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US Patent: 291,282
Lathe Mandrel
Patentee: William H. Blue (exact or similar names) - Grafton, Taylor County, WV USPTO Classifications: 279/2.12, 279/2.13, 301/130, 82/169 Tool Categories: metalworking tools : mandrels and arbors Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 27, 1883 Granted: Jan. 01, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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