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US Patent: 3,277,613
Grinding Method
Patentees: Samuel G. Brady (exact or similar names) - Bloomfield Township, Oakland County, MI Wilhelm Dralle (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 451/28 Tool Categories: metalworking machines : grinders Assignees: Michigan Tool Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 24, 1961 Granted: Oct. 11, 1966 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Michigan Tool Co.

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