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US Patent 2600290: Process for quench-hardening steel
US Patent 2600291: Rotatable drum pressing and ply turning device
US Patent 2600292: Frequency discriminator circuit
US Patent 2600294: Baking chamber

US Patent 2600295: Photoengraving equipment
US Patent 2600298: Rack
US Patent 2600299: Trap tank
US Patent 2600300: Biased balling bag
US Patent 2600301: N-substituted-beta halo-ethyl amines
US Patent 2600302: Air cleaning intake for gas turbines and other internal-combustion engines
US Patent 2600303: Current-limiting speed control apparatus
US Patent 2600304: Substitute unit for circuit testing and grounding
US Patent 2600305: Electrical protective device
US Patent 2600306: Kiln for heat-treating materials
US Patent 2600307: Method of making methyl-substituted disiloxane diols
US Patent 2600308: Speed-regulating control system
US Patent 2600309: Flow-responsive electrical switch means
US Patent 2600310: Piston packing ring
US Patent 2600311: Lock structure for coin savings banks
US Patent 2600312: Commutator for dynamoelectric machines
US Patent 2600313: Temperature regulating system
US Patent 2600315: Voltage control system
US Patent 2600316: Air conditioner
US Patent 2600317: Stabilized control circuit
US Patent 2600320: Two-power electric locomotive
US Patent 2600321: Self-lubricated plastics
US Patent 2600322: Apparatus for affixing conducting tap straps to paper mounting strips
US Patent 2600323: Automatic cutter sharpening machine
US Patent 2600324: Fluid pressure measuring apparatus
US Patent 2600325: Enclosed oscillating fan
US Patent 2600327: Power-actuated rotary tool
US Patent 2600328: Separation of acidic constituents from gases
US Patent 2600330: Fusible means for securing instrument parts during shipment
US Patent 2600331: Disk harrow angling mechanism
US Patent 2600332: Rotary hoe wheel
US Patent 2600334: Snubber
US Patent 2600337: Electronic sequence timer
US Patent 2600342: Alternating current measurement bridge
US Patent 2600343: Method of making conductive patterns
US Patent 2600344: Androgenic composition
US Patent 2600346: Line spacing platen for flat-bed typewriting machines
US Patent 2600348: Two-stage hydraulic control valve
US Patent 2600349: Die holder cap
US Patent 2600350: Bolt for locks
US Patent 2600351: Volatilization of tin values of tin ores
US Patent 2600352: Bright zinc electroplating
US Patent 2600353: Vibration isolator
US Patent 2600355: Bottom expander
US Patent 2600356: Sheet feeder
US Patent 2600357: Apparatus for closing dump car doors
US Patent 2600358: Method of surfacing metal objects
US Patent 2600361: Prevention of foaming in steam generation
US Patent 2600364: Condensation products of benzanthrone-bz-carboxylic acid chloride and fluoranthene
US Patent 2600365: Weft detector for looms
US Patent 2600366: Liquid level control mechanism
US Patent 2600367: Capsule drying and burnishing method
US Patent 2600368: Charge forming device
US Patent 2600369: Knitting machine
US Patent 2600371: Cable connector
US Patent 2600372: Centrifugal separator
US Patent 2600373: Semiconductor translating device
US Patent 2600375: Amino-coumarin-sulfonates
US Patent 2600376: Polmesters of hydroxybenzoic acids
US Patent 2600377: Process for the preparation of sulfonated copper phthalocyanine dye
US Patent 2600378: Preparation of tetraethyl pyrophosphate
US Patent 2600379: Supported group viii-carbon dehydrogenation catalyst
US Patent 2600380: Polymethine dyestuffs
US Patent 2600381: Butter coloring tablet and method of coloring butter
US Patent 2600382: Vinyl stearate allyl laurate copolymer
US Patent 2600383: Copolymers from allyl esters and methacrylic esters
US Patent 2600384: Vinyl ester copolymers
US Patent 2600385: Vinyl ester copolymers
US Patent 2600386: Maleate-vinyl laurate copolymers
US Patent 2600387: Carboxyalkylation of ketonic compounds
US Patent 2600389: Three-stage propane fractionation of reduced crude oil
US Patent 2600390: Low-capacity vapor-electric device
US Patent 2600391: Machine for filling liquids in containers in vacuum
US Patent 2600393: Method and machinery for making bottle caps
US Patent 2600399: Catalytic reduction of carbon monoxide with hydrogen
US Patent 2600401: Reciprocating hearth mechanism
US Patent 2600403: Partially hydrogenated furfuraldehyde-ketone reaction products thickened under acidic conditions
US Patent 2600404: Treatment of well-drilling fluids
US Patent 2600407: Protective device
US Patent 2600408: Fluxing apparatus
US Patent 2600409: Inking ribbon spool
US Patent 2600415: Water-soluble surface active agents from olefin polymers
US Patent 2600416: Drive mechanism
US Patent 2600417: Combined rope thimble and clamp
US Patent 2600419: Oil-soluble allyl copolymers
US Patent 2600420: Oil-soluble allyl-vinyl ester copolymers
US Patent 2600421: Copolymers of acrylates and allyl esters
US Patent 2600422: Maleate-methacrylate copolymers
US Patent 2600423: Electrical system with output signal varying logarithmically with respect to the input signal
US Patent 2600425: Furnace reactor
US Patent 2600426: Fountain pen point
US Patent 2600427: Trimming machine
US Patent 2600430: Conversion of carbonaceous materials
US Patent 2600433: Bearing assembly and seal
US Patent 2600434: Sealing device
US Patent 2600441: Method of manual door operation of vertically movable doors
US Patent 2600442: Method and apparatus for changing the relative lengths of the intermediate and edge portions of metal strips
US Patent 2600443: Coin controlled change maker
US Patent 2600446: Copolymers of methacrylates and allyl esters
US Patent 2600447: Copolymers of allyl esters and maleates
US Patent 2600448: Copolymers from allyl esters and acrylic esters
US Patent 2600449: Maleic acrylic copolymers
US Patent 2600450: Copolymers of acrylic and vinyl esters
US Patent 2600451: Copolymers of methacrylic and vinyl esters
US Patent 2600452: Catalytic improvement of hydrocarbon synthesis product
US Patent 2600454: Resinous materials from 1, 2-dimethylenecyclohexanes
US Patent 2600455: Fire-retardant compositions
US Patent 2600457: Copolymers of fatty oil modified polyesters and vinyl monomers
US Patent 2600460: Tile arch structure
US Patent 2600463: Method for correcting electronic optical systems
US Patent 2600465: Method of oxidizing acidic sulfur compounds of the type which occur in hydrocarbon oil
US Patent 2600466: Wave guide attenuator
US Patent 2600469: Exposure apparatus for photographic contact printing on rotary cylinders
US Patent 2600470: Automatic exposure apparatus for making photographic prints
US Patent 2600473: Magnetic core
US Patent 2600476: Coercing means for gyroscopes
US Patent 2600477: Proportioning pump
US Patent 2600480: Filter unit
US Patent 2600481: Grinding fixture for welded tubing
US Patent 2600482: Electric delay circuit
US Patent 2600484: Apparatus for indicating a coordinate position on a chart
US Patent 2600487: Siftproof bag bottom
US Patent 2600490: Glass melting method
US Patent 2600491: Electron discharge tube apparatus
US Patent 2600494: Low-temperature separation process
US Patent 2600497: Line blind construction
US Patent 2600498: Device for gauging recess diameters
US Patent 2600499: Swinging gate valve mechanism
US Patent 2600500: Semiconductor signal translating device with controlled carrier transit times
US Patent 2600502: Calling line and private branch exchange line identifier
US Patent 2600504: Forming paper from modified calcium alginate fibers
US Patent 2600505: Layout board for photographic reproduction
US Patent 2600506: Metallic insert for pneumatic tires
US Patent 2600507: Apparatus for use in the attachment of heels to shoes
US Patent 2600509: Traveling wave tube
US Patent 2600513: Testing pedestal for radar antenna
US Patent 2600519: Sequence control circuit and timer
US Patent 2600520: Friction disk separator for double disk clutches
US Patent 2600521: Inlet fixture for liquid tanks
US Patent 2600522: Stemmed cherry mold
US Patent 2600525: Cellular glass of increased durability
US Patent 2600526: Rechargeable dry cell battery
US Patent 2600527: Wing slat operating mechanism
US Patent 2600528: Apparatus for elevating contact material
US Patent 2600529: Engine cylinder construction for cooling valve seat inserts
US Patent 2600530: Packing machine for powder materials
US Patent 2600531: Rotary wing aircraft
US Patent 2600532: Method for manufacture of cereal food products
US Patent 2600533: Memorandum pad unit
US Patent 2600534: Method of making coiled wire for use in antiskid pneumatic tire treads
US Patent 2600537: Recovery of deashed oil and naphthenic acids from residuum stocks
US Patent 2600538: Handling apparatus for hollow coils and the like
US Patent 2600539: Method for producing salts of d-tubocurarine
US Patent 2600540: Power-operated disinfecting pruning shears
US Patent 2600541: Utensil washing machine
US Patent 2600542: Movable device for driving piles and the like
US Patent 2600543: Zigzag sewing machine
US Patent 2600544: Means for the control of the feeding mechanism in sewing machines
US Patent 2600545: Stringed musical instrument
US Patent 2600546: Inductance type pick-off
US Patent 2600547: Barber's auxiliary seat
US Patent 2600548: Grinding wheel truing apparatus
US Patent 2600549: Apparatus for tensioning studs
US Patent 2600550: Taper control indicator
US Patent 2600552: Flywheel system
US Patent 2600555: Drive shaft assembly for rotary well-drilling apparatus
US Patent 2600559: Mold for casting printers' rules, leads, and the like
US Patent 2600560: Static frequency changer
US Patent 2600561: Pulse modulation system
US Patent 2600562: Variable ratio transmission
US Patent 2600564: Snap action device
US Patent 2600565: Apparatus for treating sound tracks of color film
US Patent 2600567: Electrical conductors and method of making the same
US Patent 2600568: Motor control circuits
US Patent 2600569: Method for making marshmallow
US Patent 2600571: Butadiene-cobalt carbonyl hydride adduct
US Patent 2600575: Treatment of molten metal
US Patent 2600576: Sanitary napkin
US Patent 2600577: Up-ender
US Patent 2600579: Method of making phosphor screens
US Patent 2600580: Electrophotographic apparatus
US Patent 2600582: Sliding contact system for conducting welding currents
US Patent 2600583: Scanning means
US Patent 2600584: Work clamp
US Patent 2600585: Three-phase welding system with postheat control
US Patent 2600587: Elevating and lowering device for baling presses and the like
US Patent 2600592: Variable-speed transmission
US Patent 2600593: Coating compositions
US Patent 2600595: Heat exchanger
US Patent 2600596: N-carboanhydrides of beta-amino acids of at least four carbons having nonaromatic, only singly bonded alpha carbon
US Patent 2600598: Drawer suspension
US Patent 2600601: Tensioning device for film reel shafts
US Patent 2600602: Livestock sprayer
US Patent 2600606: Water-soluble derivatives of unsulfonated lignin
US Patent 2600609: Closure actuated mechanical alarm
US Patent 2600612: Aircraft power control system
US Patent 2600613: Abrasive head
US Patent 2600616: Heater and thermostat selector shield therefor
US Patent 2600617: Adjustable crowfoot wrench
US Patent 2600618: Magnetic unloader and pressure switch
US Patent 2600621: Obtaining purified phenols and cresols of petroleum origin
US Patent 2600622: Windshield cleaner drive
US Patent 2600623: Modified alkyd resin reacted with styrene and an acrylonitrile
US Patent 2600624: Hair-waving composition
US Patent 2600625: Log supporting and log manipulating device for wood debarking devices
US Patent 2600628: Sheet rolling machine
US Patent 2600629: Fishing rod joint
US Patent 2600632: Variable capacity vane-type rotary pump including automatic means for maintaining uniform delivery
US Patent 2600633: Constant volume variable speed driven vane pump
US Patent 2600634: Prefolded diaper
US Patent 2600635: Hosiery mending machine
US Patent 2600638: Wash plug
US Patent 2600639: Voltage regulating system
US Patent 2600640: Mining machine
US Patent 2600641: Seed treating machine
US Patent 2600647: Finger magnet device
US Patent 2600648: Relay registering system
US Patent 2600649: Process for producing crystal violet
US Patent 2600651: Chaser mounting
US Patent 2600652: Control switch
US Patent 2600653: Iron stand
US Patent 2600654: Chromic oxide-cadmium chloridecadmium oxide catalyst
US Patent 2600655: Chromium oxide-tungsten oxide-iron oxide gel catalyst
US Patent 2600656: Support for oven burner assemblies
US Patent 2600658: Shaver structure
US Patent 2600660: Manually and automatically operated valve
US Patent 2600661: Spraying valve structure
US Patent 2600662: Multilenticular collimating gun sight device and optical system
US Patent 2600663: Driven steering wheel assembly for coal loaders
US Patent 2600667: Automatic stop control for looms
US Patent 2600668: Insecticidal composition comprising ddt, pyrethrins, and piperonyl butoxide
US Patent 2600671: Hydrofluoric acid refining of hydrocarbon oils
US Patent 2600673: Fishing lure
US Patent 2600676: Electromechanical automatic elevator control
US Patent 2600679: Process for copolymerizing conjugated dienes with unsaturated nitriles in aqueous emulsion
US Patent 2600680: Process for copolymerizing conjugated dienes with unsaturated esters in aqueous emulsion
US Patent 2600681: Self-supporting films from polyvinyl halide latex
US Patent 2600682: Loom
US Patent 2600683: Trifluorochloroethylene-vinyl acetate copolymers
US Patent 2600684: Hydrolyzed copolymers of fluorinated vinyl compounds
US Patent 2600686: Apparatus and process for preparing bands from thermoplastic material
US Patent 2600689: Silica-extended tin oxide and method of preparing same
US Patent 2600690: Sulfur colors of the dioxazine series and method of preparing the same
US Patent 2600691: Halogenated aromatic compounds
US Patent 2600692: Safety primary control for burners
US Patent 2600694: Lighting outfit subassembly machine

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