Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334507 | Piston for an internal combustion engine and method for producing same | Hans-Jurgen Kohnert, Walter Graf, Manfred Rohrle | 1982-06-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334507 | Piston for an internal combustion engine and method for producing same | Hans-Jurgen Kohnert, Walter Graf, Manfred Rohrle | 1982-06-15 |