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US Patent: 5,351,585
Large Capacity Locking Pliers
Terry G. Leseberg - Marysville, KS
Gene L. Tyser - Wilber, NE

USPTO Classifications:
81/370, 81/426

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Petersen Manufacturing Company - DeWitt, NE

Petersen Manufacturing Company - DeWitt, NE


Patent Dates:
Applied: Aug. 11, 1993
Granted: Oct. 04, 1994

Patent Pictures:
Terry G. Leseberg and Gene L. Tyser patent October 4, 1994
USPTO pdf tiff
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The patent focuses on the shape and geometry of jaws for locking pliers that enables them to grip relatively large objects compared to more traditional pliers type jaws.

The jaw design was incorporated into the VISE-GRIP(tm) line of locking plier wrenches.

The patent references prior art in patent numbers D240,476, 928,849, 2,558,440, 2,561,682, 2,711,663, 3,195,382, 3,336,825, 3,585,704, 3,894,451, 4,505,011, 4,541,312, 4,546,680, 4,709,601, 4,730,524, 4,989,479, and 5,222,386.

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