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US Patent: 2,334,238
Surface Grinder Spindle Bearing
Patentee: William G. Baldenhofer (exact or similar names) - Springfield, Clark County, OH USPTO Classifications: 451/34 Tool Categories: metalworking machines : metalworking machine mechanisms : metalworking machine bearings 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: Dec. 22, 1941 Granted: Nov. 16, 1943 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: Original application 22 Dec., 1941. Divided and this application 03 Aug., 1942. This patent was listed on a Thompson Grinder Co. patent plate.

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