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All Patents of Type: spoke pointers
Patents 1 - 3 of 3
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NumberDatePatenteeTitleType
181,874Sep. 05, 1876G.N. StearnsImprovement in Fore-Augersspoke pointers
220,442Oct. 07, 1879E.C. StearnsImprovement in spoke-pointersspoke pointers
230,603Aug. 03, 1880D.F. BarberCountersinkcountersinks
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