| All Patents in class 81/391 |
Patents 31 -
43
of 43
      |
| Number | Date | Patentee | Title | Type |
| 1,244,966 | Oct. 30, 1917 | J. Eifel | Wrench | pliers type wrenches |
| 1,244,967 | Oct. 30, 1917 | J. Eifel | Wrench | pliers type wrenches |
| 1,319,946 | Oct. 28, 1919 | W.L. Bessolo | Quick Adjustable Wrench | pipe wrenches |
| 1,445,280 | Feb. 13, 1923 | J. Jordan | Wrench | pliers type wrenches |
| 1,494,015 | May 13, 1924 | K. Potschner | Wrench | pliers type wrenches |
| 1,680,956 | Aug. 14, 1928 | E.H. Simonsen | Wrench | quick adjust wrenches |
| 1,752,425 | Apr. 01, 1930 | A.K. Ersland | Wrench | pliers type wrenches |
| 1,862,817 | Jun. 14, 1932 | J. Eifel | Wrench | pliers type wrenches |
| 1,866,426 | Jul. 05, 1932 | J.C. Siegrist | Combination Wrench | combination tools |
| 2,320,303 | May 25, 1943 | C.O. Ross | Mechanic's Tool | locking pliers |
| 2,397,095 | Mar. 26, 1946 | M.W. Emmett | Plier Wrench | pliers |
| 2,905,038 | Sep. 22, 1959 | D.D. Paden | Toggle Wrench With Slidable Adjustment for Movable Jaw | locking pliers |
| 3,257,878 | Jun. 28, 1966 | A.F. Andersen | Adjusting Ratcheting Wrench Having Rack Means For Immobilizing The Jaws | quick adjust wrenches |
