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US Patent: 2,523,385
Lever And Cam Operating Means For Releasing Locking Pliers From Locked Position
Lawrence C. Mead - Turlock, CA

USPTO Classifications:

Tool Categories:
wrenches : pliers type wrenches : locking pliers


H. R. Basford Co. - San Francisco, CA

none listed

Patent Dates:
Applied: Feb. 06, 1946
Granted: Sep. 26, 1950

Patent Pictures:
Lawrence C. Mead patent September 26, 1950
USPTO pdf tiff
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The patent shares an adjustable center link with other L.C. Mead locking plier wrench patents. This patent's unique feature is the shape and location of the lock release lever.

One version of the H.R. BASFORD SAN FRANCISCO GRIPSO VISE PLIERS is an exact match for this patent, although the release lever is marked to reflect patent no. 2,514,130. Some GRIPSO VISE PLIERS also use Mead's March 6, 1951 patent (no. 2,543,922).

The specifications cite patent nos. 557,452, 557,453, 952,079, 1,294,689, 1,426,553, 1,568,934 and 2,462,709 as references.

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