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US Patent: 315,137
Screw-Driver Ratchet Screw-Driver
Patentees: Zachary T. Furbish (exact or similar names) - Augusta, ME Franklin L. Hamlen (exact or similar names) - Augusta, ME USPTO Classifications: 81/33, 81/436 Tool Categories: screwdrivers : screwdriver mechanisms : ratcheting screwdrivers Assignees: None Manufacturer: Not known to have been produced Witnesses: E. W. Whitehouse L. M. Perceval	Patent Dates: Applied: Jan. 07, 1885 Granted: Apr. 07, 1885 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Steve Gosselin

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