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US Patent: 314,507
Combined Knife, Eraser, Letter Opener, &c.
Patentee: William W. Yonge (exact or similar names) - Chattanooga, Hamilton County, TN USPTO Classifications: 30/317, 33/485, 7/160, 7/163, D10/62, D10/71 Tool Categories: knives and cutters combination tools household : erasers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 24, 1884 Granted: Mar. 24, 1885 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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