| All Patents in class 81/91.1 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 126,506 | May 07, 1872 | W.C. Westerfield | Improvement in Pipe-Wrenches |
 | 159,234 | Jan. 26, 1875 | J.B. Westwick | Combined Pipe-Tongs and Wrench |
 | 320,872 | Jun. 23, 1885 | J.F. Guthrie, Jr. | Pipe Wrench |
 | 354,718 | Dec. 21, 1886 | F.C. Sawhill, T.D. McCarty | Pipe Wrench |
 | 416,792 | Dec. 10, 1889 | J.A. Maloney | Pipe Wrench |
 | 441,020 | Nov. 18, 1890 | A.A. Peterkin | Pipe Wrench |
 | 498,638 | May 30, 1893 | G. Englund | Tool For Turning Pipes, Car Axles, Etc. |
 | 590,562 | Sep. 28, 1897 | T.J. Baker | Pipe or Rod Wrench |
 | 615,643 | Dec. 06, 1898 | J.F. Strahle | Wrench |
 | 654,176 | Jul. 24, 1900 | O. McNelly, H. McNelly, J.F. Janney | Pipe Wrench |
