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Patents for Jason L. Ewin
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
132,804Nov. 05, 1872O.A. Haynes, E. CliffImprovement in Lathe Dogslathe dogs
159,962Feb. 16, 1875J. PowellLubricator for Steam Enginesoil cups
292,676Jan. 29, 1884J.R. ParsonsJeweling Tool
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