| All Patents in class 81/110 |
Patents 1 -
10
of 23
      |
| Picture | Number | Date | Patentee | Title |
 | 132,819 | Nov. 05, 1872 | D.E. Eaton | Improvement in Pipe-Wrenches |
 | 178,902 | Jun. 20, 1876 | T. Booth | Pipe-Wrench |
 | 253,089 | Jan. 31, 1882 | W. O'Connell, Jr. | Wrench |
 | 275,106 | Apr. 03, 1883 | H.B. Williams | Pipe Wrench |
 | 291,129 | Jan. 01, 1884 | W.C. Baskin | Wrench |
 | 382,799 | May 15, 1888 | R. Copland | Pipe Wrench |
 | 382,975 | May 15, 1888 | B.R. Hagar | Wrench |
 | 440,294 | Nov. 11, 1890 | M.J. Wilson | Improvements in Pipe-Wrenches |
 | 446,547 | Feb. 17, 1891 | H.A. Margason, W.E. Goodnow | Pipe Wrench |
 | 446,592 | Feb. 17, 1891 | D. McManus, T.J. Duncan | Pipe Wrench |
