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US Patent: 175,262
Improvement in machines for polishing diamonds, &c.
Patentee: Henry D. Stover (exact or similar names) - New York, NY USPTO Classifications: 451/246, 451/360, 451/389 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Ainsworth Brown C. A. Pease	Patent Dates: Applied: Mar. 16, 1876 Granted: Mar. 28, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Stover Machine Co.

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