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Patents for Ainsworth Brown
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
172,589	Jan. 25, 1876	H.D. Stover	Improvement in machines for cutting precious stones
175,262	Mar. 28, 1876	H.D. Stover	Improvement in machines for polishing diamonds, &c.
176,091	Apr. 11, 1876	H.D. Stover	Improvement in planing-machines	matchers

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