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US Patent: 709,064
Pipe Wrench
Rotary Jaw Pipe Wrench
Patentee:
Erastus A. Ware - Noank, CT

USPTO Classifications:
81/95

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

Assignees:
Erastus A. Ware - Noank, CT
Michael B. McDonald - Noank, CT

Manufacturer:
Ware Wrench Company - Worcester, MA

Witnesses:
E. A. Card
Evie Randall
M. M. Durkin
A. R. Appleman, Jr.

Patent Dates:
Applied: Jun. 12, 1901
Granted: Sep. 16, 1902

Patent Pictures:
Erastus A. Ware patent September 16, 1902
USPTO pdf tiff
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Description:
A cam with two alternate pivot points is positioned between side plates. A form of roller jaw pipe wrench.

A known example is stamped "WEAR WRENCH CO."

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