Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735992 | Device for mutually locking two elements, in particular a covering element to an element forming a support frame | Patrice Vauthier | 2004-05-18 |
| 6722813 | Road network device with articulated cover | Francis Berthon | 2004-04-20 |
| 6676332 | Highway device and covering element for such a device | Jean-Paul Pietrzak | 2004-01-13 |