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US Patent: 87,289
Improvement in machine for filing saws
Patentee: George W. Rathbun (exact or similar names) - North Providence, RI USPTO Classifications: 76/31 Tool Categories: metalworking machines : grinders : sharpening machines : saw sharpening machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles W. Greene John D. Thurston	Patent Dates: Granted: Feb. 23, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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