Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4907645 | Device for ventilating rheostats and/or fluid radiators in a locomotive | Jean Dumas, Maurice Thoraval | 1990-03-13 |
| 4840221 | Device for ventilating rheostats and/or fluid radiators in a locomotive | Jean Dumas, Maurice Thoraval | 1989-06-20 |