| All Patents in class 81/146 |
Patents 1 -
10
of 34
      |
| Picture | Number | Date | Patentee | Title |
 | 8,922 | May 04, 1852 | A. Hotchkiss | Adjustable Screw-Slide Wrench |
 | 19,954 | Apr. 13, 1858 | E.S. Scripture | Improvement in Screw-Wrenches |
 | 38,316 | Apr. 28, 1863 | A.Y. McDonald | Improvement in Screw-Wrenches |
 | 76,519 | Apr. 07, 1868 | A.S. Petrie | Improvement inWrenches |
 | 109,949 | Dec. 06, 1870 | E.S. Scripture | Improved Mode of Constructing, Applying, and Managing a Pawl When Applied to a Notch or Tooth-Slide Wrench |
 | 132,057 | Oct. 08, 1872 | O.W. Cutler, T. Cooper | Improvement in Adjustable Slide-Wrenches |
 | 144,036 | Oct. 28, 1873 | E.S. Scripture | Wrenches |
 | 171,333 | Dec. 21, 1875 | J.A. White | Pipe-Wrench |
 | 186,197 | Jan. 16, 1877 | P. Chapin, Sr. | Improvements Pertaining to Adjustable Wrenches |
 | 331,189 | Nov. 24, 1885 | J. Du Shane | Rapid Transit Wrench |
