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Patents for John Black
Patents 1 - 7 of 7
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
140,561Jul. 01, 1873G. WarsopPipe Wrenches
  222,972Dec. 23, 1879J.B. WhiteFeed Screw for Drills
565,875Aug. 18, 1896W. BlackMachine for cutting pulley-stile pockets
605,774Jun. 14, 1898W. BlackMortising-machine
732,160Jun. 30, 1903J. BlackClamp
783,502Feb. 28, 1905J. Black, W. BlackClamp or vise
869,688Oct. 29, 1907J. BlackSandpapering-machine
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