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All Patents in class 327/494
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	3,193,698	Jul. 06, 1965	R.M. Henderson, R. Zechlin	Transistor Controlled Speed Shunt
	3,448,294	Jun. 03, 1969	R. Zechlin, R.M. Henry	Multiphase Power Switching Circuit

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