Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5813315 | Hydraulic piston machine having sheathing plastic material for reducing friction | Egon Kristensen, Lars Martensen | 1998-09-29 |
| 5598761 | Hydraulic axial piston machine with control face located in rear flange and friction-reducing plastic insert in rear flange | Egon Kristensen | 1997-02-04 |