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US Patent: 2,271,532
Combined Work and Tool Holder
Patentee: Charles T. Allmendinger (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 269/76, 408/97, 409/225, 470/96 Tool Categories: metalworking machines : drilling and boring : drilling and boring tool holders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 07, 1941 Granted: Feb. 03, 1942 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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