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All Patents of Type: taps and dies
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
20,168May 04, 1858R. NuttallCutting Screwstaps and dies
198,945Jan. 08, 1878J.M. JohnsonImprovement in collapsible screw-tapstaps and dies
385,543Jul. 03, 1888A. BurrittTap with Detachable Cutterstaps and dies
541,209Jun. 18, 1895G.S. LongScrew-cutting tooltaps and dies
607,726Jul. 19, 1898C.A. BaileyPipe Threading Implementtaps and dies
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