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US Patent: 3,664,755
Finishing Boring Head
Patentee: Leroy J. Caras (exact or similar names) - Castro Valley, Alameda County, CA USPTO Classifications: 166/55.7, 175/384, 408/159, 408/172 Tool Categories: metalworking machines : drilling and boring : boring heads Assignees: Singer Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 02, 1970 Granted: May 23, 1972 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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