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US Patent: 453,022
Grinding Machine
Patentee: Charles H. Norton (exact or similar names) - Providence, Providence County, RI USPTO Classifications: 200/84R, 451/394 Tool Categories: metalworking machines : grinders Assignees: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 01, 1890 Granted: May 26, 1891 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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