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US Patent: 979,831
Disk-Sharpener
Patentee: James I. Depew (exact or similar names) - Loup City, Sherman County, NE USPTO Classifications: 72/111, 76/89.2 Tool Categories: agricultural : sharpeners Assignees: None Manufacturer: J. I. Depew Disc Sharpener Co. - Loup City, Sherman County, NE Witnesses: W. E. Henry John W. Long	Patent Dates: Applied: Aug. 02, 1909 Granted: Dec. 27, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for J. I. Depew Disc Sharpener Co.

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