Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5406769 | Joining of a concrete element to a support | Henri Vidal | 1995-04-18 |
| 5144779 | Joining of a concrete element to a support | Henri Vidal | 1992-09-08 |
| 5004376 | Facing system | Henri Vidal, Pierre Segrestin | 1991-04-02 |
| 4982550 | Joining of a concrete element to a support | Henri Vidal | 1991-01-08 |
| 4826639 | Moulding process and apparatus for making arch-shaped concrete structures | Henri Vidal | 1989-05-02 |