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All Patents of Type: motor controls
Patents 1 - 15 of 37
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
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
865,821Sep. 10, 1907W.J. RichardsSystem of motor controlmotor controls
867,154Sep. 24, 1907W.J. RichardsSystem of motor controlmotor controls
867,155Sep. 24, 1907W.J. RichardsMotor-control systemmotor controls
867,168Sep. 24, 1907E.W. StullController-regulatormotor controls
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