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US Patent: 1,453,854
Pipe Wrench
Patentee:
Burton H. Parker - Detroit, MI

USPTO Classifications:
81/349, 81/389, 81/427.5

Tool Categories:
wrenches : pipe wrenches

Assignees:
Trimont Manufacturing Company - Roxbury, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 24, 1922
Granted: May 01, 1923

Patent Pictures:
USPTO pdf tiff
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Description:
An adjustable alligator wrench with a bolt to set the size, and a lever handle to tighten the grip.

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