| All Patents in class 81/422 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 119,838 | Oct. 10, 1871 | T. Snyder, D. Frank | Improvements in Pipe Tongs or Wrench | pipe wrenches |
| 166,665 | Aug. 10, 1875 | L.O. Veber | Wrench | pipe and nut combination wrenches |
| 174,778 | Mar. 14, 1876 | G.H. Buzzell | Pipe-Tongs | pipe tongs |
| 351,656 | Oct. 26, 1886 | F.C. Sawhill | Wrench | self-adjust wrenches |
| 378,585 | Feb. 28, 1888 | W.L. Gibson | Self-Adjusting Wrench, Pliers or Pinchers | pliers type wrenches |
| 388,607 | Aug. 28, 1888 | D.B. Whitehill | Improvement in Pipe Tongs | pipe wrenches |
| 437,589 | Sep. 30, 1890 | W.L. Gibson | Wrench | pliers type wrenches |
| 527,132 | Oct. 09, 1894 | G.A. Teel | Fuse Capper | pliers |
| 580,429 | Apr. 13, 1897 | F.E. Snyder | Wrench | pipe tongs |
| 794,249 | Jul. 11, 1905 | K. Peterson | Nut and Pipe Wrench | pliers type wrenches |
| 2,670,643 | Mar. 02, 1954 | W.H. Clark | Spark Gap Adjusting Pliers | spark plug adjusting |
