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Patents for Charles L. Dunham
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
332,191Dec. 08, 1885C.L. DunhamPipe Wrenchchain and strap wrenches
404,781Jun. 04, 1889C.L. DunhamPipe Wrenchchain and strap wrenches
404,789Jun. 04, 1889C.L. DunhamPipe Wrenchchain and strap wrenches
542,012Jul. 02, 1895C.L. DunhamPipe Wrenchpipe wrenches
563,848Jul. 14, 1896C.L. DunhamSucker Rod Wrenchwrenches
632,555Sep. 05, 1899C.L. DunhamWrench For Well-Drilling Tools
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