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US Patent: 151,828
Improvement in Hollow Augers
Patentee: Jared Benham (exact or similar names) - Hamden, CT USPTO Classifications: 30/495 Tool Categories: woodworking tools : hand drills : drill bits : hollow bits Assignees: William A. Ives & Co. - New Haven, CT Manufacturer: Not known to have been produced Witnesses: A. J. Tibbits I. H. Shumway	Patent Dates: Applied: May 25, 1874 Granted: Jun. 09, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.

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