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US Patent: 890,894
Bit-Extender
Patentees: William H. Ehrhart (exact or similar names) - Lancaster, PA George W. Leonard (exact or similar names) - Lancaster, PA USPTO Classifications: 279/52, 403/161, 403/317 Tool Categories: woodworking tools : hand drills : drill bit extensions Assignees: None Manufacturer: Not known to have been produced Witnesses: J. L. Grost H. S. Mentzer	Patent Dates: Applied: Feb. 11, 1908 Granted: Jun. 16, 1908 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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