| All Patents in class 81/110 |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 132,819 | Nov. 05, 1872 | D.E. Eaton | Improvement in Pipe-Wrenches | pipe wrenches |
| 178,902 | Jun. 20, 1876 | T. Booth | Pipe-Wrench | pliers type wrenches |
| 253,089 | Jan. 31, 1882 | W. O'Connell, Jr. | Wrench | pipe wrenches |
| 275,106 | Apr. 03, 1883 | H.B. Williams | Pipe Wrench | pipe wrenches |
| 291,129 | Jan. 01, 1884 | W.C. Baskin | Wrench | quick adjust wrenches |
| 382,799 | May 15, 1888 | R. Copland | Pipe Wrench | pipe wrenches |
| 382,975 | May 15, 1888 | B.R. Hagar | Wrench | pipe wrenches |
| 440,294 | Nov. 11, 1890 | M.J. Wilson | Improvements in Pipe-Wrenches | pipe wrenches |
| 446,547 | Feb. 17, 1891 | H.A. Margason, W.E. Goodnow | Pipe Wrench | pipe wrenches |
| 446,592 | Feb. 17, 1891 | D. McManus, T.J. Duncan | Pipe Wrench | pipe wrenches |
| 463,263 | Nov. 17, 1891 | M.J. Wilson | Wrench | quick adjust wrenches |
| 468,601 | Feb. 09, 1892 | G.W. Gorsuch | Pipe Wrench and Cutter | pipe wrenches |
| 484,307 | Oct. 11, 1892 | C.C. Fields, W.S. Duvall | Wrench | quick adjust wrenches |
| 520,529 | May 29, 1894 | K.A. Klose | Wrench | pipe wrenches |
| 542,265 | Jul. 09, 1895 | K.A. Klose | Pipe Wrench | pipe wrenches |
