| All Patents in class 81/176 |
Patents 1 -
15
of 46
      |
| Number | Date | Patentee | Title | Type |
| 1,720 | Aug. 12, 1840 | J. Keane, T. Keane, S. Kane | Screw-Wrench | screw adjust wrenches |
| 14,779 | Apr. 29, 1856 | B. Rowe | Wrench | screw adjust wrenches |
| 31,693 | Mar. 12, 1861 | G.B. Phillips | Improvements in Wagon-Wrenches | axle nut wrenches |
| 56,460 | Jul. 17, 1866 | A. Stover | Improvement in Screw-Wrenches | screw adjust wrenches |
| 69,911 | Oct. 15, 1867 | D. Harrigan | Improvement in Wrenches | angle adjustable wrenches |
| 117,679 | Aug. 01, 1871 | G.B. Phillips | Improvement in Wrenches | wrenches |
| 141,289 | Jul. 29, 1873 | A. Partridge | Improvement in Screw-Wrenches | nut wrenches |
| 157,968 | Dec. 22, 1874 | D. McFarland | Wrenches | screw adjust wrenches |
| 179,546 | Jul. 04, 1876 | H.W. Evans | Improvements in Pipe Cutters and Wrenches | wrench combination tools |
| 202,582 | Apr. 16, 1878 | T.H. Phillips | Wrench | screw adjust wrenches |
| 222,484 | Dec. 09, 1879 | D.P. Foster | Improvement in Pipe-Wrenches | pipe wrenches |
| 251,635 | Dec. 27, 1881 | H.W. Reed | Improved Monkey Wrench | quick adjust wrenches |
| 447,163 | Feb. 24, 1891 | J. Ryan | Screw Wrench | screw adjust wrenches |
| 513,233 | Jan. 23, 1894 | B. Dunn, J. Hardy | Nut Wrench | nut wrenches |
| 532,634 | Jan. 15, 1895 | C.E. Billings | Wrench | screw adjust wrenches |
