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US Patent: 269,406
Auger
Patentee: Porter A. Gladwin (exact or similar names) - Boston, MA USPTO Classifications: 408/194, 408/195, 408/212, 408/213 Tool Categories: woodworking tools : hand drills : drill bits : adjustable drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: Henry W. Williams Joseph Ishbaugh	Patent Dates: Applied: Apr. 25, 1882 Granted: Dec. 19, 1882 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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