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US Patent: 1,304,799
Double-head grinding machine
Patentee: Charles H. Norton (exact or similar names) - Worcester, MA USPTO Classifications: 384/263, 451/249, 451/399 Tool Categories: metalworking machines : grinders : cylindrical grinders Assignees: Norton Grinding Co. - Worcester, MA Manufacturer: Norton Grinding Co. - Worcester, MA Witnesses: Clayton L. Jenks Lewis F. Butterfield	Patent Dates: Applied: Jul. 01, 1917 Granted: May 27, 1919 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Norton Co.

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