| All Patents in class 81/136 |
Patents 1 -
15
of 27
      |
| Number | Date | Patentee | Title | Type |
| 59,634 | Nov. 13, 1866 | W.M. Owen | Improvement in Wrenches | quick adjust wrenches |
| 139,174 | May 20, 1873 | F.H. Merrill | Improved Pipe Tongs | pipe tongs |
| 231,303 | Aug. 17, 1880 | T.P. Franke | Wrench | pipe wrenches |
| 251,635 | Dec. 27, 1881 | H.W. Reed | Improved Monkey Wrench | quick adjust wrenches |
| 278,553 | May 29, 1883 | J. Houlehan | Improved Monkey Wrench | quick adjust wrenches |
| 309,389 | Dec. 16, 1884 | W.P. Heffron | Wrench | quick adjust wrenches |
| 326,680 | Sep. 22, 1885 | K. Seifried | Wrench | quick adjust wrenches |
| 342,643 | May 25, 1886 | H.G. Sellman | Improved Socket Wrench | brace wrenches |
| 422,767 | Mar. 04, 1890 | I.C. Gray | Improved Sliding-Jaw Wrench | quick adjust wrenches |
| 441,188 | Nov. 25, 1890 | W.E. Murbarger | Pipe Wrench | pipe wrenches |
| 451,991 | May 12, 1891 | J.A. Abbots | Carriage-Wrench | axle nut wrenches |
| 455,225 | Jun. 30, 1891 | W.F. Mercer | Wrench | quick adjust wrenches |
| 517,074 | Mar. 27, 1894 | O.C. Stanley | Wrench | quick adjust wrenches |
| 533,049 | Jan. 29, 1895 | F.A. Carrithers | Wrench | pipe wrenches |
| 545,016 | Aug. 20, 1895 | S.H. Hackney | Wrench | quick adjust wrenches |
