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US Patent: 333,662
Auger for cutting square holes
Patentee: William Patterson (exact or similar names) - San Francisco, CA USPTO Classifications: 408/30 Tool Categories: metalworking machines : drilling and boring : drill bits woodworking tools : hand drills : drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: A. B. Smith R. H. Morton G. C. Knapp	Patent Dates: Applied: Apr. 20, 1885 Granted: Jan. 05, 1886 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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