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US Patent: 434,115
Grinding Machine
Patentee: Charles H. Norton (exact or similar names) - Providence, Providence County, RI USPTO Classifications: 451/218, 451/342, 451/394, 451/454 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: Jul. 31, 1889 Granted: Aug. 12, 1890 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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