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US Patent: 158,338
Mechanisms for Cutting Screw Taps
Patentee: William Tucker (exact or similar names) - Fiskedale, Worcester County, MA USPTO Classifications: 82/158, 82/19 Tool Categories: metalworking machines : metal lathes : metal lathe accessories and attachments Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 29, 1874 Granted: Dec. 29, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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