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

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