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US Patent: 185,441
Machine for Forming Split Keys
Patentee: Walter Gibb (exact or similar names) - Allegheny, Allegheny County, PA USPTO Classifications: 226/181, 29/5, 72/407, 83/953 Tool Categories: specialty machines : metal twisting machines Assignees: Metcalf, Paul & Co. - Pittsburg, Allegheny County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 23, 1876 Granted: Dec. 19, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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