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US Patent: 2,780,857
Tool Holder
Patentee: William E. Twamley (exact or similar names) - Providence, Providence County, RI USPTO Classifications: 407/117, 407/120, 407/80, 407/94 Tool Categories: metalworking machines : metalworking machine tool holders Assignees: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 15, 1954 Granted: Feb. 12, 1957 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Brown & Sharpe Mfg. Co

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