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US Patent: 3,237,350
Automatic honing method
Patentee: Mark R. Estabrook (exact or similar names) - Rockford, IL USPTO Classifications: 451/124, 451/150, 451/24, 451/51 Tool Categories: metalworking machines : honing machines Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Mar. 04, 1965 Granted: Mar. 01, 1966 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Barnes Drill Co.

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