| All Patents in class 81/372 |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 2,201,918 | May 21, 1940 | W. Petersen | Wrench | locking pliers |
| 2,299,454 | Oct. 20, 1942 | H.C. Borchers | Wrench | locking pliers |
| 2,398,209 | Apr. 09, 1946 | F.J. Clemens | Hand Tool | pliers |
| 2,521,276 | Sep. 05, 1950 | F.W. Lampe | Toggle Action Self-Locking Wrench and/or Nonlocking Pliers | locking pliers |
| 2,589,511 | Mar. 18, 1952 | C.H. Redman | Release Mechanism for Toggle Actuated Type Wrenches | locking pliers |
| 2,592,803 | Apr. 15, 1952 | J.G. Heim | Release And Adjusting Means For Vise-Type Wrenches | locking pliers |
| 2,705,899 | Apr. 12, 1955 | H.A. Berger | Release Mechanism For A Lever Jaw Wrench | locking pliers |
| 2,711,663 | Jun. 28, 1955 | W. Petersen | Toggle Locking Wrenches | locking pliers |
| 2,853,910 | Sep. 30, 1958 | W. Petersen | Latch Means for Plier type Toggle Wrench | locking pliers |
| 2,997,903 | Aug. 29, 1961 | F. Rommel, R. Rommel | Pliers With Self-Adjusting Toggle Means | locking pliers |
