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US Patent: 1,571,497
Extension Bit
Patentee: George W. Staley (exact or similar names) - San Francisco, CA USPTO Classifications: 279/82, 279/89 Tool Categories: woodworking tools : hand drills : drill bit extensions Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 03, 1923 Granted: Feb. 02, 1926 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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