Patents for James P. Platt


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Patents for James P. Platt
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
162,987	May 04, 1875	S.H. Wilder	Mortising machine for piano buttons	mortising machines
168,696	Oct. 11, 1875	M.G. Wilder, S.H. Wilder, W.H. McNeil, H.C. Tyler	Improvement in mortising machines	mortising machines