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Patents for C. H. Stinchfield
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	158,172	Dec. 29, 1874	A.W. Proctor, C.H. Hill	Improvement in machine for grinding knives
	158,173	Dec. 29, 1874	C.H. Hill, A.W. Proctor	Improvement in belt-shifters

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