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US Patent: 221,862
Improvement in devices for securing the tail-stocks of metal-turning lathes
Patentee: Salmon W. Putnam (exact or similar names) - Fitchburg, Worcester County, MA USPTO Classifications: 82/148 Tool Categories: metalworking machines : metal lathes metalworking machines : metalworking machine mechanisms Assignees: None Manufacturer: Not known to have been produced Witnesses: William Colt J. W. Smith	Patent Dates: Applied: Jun. 20, 1879 Granted: Nov. 18, 1879 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Putnam Machine Co.

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