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US Patent: 2,934,978
Positioning system for machine tools
Patentee: Mark R. Estabrook (exact or similar names) - Rockford, IL USPTO Classifications: 269/55, 408/13, 408/89, 409/221, 74/7R, 74/821, 74/824, 74/826 Tool Categories: Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: May 07, 1958 Granted: May 03, 1960 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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