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US Patent: 307,187
Screw-Driver
Ratchet Screw-Driver
Patentees:
Franklin L. Hamlen - Augusta, ME
Zachary T. Furbish - Augusta, ME

USPTO Classifications:
81/29

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. W. Whitehouse
L. M. Percival

Patent Dates:
Applied: Jul. 28, 1884
Granted: Oct. 28, 1884

Patent Pictures:
USPTO pdf tiff
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