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US Patent: 991,503
Carriage for gang-saw-sharpening machines
Patentee: John P. Hedstrom (exact or similar names) - Big Rapids, MI USPTO Classifications: 76/78.1 Tool Categories: metalworking machines : grinders : sharpening machines : saw sharpening machines Assignees: Hanchett Swage Works - Big Rapids, MI Manufacturer: Hanchett Swage Works - Big Rapids, MI Witnesses: E. D. Sanford H. J. Heydenburg	Patent Dates: Applied: Jul. 15, 1909 Granted: May 09, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hanchett Swage Works

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