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US Patent: 1,290,489
Spiral tool-driver
Patentee: William J. Bauer (exact or similar names) - New York, NY USPTO Classifications: 74/127 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: Bauer Tool Co. - New York, NY Manufacturer: Bauer Tool Co. - New York, NY Witnesses: none listed	Patent Dates: Applied: Sep. 08, 1917 Granted: Jan. 07, 1919 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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