Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334507 | Piston for an internal combustion engine and method for producing same | Hans-Jurgen Kohnert, Walter Graf, Ladislaus Jakl-Banka | 1982-06-15 |
| 4205649 | Light-metal piston | Albrecht Ostermann, Klaus Welker | 1980-06-03 |