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All Patents in class 318/58
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	273,490	Mar. 06, 1883	T.A. Edison	Electro Magnetic Railway System
	871,970	Nov. 26, 1907	E.W. Stull	System of motor control
	1,016,794	Feb. 06, 1912	E.W. Stull	System of motor control
	1,773,712	Aug. 19, 1930	J.B. Wiard	Apparatus for controlling electric motors

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