| All Patents in class 81/185.2 |
Patents 1 -
10
of 58
      |
| Picture | Number | Date | Patentee | Title |
 | 37,459 | Jan. 20, 1863 | N. Porter | Improvement in Wrenches |
 | 56,166 | Jul. 10, 1866 | B. Boardman | Improved Tool |
 | 90,307 | May 18, 1869 | B. Riley | Adjustable Gas-Pipe Tongs |
 | 96,776 | Nov. 16, 1869 | J.W. Close | Improvement in Combined Screw and Pipe-Wrench and Pipe-Cutter |
 | 97,430 | Nov. 30, 1869 | R. Nicholson | Wrench |
 | 198,709 | Dec. 25, 1877 | W.E. Thornton | Pipe-Wrench With Cutter |
 | 212,369 | Feb. 18, 1879 | J. Gilberds, B. Franklin | Pipe-Wrench With Cutter |
 | 212,795 | Mar. 04, 1879 | D. Fisher | Pipe and Nut Wrench |
 | 216,014 | Jun. 03, 1879 | H. Banister | Pipe-Tongs |
 | 234,304 | Nov. 09, 1880 | C.H. Lovrien | Pipe Tongs |
