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US Patent: 499,010
Machine for Turning Crank Pins
Patentee: Herbert W. Chapman (exact or similar names) - Newark, Essex County, NJ USPTO Classifications: 82/106 Tool Categories: metalworking machines : metal lathes : crank pin lathes Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 29, 1892 Granted: Jun. 06, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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