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US Patent: 1,517,162
Plier Wrench
Percival F. King - New York, NY

USPTO Classifications:
81/151, 81/339, 81/354, 81/415

Tool Categories:


Not known to have been produced

Edw. Thorpe
A. M. Henry

Patent Dates:
Applied: Aug. 09, 1923
Granted: Nov. 25, 1924

Patent Pictures: [ 1 | 2 ]
Percival F. King patent November 25, 1924 (option 1)
USPTO pdf tiff
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Parallel jaw pliers where one jaw slides on a slightly arc shaped guide connected to the second jaw, and both jaws are connected by pivots to a primary "pliers" type crossed handle. A cam face on one of the "primary" jaws forces the arc shaped guide tight against the "moving" jaw.

Compare to King's earlier patent no. 1,438,442. A "KING JOHNSON PLIER" marked with the Dec. 12, 1922 patent date actually resembles the 2nd form described in the current patent.

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