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US Patent: 3,403,478
Automatic feed control for abrading machine
Patentee: Mark R. Estabrook (exact or similar names) - Rockford, IL USPTO Classifications: 451/1, 451/124 Tool Categories: Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Jun. 01, 1965 Granted: Oct. 01, 1968 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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