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US Patent: 370,003
Grinding Lathe
Patentee: Charles M. Brown (exact or similar names) - Rockford, Winnebago County, IL USPTO Classifications: 451/123, 451/143 Tool Categories: metalworking machines : grinders : cylindrical grinders Assignees: Knowlton Mfg. Co. - Rockford, Winnebago County, IL Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 19, 1883 Granted: Sep. 13, 1887 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Knowlton Mfg. Co.

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