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US Patent: 1,036,379
Screwdriver
Patentee: Frank Arthur Tibbals (exact or similar names) - Monmouth, IL USPTO Classifications: 81/177.6, 81/58.3, 81/58.4 Tool Categories: screwdrivers : screwdriver mechanisms : ratcheting screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: D. W. Hare J. A. Siegfried	Patent Dates: Applied: May 03, 1912 Granted: Aug. 20, 1912 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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