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US Patent: 2,345,581
Machine tool
Patentee: Harry J. Caldwell (exact or similar names) - Rockford, IL USPTO Classifications: 451/12, 451/151, 451/51 Tool Categories: Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Apr. 03, 1941 Granted: Apr. 04, 1944 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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