| All Patents in class 81/417 |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 1,070,559 | Aug. 19, 1913 | S. Toth | Wrench | pipe wrenches |
| 1,331,443 | Feb. 17, 1920 | D.F. Lynch | Pliers | pliers |
| 1,931,576 | Oct. 24, 1933 | D. De Neui | Hog Ringing Tool | pliers |
| 2,818,758 | Jan. 07, 1958 | J.F. Cooper, Jr., W.H. Connell, J.E. Swanstrom | Spring Loaded Plier Type Tool | pliers |
| 3,521,510 | Jul. 21, 1970 | T.F. Angquist | Spring Opened Pliers | pliers |
| 4,875,394 | Oct. 24, 1989 | C.B. Crudgington, Jr. | Champagne Bottle Opener | champagne and soda tools |
| 5,522,289 | Jun. 04, 1996 | D.M. Eggert | Opening spring for pivoting hand tool | pliers |
| 5,904,078 | May 18, 1999 | C.D. Thompson, E.T. Gustafson | Pliers with Flush Joint Bias Spring | pliers |
