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US Patent: 415,481
Screw Driver Screw holding screw Bit
Patentee: Charles George Teubner (exact or similar names) - Lexington, MO USPTO Classifications: 81/455 Tool Categories: screwdrivers : screwdriver blades Assignees: None Manufacturer: Not known to have been produced Witnesses: J. R. Moreland W. J. Brandon	Patent Dates: Applied: Jun. 09, 1888 Granted: Nov. 19, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: The Bit has a Square drive to be used in a Brace or hand held Screwdriver.

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