Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882976 | Brake booster | Andreas Abbing, George Kehl, Robert Mergenthaler, Dietmar Rischen, Ernst-Dieter Schafer +2 more | 1989-11-28 |
| 4878519 | Piston accumulator | Josef Berding, Thomas Lees, Carsten Pabst | 1989-11-07 |
| 4860636 | Brake booster for vehicles | Robert Mergenthaler, Edgar Schmitt, Heinz Siegel | 1989-08-29 |
| 4818039 | Automatic drive slip regulating unit | Heinz Siegel | 1989-04-04 |