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US Patent: 2,436,466
Method and Apparatus for Grinding and Lapping
Patentee: John C. Wilson (exact or similar names) - Springfield, Clark County, OH USPTO Classifications: 451/137, 451/28, 451/914 Tool Categories: metalworking machines : grinders : surface grinders Assignees: Thompson Grinder Co. - Springfield, Clark County, OH Manufacturer: Thompson Grinder Co. - Springfield, Clark County, OH Witnesses: Unknown	Patent Dates: Applied: Sep. 27, 1945 Granted: Feb. 24, 1948 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Thompson Grinder Co.
Description: This patent was listed on a Thompson Grinder Co. patent plate.

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