| All Patents in class 73/862.21 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 414,615 | Nov. 05, 1889 | J. Walker | Tension Registering Wrench | torque wrenches |
| 2,190,967 | Feb. 20, 1940 | H.W. Zimmerman | Torque measuring wrench | torque wrenches |
| 2,191,725 | Feb. 27, 1940 | B. Pepperdine | Torque Measuring Wrench | torque wrenches |
| 2,211,401 | Aug. 13, 1940 | H.W. Zimmerman | Torque measuring wrench | torque wrenches |
| 2,312,104 | Feb. 23, 1943 | K.R. Larson | Torque Wrench | torque wrenches |
| 2,343,380 | Mar. 07, 1944 | G.M. Walraven, K.R. Larson | Torque Ratchet Wrench | torque wrenches |
| 2,374,217 | Apr. 24, 1945 | G.M. Walraven, K.R. Larson | Ratchet Measuring Wrench | torque wrenches |
| 2,715,333 | Aug. 16, 1955 | K.R. Larson | Torque Measuring Wrenches | torque wrenches |
| 3,115,029 | Dec. 24, 1963 | B.R. Better | Torque Tester | testing machines |
| 3,283,620 | Nov. 08, 1966 | J.R. Bailey | Torque Wrench | torque wrenches |
| 3,599,483 | Aug. 17, 1971 | K.R. Larson | Torque Wrench Translating Devices | torque wrenches |
| 3,633,418 | Jan. 11, 1972 | K.R. Larson | Adjustable Torque Wrench Translating Devices | torque wrenches |
| 3,879,996 | Apr. 29, 1975 | T.O. Green | Meter Translation Devices for Torque Measuring Wrenches and the Like | torque wrenches |
| 4,281,538 | Aug. 04, 1981 | E.C. Dudek | Transducer for indicating torque | |
| 5,589,644 | Dec. 31, 1996 | D.J. Iwinski, R.J. Niesen, G.A. Putney, M.M. Crass, T.P. Becker | Torque-Angle Wrench | torque wrenches |
