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US Patent: 412,027
Lathe Chuck
Patentees: James Hartness (exact or similar names) - Torrington, Litchfield County, CT Elisha F. Spaulding (exact or similar names) - Windsor, Windsor County, VT USPTO Classifications: 279/55, 279/57 Tool Categories: metalworking machines : metal lathes : metal lathe chucks Assignees: Jones & Lamson Machine Co. - Springfield, Windsor County, VT Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 02, 1889 Granted: Oct. 01, 1889 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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