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All Patents in class 318/150
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
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
924,786Jun. 15, 1909H.D. JamesSystem of Electric Motor Controlmotor controls
3,305,762Feb. 21, 1967C.E. Geib, Jr.Method of control of electric powermotor controls
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