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US Patent: 879,309
Expansible bit
Patentee: Ernest Pastore (exact or similar names) - New Haven, CT USPTO Classifications: 408/195, 408/197, D15/139 Tool Categories: woodworking tools : hand drills : drill bits : adjustable drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: Edmund J. Houde William W. Scott	Patent Dates: Applied: Jun. 10, 1907 Granted: Feb. 18, 1908 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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