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US Patent: 1,339,452
Dressing-tool for grinding-wheels
Patentee: Edwin T. Gorham (exact or similar names) - Grand Rapids, MI USPTO Classifications: 125/11.03 Tool Categories: industrial tools : grinding wheels : grinder dressers metalworking machines : grinders : sharpening machines : drill sharpening machines metalworking machines : grinders : grinder dressers Assignees: Wilmarth & Morman Co. - Grand Rapids, MI Manufacturer: Covel Mfg. Co. - Benton Harbor, MI Wilmarth & Morman Co. - Grand Rapids, MI Witnesses: Unknown	Patent Dates: Applied: May 17, 1917 Granted: May 11, 1920 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Covel Mfg. Co. Vintage Machinery entry for Wilmarth & Morman Co.
Description: This patent date was seen on a Yankee drill grinder from Covel Mfg. Co.

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