| All Patents in class 81/143 |
Patents 1 -
10
of 33
      |
| Picture | Number | Date | Patentee | Title |
 | 12,590 | Mar. 27, 1855 | L.D. Gilman | Screw-Wrench |
 | 14,571 | Apr. 01, 1856 | P. McManus | Wrench |
 | 37,459 | Jan. 20, 1863 | N. Porter | Improvement in Wrenches |
 | 42,062 | Mar. 29, 1864 | J.S. Arthur | Improved Sliding Nut for Wrenches and Other Tools |
 | 177,676 | May 23, 1876 | E.H. Beach | Wrench |
 | 231,763 | Aug. 31, 1880 | W.C. Coddington | Wrench |
 | 246,487 | Aug. 30, 1881 | A.G. Foster | Wrench |
 | 305,961 | Sep. 30, 1884 | H. Reber | Improvement in Monkey-Wrenches |
 | 323,017 | Jul. 28, 1885 | G.S. Armstrong | Pipe and Monkey Wrench |
 | 336,262 | Feb. 16, 1886 | C.C. Runyan | Improvements in Monkey-Wrenches |
