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Patents for Grinnell Corp.
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	2,533,413	Dec. 12, 1950	J.H. Williams	Fluid Pressure Actuated C-Clamp
	2,607,054	Aug. 19, 1952	J.H. Williams	Chucking Mechanism for Tapping Machine

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