Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4563850 | Devices for assembling together the slabs of concrete constituting highways | — | 1986-01-14 |
| 4509305 | Device for connecting isostatic elements in line | — | 1985-04-09 |
| 4330243 | Apparatus for moulding concrete elements | Pierre Legrand | 1982-05-18 |