| All Patents in class 81/171 |
Patents 1 -
15
of 172
      |
| Number | Date | Patentee | Title | Type |
| 2,054 | Apr. 16, 1841 | L. Coes | Loring Coes Screw Wrench | nut wrenches |
| RE139 | Jun. 26, 1849 | L. Coes | Improvement In Screw-Wrenches | nut wrenches |
| 12,410 | Feb. 20, 1855 | S.H. Noble | Screw-Wrench | quick adjust wrenches |
| 16,844 | Mar. 17, 1857 | B.F. Joslyn | Screw-Wrench | nut wrenches |
| 21,196 | Aug. 17, 1858 | F.D. Hayward | Nut Wrench | nut wrenches |
| 24,175 | May 24, 1859 | H.J. Behrens | Improved Gripping Wrench | pipe wrenches |
| 25,681 | Oct. 04, 1859 | S. Smith | Saw Set | saw sets |
| 39,900 | Sep. 15, 1863 | T.H. Dodge | Improvement in Screw-Wrenches | nut wrenches |
| 40,590 | Nov. 10, 1863 | G.C. Taft | Improvement in Wrenches | nut wrenches |
| 41,747 | Feb. 23, 1864 | G.C. Taft | Improved Screw-Wrench | nut wrenches |
| 50,364 | Oct. 10, 1865 | L. Jordan, L.E. Smith | Improved Wrench | nut wrenches |
| 51,617 | Dec. 19, 1865 | E.M. Thurston, J.W. Penney | Improved Wrench | screw adjust wrenches |
| 52,968 | Mar. 06, 1866 | A.G. Coes | Improvement In Wrenches | nut wrenches |
| 54,471 | May 01, 1866 | C.C. Webber | Improvement in Wrenches | screw adjust wrenches |
| 55,190 | May 29, 1866 | W.W. Wills | Improvemetnt in Pipe-Wrenches | screw adjust wrenches |
