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All Patents of Type: electric motors
Patents 1 - 15 of 258
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NumberDatePatenteeTitleType
809Jun. 27, 1838N. WalklyImproved mode of changing the poles of electro-magnetselectric motors
910Sep. 08, 1838S. StimpsonImproved apparatus for the application of electro-magnetism as a motive powerelectric motors
26,558Dec. 27, 1859G.W. BeardsleeImproved magneto-electric machineelectric motors
96,332Nov. 02, 1869G. LittleImprovement in Electro-Magnetic Motorselectric motors
CA-686Nov. 05, 1870H. WoodImprovement in electro magnetic machines and magnetselectric motors
CA-919Apr. 11, 1871A. Ross, M.H. UtleyImprovements on electro-magnetic motorselectric motors
138,855May 13, 1873S.C. CarterElectro-Magnetic Motorselectric motors
171,087Dec. 14, 1875J. BishopElectro Magnetic Engineselectric motors
261,712Jul. 25, 1882W. HochhausenCommutator for Dynamo-Electric Machineselectric motors
269,605Dec. 26, 1882E. ThomsonDynamo Electric Machineelectric motors
271,175Jan. 23, 1883S.S. Wheeler, C.G. Curtis, F.B. CrockerElectric Motorelectric motors
283,546Aug. 21, 1883E. WestonElectro-magnetic motorelectric motors
289,197Nov. 27, 1883E. WestonSafety Cut-Out for Electric Magnetic Motorselectric motors
293,556Feb. 12, 1884W. BradburyElectric Motorelectric motors
295,454Mar. 18, 1884F.J. SpragueElectro Dynamic Motorelectric motors
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