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501–600 of 1093
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Title
Identifier
Class
Created
Date Created (numeric:timestamp)
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Phonogram-Blank, April 02, 1889
[PAT400648]
Phonogram-Blank, June 17, 1890
[PAT430274]
Phonogram-Blank, May 08, 1888
[PAT382418]
Phonogram-Blank, May 08, 1888
[PAT382462]
Phonogram-Blank, June 17, 1890
[PAT430570]
Perforators for Automatic Telegraphy, February 10, 1874
[PAT147312]
Perforators for Automatic Telegraphs, August 12, 1873
[PAT141775]
Perforating Pens, May 07, 1878
[PAT203329]
Para-phenylene-di-amin Substance and Process Relating Thereto, November 05, 1918
[PAT1283706]
Paper for Chemical Telegraphs etc., October 22, 1872
[PAT132455]
Ore-Separator, March 26, 1889
[PAT400317]
Ore-Screening Apparatus, June 07, 1892
[PAT476532]
Ore-Screening Apparatus, April 12, 1892
[PAT472753]
Ore-Conveying Apparatus, May 10, 1892
[PAT474592]
Ore-Conveyer and Method of Arranging Ore Thereon, March 22, 1892
[PAT471268]
Nickel-Plating, March 15, 1921
[PAT1371414]
Moving-Picture Apparatus, April 04, 1916
[PAT1178062]
Mounting for Diaphragms of Sound Boxes, January 21, 1930
[PAT1744533]
Mounting for Diamonds and the Like, September 21, 1926
[PAT1600722]
Mold or Transfer Plate, July 24, 1917
[PAT1234451]
Mold for Sound-Records, December 30, 1919
[PAT1326330]
Mold for Concrete Construction, January 05, 1915
[PAT1123261]
Mold for Carbonizing Incandescents, August 22, 1882
[PAT263144]
Mold for Carbonizing, October 30, 1883
[PAT287522]
Mold for Carbonizing, March 20, 1883
[PAT274291]
Mold for Carbonizing, January 26, 1886
[PAT334853]
Mold, May 23, 1922
[PAT1417463]
Mode of Operating Dynamo-Electric Machines, May 20, 1884
[PAT298956]
Mixer, June 14, 1898
[PAT605668]
Method of Winding Field-Magnets, February 12, 1889
[PAT397705]
Method of Utilizing Waste Heat in Kilns, January 11, 1916
[PAT1167637]
Method of Treating Carbons for Electric Lights, May 13, 1884
[PAT298679]
Method of Treating Carbons for Electric Lamps, October 10, 1882
[PAT265777]
Method of Treating Cans of Alkaline Storage Batteries, February 08, 1910
[PAT948542]
Method of Separating Mechanically-Entrained Globules from Gases, July 05, 1904
[PAT764183]
Method of Screening or Rescreening Fine Materials, April 02, 1901
[PAT671317]
Method of Rendering Storage-Battery Gases Non-Explosive, August 16, 1904
[PAT767554]
Method of Reheating Compressed Air for Industrial Purposes, February 20, 1900
[PAT643764]
Method of Recording and Reproducing Sounds, December 04, 1888
[PAT393967]
Method of Recording and Reproducing Sounds, December 04, 1888
[PAT393966]
Method of Producing Tablets for Sound-Records, July 13, 1915
[PAT1146413]
Method of Producing Sound-Record Tablets, November 06, 1928
[PAT1690159]
Method of Producing Chlorinated Rubber, May 27, 1924
[PAT1495580]
Method of Presenting the Illusion of Scenes in Colors, May 04, 1915
[PAT1138360]
Method of Preparing Phonograph Recording-Surfaces, November 27, 1888
[PAT393465]
Method of Manufacturing Incandescing Electric Lamps, October 30, 1883
[PAT287518]
Method of Manufacturing Electric Lamps, January 08, 1889
[PAT395962]
Method of Manufacturing Electric Lamps, July 20, 1880
[PAT230255]
Method of Making Storage-Battery Electrodes, March 03, 1908
[PAT880979]
Method of Making Sound-Record Molds, June 09, 1914
[PAT1099349]
Method of Making Plate Glass, October 10, 1893
[PAT506215]
Method of Making Phonograph-Records, July 13, 1915
[PAT1146414]
Method of Making Phonogram-Blanks, September 30, 1890
[PAT437427]
Method of Making Phonogram-Blanks, April 02, 1889
[PAT400650]
Method of Making Phonogram-Blanks, April 02, 1889
[PAT400649]
Method of Making Molds for Sound-Records, November 24, 1914
[PAT1118114]
Method of Making Armatures for Dynamo-Electric Machines, September 02, 1890
[PAT435690]
Method of Maintaining Temperature in Webermeters, October 10, 1882
[PAT265774]
Method of Magnetically Separating Ores, November 08, 1892
[PAT485841]
Method of Magnetic-Ore Separation, November 08, 1892
[PAT485842]
Method of Insulating Electrical Conductors, October 14, 1890
[PAT438309]
Method of Forming Enlarged Ends on Carbon Filaments, March 22, 1881
[PAT239151]
Method of Coating Active Material with Flake-Like Conducting Material, December 25, 1906
[PAT839371]
Method of Burning Portland-Cement Clinker, May 10, 1904
[PAT759356]
Method of Burning Portland-Cement Clinker, September 07, 1915
[PAT1152613]
Method of Bricking Fine Ores, December 15, 1891
[PAT465251]
Method of Bricking Fine Iron Ores, November 08, 1892
[PAT485840]
Method of Breaking Rock, April 23, 1901
[PAT672616]
Method of and Apparatus for Separating Ores, June 14, 1892
[PAT476991]
Method of and Apparatus for Mixing Materials, January 23, 1894
[PAT513096]
Method of and Apparatus for Drawing Wire, July 07, 1896
[PAT563462]
Method of and Apparatus for Drawing Wire, September 23, 1890
[PAT436969]
Method of and Apparatus for Drawing Wire, September 23, 1890
[PAT436968]
Method and Means for Improving the Rendition of Musical Compositions, November 25, 1919
[PAT1323218]
Method and Apparatus for Making Sound-Records, September 20, 1910
[PAT970615]
Metallic Film for Use with Storage-Battery Electrodes and Process of Preparing the Same, August 25, 1908
[PAT896811]
Measurement of Electricity in Distribution Systems, April 15, 1890
[PAT425760]
Means for Utilizing the Waste Heat in Kilns, August 03, 1915
[PAT1148832]
Means for Transmitting Signals Electrically, December 29, 1891
[PAT465971]
Means for Reproducing Sound, March 18, 1913
[PAT1056517]
Means for Recording Sounds, December 03, 1918
[PAT1286259]
Means for Recording Sounds, July 04, 1916
[PAT1190133]
Means for Propelling Electric Cars, June 14, 1892
[PAT476986]
Means for Operating Motors in Dust-Laden Atmospheres, March 31, 1903
[PAT724089]
Means for Operating and Regulating Electrical Generators, April 24, 1883
[PAT276232]
Means for Handling Cable-Drawn Cars on Inclines, March 10, 1903
[PAT722502]
Means for Controlling Electric Generation, September 13, 1892
[PAT482549]
Means for Concentrating Ores, January 11, 1916
[PAT1167638]
Means for Charging and Using Secondary Batteries, September 02, 1890
[PAT435687]
Means and Method for Preventing Depletion of Electrolyte, February 06, 1912
[PAT1016874]
Manufacturing Carbons for Electric Lights, October 18, 1881
[PAT248417]
Manufacturing Carbons for Electric Lamps, June 14, 1881
[PAT242900]
Manufacture of Portland Cement, April 22, 1913
[PAT1059661]
Manufacture of Incandescing Electric Lamps, May 29, 1883
[PAT278417]
Manufacture of Incandescing Electric Lamps, May 29, 1883
[PAT278415]
Manufacture of Incandescing Electric Lamps, April 10, 1883
[PAT275612]
Manufacture of Incandescing Electric Lamps, February 06, 1883
[PAT271613]
Manufacture of Incandescing Electric Lamps, May 29, 1883
[PAT278416]
Manufacture of Incandescing Electric Lamps, September 19, 1882
[PAT264650]
Manufacture of Incandescents, March 20, 1883
[PAT274296]
of 11
501–600 of 1093