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All Patents of Type: AC motors
Patents 1 - 15 of 742
First set of recordsNext set of recordsLast set of records
8,736XMar. 31, 1835D. HarringtonGalvanic electricity applied to cure diseaseselectric batteries
132Feb. 25, 1837T. DavenportImprovement in propelling machinery by magnetism and electro-magnetismDC 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
159,028Jan. 26, 1875G.F. GreenImprovement in electro-magnetic dental toolselectrical devices
171,087Dec. 14, 1875J. BishopElectro Magnetic Engineselectric motors
200,032Feb. 05, 1878T.A. EdisonSynchronous Movements for Electric Telegraphstelegraphic apparatus
238,631Mar. 08, 1881C.E. BallDynamo or Magneto-Electric Machineelectric generators
244,331Jul. 12, 1881W. Stanley, Jr.Circuit-closer for incandescent lampselectric switches
248,435Oct. 18, 1881T.A. EdisonUtilizing Electricity as Motive PowerDC motors
251,541Dec. 27, 1881T.A. EdisonElectric Magnetic Motormotor controls
261,712Jul. 25, 1882W. HochhausenCommutator for Dynamo-Electric Machineselectric motors
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