| All Patents in class 81/99 |
Patents 1 -
10
of 110
      |
| Picture | Number | Date | Patentee | Title |
 | 18,135 | Sep. 08, 1857 | H.M. Clark | Hinged Claw and Screw-Adjusting Gripper Wrench |
 | 30,997 | Dec. 18, 1860 | A.E. Wenzel | Automatic Lathe Dog |
 | 34,498 | Feb. 25, 1862 | A.H. Pierce, F. Hollen | Nut Wrench |
 | 36,289 | Aug. 26, 1862 | H.V. Faries | Improved Wrench for Grasping and Turning Gas-Pipes, Bolts and Any Article of Cylindrical Form |
 | 37,395 | Jan. 13, 1863 | H. Getty | Improved Self-Adjusting Pipe Tongs |
 | 44,703 | Oct. 18, 1864 | J.R. Brown | Improved Pipe-Wrench |
 | 65,465 | Jun. 04, 1867 | J.B. Barnes | Improvement in Pipe and Stud-Wrenches |
 | 78,176 | May 26, 1868 | J.B. Barnes | Improvement in Wrenches |
 | 118,891 | Sep. 12, 1871 | J.A. Wilcox, W.S. Wilcox | Improvement in Pipe Wrench |
 | 121,372 | Nov. 28, 1871 | H.A. Hyle | Improvement in Wrenches |
