : en fr
  • DE730279C - Process for the production of viscose : de en
  • FR877996A - Stereoscopic windshield for cameras : en fr
  • DE730274C - High heel nailing machine : de en
  • US2307460A - Toggle action clamping device : en
  • CA409768A - Gas mixture separating process : en fr
  • FR877813A - Packaging for fruits or others : en fr
  • GB550453A - Manufacture of organic unsaturated halogenated hydrocarbons : en
  • GB550361A - Improvements in or relating to electric clocks : en
  • US2307695A - Weight testing machine : en
  • FR877986A - Process for the establishment of joint plates, in particular for timber frames : en fr
  • GB550353A - Improved means for the remote control of apparatus through a separate control line : en
  • DE730207C - Drive for machine tools, especially lathes : de en
  • DE730231C - Process for the production of yeast : de en
  • CA409822A - Railway car coupler : en fr
  • GB550346A - Improvements in or relating to hydraulic remote controls : en
  • CA409716A - Milling machine cherrying attachment : en fr
  • FR877809A - Improvements to assemblies comprising several pressurized fluid generators, in particular with free pistons supplying at least one receiving element : en fr
  • US2307240A - Manufacture of diolefins : en
  • FR878027A - Continuous speed change with belt and conical plates : en fr
  • DE729949C - Aircraft with devices for influencing the flow boundary layer : de en
  • US2307508A - Preventing evaporation from oil storage tanks : en
  • US2307345A - Lens mount : en
  • US2307611A - Wrecking truck : en
  • US2307120A - Slide loop : en
  • DE730141C - Sheet metal package for electrical machines : de en
  • GB550461A - Improvements in or relating to burners : en
  • US2307268A - Typewriting machine : en
  • GB550410A - Improvements in fluid pressure accumulators having flexible diaphragms : en
  • DE730131C - Antenna for vehicles in which one or more window panes on the vehicle are used as antenna carriers : de en
  • DE730024C - Unwinding device for strong strip-shaped rolling stock with drivable unwinding drum : de en
  • DE730143C - AC machine with concentrated armature winding : de en
  • GB550468A - Improvements in or relating to vacuum tube amplifiers : en
  • US2307251A - Compressor lubricating system : en
  • DE730185C - Switch for switching electrical circuits on and off : de en
  • US2307158A - Antiskinning anb weathek-besist- : en
  • DE730010C - Carriage cushioning with combined braking device : de en
  • DE729836C - Process for the production of items from pure chrome by electroplating : de en
  • DE729874C - Dividing head for machine tools, especially milling machines : de en
  • FR877868A - Process for obtaining industrial detergent products : en fr
  • GB550326A - Improvements in or relating to tanks for use in aircraft : en
  • FR878017A - cigar and cigarette tip snuffer for cigar and cigarette holders : en fr
  • DE730048C - Device for determining the driving pressure of coking coal : de en
  • DE730193C - Coolants and lubricants for the non-cutting deformation of metals : de en
  • US2307236A - Draft gear : en
  • DE730251C - Process for the production of a fastening device for very thin, thread-like or foil-like semiconductor resistors : de en
  • FR877992A - Improvements to devices used to produce a continuous glass ribbon, douci or douci or polished : en fr
  • GB550452A - Improvements in or relating to syphonic cisterns : en
  • US2307594A - Press : en
  • DE730192C - Process for the production of Kuepen dyes : de en
  • CA409795A - Compressed air intensifier : en fr
  • US2307420A - Device for placing burial vaults and caskets : en
  • DE729668C - Process for the production of thick-walled pressure vessels with closed ends, the walls of which consist of several layers : de en
  • DE730117C - Process for the preparation of butene-1-one-3 : de en
  • DE730145C - Contact arrangement on relays without directional force with return coil : de en
  • DE730158C - Manhole cover made of pressed sheet steel : de en
  • FR877814A - Frame for cycle, motor-bike or motorcycle : en fr
  • US2307289A - Mold charging mechanism : en
  • US2307712A - Central station dispatching control system for conveyers : en
  • CA409736A - Developing tray : en fr
  • CA409727A - Diesel engine injector : en fr
  • DE730235C - Process for the preparation of hexamethyleneimine : de en
  • US2307706A - Box : en
  • DE730239C - Boiler support, especially for rail transport boilers : de en
  • US2307512A - Process of making copper base alloys : en
  • US2307035A - Electron multiplier : en
  • US2307352A - Bow-leggedness-concealing hose supporter : en
  • US2307447A - Magnetic coupling control : en
  • FR877975A - Mobile cables for telecommunications with 4 star quads with individual screens and separate conductors mounted in the external angular voids : en fr
  • CA409802A - Lighting structure : en fr
  • CA409784A - Electrical measuring apparatus : en fr
  • DE730056C - Communication system with two-way communication : de en
  • US2307106A - Cylinder lock : en
  • US2307424A - Paper cutting device : en
  • USD134743S - Design fok a dress : en
  • DE1527566U - Handle tool holder : de en
  • CA409866A - Sheet material manufacture : en fr
  • DE729965C - Blade ring association for radially loaded turbines or turbine-like compressors : de en
  • CA409801A - Fire extinguisher : en fr
  • US2307399A - Process for the production of colored photographic images with dyestuff formers fast to diffusion : en
  • US2307457A - Shear : en
  • US2307475A - Power transmitting mechanism : en
  • US2307714A - Face muscle lifter : en
  • US2307047A - Thickening of solutions : en
  • US2307091A - Vinyl resin molding compositions : en
  • US2307134A - Motor control : en
  • CA409793A - Sheet assembling apparatus : en fr
  • DE730312C - Spoon with cavities to accommodate means for temperature compensation : de en
  • CA409729A - Panel fastener : en fr
  • CA409810A - Fluid pressure braking system : en fr
  • US2307299A - Battery separator and method of making : en
  • US2307334A - Synchronizing device : en
  • US2307322A - Kiln : en
  • US2307501A - Means for marking lenses and similar articles : en
  • US2307586A - Heater grille : en
  • US2307071A - Typographical composing machine : en
  • US2307190A - Band saw : en
  • US2307534A - Calculating device : en
  • US2307715A - Hydrocarbon conversion : en
  • FR877931A - Process for preparing acetic anhydride : en fr
  • US2307505A - System of communication : en
  • USD134724S - Design fob a thread dispenser or the like : en
  • US2307669A - Listing machine : en
  • US2307143A - Book support : en
  • US2307572A - Gauging and sorting machine : en
  • US2307080A - Method of and means for attaching panels to framework : en
  • US2307167A - Fulling mill : en
  • USRE22243E - Self-locking ntt : en
  • DE705131C - Method and device for increasing the yield strength of iron rods : de en
  • DE730191C - Process for the production of iron or chromium-containing tris or tetrakisazo dyes : de en
  • US2307686A - Garment press : en
  • DE729970C - Electron switch : de en
  • DE729996C - Process for processing liquid fuels : de en
  • GB550407A - Improvements in or relating to means for the control of the quantity of scavenging air supplied in two-stroke cycle internal combustion motors provided with a scavenging fan : en
  • US2307573A - Smoke purifier : en
  • FR877940A - Photographic development of film strips : en fr
  • FR877969A - Printing mechanism for accounting machines : en fr
  • US2307196A - Hydraulic force transmission mechanism : en
  • US2307698A - Manufacture of abrasive articles : en
  • USD134751S - Design fob a dress : en
  • US2307163A - Vermin trap : en
  • US2307616A - Fuel tank : en
  • DE730096C - Gas protective mask with device for feeding liquid food : de en
  • FR877866A - Improvement in vegetable preservation processes : en fr
  • US2307066A - Diaphragm : en
  • CA409828A - Internal combustion engine : en fr
  • DE729957C - Washing machine with a rotating and swiveling laundry mover : de en
  • FR877907A - Halogenated anthraquinone derivatives and process for their preparation : en fr
  • GB550373A - Improvements in mowing machines : en
  • GB550349A - Improvements in internally expanding brakes : en
  • GB550392A - Improvements in and relating to sealing glands : en
  • FR878003A - Method and device for checking toothing : en fr
  • DE722803C - Machine for the mass production of macaroons : de en
  • GB550384A - Improvements in methods and apparatus for welding by electric discharges : en
  • US2307629A - Cementitious article of manufacture : en
  • DK60479C - Welding transformer unit consisting of a welding transformer with series-connected, adjustable inductance. : da en
  • FR877847A - Use of oils and fatty substances remaining in the wiping cloths of machines for the manufacture of printing inks : en fr
  • FR877919A - Method and device for firing, roasting and sintering materials of all kinds : en fr
  • FR877879A - Balancing device for signal transmission systems : en fr
  • US2307048A - Production of tio2 pigments : en
  • USD134763S - Design fob a dress : en
  • US2307724A - Heating system : en
  • DE729888C - Foot flap for suction excavator : de en
  • DE730128C - Method for determining the side of a double-frame direction finder : de en
  • FR877812A - Process for constituting a high heat insulating down fabric and resulting product : en fr
  • FR877976A - Resetting extended chains to their original pitch : en fr
  • GB550408A - Improvements in "knock-down" or collapsible packing cases : en
  • US2307623A - Seam opening device : en
  • FR878028A - Condensation products and their preparation process : en fr
  • GB550458A - Improvements in or relating to the treatment of textile and other materials : en
  • FR878034A - Mounting device for eliminating the distortion of the anode current of an amplifier tube caused by the establishment of the grid current : en fr
  • CA409760A - Milk container : en fr
  • GB550456A - Improvements in or relating to rock drills : en
  • FR877834A - Improvements to acetylene gas generators : en fr
  • FR877810A - Improvement brought to the rolls of mixers, calenders, rolling mills and similar devices to achieve rational electric heating : en fr
  • DE730038C - Electric heated furnace for heating, in particular for casting elongated goods made of light metal : de en
  • DE729980C - Relay with one working and one retraction magnet : de en
  • DE729935C - Photographic or cinematographic camera with photoelectric light meter : de en
  • FR877832A - Water vaporization and steam injection nozzle for all gasifiers : en fr
  • FR877961A - New method of making scissors and the like and resulting products : en fr
  • DE730223C - Magazine for machines for packing yarn bodies etc. in boxes : de en
  • DE730238C - Process for the preparation of 1-amino-6-oxynaphthalene-8-sulfonic acid and 1-amino-7-oxynaphthalene-5-sulfonic acid : de en
  • DE730014C - Safety device for wind power plants : de en
  • US2307657A - Logging swivel : en
  • FR877852A - Manufacturing process of new tetracyclic ketones : en fr
  • FR877916A - Method for increasing the light output in the projection of cinematographic images : en fr
  • DE730106C - Magnetic field tubes for generating and receiving ultra-short waves, in particular centimeter waves : de en
  • US2307314A - Fluid dispensing apparatus : en
  • US2307379A - Dimmer for flash lamps : en
  • DE730188C - Arc converters with electrodes in flowing gas, in particular Marx converters, with gas supply and gas discharge lines, in particular made of insulating material : de en
  • DE729892C - Process for the preparation of condensation products of sulfonic acid amides : de en
  • FR877888A - Process for preparing oxyphenyl-amino-propanes and their derivatives : en fr
  • FR877892A - Method and device for the automatic weighing of granular, fibrous or similar substances in boxes of equal weight : en fr
  • GB550459A - Improvements in and relating to rotary valve controlled internal combustion engines : en
  • US2307559A - Container : en
  • DE730261C - Device for separating air and water for devices for measuring liquids which are lighter than water, in particular liquid fuels : de en
  • US2307170A - Phonograph trip mechanism : en
  • US2307043A - Container : en
  • DE729565C - Procedure for remote switching in multi-phase networks only with the help of the power lines : de en
  • DE730036C - Device for automatic volume control : de en
  • GB550451A - Improvements in and relating to electric valve control circuits : en
  • DE730213C - Process for making multicolor subtractive films : de en
  • FR877884A - Rectilinear movement breech mechanism for automatic firearms : en fr
  • USD134722S - Design for a compass : en
  • US2307038A - Tubular night latch : en
  • US2307427A - Fluid conductor : en
  • DE730023C - Clamping and advancing device for rod-shaped material in machine tools, in particular semi-automatic rotating arms, which can be moved by a common hand lever : de en
  • US2307308A - Degenerative expander-compressor circuit : en
  • US2307123A - Telegraph printer : en
  • US2307452A - Slitting and scoring machine : en
  • US2307213A - Garment construction : en
  • GB550472A - Automatic control apparatus for temperature, fluid pressure or humidity : en
  • DE730049C - Process for the pressure hydrogenation of coal, coal extracts, tars, mineral oils or cracked residues : de en
  • DE730212C - Process for the desensitizing and fog-free development of photographic silver halide emulsions : de en
  • DE729959C - Wire stapler : de en
  • GB550369A - Improved method of, and means for, casting metal to fill and enclose metal sections preparatory to bending them : en
  • DE730011C - Circuit arrangement for the transmission of signals by current surge combinations, which are formed from two types of current and zero : de en
  • DE730253C - Display device for fuses : de en
  • US2307211A - Television image enlarging system : en
  • USD134766S - Design fok a dress : en
  • USD134769S - Design for a case fob spectacles : en
  • US2307654A - Aircraft : en
  • DE730288C - Light shield for the photocell of the electric light meter : de en
  • US2307341A - System for providing hot wash water : en
  • US2307524A - Protector for rotary work : en
  • US2307710A - Roasting process and control : en
  • DE726623C - Process for the treatment of rubber tires in order to increase the anti-slip properties : de en
  • DE729791C - Electric motor-driven hoist drive : de en
  • GB550406A - Improvements relating to packings for water cooling and like towers : en
  • CA409759A - Chlorsulphonic acid preparation : en fr
  • US2307370A - Clothes pressing machine : en
  • US2307414A - Pan line connector : en
  • US2307708A - Monocoque structure : en
  • US2307609A - Board game apparatus : en
  • US2307278A - Venetian blind : en
  • USD134762S - Design for a textile fabric : en
  • DE729561C - Device for changing the track width of rail vehicles : de en
  • DK60472C - Process for the preparation of p- (α-haloalkyl) -benzolsulfonic acid amide compounds. : da en
  • US2307516A - Commutator-centering means : en
  • US2307685A - Pipe : en
  • DE729842C - Process for the preparation of sulphite waste liquors for feed and local yeast production : de en
  • US2307233A - Sliding shelf support : en
  • DE730175C - Device for cleaning intake air containing dust and sand, in particular for internal combustion engines : de en
  • FR877820A - Steering with double tubing and removable attachment mode of the tubing in the frames of bicycles, tandems or similar : en fr
  • GB550466A - Improvements in braces, suspenders and similar articles : en
  • DE730009C - Bicycle or scooter driven by an endless belt : de en
  • DE729569C - Arc furnace : de en
  • FR877951A - Improvements to handpieces for dentists : en fr
  • CA409788A - Needle ribbon loom : en fr
  • US2307271A - Gasoline dispensing pump illuminated dial : en
  • US2307315A - Time delayed reduced voltage control circuit : en
  • US2307375A - Transmission of electrical signals having a direct current component : en
  • US2307383A - Safety switch apparatus : en
  • US2307423A - Electric plug means : en
  • CA409758A - Polymerizable and polymerized complex : en fr
  • US2307095A - Combination window shade and screen roller : en
  • US2307397A - Flotation of quartz and other acidic minerals : en
  • US2307536A - Regulator system : en
  • US2307684A - Liquefication of starch : en
  • US2307287A - Reclaiming mechanism for cotton extracting and cleaning machines : en
  • US2307441A - Vehicle signal device : en
  • US2307094A - Refrigerator cabinet : en
  • DE730182C - Process for the preparation of N- (aminoalkyl) pyrrolidones : de en
  • DE730159C - Process for making painter's brushes and paint brushes : de en
  • US2307245A - Computing and printing machine : en
  • US2307697A - Electronic tube : en
  • US2307474A - Manufacture of selenium rectifiers : en
  • CA409869A - Printing plate manufacture : en fr
  • US2307662A - Means for controlling wells : en
  • US2307477A - Automobile window screen : en
  • US2307530A - Packaging shoelaces and the like : en
  • US2307486A - Carburetor deloader : en
  • CA409853A - Lens mounting : en fr
  • US2307366A - Windshield wiper arm control : en
  • CA409809A - Fluid pressure braking system : en fr
  • DE730098C - Towing device : de en
  • US2307507A - Rock drill : en
  • DE729839C - Method for closing the open shaft end of valves for internal combustion engines that are hollow in the plate and shaft : de en
  • CA409830A - Radio receiver tuning mechanism : en fr
  • US2307480A - Telegraph key : en
  • US2307633A - Sequence switch : en
  • GB550321A - Improved method of and apparatus for the heat treatment of steel rails : en
  • US2307702A - Alpha-1-naphthyl cinnamic nitrile as a pest-control agent : en
  • DE729849C - Process for the preparation of ketones from heterocyclic compounds : de en
  • FR877990A - Hollow chamber resonator for transit time lamps : en fr
  • GB550441A - Improvements relating to the production of metallic resinates : en
  • US2307523A - Doll's head : en
  • US2307256A - Garment blocking form : en
  • DE729979C - Multiple contact relay : de en
  • DE730237C - Process for the preparation of 4-aminobutanols-1 : de en
  • GB550378A - Improvements in and relating to settling tanks : en
  • FR877956A - Friction ring seal : en fr
  • GB550418A - Improvements in armour-piercing projectiles : en
  • DE730281C - Process for agglomeration of iron ores and processed products : de en
  • GB550354A - Variable pitch co-axial airscrews : en
  • GB550383A - Improvements in respiratory apparatus : en
  • US2307034A - Method and apparatus for the extrusion of cork compositions : en
  • US2307652A - Brake construction : en
  • US2307408A - Portable hand operated dishwasher : en
  • DE730176C - Heating device for vessels and molds : de en
  • DE730181C - Process for the production of organic sulfur compounds : de en
  • US2307008A - Apparatus for feeding materials : en
  • US2307553A - Welding apparatus : en
  • CA409816A - Surgical dressing : en fr
  • US2307388A - Suspension assembly for tandem axle trucks : en
  • DE730016C - Vessel with working materials that act directly on the goods in the vessel, for the large-scale chemical and / or thermal treatment of earth, ores and metals : de en
  • USD134717S - Design foe a desk : en
  • US2307608A - Stocking, knitted fabric, and their method of production : en
  • USD134721S - Design for a display stand for cas- tons, containers, or the like : en
  • CA409854A - Power transmission : en fr
  • US2307385A - Liner for polishing wheels, grindstones, and the like : en
  • US2307075A - Vinyl resin composition : en
  • US2307713A - Cap and supporting frame therefor : en
  • US2307374A - Radial hydraulic pump : en
  • US2307410A - Method of manufacturing sliding clasp fasteners : en
  • US2307122A - Adjustable bill stop : en
  • US2307025A - Electric regulation : en
  • US2307157A - Stabilized vinyl resin : en
  • US2307631A - Process for bleaching flour : en
  • US2307445A - Body construction : en
  • US2307416A - Resilient breathing insole : en
  • US2307640A - Cage slot grinder : en
  • CA409818A - Wheel rim : en fr
  • CA409837A - Hydraulic vehicle brake : en fr
  • FR877874A - Improvements to multi-tube boilers : en fr
  • US2307403A - Method of making spark plugs : en
  • CA409808A - Compound master cylinder for brakes : en fr
  • US2307320A - Draft gear : en
  • US2307130A - Process for dewaxing hydrocarbons : en
  • USD134764S - Design for a dress : en
  • US2307261A - Device to prevent singles in doubleend yarn operation : en
  • US2307107A - Centrifugal extractor : en
  • US2307519A - Meat block brush : en
  • GB550342A - Improvements relating to the generation and/or modulation or control of electrical frequencies : en
  • DE730139C - Rapid differential protection : de en
  • GB550436A - Improvements relating to metallurgical furnaces : en
  • IE16362L - Electric measuring instruments : en
  • US2307511A - Holder for articles such as pens and pencils : en
  • US2307717A - Material collecting and loading apparatus : en
  • GB550347A - Fork-end fitting for cables and rods : en
  • GB550371A - Improvements in or relating to circular knitting machines : en
  • DE730233C - Promote seed germination and plant growth : de en
  • DE729961C - Process for the production of nitriles : de en
  • FR877974A - Skirt guard for bicycles or similar vehicles : en fr
  • US2307168A - Refrigeration : en
  • US2307588A - Insulated electrical conductor : en
  • US2307131A - Graphical analyzing device : en
  • US2307247A - Lighting system : en
  • GB550327A - Improvements in safety razors : en
  • GB550455A - An improved construction and arrangement of belt fastening means for wearing apparel : en
  • DE729841C - Protection against backfire and oxygen backflow with flame delay diversion : de en
  • DE730150C - Inclined grate with changeable free grate area : de en
  • DE730252C - Assembly of several single-pole fuse elements with molded material knife fuses : de en
  • US2307350A - Golf club box : en
  • US2307109A - Record controlled interpreting machine : en
  • US2307362A - Illuminated globe : en
  • DE730060C - Device for emitting short-term high-frequency pulses : de en
  • DE730168C - Gas turbine with constant pressure combustion : de en
  • DE730242C - Circuit arrangement for telegraph exchanges with four-wire and single lines : de en
  • GB550471A - Improvements in and relating to refrigerators : en
  • US2307432A - Swaging tool for tubes : en
  • DE729878C - Monitoring of the screen brightness while showing films : de en
  • DE730134C - Snap device for switches, valves or the like. : de en
  • GB550448A - Improvements in and relating to self-sealing petrol pipes : en
  • CA409728A - Broaching machine : en fr
  • US2307119A - Pencil sharpener : en
  • CA409841A - Seasoning composition : en fr
  • US2307252A - Stemming dummy : en
  • US2307380A - Refrigeration : en
  • US2307515A - Regulating system : en
  • CA409744A - Fluid pressure generating or actuated device : en fr
  • CA409840A - Liquid conduit system dispatching board : en fr
  • USD134741S - Design foe a jacket : en
  • US2307229A - Control apparatus : en
  • US2307709A - Back rest : en
  • US2307597A - Dispensing means : en
  • CA409747A - Grain drill and fertilizer spreader : en fr
  • DE730171C - Storm lantern that can be used as an air raid lantern : de en
  • US2307277A - Wire support : en
  • CA409779A - Electric heater : en fr
  • US2307021A - Archer's bow : en
  • CA409761A - Meat processing : en fr
  • CA409856A - Telephone system : en fr
  • DE729972C - Time contact device for measuring devices arranged on a timer : de en
  • DE729997C - Spark plug : de en
  • DE730012C - Process for the production of solderable metal coatings on ceramic bodies : de en
  • DE730091C - Device for electroplating the inner surfaces of hollow workpieces : de en
  • DE730092C - Device for processing surfaces by milling or grinding : de en
  • DE730241C - Circuit arrangement for telegraph lines, over which both telegraph characters and switching criteria are transmitted by similar currents : de en
  • CA409812A - Medical applicator : en fr
  • DE730166C - Device for parallel operation of several voltage regulating devices with step switching of several regulating transformers : de en
  • CA409787A - Army pack sack frame : en fr
  • FR878045A - Gun support device : en fr
  • FR877875A - Portable device with continuous percussion and variable amplitude without reactions for the operator : en fr
  • CA409839A - Poly-carboxylic acid : en fr
  • CA409735A - Supercharged two-cycle engine : en fr
  • CA409821A - Combustible gas indicator : en fr
  • DE729871C - Device for regulating the fuel supply of internal combustion engines : de en
  • DE729947C - Fan impeller : de en
  • DK60484C - Centrifugal pump with rotating housing. : da en
  • DE730273C - Door handle with adjustable collar : de en
  • DE730022C - Device for damping torsional vibrations : de en
  • DE730037C - Impregnation bandage for wooden poles : de en
  • US2307312A - Abrading wheel : en
  • US2307637A - Lapping machine : en
  • US2307323A - Measuring instrument : en
  • US2307263A - Gauging device : en
  • US2307479A - Shutter control and indicating means : en
  • FR877862A - Improvements to pneumatic hammers : en fr
  • US2307270A - Building material : en
  • US2307343A - Rustproofed ferromagnetic powder core : en
  • US2307583A - Remote speed control : en
  • DE729879C - Device for influencing the boundary layer on aircraft wings : de en
  • US2307502A - Vapor electric device and method of operation : en
  • US2307054A - Weather shield visor : en
  • US2307700A - Alpha-phenyl cinnamic nitrile as an insecticide : en
  • FR877837A - Reverse gasifier with total reduction and scouring : en fr
  • FR877804A - Corrosion protection of ferro-magnetic cores : en fr
  • FR878044A - Folding cart trailer for bicycles : en fr
  • DE729633C - Elevator device : de en
  • US2307191A - Apparatus for rolling internally flanged annuli : en
  • FR877957A - Shaft trim : en fr
  • CA409806A - Water-repellent textile material : en fr
  • DE729974C - Commutator ventilation for ventilated direct current machines : de en
  • GB550443A - Improvements in and relating to crepe rubber-soled footwear and the method of making the same : en
  • GB550324A - Improvements in photographic projection-copying apparatus : en
  • CA409831A - Photographic material processing : en fr
  • US2307049A - Process of producing aza-methine dyes : en
  • US2307087A - Container : en
  • FR878004A - Milling head : en fr
  • DE730065C - Device for locking the individual stages of a multi-stage controller for an electrical machine excited from an alternating current network via a rectifier : de en
  • FR877930A - Process for obtaining vanadium slag with simultaneous desulphurization of the cast iron : en fr
  • CA409857A - Piezoelectric apparatus and circuit : en fr
  • DE730108C - Receiving antenna : de en
  • US2307614A - Process and apparatus for drying and conveying tubular products : en
  • DK60473C - Curved or straight line Ball slide contact bracket with cast-on frame. : da en
  • GB550422A - Improvements in variable reactance transformers : en
  • FR877858A - Process for the treatment of various substances to improve their properties or to give them new properties and products obtained : en fr
  • US2307558A - Garment hanger : en
  • GB550433A - Improvements in or relating to electrical resistance heating elements : en
  • DE730196C - Device for processing ointments, creams and other pasty or liquid substances : de en
  • FR878018A - electrodialyzer : en fr
  • GB550330A - Improvements in wiring conduit and wire distribution system : en
  • US2307076A - Packaging : en
  • CA409805A - Textile material dyeing process : en fr
  • DE730052C - Rail wheel exposed to wear on the profile surface with wear-resistant replaceable support : de en
  • FR877978A - Hydro-pneumatic control device for injection syringes and other applications : en fr
  • FR878009A - Process for impregnating combustible materials, such as wood, with aqueous solutions of fire-retardant salts : en fr
  • US2307435A - Gasoline dispensing mechanism : en
  • DE729867C - Cloth conveyor for agricultural machinery : de en
  • DE730025C - Control device for guiding the files when learning to file : de en
  • DE730248C - Terminal for electrical lines : de en
  • US2307592A - Electrical locking connector : en
  • DE730228C - Flower box : de en
  • FR877836A - Tight and resistant closure device for flexible tubes and similar receptacles other than of soft metal : en fr
  • DE729912C - Shortwave antenna for overseas traffic : de en
  • DE730004C - Process for the manufacture of hollow-cylindrical filters for suspended matter cast from a pulp : de en
  • DE730028C - Closure for liquid container with threaded filler neck : de en
  • DE729821C - Automatic gear change gearbox : de en
  • DE730001C - Machine for the production of form sets : de en
  • DE729846C - Process for the production of ice colors in stuff printing : de en
  • FR877670A - : fr
  • FR877981A - Device for loading and discharging bulk products in a dryer : en fr
  • US2307192A - Belt : en
  • US2307336A - Valve for fluid compressors : en
  • DE730162C - Busbars made of magnesium or its alloys : de en
  • US2307153A - Communication system : en
  • US2307464A - Portable tool for cutting patterns : en
  • CA409838A - Knitting machine : en fr
  • DE730306C - Adhesives : de en
  • DE730088C - Fully shielded spark plug : de en
  • US2307175A - Yieldable means : en
  • FR877958A - Alloys of iron and chromium or alloys of iron-chromium-aluminum with the addition of metals, such as lead, zinc, tin, etc. : en fr
  • GB550394A - Improvements in and relating to otterboards : en
  • GB550348A - Improvements in internally expanding brakes : en
  • FR877988A - Method and apparatus for heating a liquid : en fr
  • DE730118C - Process for the preparation of carboxylic acids of the pyridine series from their esters : de en
  • US2307007A - Ignition apparatus : en
  • US2307072A - Typographical composing, casting, and distributing machine : en
  • DE730094C - Process for separating the solid and liquid components of food and luxury goods : de en
  • DE730064C - Electromagnetic switch for alternating current : de en
  • DE730079C - Process for cooling molds, in particular for the continuous casting process : de en
  • US2307179A - Textile fabric : en
  • US2307497A - Thermoresponsive circuit controller : en
  • GB550360A - Improvements in strap fastening particularly for bags, satchels and like receptacles : en
  • DE730180C - Process for the production of acetylene by treating liquid aliphatic hydrocarbons in an electric arc : de en
  • US2307097A - Textile printing paste : en
  • US2307255A - Marine fender : en
  • US2307478A - Fish lure : en
  • GB550336A - Improvements in or relating to adjustable electric resistors : en
  • DE729973C - Relay arrangement for receiving and executing remote control commands : de en
  • DE730290C - Sighting microscope with bent optical axis and lighting device, which can be attached to a tool spindle, in particular the tool spindle of a coordinate drilling machine, by means of a holding device : de en
  • US2307209A - Electronic device : en
  • DE729853C - Process for the preparation of 2,4-diaminothiazole : de en
  • DE730045C - Soft stand-up collar with deformable corners : de en
  • DE730046C - Device for cleaning gasification burner nozzles : de en
  • US2307727A - Tread unit for shoes : en
  • FR877831A - Installation and process for extracting oils from products used to decolorize them : en fr
  • FR877828A - Device automatically regulating the supply of water vapor in a gasifier to dissociate it before it enters the home : en fr
  • US2307160A - Pump : en
  • US2307603A - Electrical precipitator with automatic dust removal : en
  • FR877805A - Double spoke for bicycle, tandem or similar wheels : en fr
  • DE720955C - Driving pulley for pull ropes and conveyor chains : de en
  • DE729861C - Irrigation device for teeth and oral mucosa : de en
  • US2307128A - Attendance recorder punch : en
  • US2307671A - Piston for fluid actuated devices : en
  • US2307266A - Sleeping garment : en
  • US2307649A - Measurement or indication of the thickness of thin sheets, coatings, and the like : en
  • US2307577A - Noncorrosive liquid : en
  • USD134759S - Milking timer : en
  • GB550416A - Improvements in comparators : en
  • GB550414A - Improvements in and relating to a method of and machine for slicing or splitting crepe rubber sheets : en
  • CA409800A - Liquid and vapour contacting device : en fr
  • US2307173A - Electrical scoreboard : en
  • US2307077A - Motor control system : en
  • DE730229C - Relieved, externally operated valve for high pressure : de en
  • DK60489C - Method for Extraction of a Fur of Textile Taverns. : da en
  • FR877894A - Electric voltage regulator-transformer : en fr
  • FR877927A - Method for fastening carbon construction parts to metal parts : en fr
  • DE730186C - Switching arrangement for interruption devices : de en
  • DE729991C - Device for recording tones in sprout script : de en
  • GB550417A - Improvements in hydraulic apparatus : en
  • CA409743A - Hemostatic : en fr
  • FR877893A - Semi-tubular profile with side flanges to serve as a mine support member : en fr
  • DE729988C - Device for regulating the flow rate of the water in water tube boilers, primarily for hot water heating : de en
  • FR877885A - Process for the preparation of pastry by fermentation of the dough by means of yeast : en fr
  • FR877989A - Aerial propeller : en fr
  • FR877880A - Advanced burner for grilling chestnuts, seeds or other similar products : en fr
  • DK60483C - Device for two-stroke internal combustion engines. : da en
  • US2307520A - Electrical take-off device for meters : en
  • US2307668A - Electrical contact : en
  • GB550332A - Improvements in or relating to transfer copying materials : en
  • FR877848A - Improvements to agglomerating machines : en fr
  • FR877949A - Device for coating electrical conductors with insulating tape : en fr
  • DE730210C - Vibrating mill : de en
  • FR878015A - Manufacturing process for sulfur compounds, in particular for cosmetic and industrial uses : en fr
  • DE730132C - Method for monitoring the operational readiness of antenna systems, in particular of aircraft : de en
  • DE729922C - Process for the production of water-insoluble azo dyes on the fiber : de en
  • DK60481C - Self-winding roller blind. : da en
  • DE730095C - Method and device for turning molds for the production of hollow bodies from casting liquids : de en
  • FR877994A - Modified aminoplasts and their manufacture : en fr
  • GB550400A - Improvements in the manufacture of laminated wood tubes : en
  • FR877937A - Indoor telephone system : en fr
  • FR877934A - Mobile cables for telecommunications : en fr
  • FR877967A - Process for the manufacture of products containing all the constituents of potatoes in their original or improved form : en fr
  • US2307081A - Film : en
  • DE729956C - Machine for the production of profiles from metal strips : de en
  • DE730103C - Striking mechanism for synchronous clocks : de en
  • GB550454A - Improvements in pharmaceutical compositions : en
  • GB550411A - An improved device for removing ash from the smoke box of a locomotive boiler : en
  • GB550386A - Improvements in automatic control of variable speed gear between a prime mover and its load : en
  • GB550449A - Improvements in endless track members : en
  • US2307591A - Moistening apparatus : en
  • US2307285A - Mechanical preselector : en
  • US2307024A - Distillate rectification : en
  • CA409718A - Log barking drum : en fr
  • CA409850A - Telegraph transmitting system : en fr
  • FR877889A - Control device for the automatic piloting of an airplane : en fr
  • GB550356A - Improvements in or relating to hydrogenation of unsaturated fatty acid salts : en
  • GB550439A - Improvements in or relating to roof structures : en
  • GB550379A - Improvements in or relating to the treatment of carbon bodies to improve the hardness, density and electrical conductivity thereof : en
  • US2307115A - Storage and cooling vessel : en
  • US2307148A - Repair parts for pipe lines : en
  • DE729919C - High voltage transformer : de en
  • US2307642A - Valve mechanism for master cylinders : en
  • USD134733S - Design fob a carton : en
  • FR877982A - Improvements to fuel agglomerates : en fr
  • USD134725S - Design for a table : en
  • DE730029C - Device for closing bottles or the like. : de en
  • GB550442A - Improvements in or relating to the die-casting of metals : en
  • DE729921C - Control circuit for gas or vapor discharge vessels connected in parallel in opposite directions with initial ignition : de en
  • DE729966C - Connecting ring between machine parts, in particular for sealing blade and labyrinth carriers for steam and gas turbines : de en
  • US2307028A - Container : en
  • US2307187A - Shock absorbing coupling : en
  • DE726065C - Lubricating device with a sieve held in the lubrication channel by holding plugs : de en
  • DE730085C - Process for the polymerization of butadienes in aqueous emulsion : de en
  • FR877838A - Crossing device between a two-pole catenary line for trolleybuses and a catenary line for rail vehicles : en fr
  • US2307280A - Apparatus for applying inserts in pile materials : en
  • US2307265A - Switch mechanism : en
  • US2307041A - Pump of the swash plate type : en
  • DE729814C - Copier : de en
  • DE730033C - Device for dimming off the light phenomena caused by the coke being pressed out on coking plants : de en
  • DE730070C - Method for attaching metal parts to carbon bodies : de en
  • DE730101C - Remote display of angular positions : de en
  • GB550463A - Improvements connected with devices for the removal of plaster casts or bandages : en
  • FR877909A - Lightweight saddle with simplified attachment : en fr
  • GB550340A - Improvements in or relating to thermionic amplifiers : en
  • US2307495A - Process for breaking petroleum emulsions : en
  • US2307545A - Latch keeper : en
  • DE729886C - Spool for subsequent insertion into the cavity of a thread spool : de en
  • DE730149C - Electric arc welding : de en
  • FR877808A - Process for the enrichment of gases produced by gasifiers of motor vehicles : en fr
  • FR877979A - System intended to save fuel in multi-cylinder combustion engines, by eliminating engine work in a certain number of cylinders : en fr
  • CA409836A - Cooking range handle : en fr
  • US2307104A - Signaling device : en
  • US2307360A - Well perforating gun : en
  • US2307327A - Meat loop : en
  • US2307514A - Geared limit switch : en
  • US2307575A - Apparatus for treating continuously sheathed cores : en
  • DE729914C - Electric circuit breakers, in particular switches : de en
  • DE730017C - Process for the preparation of a physiologically highly effective product : de en
  • US2307165A - Refrigeration : en
  • US2307326A - Art of treating sucrose-bearing liquids : en
  • DE730147C - Gas discharge tubes, especially for voltage regulation, with auxiliary discharge path for starting the main discharge : de en
  • US2307135A - Potentiometer : en
  • CA409848A - Optical system : en fr
  • US2307412A - Machine for removing snow : en
  • US2307467A - Signal appliance for telephones : en
  • US2307659A - Bottle carrier : en
  • DE730197C - Method of sterilization : de en
  • DE730254C - Hemispherical headlight cover lens curved outwards : de en
  • DE729941C - Measuring chamber with sight glass for the delivery of the same amount of liquid space related to a certain temperature : de en
  • DE729954C - Above ground water post with a protective cover that can be lowered : de en
  • GB550338A - Improvements relating to delay mechanisms : en
  • US2307438A - Piezoelectric device : en
  • US2307638A - Card punch : en
  • US2307031A - Record changer : en
  • US2307367A - Wringer : en
  • USD134719S - Design for a musical wind instrument : en
  • DE729938C - Suspension for the rear wheel of single-track vehicles : de en
  • GB550377A - Device for holding collars for shirts and the like : en
  • US2307428A - Hobbing machine : en
  • US2307417A - Receiving circuit for signaling systems : en
  • US2307584A - Calculating device : en
  • DE695761C - Ceramic kiln : de en
  • DE730199C - Process for producing threads or fibers from glass : de en
  • DE730156C - Flame protection device for containers for flammable liquids : de en
  • GB550397A - Improvements relating to flexible pipe connections : en
  • US2307061A - Electric water heater : en
  • US2307615A - Lubricating oil composition : en
  • US2307103A - Lasting machine : en
  • US2307528A - Magical apparatus : en
  • FR877908A - Per-compound attached to acetic acid and method of preparing this body : en fr
  • CA409762A - Feeding apparatus for suckling animals : en fr
  • DE730119C - Process for the preparation of tetrahydroisoquinoline compounds : de en
  • FR877818A - Device and method for reinforcing and normally rendering motor vehicle frames unbreakable : en fr
  • FR878010A - Transport trolley : en fr
  • US2307419A - Combined goggles and goggles case : en
  • US2307065A - Process for hydrogenating edible oils : en
  • CA409791A - Jacquard needle control device : en fr
  • DE730043C - Motor vehicle, in particular tractor, with a power generator installed between the engine and gearbox : de en
  • US2307102A - Propeller mechanism : en
  • US2307234A - Concentrated liquid ice cream mix : en
  • US2307387A - Transmission of electrical signals having a direct current component : en
  • DE729857C - Jacketed electric oven : de en
  • DE729882C - Device for the complete chopping of the harder parts of the food in a meat grinder : de en
  • DE730069C - Arrangement for the control of a secondary light radiation by a primary radiation : de en
  • DE730221C - Process for the production of strong, firmly adhering layers containing silver on ceramic bodies : de en
  • US2307729A - Well explosive : en
  • FR877959A - Removable furnace with refractory cement panels and articulated conductor for the carbonization of wood in the forest : en fr
  • US2307446A - Rail fissure detector : en
  • US2307693A - Frequency multiplier : en
  • US2307384A - Wound clip protector : en
  • US2307532A - Reversible rear view mirror : en
  • US2307606A - Freezing tray : en
  • USD134739S - Design for an animal figure : en
  • US2307184A - Ultra short wave beacon : en
  • US2307718A - Circuit breaker : en
  • DE730077C - Process for making laxatives from rhubarb leaves : de en
  • CA409834A - Cyclopropane production : en fr
  • CA409847A - Optical system : en fr
  • CA409842A - Adhesive composition and product : en fr
  • US2307499A - Insulator testing : en
  • US2307554A - Therapeutic vibrator and massage device : en
  • US2307221A - Tentering machine : en
  • US2307274A - Form clamp : en
  • US2307590A - Means for indicating turning movements of a craft : en
  • FR878037A - Process for the production of clichés for printing on the high-speed press : en fr
  • USD134754S - Design for a dress : en
  • USD134745S - Design for a dress : en
  • US2307092A - Stabilized artificial resins : en
  • US2307276A - Stereoscopic projection and observation apparatus : en
  • DE729990C - Headgear, in particular a steel helmet, with a mirror periscope : de en
  • DE729916C - Control device for automatic starting and adjustment of electric motors to speeds that can be set as desired from start-up : de en
  • CA409859A - Telephone system : en fr
  • CA409870A - Ship hydrostatic data determining means : en fr
  • FR877890A - Device intended to demarcate raves, poppies and other plants : en fr
  • DE730214C - Coupling for connecting the breathing hose to the alkaline cartridge of oxygen breathing apparatus : de en
  • US2307701A - Cyclo-hexylidene ethyl cyanoacetate as an insecticide : en
  • US2307489A - Ball bearing shears : en
  • IE16391L - Electric measuring instruments : en
  • DE729999C - Stationary flame cutting machine for cutting according to templates or drawings : de en
  • DE730136C - Contact device for switchgear with lifting contacts : de en
  • DE729904C - Process for the production of hexachlorobenzene : de en
  • DE729984C - System for water rusting of bast fiber stalks : de en
  • DE730084C - Process for the production of cellulose dispersions in concentrated zinc chloride liquor : de en
  • CA409790A - Insulator tie for electric conductors : en fr
  • GB550457A - Differential driving gearing : en
  • GB550473A - Improvements in or relating to barrier transmission systems : en
  • DK60471C - Procedure and apparatus for grinding household waste and similar waste materials. : da en
  • GB550475A - Improvements in coil tube water or other liquid heaters : en
  • US2307678A - Collapsible wall form : en
  • FR877965A - Process for the production of cyclic amidines and synthetic products using these cyclic amidines : en fr
  • DE730111C - Bolt lock for oven doors : de en
  • FR877970A - Balanced amplifier assembly : en fr
  • DK60478C - System for Ignition and Operation of an Electric Discharge Lamp born with AC. : da en
  • DE729787C - Process for the preparation of alkylated aromatic sulfonic acids : de en
  • DE730315C - Shut-off valve, especially gas cylinder valve : de en
  • FR877817A - Carbonization device and method for preparing charcoal : en fr
  • US2307012A - Electromagnetic horn : en
  • US2307218A - Thermionic valve circuit : en
  • US2307272A - Ventilated metal awning : en
  • US2307719A - Hydraulic pump construction : en
  • FR877993A - Improvements in mounting electrodes in discharge tubes and the like : en fr
  • GB550432A - Improvements in ship construction : en
  • FR877984A - Aerial for vehicles with telescopic elements that fit into each other : en fr
  • DE729967C - Manufacturing process for contact banks for dialers in telecommunication systems, especially telephone systems : de en
  • GB550445A - Improvements in or relating to self-locking clinch nuts : en
  • FR878040A - Device for trimming the edge of thin sheet elements : en fr
  • DE730277C - Safety torque wrench : de en
  • GB550428A - Improvements in and relating to control devices for superchargers : en
  • US2307224A - Leakproof applicator closure for dispensing containers : en
  • US2307602A - Electrostatic dust sampler : en
  • US2307083A - Extinguishing composition : en
  • US2307186A - Accounting machine : en
  • FR877944A - Rolling contact electrical switch : en fr
  • DE729893C - Process for the preparation of metal complex compounds of azo dyes : de en
  • FR877905A - Piston ring : en fr
  • FR878019A - Process for the fusion of artificial bodies and in particular high polymers : en fr
  • US2307176A - Geneva gearing : en
  • US2307429A - Water expelling tire assembly : en
  • US2307462A - Plating and cleaning tank unloading device : en
  • US2307691A - Sanitary liquid dispenser : en
  • US2307151A - Speed indicating signal apparatus : en
  • US2307313A - Material distributor : en
  • US2307518A - Dynamic damper counterweight : en
  • DE730115C - Process for the production of osazones : de en
  • FR877803A - Process for the manufacture of solid, endless rubber wires, bands, moldings and other articles : en fr
  • US2307260A - Arc lamp : en
  • US2307372A - Motor vehicle signal device : en
  • US2307469A - Electric razor : en
  • DE729909C - Process for the production of sintered phosphates : de en
  • DE730208C - Feed device for material bars with feed pliers, preferably for high-speed turning machines, revolver turning machines and automatic turning machines : de en
  • DE730300C - Pneumatic signal box for the actuation of stage lighting bodies : de en
  • FR877923A - Process for modifying the surface of materials made of polyamides, polyurethanes, polyesters or other high linear polymers : en fr
  • FR877896A - Conical safety ring for shafts, journals, pipes and the like to be fixed in bores or to be assembled axially : en fr
  • US2307284A - Hoist driving mechanism : en
  • US2307454A - Piano construction : en
  • US2307604A - Inductor-type alternating-current generator : en
  • US2307699A - Bowling footwear : en
  • USD134742S - Motorcycle engine simulating attachment for bicycles : en
  • US2307258A - Push button control station : en
  • US2307085A - Liquid dispensing apparatus : en
  • US2307605A - Magnetic material heat treatment : en
  • FR877811A - Hernial bandage enhancements : en fr
  • FR877856A - Toggle letterbox with automatic lift indicator : en fr
  • FR877877A - Process for the simultaneous preparation of ammonia gas and acetylene : en fr
  • GB550430A - Improvements in wireless signalling devices : en
  • US2307207A - Engine starter : en
  • FR877843A - Electric current switch or switch auxiliary device with back-electromotive force generator : en fr
  • DE730013C - Firing device for preheating, sintering and roasting dusty and gritty material : de en
  • DE730184C - Method for better adaptation of the frequency sub-bands to be made available on the transmission path and the occupancy time to the message content to be transmitted, in particular in the case of voice transmission : de en
  • GB550387A - Improvements relating to electric motor control systems : en
  • GB550396A - Improvements in or relating to yarn winding : en
  • DE729900C - Device for preventing material to be thrown from sticking to peeling knives of centrifugal machines : de en
  • DE729884C - Tool grinding and lapping machine, especially for hard metal tools : de en
  • FR877840A - Gear finishing process : en fr
  • US2307242A - Solvent treating of mineral oils : en
  • US2307079A - Collapsible platform for printing and other apparatus : en
  • US2307338A - Base fitting for interior walls : en
  • CA409843A - Pre-gummed wall paper : en fr
  • CA409756A - Dicyandiamide condensation product : en fr
  • US2307286A - Flower holder : en
  • US2307483A - Waste shaker : en
  • CA409724A - Concrete form or mould : en fr
  • US2307405A - Nut : en
  • US2307089A - Electric welding can body : en
  • US2307214A - Adjustable cam : en
  • US2307292A - Air conditioning system utilizing : en
  • USD134749S - Design fok a dkess : en
  • DE730047C - Method for measuring the length of single or doubled lengths of fabric in laying machines : de en
  • DE730107C - Band filter with fixed coupling coils and adjustable partial winding for bandwidth regulation : de en
  • USD134758S - Design for a combined stand and electeio fan : en
  • US2307298A - Radiator core and method of making the same : en
  • DE730167C - Mercury vapor rectifier with anodes arranged in cranked arms and enclosed by control grids : de en
  • FR877886A - Variable speed motion transmission mechanism : en fr
  • AU520742A - Improvements in internal-combustion engines : en
  • DE730114C - Apparatus for carrying out heat-exchanging reactions : de en
  • USD134761S - Design fob a dkess : en
  • CA409751A - Coating machine : en fr
  • FR877815A - Powder catalyst regeneration process : en fr
  • FR877917A - Focusing viewfinder, particularly intended for cinematographic cameras : en fr
  • US2307368A - Wringer roll stop : en
  • DE729951C - Sliding window with two leaves lying one above the other on one level : de en
  • US2307188A - Television system : en
  • FR877829A - Device automatically dosing the intake air to the mixer of an engine supplied by a gasifier : en fr
  • US2307225A - Coated fabric : en
  • US2307339A - Typewriting machine : en
  • FR877900A - Typewriter striking cylinder : en fr
  • DE723738C - Still with cleaning device : de en
  • US2307121A - Refrigerator cabinet construction : en
  • US2307212A - Picture centering control apparatus : en
  • DE729925C - Knife, especially for cutting endlessly fed strings of artificial threads : de en
  • USD134755S - Design for a dress : en
  • USD134770S - Design for a dress : en
  • DE730086C - Wick cap assembly for lighters : de en
  • DE729994C - Device for keeping constant and regulating the working speed and the load of statically acting material testing machines with hydraulic drive : de en
  • DE729885C - Process and device for the finest finishing of the rounded edges on roller bearing rollers : de en
  • FR878041A - Multicylindrical group composed of two internal combustion engines placed in the axis of one another : en fr
  • GB550446A - Process for the preparation of sulphenamido and sulphonamido derivatives of heterocyclic compounds : en
  • CA409867A - Casement window : en fr
  • DE729847C - Loose-leaf binders with flexible straps, spiral springs or the like. : de en
  • DE730123C - Device for automatic bandwidth control of a receiver : de en
  • FR877839A - Acetylene gas generator : en fr
  • DE729881C - Car bodies, especially for motor vehicles : de en
  • US2307194A - Tile sagger unloading apparatus : en
  • DE722494C - Tilting device for conveyor wagons : de en
  • DE729995C - Device for firing blank shots to keep away and scare away animals : de en
  • DK60477C - Eggshell Reflector. : da en
  • DE730287C - Lining for heat storage, reaction chambers, etc. like : de en
  • US2307356A - Thermal control switch : en
  • US2307535A - Switching apparatus : en
  • GB550469A - Improvements in adjustable surfaces for beds or seats : en
  • DE730067C - Tubular gas discharge lamp with an incandescent electrode that can be heated by means of a current passage and a fluorescent wall coating : de en
  • FR878023A - Continuous casting process of parts : en fr
  • US2307110A - Lock : en
  • DE730007C - Manual operating device for aircraft controls arranged in front of the driver's seat : de en
  • DE730151C - Device for the production of centrifugal castings : de en
  • US2307222A - Machine tool : en
  • US2307442A - Cooling system fob buildings : en
  • US2307612A - High voltage apparatus : en
  • DK60486C - Bicycle carriage. : da en
  • FR877938A - Phone holder : en fr
  • GB550328A - Improvements in ejector magazines for safety razor blades : en
  • FR877980A - Lift wing for airplanes : en fr
  • GB550343A - Improvements in or relating to stock-feed mechanism for lathes or like machine tools : en
  • DE730032C - Pliers : de en
  • FR877859A - Gas compressor : en fr
  • GB550399A - Magnetic repeater or compass : en
  • USD134756S - Design foe a dress : en
  • US2307009A - Discharger for pyrotechnic cartridges : en
  • US2307496A - Folding cot : en
  • US2307099A - High speed telegraph system : en
  • DE729897C - Control device, in particular for fluid-operated power or working machines, for example post-forming milling or drilling machines : de en
  • GB550450A - Improvements in or relating to power brakes : en
  • GB550365A - Improvements in or relating to the drying of parachutes : en
  • US2307235A - Bicycle stand : en
  • CA409746A - Lighting fixture : en fr
  • CA409752A - Sheet feeding device : en fr
  • US2307390A - Handle for bottles : en
  • US2307473A - Tire removing tool : en
  • US2307144A - Book support : en
  • US2307476A - Railway traffic controlling apparatus : en
  • US2307253A - Process for the production of noncaking fertilizer materials : en
  • CA409738A - Pipe union nipple : en fr
  • US2307108A - Printing device : en
  • DE730083C - Connection line for systems for drawing long wood using the juice removal process : de en
  • FR877846A - Improvements to exhaust steam injectors : en fr
  • US2307340A - Friction clutch plate : en
  • US2307696A - Method of applying cold cement glaze : en
  • US2307020A - Method of dispensing and using rubber : en
  • DE730080C - Electric control : de en
  • DE730303C - Process for the preparation of dyes containing oxyalkyl groups : de en
  • DE729943C - Air heating and renewal in vehicles, in particular railway vehicles : de en
  • US2307471A - Shaving implement : en
  • US2307302A - Lamp house : en
  • CA409824A - Facsimile recorder : en fr
  • CA409750A - Strip material handling method : en fr
  • CA409742A - Rotary transmission mechanism : en fr
  • US2307627A - Dry cell and method of making the same : en
  • AU117037B2 - Improvements in internal-combustion engines : en
  • US2307550A - Make-alive electrode and method of making : en
  • US2307050A - Process for the preparation of active carbon black : en
  • US2307127A - Marking stamp : en
  • CA409860A - Coupler for tractor-semi-trailer combinations : en fr
  • US2307655A - Snow and dirt moving attachment for tractors : en
  • US2307142A - Method of and apparatus for superposing and severing webs : en
  • US2307726A - Cardholder : en
  • CA409763A - Pressure tank sprinkler system : en fr
  • FR878039A - Compact and automatic coupling device for motor vehicle trailer : en fr
  • US2307133A - Wire straightener : en
  • US2307062A - Sugar sirup composition : en
  • US2307660A - Indicator : en
  • CA409737A - Casting machine melting pot : en fr
  • GB550415A - A new or improved jig or fixture for profiling grinding wheels, tools and the like : en
  • US2307656A - Nut grading and cracking machine : en
  • DE730026C - Mill combined with a ball crushing mill : de en
  • US2307658A - Well washing tool : en
  • CA409775A - Electric discharge device electrode and terminal : en fr
  • US2307601A - Screening apparatus for liquids : en
  • USD134747S - Design for a dress : en
  • US2307150A - Check endorsing machine : en
  • USD134737S - Design for a handbag : en
  • US2307078A - Process for refining oleoresin : en
  • DE730020C - Process for the production of a base material suitable for chewable tablets : de en
  • US2307491A - Starch conversion process : en
  • CA409733A - Sweep rake : en fr
  • CA409776A - Light relay : en fr
  • USD134732S - Holder for fluorescent lamps and starter switch : en
  • US2307316A - Frequency meter : en
  • US2307544A - Power transmission : en
  • US2307070A - Slug casting machine : en
  • US2307297A - Photographic dissolve device : en
  • US2307117A - Method of continuously making batts, blankets, blocks, and the like : en
  • US2307721A - Machine for cutting beans and other elongated vegetables : en
  • US2307596A - Switchgear : en
  • US2307600A - Heating system : en
  • US2307052A - Circuit control for electric flatirons and connection therefor : en
  • GR10014B - METHOD AND APPLICATION FOR THE CONSTRUCTION OF BEARING BOXES AND CYLINDER AND SIMILAR BOXES. : el en
  • DE730317C - Process for the production of sulphite pulp : de en
  • CA409739A - Lighting column for air fields : en fr
  • CA409764A - Scraper apron control : en fr
  • USD134760S - Design for a dress : en
  • US2307365A - Power generating system : en
  • US2307357A - Signal control : en
  • US2307574A - Reflector basin for luminaires : en
  • US2307331A - Cushion : en
  • US2307646A - Camera : en
  • US2307227A - Cream treatment : en
  • US2307124A - Method of packaging and dispensing fluid substances : en
  • CA409817A - Surface roughness measuring apparatus : en fr
  • US2307578A - Variable-pitch airscrew : en
  • DE730031C - Reciprocating gear for fire control devices : de en
  • DE729920C - Process for the production of frames with lamp bases for electric light bulbs with tempered glass or quartz glass bulbs : de en
  • FR877864A - Emulsion Elevator : en fr
  • FR877942A - Device for low temperature distillation of petroleum rocks : en fr
  • DE730074C - Welding electrode made of carbon with a reduced cross-section at the working end for resistance welding of thin sheets, in particular light metal sheets : de en
  • US2307645A - Ash tray : en
  • FR877825A - Sewing machine lighting fixture : en fr
  • US2307096A - Weighted implement : en
  • DE730202C - Process for the production of coatings and thin molded articles : de en
  • DE730266C - Process for refining objects made of magnesium or magnesium alloys on the surface : de en
  • DE730075C - Process and device for the production of the spinning solution for copper rayon : de en
  • US2307378A - Dispenser for can-contained liquids : en
  • US2307177A - Punching machine : en
  • US2307617A - Statistical cards and means for and method of preparing them : en
  • US2307663A - Vehicle tire lock : en
  • DE729944C - Method for separating line break and line pulses in television : de en
  • US2307193A - Golf club head : en
  • US2307621A - Adjustable chair : en
  • US2307687A - Dolls' eye set : en
  • USD134744S - Design fob a deess : en
  • FR877860A - Device for the electrical control of various machines usually operated by arms : en fr
  • US2307430A - Apparatus for making powder puffs : en
  • FR877918A - Casting mold : en fr
  • DE729992C - Image projector for slides : de en
  • DE730105C - Arrangement for obtaining alternate picture characters for synchronization with television : de en
  • DE730232C - Process for the production of alcoholic beverages from wine : de en
  • FR878001A - Handle for handles of spades, shovels, etc. : en fr
  • US2307650A - Sulphanilamido-amino-pyridines and processes for producing the same : en
  • CA409781A - Generator regulating system : en fr
  • DE730027C - Device on motor vehicles with an exterior shape that is favorable to the flow of air to automatically maintain the direction of travel in cross winds : de en
  • US2307046A - Stripping machine : en
  • US2307635A - Tabulating machine : en
  • US2307716A - Elastic fluid turbine : en
  • FR877878A - Improvement of toilet seats on hygienic bowls : en fr
  • DE729896C - Rotary valve control for internal combustion engines : de en
  • DE729953C - Exchangeable nozzle carrier for the gluing device of labeling machines : de en
  • US2307248A - Measuring instrument : en
  • US2307333A - Press : en
  • US2307581A - Bicycle tail and stop light : en
  • FR877936A - Arrangement for electric adjustment of the frequency or power of generators coupled in parallel coupled with upstream and downstream turbines : en fr
  • GB550358A - Multiple unit filter : en
  • FR877865A - Process for the preparation of fertilizer products : en fr
  • US2307022A - Pulp molding machine and distributing device : en
  • GB550351A - Improvements in or relating to the injection mechanism of die-casting machines : en
  • GB550380A - Improvements relating to air heating apparatus : en
  • DE730246C - Magnetron tubes for the simultaneous generation of two or more frequencies : de en
  • US2307113A - Refrigeration : en
  • US2307525A - Call transmitter : en
  • US2307570A - Fireplace screen : en
  • USD134750S - Design for a dress : en
  • US2307458A - Agitator for washing machines : en
  • US2307580A - Control apparatus : en
  • US2307620A - Control system for industrial vibrating machinery : en
  • US2307039A - Variable pitch propeller controlled by wake : en
  • US2307105A - Calculating machine : en
  • US2307161A - Color photography : en
  • US2307230A - Electricity conductor unit : en
  • US2307632A - Segmental grinding wheel : en
  • DE730015C - Process for mercerizing : de en
  • DE730194C - Rotating regenerative preheater : de en
  • US2307576A - Relay system : en
  • US2307587A - Insulating material : en
  • US2307335A - Method of making vehicle wheels : en
  • US2307579A - Method of attaching strip contact material to switch members : en
  • CA409815A - Sanitary napkin : en fr
  • DE729863C - Cutting and broaching tools on trench excavators for creating the narrowest trenches with vertical walls : de en
  • US2307019A - Coolant control for cutoff machines : en
  • DE730146C - Process for the production of asymmetrically conductive systems, in particular dry rectifiers : de en
  • FR877995A - Improvements in the construction of reflectors, mirrors, and all metallic coated objects : en fr
  • US2307661A - Electro-optical method and apparatus : en
  • US2307431A - Power driven abrading device : en
  • CA409771A - Piston ring : en fr
  • DE729864C - Draen line : de en
  • DE729962C - Process for the production of higher molecular weight fatty acids : de en
  • FR878012A - Three-axle bogie for vehicles, in particular for trams : en fr
  • US2307639A - Method of making felted sheets : en
  • FR878013A - Sophisticated bed base : en fr
  • GB550470A - Improvements in geophysical instruments : en
  • DE730313C - Hot water pump heating system : de en
  • FR877835A - Airtight closing capsule lined with any malleable and compressible material : en fr
  • CA409862A - Fastener slider lock : en fr
  • DE729717C - Process for the production of sulfuric acid esters of higher molecular weight secondary alcohols : de en
  • DE730090C - Elastic coupling with a plurality of resilient lamellar elements arranged radially : de en
  • FR877891A - Process for the preparation, improvement and regeneration of polymerized rubber-based hydrocarbon mixtures : en fr
  • GB550398A - Improvements in or relating to bullet-resisting screen assemblies for aircraft or other vessels : en
  • FR877842A - Process for the treatment of kaolins, clays and the like, in particular with a view to their use in soap : en fr
  • US2307195A - Piston ring applicator : en
  • CA409851A - Telegraph tape transmitter : en fr
  • US2307204A - Electric windshield wiper : en
  • US2307307A - Extreme pressure lubricant : en
  • CA409785A - Substituted gluoxalidine : en fr
  • DE730226C - Process for the preparation of higher molecular weight acetals substituted with sulfuric acid ester groups : de en
  • FR877920A - Control device for pressurized oil lines : en fr
  • GB550376A - Improvements in and relating to the transmission of picture : en
  • CA409846A - Drilling apparatus : en fr
  • US2307063A - Burner assembly : en
  • US2307626A - Resistance thermometer : en
  • USPP564P - martin : en
  • DE730271C - Air suspension for heavy vehicles : de en
  • DE730021C - Dust binders : de en
  • GB550412A - Improvements in or relating to machines for moulding butter and other substances : en
  • CA409749A - Photo-electric vacuum tube amplifier : en fr
  • DE730179C - Process for the production of nitriles : de en
  • FR877932A - Liquid regulator for internal combustion engines : en fr
  • GB550385A - Improvements in or relating to devices for indicating strain : en
  • DE729983C - Gas or vapor-filled electrical discharge vessel : de en
  • DE729811C - Single-spindle, automatic lathe with a turret head that can be moved lengthways by means of control cams : de en
  • DE730142C - Device for fastening the stand housing of large electrical machines on their foundation frame : de en
  • DE729987C - Suspension device for curtains : de en
  • FR878032A - New process for manufacturing sulfuric acid by catalysis : en fr
  • GB550405A - Circuits for grid controlled gas-filled electron tubes : en
  • US2307037A - Process for plasticizing synthetic rubberlike materials : en
  • USD134734S - Design for a bottle : en
  • DE729872C - Light metal pistons for internal combustion engines : de en
  • US2307058A - Breaking agent for emulsions : en
  • US2307241A - Portable cup assembly : en
  • DE729905C - Process for the production of cocarboxylase concentrate or of pure cocarboxylase : de en
  • DE729924C - Temperature responsive control device : de en
  • DE730215C - Jacket or jacket-like protective clothing : de en
  • CA409721A - Vent plug : en fr
  • US2307561A - Terminal construction for electrical devices : en
  • DE730263C - Device for cutting branches : de en
  • DE729899C - Process for the production of bowls to be processed into cartridge cases or bullet sleeves : de en
  • DE730124C - Crystal bridge filter with adjustable bandwidth : de en
  • CA409748A - Printing machine : en fr
  • US2307051A - Copper alloy : en
  • US2307490A - Ventilator : en
  • CA409863A - Dual action thermostat : en fr
  • US2307073A - Fishing tackle box : en
  • FR877922A - Film reel store : en fr
  • GB550367A - Oil filler pipes for the sumps of internal combustion engines : en
  • DE730063C - Contact adjustment device for multi-pole switchgear : de en
  • DE730283C - Circuit arrangement for the operation of wireless receivers with a natural wave of the antenna circuit either above or below the operating wave range : de en
  • DE730044C - Method and device for the production of a draftable sliver from a synthetic thread band : de en
  • FR877827A - Device intended for installations with an engine powered by a gasifier : en fr
  • GB550435A - Improvements in or relating to electric discharge tubes : en
  • GB550395A - Improved coin inlet mechanism for use on prepayment apparatus, more especially for electricity or gas : en
  • DE729883C - Device for grinding mold bars with uneven curvature on at least one of the long sides : de en
  • FR877895A - Fully automatic machine for the production of zippers : en fr
  • FR877897A - Process for the manufacture of wooden soles : en fr
  • FR877929A - Latch retainer with half-turn of a lock while the door is open : en fr
  • DE729989C - Hand tool for debarking felled tree trunks : de en
  • DE730206C - Switching device for friction disc clutches : de en
  • FR877816A - Device for making it possible to bring the load of each of the wagons that make it up successively onto any wagon of a train : en fr
  • FR877883A - Product for high frequency cores, high frequency cores and their manufacturing process : en fr
  • CA409833A - Immersion heater : en fr
  • FR877966A - Process for the production of hydrogen peroxide : en fr
  • FR877823A - Acetylene gas generator : en fr
  • DE729837C - Process for the production of oxidic surface layers on objects made of magnesium : de en
  • DE730120C - Process for the preparation of sulfonamide compounds : de en
  • US2307436A - Spring tooth harrow : en
  • US2307029A - Reciprocal position indicator and televisor for vessels : en
  • US2307185A - Manufacture of the cap portions of typographical slug casting molds : en
  • US2307522A - Bright-finish metal-treating furnace : en
  • USD134727S - Design tor a desk : en
  • DE730291C - Process for the pressure hydrogenation of coals, tars, mineral oils or similar substances : de en
  • DE729917C - An electric machine built into an underwater power plant with rotating poles carried by the turbine or pump impeller rim : de en
  • US2307231A - Heating tape : en
  • FR877881A - Process for collecting the pure gases formed during the production of activated carbon : en fr
  • FR877947A - Tank to be dyed off : en fr
  • US2307418A - modonald : en
  • US2307304A - Flow controlled switch : en
  • US2307090A - Stabilized vinyl resins : en
  • DE729858C - Carrier phase for solid or cream-like emulsions : de en
  • US2307086A - High frequency electrical apparatus : en
  • US2307681A - Hoisting apparatus : en
  • US2307208A - Repeater fuse switch : en
  • US2307493A - Toothbrush : en
  • US2307670A - Cushion-type spring weight control : en
  • US2307705A - Alpha-nu-amyl cinnamal ethyl cyanoacetate as a pest-control agent : en
  • DE730059C - Device for the generation of ultrashort-wave oscillations with a transverse field that is fed back by electron flow : de en
  • US2307625A - Chemical process for dezincking galvanized scrap : en
  • US2307013A - Method and apparatus for producing dry ice : en
  • US2307449A - Pipe cleaning machine : en
  • DE730195C - Transport device for evenly loading cleaning containers with cleaning compound : de en
  • US2307517A - Glassware handling mechanism : en
  • CA409732A - Vacuum bottle closure : en fr
  • GB550401A - Improvements in or relating to structures built up of plywood or other light-weight laminated material : en
  • US2307593A - Pattern and guide strip : en
  • DE730177C - Process for the continuous production of selenium-free hydrochloric acid : de en
  • DE730097C - Method for attaching an edge protection plate to wooden propellers : de en
  • US2307210A - Television system : en
  • US2307538A - Vacuum cleaner : en
  • US2307613A - Coating metal sheets : en
  • FR877973A - Improvements made to lock nuts : en fr
  • US2307426A - Automatic slow-up and stop mechanism : en
  • DE730126C - DF device with automatic consideration of the empirically determined radio feed : de en
  • US2307183A - Extreme pressure lubricant : en
  • US2307152A - Packing device for rotatable or reciprocable elements : en
  • DE730264C - Device for sprinkling garden beds : de en
  • DE729524C - Electromagnetic direction indicator with bevel arm that swings up and down in the display position : de en
  • DE730219C - Process for the production of lacquered, seamlessly pressed molded bodies : de en
  • US2307259A - Phonographic reproducing device : en
  • US2307017A - Photographic developing tray : en
  • US2307203A - Bell ringing mechanism : en
  • US2307407A - Abrading machine : en
  • US2307531A - Electric discharge apparatus : en
  • US2307542A - Interlock for elevator doors : en
  • DE730153C - Device for supporting scaffolding, building parts u. like : de en
  • US2307126A - Steel house construction : en
  • DE730041C - Device to compensate for the backlash in the drive of the workpiece slide on a machine for grinding the tooth flanks of worm-shaped workpieces, e.g. Gear hobbing mills : de en
  • DE730130C - Linear antenna variable in length : de en
  • USD134731S - Design for a textile fabric : en
  • CA409740A - Lifting grab : en fr
  • US2307555A - Moistening means for duplicating machines : en
  • CA409755A - Sulphonamide compound in oil : en fr
  • US2307171A - System and apparatus for flowing wells : en
  • CA409807A - Torsion rod mounting : en fr
  • CA409868A - Spectacles lens : en fr
  • US2307364A - Electrical starting and generating system : en
  • CA409782A - Electric valve circuit : en fr
  • CA409865A - Sheet material manufacture : en fr
  • DE729611C - High-speed typewriter : de en
  • FR878036A - Process for the production of sound films and sound and picture films, containing silver and dye sound tracks : en fr
  • DK60475C - Device for Vacuum Switches or Vacuum Relays with Multiple Contact Pulls to Prevent Overflow. : da en
  • US2307317A - Means for obtaining relative movement of aircraft parts : en
  • US2307564A - Machine for making hollow glass articles : en
  • USD134738S - Zenner etal printing telegraph cabinet unit : en
  • DE730304C - Paints : de en
  • US2307027A - Shielded radio tube : en
  • US2307042A - Cooling of combustion turbine plants : en
  • US2307053A - Isomerization of n-paraffin : en
  • US2307487A - Recorder : en
  • US2307585A - Power transmission : en
  • US2307296A - Orchestral apparatus : en
  • US2307346A - Stuffing box : en
  • US2307395A - Flexible tape : en
  • CA409845A - Pre-gummed wall paper : en fr
  • US2307246A - Electromagnetically driven diaphragm pump for liquids : en
  • US2307595A - Switch : en
  • US2307026A - Subaqueous end welding device : en
  • CA409864A - High speed motor-boat : en fr
  • US2307045A - Process of producing water-repellent polysaccharides and product : en
  • US2307125A - Launching apparatus for rocket craft : en
  • US2307451A - Hydraulic pump with mechanically actuated intake valve : en
  • CA409804A - Cabinet supporting structure : en fr
  • DE730297C - Device for remote control of a setting device, in particular for the tuning means of a transmitter or receiver : de en
  • GB550359A - Improvements in and relating to methods of and apparatus for manufacturing commutators for small dynamo electric machines : en
  • DE729891C - Process for the production of formaldehyde which is soluble, pasty or solid in water : de en
  • DE730000C - Process for the production of a wrought-iron abutment block for suspension springs for rail vehicles : de en
  • GB550409A - Improvements in or relating to electric signalling systems : en
  • CA409844A - Pre-gummed wall paper : en fr
  • CA409717A - Suspensory : en fr
  • US2307707A - Signal flare : en
  • US2307132A - Fastener device : en
  • US2307386A - Liner for bearings for polishing wheels and the like : en
  • US2307506A - Hydraulic coupling : en
  • DE730008C - Device for preventing the formation of ice on trim parts, in particular of aircraft : de en
  • US2307262A - Can cover replacer : en
  • US2307526A - Device for sharpening lawn mowers : en
  • US2307164A - Typewriting machine : en
  • US2307551A - Method of producing a white, platinumlike color chromium plate and the product thereof and bath therefor : en
  • US2307016A - Differential stage lift flow device, diaphragm type : en
  • US2307201A - Seat construction : en
  • CA409780A - Cooling system for vapour lamps : en fr
  • US2307182A - Golf ball : en
  • US2307300A - Oil cooler for engines : en
  • US2307303A - Dry shaver : en
  • CA409769A - Superheated vapour separating process : en fr
  • CA409811A - Liquid treating apparatus : en fr
  • US2307342A - Self-molding counter : en
  • CA409799A - Latch : en fr
  • CA409713A - Poppet valve and valve seat for an internal combustion engine : en fr
  • FR877925A - Photographic camera with extendable lens tube and electric light meter mounted inside the camera : en fr
  • FR877898A - Closure for shutters or detachable or folding elements forming a shutter provided in the exterior cladding of vehicles and in particular of aircraft and the like : en fr
  • GB550333A - Improvements in electric soldering irons and like heating irons : en
  • CA409813A - Absorbent dressing : en fr
  • US2307704A - Benzal octyl cyanoacetate as a pest-control agent : en
  • DE730310C - Process for the production of thread-like and film-like structures from high polymers : de en
  • US2307676A - Fluid transmission and clutch control : en
  • US2307324A - Drainage apparatus : en
  • US2307180A - Vinyl resin phonograph records : en
  • US2307358A - Means for copying pictures : en
  • US2307330A - Pressure control apparatus : en
  • US2307301A - Spot lamp : en
  • US2307329A - Radio control system : en
  • DE729695C - Arrangement for determining the forces occurring in model tests in wind channels : de en
  • DE730104C - Pliers : de en
  • FR877972A - Process for obtaining vanadic acid containing iron and free from alkali or low in alkali : en fr
  • CA409832A - Sheet glass drawing apparatus : en fr
  • US2307166A - rainer : en
  • CA409773A - Thymol making method : en fr
  • CA409783A - Tap-changing switch control system : en fr
  • FR877952A - Improvements made to the assembly of tubes, such as cycle frames and others : en fr
  • US2307624A - Method of making organic thionitrates : en
  • CA409734A - Wood stave conduit : en fr
  • DK60476C - Carbon grinding for electrical Machines and Appliances. : da en
  • US2307030A - Phonographic apparatus : en
  • CA409731A - Syphonic milk skimmer : en fr
  • US2307254A - Cleaning machine : en
  • US2307541A - Garment placket : en
  • DE730129C - Device for the automatic determination of the bearing direction : de en
  • GB550323A - An improved method and apparatus for the quantitative analysis of a mixture of gases : en
  • US2307155A - Polarized relay : en
  • US2307711A - Slide fastener : en
  • DE729927C - Bottle rack with tiered shelves : de en
  • FR877851A - Acoustic alarm device : en fr
  • GB550420A - Improvements in method of making bearings : en
  • FR878007A - Switch or switch device controlled by the level of liquid in a tank : en fr
  • GR10016B - ELECTROLYTES BY THE REPLACEMENT OF GASOLINE IN THE ENGINE WITH WATER IS ACHIEVED. : el en
  • DE729915C - Electric circuit breaker with arc extinguishing by a pressure medium : de en
  • DE730039C - Radiators for aircraft and motor vehicles : de en
  • DE730217C - Process for the production of a stopper made of wood or a wood substitute with a head and an elastic cover : de en
  • FR877841A - Improvements to exhaust steam injectors : en fr
  • FR877946A - Process for obtaining electroplating deposits on aluminum alloys from acid baths : en fr
  • US2307409A - Draft connection : en
  • US2307494A - Process for breaking petroleum emulsions : en
  • US2307033A - Printing mechanism : en
  • US2307347A - Automatic bread toaster : en
  • GB550382A - Manifolding machine : en
  • GB550425A - Temperature compensators for pressure actuated indicators : en
  • CA409796A - Ore processing : en fr
  • DE730042C - Purely hydraulic pressure medium control for work machines, especially thread milling machines : de en
  • DE730148C - Ion relay tubes : de en
  • US2307249A - Television device : en
  • US2307472A - Tow bar for trailers : en
  • CA409794A - Compressed air intensifier : en fr
  • DE729870C - Growing strips for plants : de en
  • DE729895C - Fuel additive : de en
  • DE729963C - Process for the production of sulfonic acids from higher molecular weight esters : de en
  • DE729838C - Device for clamping workpieces against a machine table by means of compressed air or pressure fluid : de en
  • DE730178C - Process for the production of water glass by leaching the soda ash obtained during the post-treatment of pig iron with soda : de en
  • DE729930C - Self adjusting camp : de en
  • FR877849A - REDUCTION VALVE : en fr
  • FR877941A - Cylinder for working with plastics, rubber, etc. : en fr
  • DE730155C - Automatic firearm with fixed barrel and semi-rigid lock : de en
  • US2307509A - Means for mixing and distributing fluids : en
  • DE729852C - Process for the preparation of 2,4-dioxooxazolidines : de en
  • DE730154C - Mobile tub for draining and filling fluids, especially motor oil : de en
  • US2307461A - Sheeted abrasive : en
  • DE730019C - Thermal battery with a zigzag-shaped band consisting of alternating wires of different metals as a thermocouple winding, preferably to be placed on a burner : de en
  • GB550355A - Improved apparatus for cleaning fluid heaters such as boilers : en
  • GB550374A - Improvements in and relating to reactors or like electric induction apparatus : en
  • US2307353A - Elevator : en
  • US2307273A - Balanced valve : en
  • GB550423A - Improvements in or relating to suction cleaners : en
  • GB550335A - Improvements in remote control installations : en
  • US2307683A - Folding crate : en
  • US2307556A - Drive mechanism for sludge collectors : en
  • US2307723A - Heating system : en
  • US2307406A - Method of applying sealing strips : en
  • US2307455A - Gum inhibitor : en
  • US2307537A - Telephone call transmitter : en
  • GB550429A - Improvements in the manufacture of lubricating grease : en
  • GB550447A - Improvements in and relating to pressure-operated switches for indicating and controlling gas pressure : en
  • FR877985A - Automatic device making it impossible to refill bottles, cans and similar containers : en fr
  • US2307425A - Apparatus for manufacturing glassware : en
  • DE729948C - Method and device for determining the altitude of an aircraft above the ground : de en
  • DE729986C - Vaginal irrigation device : de en
  • DE730035C - Rotogravure printing machine with a swiveling doctor blade device : de en
  • DE730236C - Process for the catalytic decomposition of diphenyl ether to phenol : de en
  • DE730286C - Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit : de en
  • FR877863A - Improvements to pneumatic tools : en fr
  • US2307563A - Glass mold operating mechanism : en
  • US2307628A - Valve mechanism : en
  • US2307731A - Control device : en
  • DE729758C - Process for the preparation of hydrogenation products of the follicular hormone series : de en
  • DE729856C - Circuit arrangement for pulse reception or pulse transmission : de en
  • FR877935A - Desk lamp with mirror surrounding the lamp and exterior reflector : en fr
  • FR878002A - System for transmitting news, mainly television broadcasts, for reception by any number of interested parties : en fr
  • FR878022A - Protective device and presser for spinning tops : en fr
  • US2307321A - Draft gear : en
  • CA409772A - Trim strip for vehicle bodies : en fr
  • DE730305C - Process for coloring organic solvents, oils, fats, waxes : de en
  • GB550362A - Improvements in or relating to microphones : en
  • US2307198A - Adhesive : en
  • US2307344A - Electrical heating : en
  • US2307728A - Signaling system : en
  • DE729880C - Speed change gear for motor vehicles : de en
  • US2307485A - Portland cement compositions : en
  • US2307539A - Centrifugal device : en
  • FR877821A - Process for the production of ketones twice unsaturated in the alpha, beta position; gamma, ddta : en fr
  • DE729848C - Process for the production of drying oils : de en
  • USD134748S - Design foe a deess : en
  • CA409823A - Facsimile system : en fr
  • CA409855A - Tube shaping apparatus : en fr
  • DE730198C - Process for the production of objects from silicon-containing aluminum alloys : de en
  • US2307264A - Printing-surface selector control : en
  • DE729854C - Steam power plant : de en
  • DE729913C - Electric gas switch : de en
  • US2307215A - Building structure : en
  • US2307217A - Voltage regulation compensator : en
  • US2307318A - Sediment tester : en
  • DE730122C - Method for refreshing color ribbons : de en
  • US2307111A - Valve for bags : en
  • FR877977A - Improvements in the manufacture of hollow containers for packaging, also applicable to the manufacture of wood-fuel stoves : en fr
  • US2307392A - Valve handwheel : en
  • US2307459A - Metallurgical process : en
  • US2307443A - Valve : en
  • US2307456A - Assembly for driving clutches and the like and method of making the same : en
  • DE730272C - Car bodies, especially for motor vehicles : de en
  • DK60482C - Portable Lifting Equipment, In particular for Motor Vehicles. : da en
  • US2307453A - Clarification of murky solutions, particularly those resulting from alkaline extraction of vegetable protein products : en
  • DE730174C - Process for the production of colorings and prints with pigments on fiber materials : de en
  • DK60480C - Herd for Gas Generators. : da en
  • DE729950C - Floats for planes : de en
  • DE729910C - Process for the production of soil improvers and fertilizers : de en
  • US2307619A - Power device : en
  • CA409774A - Electric heater : en fr
  • FR878047A - Process for improving the operation of gasifiers : en fr
  • FR878016A - Quick electrical connection system applicable in particular to connections for electroculture networks : en fr
  • GB550352A - Improvements in or relating to ejector mechanism associated with the dies of die-casting machines : en
  • GB550345A - Improved tooth powder or paste for cleaning dentures : en