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US Patent: 2,113,287
Machine for Grinding and Sharpening Broaches
Patentee: William G. Baldenhofer (exact or similar names) - Springfield, Clark County, OH USPTO Classifications: 33/551, 451/14, 451/160, 451/363, 451/364, 451/900 Tool Categories: metalworking machines : grinders : sharpening machines : broach sharpening machines Assignees: Thompson Grinder Co. - Springfield, Clark County, OH Manufacturer: Thompson Grinder Co. - Springfield, Clark County, OH Witnesses: Unknown	Patent Dates: Applied: Jun. 14, 1937 Granted: Apr. 05, 1938 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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