| All Patents in class 81/181 |
Patents 1 -
15
of 53
      |
| Number | Date | Patentee | Title | Type |
| 41,554 | Feb. 09, 1864 | W. Webster | Improvement in Wrenches | combination tools |
| 45,496 | Dec. 20, 1864 | H. Herbert | Improvement in Pipe-Tongs | wrench jaw components |
| 57,506 | Aug. 28, 1866 | H. Herbert | Improvement in Pipe-Tongs | pipe tongs |
| 60,380 | Dec. 11, 1866 | J.V. Jepson | Improved Tool for Cutting Tubes | pipe wrenches |
| 62,177 | Feb. 19, 1867 | J. Balmore | Improved Pipe-Tongs and Cutter | pipe wrenches |
| 67,987 | Aug. 20, 1867 | J.S. Kalb | Improvement in Wrench and Pruning-Shears Combined | combination tools |
| 86,322 | Jan. 26, 1869 | P.C. Rowe | Wrench | combination tools |
| 94,241 | Aug. 31, 1869 | J.C. Chapman, A. Robes | Improvement in Pipe-Wrench and Pipe-Cutter | pipe wrenches |
| 96,776 | Nov. 16, 1869 | J.W. Close | Improvement in Combined Screw and Pipe-Wrench and Pipe-Cutter | combination tools |
| 109,747 | Nov. 29, 1870 | J.W. Mahlon | Pipe Vise | pipe and chain vises |
| 114,939 | May 16, 1871 | D. Harrigan | Improvement in Pipe-Cutters | pipe jaw attachments for wrenches |
| 124,654 | Mar. 19, 1872 | L. Anderson | Improvement In Pipe-Wrenches | pipe tongs |
| 133,092 | Nov. 19, 1872 | A. Gomersall | Improvement in Pipe-Tongs | pipe tongs |
| 134,440 | Dec. 31, 1872 | J.E. Roache | Pipe-Tongs and Cutters | pipe tongs |
| 147,699 | Feb. 17, 1874 | L.F. Smith | Wrenches | wrench combination tools |
