Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850652 | Feed circuit for railway braking systems | Alain Van Hemelryck | 1989-07-25 |
| 4840221 | Device for ventilating rheostats and/or fluid radiators in a locomotive | Maurice Thoraval, Gerard Genuit | 1989-06-20 |