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US Patent: 281,568
Extension-Shank for Bits
Patentee: Caspar Schoch (exact or similar names) - Truckee, CA USPTO Classifications: 279/56, 279/91 Tool Categories: woodworking tools : hand drills : drill bit extensions Assignees: None Manufacturer: Not known to have been produced Witnesses: James L. Norris J. A. Rutherford	Patent Dates: Applied: Jun. 15, 1883 Granted: Jul. 17, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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