Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5000769 | System for ventilating a rail traction motor and for dynamically purifying the ventilation air | Jean-Luc Raguideau, Jean-Pierre Gaignier, Lucien Piguel | 1991-03-19 |