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US Patent: 1,588,475
Plier Wrench
Patentee:
Percival F. King - New Haven, CT

USPTO Classifications:
81/339, 81/359

Tool Categories:
pliers

Assignees:
None

Manufacturer:
Unknown

Witnesses:
none listed

Patent Dates:
Applied: Aug. 11, 1924
Granted: Jun. 15, 1926

Patent Pictures:
Percival F. King patent June 15, 1926
USPTO pdf tiff
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Description:
The movable jaw slides on a stud, and is moved by a cam end on one handle. The effect is such that closing the jaws on an object will effectively clamp the jaws until they are released by separating the handles.

A known example is marked "Vise-Lock-Plier Seattle-U.S.A." with the patent date.

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