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Patents for Philip Schrag
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
14,296Feb. 19, 1856W.J. von Kammerhueber, P. SchragSawing Stonestone cutting machines
45,679Dec. 27, 1864P. SchragImprovement in machines for sandpapering pencilssanding machines
103,241May 17, 1870P. Schrag, P. HufelandImprovement in machines for cutting off lead-pencilspencil making machines
RE5,236Jan. 14, 1873P. Schrag, P. HufelandMachine for cutting off pencilspencil making machines
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