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GB Patent: GB-663,227
Improvements in and relating to a method of and a device for grinding
Patentee: John Clifford Wilson (exact or similar names) - Springfield, OH USPTO Classifications: Tool Categories: metalworking machines : grinders : profile and contour grinders Assignees: Thompson Grinder Co. - Springfield, OH Manufacturer: Thompson Grinder Co. - Springfield, OH Witnesses: Unknown	Patent Dates: Applied: Feb. 17, 1949 Granted: Dec. 19, 1951 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for Thompson Grinder Co.

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