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US Patent: 2,314,312
Grinding method and apparatus
Patentee: William C. Knapp (exact or similar names) - East Orange, NJ USPTO Classifications: 451/216, 451/387, 451/396 Tool Categories: Assignees: Mattison Machine Works - Rockford, IL Manufacturer: Mattison Machine Works - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Apr. 10, 1941 Granted: Mar. 16, 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: "The invention relates to the art of grinding and more particularly to an improved method of an apparatus for grinding arcuate surfaces."

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