| All Patents in class 81/481 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 2,682,796 | Jul. 06, 1954 | K.R. Larson | Predetermined torque release and torque indicating wrench |
| | 2,731,865 | Jan. 24, 1956 | R.G. Woods | Predetermined Torque Release Socket Wrench |
 | 2,734,411 | Feb. 14, 1956 | R.G. Woods | Predetermined Torque Release Socket Wrench |
| | 2,792,733 | May 21, 1957 | E.H. Adams, G.M. Walraven | Pre-Set Torque Indicating Wrench |
 | 2,897,704 | Aug. 04, 1959 | R.G. Woods | Predetermined Torque Release, Ratchet Type Wrench |
 | 2,918,834 | Dec. 29, 1959 | J.W. Cranford | Predetermined Torque Release Wrench |
 | 2,962,918 | Dec. 06, 1960 | W.E. Van Hoose | Predetermined Torque Release Wrench |
