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Patents for James P. Platt
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
162,987May 04, 1875S.H. WilderMortising machine for piano buttons
168,696Oct. 11, 1875M.G. Wilder, S.H. Wilder, W.H. McNeil, H.C. TylerImprovement in mortising machines
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