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US Patent: 367,331
Grindstone-frame
Patentee: William F. Barnes (exact or similar names) - Rockford, IL USPTO Classifications: 29/DIG.075, 29/DIG.09, 451/450 Tool Categories: metalworking machines : grinders : grindstone frames Assignees: None Manufacturer: W. F. & John Barnes Co. - Rockford, IL Witnesses: A. O. Behel Jacob Behel	Patent Dates: Granted: Jul. 26, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for W. F. & John Barnes Co.

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