| All Patents in class 81/378 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 1,568,934 | Jan. 05, 1926 | R.J. Bristol, W.C. Tull | Wrench | locking pliers |
| 2,312,947 | Mar. 02, 1943 | A.A. Westman | Wrench | locking pliers |
| 2,519,973 | Aug. 22, 1950 | L.C. Mead | Wrench Type Pliers | locking pliers |
| 2,524,689 | Oct. 03, 1950 | A.A. Westman | Self-Locking Wrench | locking pliers |
| 2,751,801 | Jun. 26, 1956 | J.L. Hostetter | Self-Adjusting Plier-Type Toggle Locking Wrench | locking pliers |
| 2,814,222 | Nov. 26, 1957 | E.G. Sanders | Ferrule Crimping Pliers with Replaceable Jaws | pliers |
