| All Patents in class 81/175 |
Patents 1 -
15
of 69
      |
| Number | Date | Patentee | Title | Type |
| 19,954 | Apr. 13, 1858 | E.S. Scripture | Improvement in Screw-Wrenches | nut wrenches |
| 28,053 | May 01, 1860 | W.F. Beecher | Pipe-Wrench | pipe wrenches |
| 54,471 | May 01, 1866 | C.C. Webber | Improvement in Wrenches | screw adjust wrenches |
| 74,568 | Feb. 18, 1868 | E.R. Meeker | Combined Screw-Wrench and Claw-Hammer | wrench combination tools |
| 83,618 | Nov. 03, 1868 | E.T. Ford | Improvement In A Carriage-Wrench | axle nut wrenches that lock nut to wheel hub |
| 87,133 | Feb. 23, 1869 | B.F. Bee | Improved Mode of Constructing Wrenches, or Levers for Turning Taps | tap wrenches and die stocks |
| 102,690 | May 03, 1870 | S. Lynch | Pipe Tongs | pipe tongs |
| 111,647 | Feb. 07, 1871 | E. Simonds, G.W. Huntoon | Tap Wrench | tap wrenches and die stocks |
| 114,703 | May 09, 1871 | J.N. Newell | Improvement in Wrenches | screw adjust wrenches |
| 164,867 | Jun. 22, 1875 | J. Norton | Combined Wrench and Oiler | wrench combination tools |
| 169,557 | Nov. 02, 1875 | A.B. Lipsey | Improvement in Wrenches | screw adjust wrenches |
| 174,745 | Mar. 14, 1876 | W.J. Squire | Improved Wrench | quick adjust wrenches |
| 178,162 | May 30, 1876 | E.H. Knight | Wrench | screw adjust wrenches |
| 185,958 | Jan. 02, 1877 | A. Dunnebake, C. Peterson | Improvement in Gas-Fitting Wrenches | pipe wrenches |
| 198,264 | Dec. 18, 1877 | E.T. Barlow | Screw-Wrench | screw adjust wrenches |
