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All Patents in class 377/2
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
	4,266,120	May 05, 1981	R. Johnstone	Unmanned Machining Center With Tool Checking

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