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US Patent: 2,312,347
Dressing device
Patentee: Sern Madsen (exact or similar names) - Rockford, IL USPTO Classifications: 125/11.13 Tool Categories: Assignees: Mattison Machine Works - Rockford, IL Manufacturer: Mattison Machine Works - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Jan. 04, 1941 Granted: Mar. 02, 1943 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Mattison Machine Works
Description: "This invention relates to a device for dressing the periphery of a grinding wheel to an irregular contour."

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