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Patents Granted on 1912-05-21
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
RE13,421May 21, 1912R.H. HazeltineMachine for Reseating Valvesvalve grinding tools
1,026,661May 21, 1912F.H. DicksonWrenchpipe wrenches
1,026,866May 21, 1912J.N. Norton, E. CarlsonSiding-Markerclapboard markers
1,026,887May 21, 1912J.H. Van DeventerRotary Enginerotary steam engines
1,026,975May 21, 1912C.A. DeveroTire Setting Machineblacksmith
1,027,161May 21, 1912A. VietorGripping Device
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