| All Patents in class 81/108 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 42,489 | Apr. 26, 1864 | J.C. Johnson | Improvement in Gas-Tongs | pipe wrenches |
| 54,694 | May 15, 1866 | R. Cox | Pipe Wrench | pipe wrenches |
| 62,177 | Feb. 19, 1867 | J. Balmore | Improved Pipe-Tongs and Cutter | pipe wrenches |
| RE2,600 | May 14, 1867 | J. Balmore | Improvement in Pipe-Tongs and Cutter | pipe tongs |
| 78,047 | May 19, 1868 | J.L. Brierly | Improvement in Pipe-Wrench and Cutter | pipe wrenches |
| 87,972 | Mar. 16, 1869 | H. Richter | Gas Plier | pipe tongs |
| 182,492 | Sep. 19, 1876 | H.C. Stouffer | Pipe-Wrench | pipe tongs |
| 221,633 | Nov. 11, 1879 | J.H. Vinton | Pipe-Wrench | wrench handle components |
| 287,193 | Oct. 23, 1883 | J.L. Taylor | Pipe Wrench | pipe wrenches |
| 343,233 | Jun. 08, 1886 | A.H. Esten | Pipe-cutter | plumber |
| 343,668 | Jun. 15, 1886 | J.J. Looney | Pipe Wrench | pipe wrenches |
| 456,265 | Jul. 21, 1891 | S. Boothroyd | Wrench | wrench jaw components |
| 460,591 | Oct. 06, 1891 | E. Murphy | Pipe Wrench | pipe wrenches |
| 462,583 | Nov. 03, 1891 | A.A. Swift, B.W. Perrigo | Pipe Tongs | pipe tongs |
| 492,834 | Mar. 07, 1893 | G.W. Porter | Pipe Wrench | pipe wrenches |
