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US Patent: 67,014
Improved Screw-Driver
Patentee: Jared A. Ayres (exact or similar names) - Hartford, CT USPTO Classifications: 81/436 Tool Categories: screwdrivers : screwdriver blades Assignees: National Screw Co. - Hartford, CT Manufacturer: Not known to have been produced Witnesses: F. Chamberlin M. W. Chamberlin	Patent Dates: Granted: Jul. 23, 1867 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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