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US Patent: 2,343,570
Chucking Device for Use in Screw and Similar Machines
Patentee: Alden W. Nelson (exact or similar names) - Pawtucket, Providence County, RI USPTO Classifications: 226/166, 279/152, 279/20.1, 279/46.3, 279/57, 279/96 Tool Categories: metalworking machines : screw machines Assignees: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Manufacturer: Brown & Sharpe Mfg. Co. - Providence, Providence County, RI Witnesses: Unknown	Patent Dates: Applied: Jan. 19, 1942 Granted: Mar. 07, 1944 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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