Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622575 | Pneumatic vehicle tire with a symmetrical carcass, symmetrical belt plies, and an asymmetrical tread | Wolfgang Spitz, Dieter Rohde, Siegfried Praetorius, Klaus Hartmann | 1997-04-22 |