Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842006 | Dashpot for fuel tanks | Dieter Scheurenbrand, Helmut Wawra | 1989-06-27 |
| 4799509 | Venting arrangement for fuel tanks of motor vehicles | Helmut Wawra, Dieter Scheurenbrand | 1989-01-24 |