| Patents for Bengt S. Backe |
Patents 1 -
5
of 5
      |
| Picture | Number | Date | Patentee | Title |
| | 4,658,859 | Apr. 21, 1987 | L.W. Durham, B.S. Backe | Valve Spool with Cross Drill Ports |
 | 4,706,456 | Nov. 17, 1987 | L.W. Durham, B.S. Backe | Method and Apparatus for Controlling Hydraulic Systems |
| | 4,752,867 | Jun. 21, 1988 | L.W. Durham, B.S. Backe | Control Circuitry for Electric Drives |
| | 4,789,001 | Dec. 06, 1988 | L.W. Durham, B.S. Backe | Operating System for a Valve |
| | 4,790,233 | Dec. 13, 1988 | L.W. Durham, B.S. Backe | Method and Apparatus for Controlling Hydraulic Systems |
