| All Patents in class 81/140 |
Patents 1 -
15
of 61
      |
| Number | Date | Patentee | Title | Type |
| 7,254X | Oct. 25, 1832 | H. King | Improvement in the Rack Wrench | nut wrenches |
| 13,597 | Sep. 25, 1855 | H.J. Behrens | Improvement in Wrenches for Turning Screw-Nuts | quick adjust wrenches |
| 25,302 | Aug. 30, 1859 | D.G. Greene | Wrench | nut wrenches |
| 44,653 | Oct. 11, 1864 | J.W. Penney | Improved Wrench | quick adjust wrenches |
| 57,769 | Sep. 04, 1866 | C. Richmond | Combined Wrench and Tool Holder | nut wrenches |
| 58,633 | Oct. 09, 1866 | W.D. Gold | Nut Wrench | nut wrenches |
| 154,680 | Sep. 01, 1874 | B.F. Joslyn | Wrenches | nut wrenches |
| 172,155 | Jan. 11, 1876 | O.B. North | Wrench | quick adjust wrenches |
| 204,386 | May 28, 1878 | H.T. Winkler, J.H. Sievers | Wrench | screw adjust wrenches |
| 206,851 | Aug. 13, 1878 | H.W. Atwater | Improvement in Clamps | clamps |
| 221,305 | Nov. 04, 1879 | W.A. Heath | Wrench | quick adjust wrenches |
| 221,989 | Nov. 25, 1879 | J. Woolford | Ratchet-Wrench | self-adjust wrenches |
| 285,449 | Sep. 25, 1883 | C.D. Newlin, C.D. Wells | Wrench | quick adjust wrenches |
| 289,347 | Nov. 27, 1883 | J. Houlehan | Wrench | quick adjust wrenches |
| 309,084 | Dec. 09, 1884 | F.G. Osborn | Wrench | quick adjust wrenches |
