| All Patents in class 81/166 |
Patents 1 -
15
of 61
      |
| Number | Date | Patentee | Title | Type |
| 12,935 | May 22, 1855 | F.S. Coburn | Improved Screw-Wrench | screw adjust wrenches |
| 18,135 | Sep. 08, 1857 | H.M. Clark | Hinged Claw and Screw-Adjusting Gripper Wrench | pipe wrenches |
| 33,223 | Sep. 03, 1861 | J.A. Wilcox | Instrument For Turning Pipe or Other Round Rods | pipe wrenches |
| 55,109 | May 29, 1866 | J.C. Jackson | Improvement in Screw-Wrenches | screw adjust wrenches |
| 65,489 | Jun. 04, 1867 | L. Jordan | Nut Wrench | wrench jaw components |
| 89,517 | Apr. 27, 1869 | G.C. Taft | Improvement in Wrench | wrench jaw components |
| 104,913 | Jun. 28, 1870 | J.A. Wilcox | Improvement In Pipe-Wrench | pipe wrenches |
| 112,108 | Feb. 28, 1871 | E. Beach | Wrench | quick adjust wrenches |
| 133,902 | Dec. 10, 1872 | T. Stone | Pipe Wrench | pipe wrenches |
| 145,929 | Dec. 30, 1873 | J.R. Brown | Pipe-Tongs | pipe tongs |
| 158,548 | Jan. 05, 1875 | B.L. Walker | Wrenches | nut wrenches |
| 197,459 | Nov. 27, 1877 | C.A. Corman | Wrench | combination tools |
| 206,795 | Aug. 06, 1878 | A.H. Jarecki | Pipe-Tongs | pipe tongs |
| 218,195 | Aug. 05, 1879 | H. Rhyn | Pipe-Wrench | pipe wrenches |
| 260,771 | Jul. 11, 1882 | C.H. Miller | Monkey Wrench | screw adjust wrenches |
