Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871078 | Piston ring and method for the production thereof | Manfred Fischer | 2011-01-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7871078 | Piston ring and method for the production thereof | Manfred Fischer | 2011-01-18 |