Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6739234 | Pneumatic brake booster with variable force transmission ratio | Albert Zinndorf | 2004-05-25 |
| 6672198 | Vacuum brake booster with mechanical emergency braking aid | Ludwig Friedsam, Heinrich Plewnia, Peter Schluter | 2004-01-06 |