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All Patents in class 341/114
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	3,490,017	Jan. 13, 1970	T.B. Bullock, N.C. Kolell	Numerical Control Systems Employing Conversion of Changing Command Numbers Into Phase Analog Signals
	3,866,212	Feb. 11, 1975	T.B. Bullock, J.B. Simon	Position Control System with Plural Signal Transmission Through Common Inductive Device

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