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US Patent: 1,052,605
Grinding Machine
Patentee: Simon MacKay (exact or similar names) - Athol, Worcester County, MA USPTO Classifications: 451/213, 451/273, 451/363, 451/374 Tool Categories: metalworking machines : grinders : sharpening machines Assignees: Union Twist Drill Co. - Athol, Worcester County, MA Manufacturer: Union Twist Drill Co. - Athol, Worcester County, MA Witnesses: John W. Boynton C. Stanley Newton L. D. Goodwin R. B. Ellms	Patent Dates: Applied: Jul. 28, 1910 Granted: Feb. 11, 1913 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Union Twist Drill Co.

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