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US Patent: 1,261,157
Center and Tool Holder
Patentee: Charles H. Norton (exact or similar names) - Worcester, Worcester County, MA USPTO Classifications: 125/11.01 Tool Categories: metalworking machines : grinders : grinding attachments metalworking machines : grinders : grinder dressers Assignees: Norton Grinding Co. - Worcester, Worcester County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 24, 1916 Granted: Apr. 02, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Norton Co.

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