| All Patents in class 81/148 |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 2,165 | Jul. 10, 1841 | J. Brett | Improvement in Key-Wrenches | wedge adjust wrenches |
| 20,211 | May 11, 1858 | J. McKenzie | Improved Mode of Fixing the Movable Jaws of Adjustable Wrenches | wedge adjust wrenches |
| 86,534 | Feb. 02, 1869 | C. Hall | Improvement in Screw-Wrench | quick adjust wrenches |
| 96,287 | Oct. 26, 1869 | R.M. Thompson | Wrench | quick adjust wrenches |
| 105,604 | Jul. 19, 1870 | O.J. Smith | Wrench | quick adjust wrenches |
| 293,175 | Feb. 05, 1884 | J. Jewell | Pipe Wrench | pipe wrenches |
| 350,199 | Oct. 05, 1886 | H. Hubler | Improvement in Pipe-Tongs and Cutters | pipe tongs |
| 457,050 | Aug. 04, 1891 | D.A. Kershner | Wrench | wedge adjust wrenches |
| 460,403 | Sep. 29, 1891 | W.H. Rogers | Nut Wrench | quick adjust wrenches |
| 514,993 | Feb. 20, 1894 | W. Houghton | Improved Monkey Wrench | wedge adjust wrenches |
| 527,643 | Oct. 16, 1894 | A.L. Winge | Wrench | quick adjust wrenches |
| 567,715 | Sep. 15, 1896 | W. Houghton | Pipe Wrench | pipe wrenches |
| 580,027 | Apr. 06, 1897 | A.P. Wiltse | Wrench | wedge adjust wrenches |
| 591,553 | Oct. 12, 1897 | J.H. Johnson | Wrench | quick adjust wrenches |
| 592,666 | Oct. 26, 1897 | E.B. Sankey | Monkey Wrench | quick adjust wrenches |
