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US Patent: 1,299,765
Multiple-speed device
Patentees: Albert Turner (exact or similar names) - Worcester, MA Charles H. Norton (exact or similar names) - Worcester, MA USPTO Classifications: 475/305, 74/10.52, 82/137 Tool Categories: metalworking machines : grinders : surface grinders Assignees: Norton Grinding Co. - Worcester, MA Manufacturer: Norton Co. - Worcester, MA Norton Grinding Co. - Worcester, MA Witnesses: Unknown	Patent Dates: Applied: Sep. 27, 1917 Granted: Apr. 08, 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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