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US Patent: 346,058
Screw Driver
Improvement in Ratchet Screw-Drivers
Patentee:
Thomas G. G. Mouat (exact or similar names) - Detroit, MI

USPTO Classifications:
192/43.1, 81/177.85, 81/33, 81/63

Tool Categories:
wrenches : ratchet wrenches
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Samuel E. Thomas
Jno. E. Wiles
M. B. O'Dogherty

Patent Dates:
Applied: Dec. 03, 1885
Granted: Jul. 20, 1886

Patent Pictures:
Thomas G. G. Mouat patent July 20, 1886
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Description:
A ratchet driven head for screwdrivers, bits, and similar tools that can be driven by a square tapered socket. The ratchet is reversible.

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