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US Patent: 3,022,608
Taper Grinding Tool
Patentee: Charles Tree (exact or similar names) - Racine, WI USPTO Classifications: 451/135, 451/440 Tool Categories: metalworking machines : milling machines : milling machine tools Assignees: Tree Tool & Die Works - Racine, WI Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Jan. 11, 1960 Granted: Feb. 27, 1962 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Tree Tool and Die Works

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