| All Patents in class 81/396 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 166,428 | Aug. 03, 1875 | H.C. Stouffer | Improvement in Pipe-Wrenches | screw adjust wrenches |
| 222,484 | Dec. 09, 1879 | D.P. Foster | Improvement in Pipe-Wrenches | pipe wrenches |
| 538,166 | Apr. 23, 1895 | J.A. Hunt | Wrench | screw adjust wrenches |
| 1,246,000 | Nov. 06, 1917 | R.B. Ferguson | Wrench | screw adjust wrenches |
| 1,301,674 | Apr. 22, 1919 | R.B. Ferguson | Wrench | screw adjust wrenches |
| 1,429,517 | Sep. 19, 1922 | J. McGhee | Combined Pipe and Nut Wrench | pipe and nut combination wrenches |
| 2,420,020 | May 06, 1947 | F.A. Snell | Lever-Actuated Pivoted-Jaw Wrench | locking pliers |
| 2,444,135 | Jun. 29, 1948 | W.C. Kress | Worm Joint Pliers or Wrench | pliers |
| 4,091,696 | May 30, 1978 | U. Wahlberg | Pliers | pliers |
