| All Patents in class 192/56.5 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 748,018 | Dec. 29, 1903 | C.J. Rowe | Work and Tool Holder | tool holders |
| 1,306,513 | Jun. 10, 1919 | F.E. Aurand | Clutch | industrial machine clutches |
| 1,671,521 | May 29, 1928 | F. Fisher | Shaft coupling | industrial machine shaft couplings |
| 2,255,211 | Sep. 09, 1941 | S.C. Gebert | Load Limiting Clutch | industrial machine clutches |
| 2,406,142 | Aug. 20, 1946 | S.C. Gebert | Overload Release Coupling | industrial machine clutches |
| 2,771,804 | Nov. 27, 1956 | J.W. Lehde, Jr., B.R. Better | Predetermined Torque Release Wrench | torque wrenches |
| 2,775,326 | Dec. 25, 1956 | J.W. Lehde, Jr., B.R. Better | Torque Drivers | drilling and boring tool holders |
| 2,791,304 | May 07, 1957 | J.W. Lehde, Jr., B.R. Better | Safe Torque Driver | drilling and boring tool holders |
| 2,819,635 | Jan. 14, 1958 | J.W. Lehde, Jr., B.R. Better | Power Operated, Predetermined Torque Release Tool | drilling and boring tool holders |
| 2,886,075 | May 12, 1959 | D.O. Skoog | Torque release clutch drive mechanism for power operated screw drivers and the like | handheld power tools |
| 2,889,022 | Jun. 02, 1959 | J.W. Lehde, Jr., B.R. Better | Double Roller Torque Driver | drilling and boring tool holders |
| 2,978,082 | Apr. 04, 1961 | B.R. Better | Overload Release Clutch | tool clutches |
