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US Patent: 2,344,371
Ring Grinding Machine
Patentee: Ralph M. Shaw, Jr. (exact or similar names) - Edgewater Park, Burlington County, NJ USPTO Classifications: 409/165, 451/209, 451/244, 451/397 Tool Categories: metalworking machines : grinding machines Assignees: Pedrick Tool & Machine Co. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 08, 1943 Granted: Mar. 14, 1944 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pedrick Tool & Machine Co.

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