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US Patent: 2,585,990
Method of grinding intricate contours
Patentee: William G. Baldenhofer (exact or similar names) - Springfield, OH USPTO Classifications: 125/11.03, 451/213, 451/48, 451/56, 451/67, 451/72, 451/913 Tool Categories: metalworking machines : grinders : profile and contour grinders metalworking machines : grinders : crankshaft grinders Assignees: Thompson Grinder Co. - Springfield, OH Manufacturer: Thompson Grinder Co. - Springfield, OH Witnesses: Unknown	Patent Dates: Applied: Sep. 08, 1947 Granted: Feb. 19, 1952 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Thompson Grinder Co.

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