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All Patents in class 451/389
Patents 1 - 3 of 3
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NumberDatePatenteeTitleType
172,589Jan. 25, 1876H.D. StoverImprovement in machines for cutting precious stones
175,262Mar. 28, 1876H.D. StoverImprovement in machines for polishing diamonds, &c.
1,254,071Jan. 22, 1918W.F. ReinlieChuck
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