| All Patents in class 81/91.2 |
Patents 1 -
10
of 32
      |
| Picture | Number | Date | Patentee | Title |
 | 126,506 | May 07, 1872 | W.C. Westerfield | Improvement in Pipe-Wrenches |
 | 185,078 | Dec. 05, 1876 | D.B. Cook | Pipe-Wrench |
 | 200,175 | Feb. 12, 1878 | C.C. Coleman | Pipe-Wrench |
 | 320,872 | Jun. 23, 1885 | J.F. Guthrie, Jr. | Pipe Wrench |
 | 346,299 | Jul. 27, 1886 | F.C. Sawhill, T.D. McCarty | Improvements in Pipe-Tongs |
 | 359,197 | Mar. 08, 1887 | I. Anderson | Pipe Wrench |
 | 416,792 | Dec. 10, 1889 | J.A. Maloney | Pipe Wrench |
 | 441,020 | Nov. 18, 1890 | A.A. Peterkin | Pipe Wrench |
 | 444,255 | Jan. 06, 1891 | G.F. Shaw | Pipe Wrench |
 | 450,972 | Apr. 21, 1891 | T. Newman | Pipe Wrench |
