Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4503954 | Drum brake with controlled torque and torque control valve for such a brake | Christian Riquart, Pierre Pressaco | 1985-03-12 |
| 4231012 | Drum brake wear indicator | Jean-Jacques Carre | 1980-10-28 |