| All Patents in class 81/90.2 |
Patents 16 -
23
of 23
      |
| Number | Date | Patentee | Title | Type |
| 1,183,371 | May 16, 1916 | M.I. Ginsburg | Automatic wrench | nut wrenches |
| 1,361,923 | Dec. 14, 1920 | W.M. Stovall | Wrench | self-adjust wrenches |
| 1,429,053 | Sep. 12, 1922 | W.H. Ward | Wrench | alligator wrenches |
| 1,611,808 | Dec. 21, 1926 | W.L. Bessolo | Tongs | chain and strap wrenches |
| 2,441,144 | May 11, 1948 | R.L. Gregory | Wrench Provided With Cam-Actuated Self-Tightening Jaws | self-adjust wrenches |
| 4,724,730 | Feb. 16, 1988 | J.A. Van Lenten, W.G. Mader | Wrench socket with cam locking feature | wrench sockets |
| 4,856,386 | Aug. 15, 1989 | H.L. Rodriguez | Socket assembly for multiple size wrenching surfaces | wrench sockets |
| 6,889,579 | May 10, 2005 | D.P. Brown | Adjustable Gripping Tool | self-adjust wrenches |
