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US Patent: 451,711
Chuck
Patentee: James Hartness (exact or similar names) - Springfield, Windsor County, , VT USPTO Classifications: 279/146, 279/57 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 30, 1890 Granted: May 05, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Jones, Lamson & Co.

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