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US Patent: 2,757,488
Multiple spindle honing machine
Patentee: Donald K. Greenberg (exact or similar names) - Rockford, IL USPTO Classifications: 451/151, 451/472 Tool Categories: metalworking machines : honing machines Assignees: Barnes Drill Co. - Rockford, IL Manufacturer: Barnes Drill Co. - Rockford, IL Witnesses: Unknown	Patent Dates: Applied: Jul. 20, 1954 Granted: Aug. 07, 1956 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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