| All Patents in class 81/143 |
Patents 1 -
15
of 33
      |
| Number | Date | Patentee | Title | Type |
| 12,590 | Mar. 27, 1855 | L.D. Gilman | Screw-Wrench | quick adjust wrenches |
| 14,571 | Apr. 01, 1856 | P. McManus | Wrench | nut wrenches |
| 37,459 | Jan. 20, 1863 | N. Porter | Improvement in Wrenches | quick adjust wrenches |
| 42,062 | Mar. 29, 1864 | J.S. Arthur | Improved Sliding Nut for Wrenches and Other Tools | quick adjust wrenches |
| 177,676 | May 23, 1876 | E.H. Beach | Wrench | nut wrenches |
| 231,763 | Aug. 31, 1880 | W.C. Coddington | Wrench | quick adjust wrenches |
| 246,487 | Aug. 30, 1881 | A.G. Foster | Wrench | wrench combination tools |
| 305,961 | Sep. 30, 1884 | H. Reber | Improvement in Monkey-Wrenches | screw adjust wrenches |
| 323,017 | Jul. 28, 1885 | G.S. Armstrong | Pipe and Monkey Wrench | pipe and nut combination wrenches |
| 336,262 | Feb. 16, 1886 | C.C. Runyan | Improvements in Monkey-Wrenches | quick adjust wrenches |
| 355,444 | Jan. 04, 1887 | C. Farner | Wrench | quick adjust wrenches |
| 425,647 | Apr. 15, 1890 | T. Young | Wrench | quick adjust wrenches |
| 454,678 | Jun. 23, 1891 | M. Cummins | Wrench | quick adjust wrenches |
| 492,626 | Feb. 28, 1893 | F.B. Ide | Hand Wrench | quick adjust wrenches |
| 513,594 | Jan. 30, 1894 | W.A. Papoun | Wrench | quick adjust wrenches |
