Patents for Charles L. Grover


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Patents for Charles L. Grover
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,153,463	Apr. 04, 1939	C.L. Grover	Index Plate for Boring and Milling Machines
	2,303,270	Nov. 24, 1942	C.L. Grover	Spindle Speed Control Mechanism for Machine Tools