| All Patents in class 81/140 |
Patents 1 -
10
of 61
      |
| Picture | Number | Date | Patentee | Title |
 | 7,254X | Oct. 25, 1832 | H. King | Improvement in the Rack Wrench |
 | 13,597 | Sep. 25, 1855 | H.J. Behrens | Improvement in Wrenches for Turning Screw-Nuts |
 | 25,302 | Aug. 30, 1859 | D.G. Greene | Wrench |
 | 44,653 | Oct. 11, 1864 | J.W. Penney | Improved Wrench |
 | 57,769 | Sep. 04, 1866 | C. Richmond | Combined Wrench and Tool Holder |
 | 58,633 | Oct. 09, 1866 | W.D. Gold | Nut Wrench |
 | 154,680 | Sep. 01, 1874 | B.F. Joslyn | Wrenches |
 | 172,155 | Jan. 11, 1876 | O.B. North | Wrench |
 | 204,386 | May 28, 1878 | H.T. Winkler, J.H. Sievers | Wrench |
 | 206,851 | Aug. 13, 1878 | H.W. Atwater | Improvement in Clamps |
