| All Patents in class 81/120 |
Patents 1 -
10
of 47
      |
| Picture | Number | Date | Patentee | Title |
 | 35,971 | Jul. 22, 1862 | J.H. Doolittle | Pipe Wrench |
 | D5,017 | Jun. 20, 1871 | T.K. Cook | Design For a Pipe-Wrench |
 | 131,695 | Sep. 24, 1872 | J.L. Mason | Improvement in Fruit-Jars |
 | 141,477 | Aug. 05, 1873 | S.W. Wakefield | Wrenches |
 | 154,445 | Aug. 25, 1874 | D.U. Beecher | Improvement in Hose-Spanners |
 | 167,368 | Aug. 31, 1875 | G.W. Waitt | Improvement in Pipe-Wrenches |
 | 171,353 | Dec. 21, 1875 | J. Conway | Wrench-Nut |
 | 203,822 | May 21, 1878 | D. Fisher | Pipe-Wrench |
 | 227,768 | May 18, 1880 | G.W. Griffiths | Pipe-Wrench |
 | 242,130 | May 31, 1881 | S.E. Hurlbut | Wrench |
