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All Patents of Type: motor controls
Patents 1 - 15 of 97
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NumberDatePatenteeTitleType
251,541Dec. 27, 1881T.A. EdisonElectric Magnetic Motormotor controls
465,512Dec. 22, 1891W.S. Andrews, A.K. WarrenRheostatmotor controls
485,620Nov. 08, 1892J.P. FiskeElectric Motor Controllermotor controls
500,274Jun. 27, 1893W.L. Tyler, A.B. SeeRegulating Switch for Electric Elevatorsmotor controls
520,748May 29, 1894J.S. BancroftMethod of Operating Electric Motorsmotor controls
524,396Aug. 14, 1894W.B. PotterController for Electric Motorsmotor controls
583,935Jun. 08, 1897F.E. Case, W.B. PotterSeries Parallel Controllermotor controls
672,419Apr. 16, 1901F.A. JohnsonMeans for Controlling Electric Motorsmotor controls
673,239Apr. 30, 1901J. BurkeRegulation and control of electric motorsmotor controls
681,133Aug. 20, 1901T.S. PerkinsStarting Apparatus for Electric Motorsmotor controls
681,167Aug. 20, 1901A.H. Mathewson, G.L. FairbrotherElectrical Controller Attachmentmotor controls
714,786Dec. 02, 1902M.W. DayControlling Electric Motorsmotor controls
714,862Dec. 02, 1902H.W. BuckControlling Electric Motorsmotor controls
715,019Dec. 02, 1902F.E. CaseMeans for Synchronizing Motorsmotor controls
715,195Dec. 02, 1902F.E. CaseMethod of Synchronizing Motorsmotor controls
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