All Patents in class 137/625.65 |
Patents 1 -
5
of 5
![](/buttons/btnLeftCir.jpg) ![First set of records](/buttons/btnFirst.jpg) ![](/buttons/btngPrev.jpg) ![](/buttons/btngNext.jpg) ![Last set of records](/buttons/btnLast.jpg) ![](/buttons/btnRightCir.jpg) |
Number | Date | Patentee | Title | Type |
2,494,491 | Jan. 10, 1950 | O.E. Rosaen | Ironclad Electromagnet with Pivoted Armature | electromagnets |
2,600,746 | Jun. 17, 1952 | W. Ernst | Fluid Pressure Control Valve | hydraulic apparatus |
2,916,018 | Dec. 08, 1959 | A.C. Nolte, C.F. Pabst | Control Mechanism | machine tool controls |
3,414,019 | Dec. 03, 1968 | N.V. Gusching | Electro-fluid control system | |
4,790,233 | Dec. 13, 1988 | L.W. Durham, B.S. Backe | Method and Apparatus for Controlling Hydraulic Systems | machine tool controls |