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Patents for N. A. Clark
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
288,432Nov. 13, 1883J.M. HarlandWrenchscrew adjust wrenches
302,166Jul. 15, 1884T.C. Sexton, J.H. SextonImprovements in Ratchet-Wrenchesratchet wrenches
304,945Sep. 09, 1884E.J. ManvilleScrew Threading Machinemetal threading machines
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