| All Patents in class 81/98 |
Patents 1 -
10
of 97
      |
| Picture | Number | Date | Patentee | Title |
 | 6,077 | Jan. 30, 1849 | A. Hay | Improved Hinged Claw-Wrench |
 | 26,530 | Dec. 20, 1859 | G. Smith | Improvement in Grippers for Grasping and Turning Cylindrical Articles |
 | 31,034 | Jan. 01, 1861 | E. Ripley | Improvements in Wrenches for Turning Pipes, Round Bolts, and Similar Articles |
 | 54,278 | May 01, 1866 | D. Bannister | Improvement in Gas Pipe Tongs |
 | 65,588 | Jun. 11, 1867 | A.M. Olds | Improved Self-Adjusting Wrench |
 | 74,697 | Feb. 18, 1868 | W. Kenyon, Jr. | Improvement in Pipe-Tongs |
 | 115,678 | Jun. 06, 1871 | W.H. Barwick | Improvement in Pipe-Wrenches |
 | 132,579 | Oct. 29, 1872 | G.A. Holden | Improvment in Tubing-Tongs |
 | 135,773 | Feb. 11, 1873 | W.H. Burton | Improvement in Pipe-Wrenches |
 | 143,908 | Oct. 21, 1873 | D.D. Ingram | Improved Pipe-Wrench |
