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US Patent: 1,289,924
Knob Grinding Machine
Patentee: Andrew J. Sanford (exact or similar names) - Newark, OH USPTO Classifications: 279/151, 451/227, 451/385, 451/398, 451/57, 451/913 Tool Categories: Assignees: A. J. Heisey & Co. - Newark, OH Manufacturer: Not known to have been produced Witnesses: H. C. Mueller J. P. Goodwin	Patent Dates: Applied: Sep. 12, 1914 Granted: Dec. 31, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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