| All Patents in class 81/411 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 284,933 | Sep. 11, 1883 | G.W. Wilbur | Pipe Tongs | pipe tongs |
| 388,607 | Aug. 28, 1888 | D.B. Whitehill | Improvement in Pipe Tongs | pipe wrenches |
| 484,307 | Oct. 11, 1892 | W.S. Duvall, C.C. Fields | Wrench | quick adjust wrenches |
| 601,506 | Mar. 29, 1898 | C.D. Eames | Tongs | pipe wrenches |
| 793,257 | Jun. 27, 1905 | J.T. Williams | Wrench | pipe wrenches |
| 1,344,629 | Jun. 29, 1920 | L.D. Fowler | Parrot-Head Pliers | pliers |
| 1,772,224 | Aug. 05, 1930 | W.A. Peterson | Pliers | locking pliers |
| 2,445,480 | Jul. 20, 1948 | J.P. Ganitt | Pivoted Jaw Plier with Slotted Fulcrum Guide | pliers |
| 2,727,417 | Dec. 20, 1955 | J. Eifel | Pliers with Adjustable Toothed Pivot for Engaging Slots | pliers |
