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US Patent: 457,967
Machine for Making Screws
Patentee: James Hartness (exact or similar names) - Springfield, Windsor County, VT USPTO Classifications: 29/46, 29/64, 74/822, 82/143, 82/149 Tool Categories: metalworking machines : screw machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 09, 1891 Granted: Aug. 18, 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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