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US Patent: 872,728
Machine for Cutting Screw Threads
Patentee: James Hartness (exact or similar names) - Springfield, Windsor County, VT USPTO Classifications: 29/57, 470/176, 470/51, 470/66, 470/73, 82/110 Tool Categories: metalworking machines : metal threading machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 12, 1905 Granted: Dec. 03, 1907 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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