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US Patent: 993,366
Planer-knife sharpener
Patentees: Frank Willard Converse (exact or similar names) - Beloit, WI William Harper (exact or similar names) - Beloit, WI USPTO Classifications: 144/130.2 Tool Categories: woodworking machines : woodworking machine parts or accessories : woodworking machine sharpening mechanisms Assignees: None Manufacturer: P. B. Yates Machine Co. - Beloit, WI Berlin Machine Works - Beloit, WI Witnesses: L. S. Olson Laura Ross L. M. Randall Earl L. Karstaedt	Patent Dates: Applied: Sep. 19, 1908 Granted: May 30, 1911 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for P. B. Yates Machine Co. Vintage Machinery entry for Berlin Machine Works

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