Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869557 | Driver brake valve | Eduard Gerum, Gerd Kessel, Manfred Weissflog | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869557 | Driver brake valve | Eduard Gerum, Gerd Kessel, Manfred Weissflog | 1989-09-26 |