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US Patent: 272,820
Attachment to Lathes for Turning Crank Pins
Patentee: John W. Wilbraham (exact or similar names) - Philadelphia, PA USPTO Classifications: 82/106 Tool Categories: metalworking machines : metal lathes : metal lathe accessories and attachments Assignees: John W. Wilbraham - Philadelphia, PA Thomas Wilbraham - Philadelphia, PA James Wilbraham - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 11, 1882 Granted: Feb. 20, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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