Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869178 | Device designed to ensure running continuity between two successive railroad or road vehicles | Roland Wanneroy | 1989-09-26 |
| 4858535 | Intercirculation tunnel between vehicles | Jacques J. Champleboux | 1989-08-22 |
| 4819565 | Tubular joint formed by two rolling membranes under low pressurization for intercommunication ring | — | 1989-04-11 |