Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612586 | Spark plug for internal combustion engines | Walter Benedikt, Dittmar Klett, Hermann Kersting, Roland Mueller, Jochen Fischer | 1997-03-18 |
| 5609140 | Fuel supply system for an internal combustion engine | Claus Kramer, Armin Verhagen, Gerhard Keuper | 1997-03-11 |