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Patents for William J. Clark
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
153,663Aug. 04, 1874W.J. Clark, A.O. Kittredge, W.H. ClarkMallets for Smothing Sheet Metalpower hammers
166,703Aug. 17, 1875W.J. Clark, W.H. Clark, A.O. KittredgeMallets for Smoothing Sheet Metaldrop hammers
313,735Mar. 10, 1885G.H. HillExpansible bitadjustable drill bits
524,192Aug. 07, 1894W.J. Clark, W.H. ClarkMortising machinemortising machines
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