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All Patents of Type: motor controls
Patents 1 - 15 of 41
First set of recordsNext set of recordsLast set of records
251,541Dec. 27, 1881T.A. EdisonElectric Magnetic Motormotor controls
520,748May 29, 1894J.S. BancroftMethod of Operating Electric Motorsmotor 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
733,401Jul. 14, 1903A. KimbleAlternating-current-motor controllermotor controls
790,541May 23, 1905W.J. Warder, Jr.Controller for electric motorsmotor controls
850,277Apr. 16, 1907C.R. TatemSystem of motor controlmotor controls
854,688May 21, 1907A.J. BrownController-operating meansmotor controls
865,811Sep. 10, 1907W.H. PowellSystem of motor controlmotor controls
865,813Sep. 10, 1907W.H. PowellMethods and means for controlling electric motorsmotor controls
865,814Sep. 10, 1907W.H. PowellMotor-control systemmotor controls
865,816Sep. 10, 1907W.H. PowellMotor-control systemmotor controls
865,820Sep. 10, 1907W.J. RichardsMotor-control systemmotor controls
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