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Patents for John C. Speirs
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
459,218Sep. 08, 1891R.T. TorkelsonForging Wrench Handleswrench handle components
536,301Mar. 26, 1895J.C. SpeirsMethod of Making Wrencheswrench handle components
639,785Dec. 26, 1899J.C. SpeirsPipe Wrenchpipe wrenches
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