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US Patent: 2,235,558
Grinding Machine
Patentees: Maxwell Ingraham Mathewson (exact or similar names) - Providence, Providence County, RI August L. Krause (exact or similar names) - Providence, Providence County, RI USPTO Classifications: 318/258, 318/266, 318/284 Tool Categories: metalworking machines : grinders : surface grinders metalworking machines : grinders : surface grinders Assignees: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Manufacturer: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Witnesses: Unknown	Patent Dates: Applied: Nov. 14, 1935 Granted: Mar. 18, 1941 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.
Description: This patent number has been seen on a Brown & Sharpe No. 5 surface grinder.

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