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US Patent: 2,233,858
Collet Index Fixture
Patentee: Charles Tree (exact or similar names) - Racine, WI USPTO Classifications: 279/5 Tool Categories: metalworking machines : milling machines : milling machine accessories Assignees: None Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Jan. 08, 1940 Granted: Mar. 04, 1941 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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