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Patents for Charles Richards
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	91,269	Jun. 15, 1869	W. Curtiss, C. Richards	Improvement in cutter-head
	260,609	Jul. 04, 1882	C. Richards	Monkey-Wrench
	263,402	Aug. 29, 1882	C. Hart	Die Stock for Cutting Threads

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