Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4433653 | Light metal cylinder head for a valve-controlled internal combustion engine | Emil Lichtner, Gerhard Giebel | 1984-02-28 |
| 4337735 | Light metal cylinder head for a valve-controlled internal combustion engine | Emil Lichtner, Gerhard Giebel | 1982-07-06 |