Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570276 | Ventilation device and rail traction electric motor equipped with such a device | Ludovic Morel, Bruno Raguin | 2003-05-27 |
| 5000769 | System for ventilating a rail traction motor and for dynamically purifying the ventilation air | Jean-Louis Marichez, Jean-Pierre Gaignier, Lucien Piguel | 1991-03-19 |