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Patents for George W. Francis
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
169,262Oct. 26, 1875G. HaydenImprovement in ratchet-drillsratchet braces
364,238Jun. 07, 1887G.W. FrancisWedge for Axes or Other Toolsaxes
461,469Oct. 20, 1891G.W. FrancisChuckmetal lathe chucks
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