Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838765 | Axial piston pump | Peter Wusthof, Manfred Lotter, Rainer Stolzer | 1989-06-13 |
| 4813858 | Gerotor pump with pressure valve and suction opening for each pressure chamber | — | 1989-03-21 |