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US Patent: 505,165
Combination screw-driver and tool-handle
Patentee: John B. Hughes (exact or similar names) - Denver, CO USPTO Classifications: 279/42, 74/127 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: John T. Roberts Willis F. Wolff	Patent Dates: Applied: Aug. 22, 1891 Granted: Sep. 19, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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