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US Patent: 147,488
Improvement in saw-filing devices
Patentee: Azel P. Durant (exact or similar names) - Woodyards, OH USPTO Classifications: 76/31 Tool Categories: metalworking machines : grinders : sharpening machines : saw sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: A. Palmer David Irwin	Patent Dates: Applied: Jan. 02, 1874 Granted: Feb. 17, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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