| All Patents in class 81/DIG.3 |
Patents 31 -
40
of 40
      |
| Number | Date | Patentee | Title | Type |
| 1,377,178 | May 10, 1921 | A.G. Andree | Wrench | basin wrenches |
| 1,391,251 | Sep. 20, 1921 | M.I. Ginsburg | Slip-jaw wrench | screw adjust wrenches |
| 1,430,955 | Oct. 03, 1922 | J.J. Demers | Wrench | wrench components |
| 1,540,745 | Jun. 09, 1925 | Z.M. Bain | Pliers | pliers |
| 1,568,934 | Jan. 05, 1926 | R.J. Bristol, W.C. Tull | Wrench | locking pliers |
| 1,569,117 | Jan. 12, 1926 | E.R. Carpenter | Wrench | socket wrenches |
| 1,599,162 | Sep. 07, 1926 | J.J. Brown | Wrench | wrench adjustment locks |
| 1,728,282 | Sep. 17, 1929 | E.J. Evans | Monkey Wrench | quick adjust wrenches |
| 1,749,002 | Mar. 04, 1930 | E. Nester, J.J. Schneider | Wrench | wrench adjustment locks |
| 5,644,957 | Jul. 08, 1997 | J.H. Hoff, E.T. Gustafson | Adjustable Wrench with Worm Locking Mechanism | |
