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Patents for Black Brothers Machinery Co.
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
564,587Jul. 28, 1896W. BlackSandpapering-machinesanding machines
565,875Aug. 18, 1896W. BlackMachine for cutting pulley-stile pocketsmortising machines
605,774Jun. 14, 1898W. BlackMortising-machinemortising machines
662,390Nov. 27, 1900W. BlackMortising-machinemortising machines
718,972Jan. 27, 1903W. BlackMortising-machinemortising machines
732,160Jun. 30, 1903J. BlackClampbar and pipe clamps
783,502Feb. 28, 1905J. Black, W. BlackClamp or visehand screws
869,688Oct. 29, 1907J. BlackSandpapering-machinebelt sanders
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