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Patents for Daniel E. True
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
16,814Mar. 10, 1857C.P. WardwellCircular sawing machinetablesaws
17,536Jun. 09, 1857C.P. WardwellImprovement in cheese-hoops
43,886Aug. 16, 1864D.E. TrueLathe Toollathe tools
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