| All Patents in class 81/107 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 15,184 | Jun. 24, 1856 | G.A. Jenks | Wrench for Gas-Pipe, etc. |
 | 56,166 | Jul. 10, 1866 | B. Boardman | Improved Tool |
 | 57,621 | Aug. 28, 1866 | A. Call | Improved Pipe-Wrench |
 | 133,804 | Dec. 10, 1872 | A. Secor | Pipe Wrench |
 | 166,428 | Aug. 03, 1875 | H.C. Stouffer | Improvement in Pipe-Wrenches |
 | 335,192 | Feb. 02, 1886 | W.A. Hathaway | Wrench |
 | 335,193 | Feb. 02, 1886 | J.T. Hayden | Pipe Wrench |
 | 473,542 | Apr. 26, 1892 | M.J. Wilson | Pipe Wrench |
 | 483,336 | Sep. 27, 1892 | M.J. Wilson | Pipe and Nut Wrench |
 | 523,691 | Jul. 31, 1894 | D.P. Stanton | Pipe Wrench |
