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US Patent: 1,683,859
Grinding machine
Patentee: Francis P. Brown (exact or similar names) - Providence, RI USPTO Classifications: 144/14, 451/140, 451/143, 451/16, 451/218, 451/340 Tool Categories: Assignees: Brown & Sharpe Mfg. Co. - Providence, RI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 23, 1927 Granted: Sep. 11, 1928 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Brown & Sharpe Mfg. Co.

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