| All Patents in class 81/133 |
Patents 16 -
22
of 22
      |
| Number | Date | Patentee | Title | Type |
| 1,181,654 | May 02, 1916 | J. Eifel | Wrench | pliers type wrenches |
| 1,199,606 | Sep. 26, 1916 | F. Prokop | Wrench | nut wrenches |
| 1,658,890 | Feb. 14, 1928 | T.M. Foss | Wrench | pipe wrenches |
| 1,866,426 | Jul. 05, 1932 | J.C. Siegrist | Combination Wrench | combination tools |
| 1,870,326 | Aug. 09, 1932 | M.W. Emmett | Wrench | quick adjust wrenches |
| 1,877,642 | Sep. 13, 1932 | H.F. Brady | Wrench | auxiliary levers on wrenches |
| 4,802,389 | Feb. 07, 1989 | W.E. Shultz | Adjustable Workpiece Gripping and Rotating Device | |
