| All Patents in class 81/170 |
Patents 1 -
10
of 105
      |
| Picture | Number | Date | Patentee | Title |
 | 1,659 | Jun. 27, 1840 | H.W. Hewet | Screw Wrench |
 | 17,531 | Jun. 09, 1857 | E.J. Worcester | Improved Adjustable Fork-Jaw Wrench |
 | 22,122 | Nov. 23, 1858 | J. Hyde | Screw-Wrench |
 | 29,623 | Aug. 14, 1860 | W. Russell | Wrench and Vise |
 | 31,826 | Mar. 26, 1861 | C.H. Reynolds | Improved Screw-Wrench |
 | 38,316 | Apr. 28, 1863 | A.Y. McDonald | Improvement in Screw-Wrenches |
 | 41,995 | Mar. 22, 1864 | H.W. Hewet | Hewet Union Wrench |
 | 42,961 | May 31, 1864 | W.C. Noyes | Wrench |
 | 47,067 | Mar. 28, 1865 | A.Y. McDonald | Improved Wrench |
 | 49,128 | Aug. 01, 1865 | H.W. Love | Improved Screw-Wrench |
