| All Patents in class 81/135 |
Patents 31 -
38
of 38
      |
| Number | Date | Patentee | Title | Type |
| 738,728 | Sep. 08, 1903 | A.J. Mayer | Wrench | quick adjust wrenches |
| 763,105 | Jun. 21, 1904 | B.H. Morrison | Ratchet Wrench | ratchet wrenches |
| 890,111 | Jun. 09, 1908 | F.E. Walden | Wrench | quick adjust wrenches |
| 936,174 | Oct. 05, 1909 | E.L. Scribner | Wrench | quick adjust wrenches |
| 938,319 | Oct. 26, 1909 | E.D. Hamilton | Wrench | pipe and nut combination wrenches |
| 1,407,528 | Feb. 21, 1922 | W. Gordon | Wrench | quick adjust wrenches |
| 2,499,609 | Mar. 07, 1950 | J.A. Riordan | Quick-Acting Wrench | quick adjust wrenches |
| 5,209,144 | May 11, 1993 | G. Lu | Dual-Purpose Quickly Adjustable Wrench | pipe and nut combination wrenches |
