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US Patent: 2,723,505
Method and Apparatus for Surface Finishing
Patentee: Frederick G. Krafft (exact or similar names) - Springfield, Clark County, OH USPTO Classifications: 101/22, 451/299, 451/303, 451/59, 492/31 Tool Categories: metalworking machines : grinders : surface grinders Assignees: Thompson Grinder Co. - Springfield, Clark County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 25, 1953 Granted: Nov. 15, 1955 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Thompson Grinder Co.

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