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US Patent: 3,736,703
Mechanism for expanding a honing tool
Patentees: Mark R. Estabrook (exact or similar names) - Rockford, IL Wilfred F. W. Treder (exact or similar names) - Rockford, IL USPTO Classifications: 451/14, 451/151 Tool Categories: metalworking machines : honing machines Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Aug. 27, 1971 Granted: Jun. 05, 1973 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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