| All Patents in class 81/155 |
Patents 1 -
15
of 31
      |
| Number | Date | Patentee | Title | Type |
| 7,362 | May 14, 1850 | N. Colver | Revolving-Jaw Wrench | nut wrenches |
| 13,456 | Aug. 21, 1855 | J.D. Dale | Dale's Adjustable Reversible Ratchet-Wrench | ratchet wrenches |
| 25,571 | Sep. 27, 1859 | K. Kuhlenschmidt | Nut Wrench | screw adjust wrenches |
| 28,300 | May 15, 1860 | G.B. Phillips | Improved Slide Wrench | nut wrenches |
| 31,034 | Jan. 01, 1861 | E. Ripley | Improvements in Wrenches for Turning Pipes, Round Bolts, and Similar Articles | pipe wrenches |
| 54,820 | May 15, 1866 | A.G. Page | Improved Pipe-Tongs | pipe tongs |
| 54,888 | May 22, 1866 | G.P. Ganster | Improvement in Wrenches | screw adjust wrenches |
| 62,062 | Feb. 12, 1867 | J. Peace | Pipe Tongs and Cutter | pipe tongs |
| 65,111 | May 28, 1867 | J.L. Ordner | Pipe Wrench | wrench jaw components |
| 82,627 | Sep. 29, 1868 | G.N. Munger | Engravers Vise | vises |
| 133,402 | Nov. 26, 1872 | O. Bonneville | Wrenches | ratchet wrenches |
| 155,862 | Oct. 13, 1874 | C.W. Crenshaw | Improvement in screw-presses | screw presses |
| 166,020 | Jul. 27, 1875 | W.R. Baker, R.H. McCormick | Wrench | wrench jaw components |
| 172,241 | Jan. 11, 1876 | E.T. Barlow | Monkey-Wrench | quick adjust wrenches |
| 174,155 | Feb. 29, 1876 | J. Riley | Improved Adjustable Wrench | screw adjust wrenches |
