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Patents for Ainsworth Brown
Patents 1 - 3 of 3
First set of recordsLast set of records
172,589Jan. 25, 1876H.D. StoverImprovement in machines for cutting precious stones
175,262Mar. 28, 1876H.D. StoverImprovement in machines for polishing diamonds, &c.
176,091Apr. 11, 1876H.D. StoverImprovement in planing-machinesmatchers
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