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US Patent: 458,091
Expansion-Bit
Patentee: Charles Beauchene (exact or similar names) - Lake Linden, MI USPTO Classifications: 408/190, 408/192, 408/194, 408/195 Tool Categories: woodworking tools : hand drills : drill bits : adjustable drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: Dolphus Rolert G. O. Girardin	Patent Dates: Applied: Dec. 23, 1890 Granted: Aug. 18, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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