| All Patents in class 81/161 |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 23,857 | May 03, 1859 | G.B. Phillips | Improvement in Slide-Wrenches for Turning Gas Pipes and Other Round Articles | pipe wrenches |
| 65,679 | Jun. 11, 1867 | D.A. Kellogg | Improvement in Monkey-Wrench | quick adjust wrenches |
| 102,390 | Apr. 26, 1870 | G. Macardle, L. Frey | Improvement in Pipe and Bolt-Wrenches | pipe wrenches |
| 234,994 | Nov. 30, 1880 | W.H. Lightcap | Wrench | quick adjust wrenches |
| 294,642 | Mar. 04, 1884 | O.A. Lee | Wrench | pipe and nut combination wrenches |
| 364,765 | Jun. 14, 1887 | R.B. Marks | Improvements in Screw-Wrenches | screw adjust wrenches |
| 439,201 | Oct. 28, 1890 | F.L. Smith | Monkey Wrench | quick adjust wrenches |
| 495,577 | Apr. 18, 1893 | J.A. Barker | Wrench | quick adjust wrenches |
| 520,392 | May 22, 1894 | C. Carlson | Wrench | quick adjust wrenches |
| 554,994 | Feb. 18, 1896 | W. Holmes, P.D. Dye | Pipe and Nut Wrench | pipe and nut combination wrenches |
| 583,217 | May 25, 1897 | R.S. Sample | Wrench | screw adjust wrenches |
| 589,166 | Aug. 31, 1897 | F.F. De Voe | Quick Action Wrench | quick adjust wrenches |
| 589,668 | Sep. 07, 1897 | C.M. Tussing, H.S. Noble | Wrench | pipe and nut combination wrenches |
| 617,998 | Jan. 17, 1899 | F.T. Verharen | Wrench | quick adjust wrenches |
| 629,045 | Jul. 18, 1899 | A. McKaig | Wrench | nut wrenches |
