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US Patent: 2,428,248
Work holding attachment for surface grinders
Patentee: Charles W. Strong (exact or similar names) - Wynnewood, PA USPTO Classifications: 451/221, 451/397 Tool Categories: metalworking machines : grinders : surface grinders Assignees: None Manufacturer: Brown & Sharpe Mfg. Co. - Providence, RI Witnesses: Unknown	Patent Dates: Applied: Jan. 30, 1945 Granted: Sep. 30, 1947 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Brown & Sharpe Mfg. Co.
Description: This patent number was seen on an example with "Brown & Sharpe Mfg. Co. / Providence, R.I. U.S.A." cast into the bed.

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