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US Patent: 79,665
Wrench
Improvement in Pipe-Wrenches
Patentee:
John Madden - Cleveland, OH

USPTO Classifications:
81/184

Tool Categories:
wrenches : wrench components : pipe jaw attachments for wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. H. Burridge
J. H. Burridge

Patent Dates:
Granted: Jul. 07, 1868

Patent Pictures:
John Madden Pat. July 7, 1868
USPTO pdf tiff
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Description:
The patent is for a supplementary pipe jaw that is applied to the outer jaw of a monkey wrench.

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