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US Patent: 2,403,768
Double-acting collet chuck
Patentee: Arthur Merrick Stoner (exact or similar names) - West Hartford, CT USPTO Classifications: 279/46.7, 279/51, 279/71 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: Jacobs Mfg. Co. - West Hartford, CT Manufacturer: Jacobs Mfg. Co. - West Hartford, CT Witnesses: Unknown	Patent Dates: Applied: Aug. 31, 1944 Granted: Jul. 09, 1946 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Jacobs Mfg. Co.

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