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US Patent: 247,669
Screwdriver
Patentees: Charles H. Mallett (exact or similar names) - Augusta, ME Zachary T. Furbish (exact or similar names) - Augusta, ME USPTO Classifications: 192/44, 81/33 Tool Categories: screwdrivers : screwdriver mechanisms : ratcheting screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: Geo. W. Martin Joseph E. Badger	Patent Dates: Applied: Aug. 05, 1881 Granted: Sep. 27, 1881 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin
Description: Double locking feature between the handle and the tool with simplified construction.

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