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US Patent: 336,560
Screw-Driver
Patentee: John S. Fray (exact or similar names) - Bridgeport, CT USPTO Classifications: 81/33 Tool Categories: screwdrivers : screwdriver mechanisms : ratcheting screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: A. M. Wooster C. E. Ruggles	Patent Dates: Applied: Nov. 07, 1885 Granted: Feb. 23, 1886 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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