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US Patent: 1,061,773
Driving mechanism for spiral-tool drivers
Patentee: John Nahlinger (exact or similar names) - Cleveland, OH USPTO Classifications: 74/127 Tool Categories: screwdrivers : screwdriver mechanisms : spiral screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: D. C. Reed John A. Bommhardt	Patent Dates: Applied: Dec. 18, 1912 Granted: May 13, 1913 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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