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US Patent: D55,591
Wrench
Patentee:
Addison B. Carll (exact or similar names) - New York, NY

USPTO Classifications:
D8/22

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
Practical Tools Company - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Ellsie C. Duff
Chas. A. Rogers
F. P. Smith
Charles H. Ourand
Patent Dates:
Applied: Nov. 06, 1919
Granted: Jul. 06, 1920

Patent Pictures:
Addison B. Carll design patent July 6, 1920
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Description:
"Auto" type adjustable wrench with the adjusting nut in the middle of the handle.

Practical Tools Co. was a 1920s manufacturer of the CARLL combination nut and pipe wrench (patent no. 1,060,891).

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