| All Patents in class 81/477 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 2,074,079 | Mar. 16, 1937 | G.H. Pfefferie, C.C. Bahr | Torque Measuring Wrench | torque wrenches |
| 2,558,158 | Jun. 26, 1951 | G.L. Rock | Safety Tool Handle | tool handles |
| 2,792,734 | May 21, 1957 | G.M. Walraven, K.R. Larson | Pre-set indicating wrench | torque wrenches |
| 2,936,661 | May 17, 1960 | J.L. Hostetter | Torque Limiting Wrench | |
| 3,279,286 | Oct. 18, 1966 | K.R. Larson | Pre-Set Torque Measuring Device | torque wrenches |
| 3,283,620 | Nov. 08, 1966 | J.R. Bailey | Torque Wrench | torque wrenches |
| 3,763,724 | Oct. 09, 1973 | T.O. Green | Automatic Torque Release Wrench of the Preset Type | torque wrenches |
| 4,290,329 | Sep. 22, 1981 | T.O. Green | Torque Release Wrench of the Preset Type | torque wrenches |
