Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5992329 | Machine for welding at least one run of rail | Gerard Schelling, Christian Wenger, Jean-Jacques Aubert | 1999-11-30 |
| 5615616 | Process for screwing and unscrewing the tie screws of a railroad and machine for implementing the process | Gerard Schelling, Christian Wenger, Gerard Sauterel | 1997-04-01 |
| 5237143 | Process and installation of on-track neutralization of the rails of a railway with high-frequency heating | — | 1993-08-17 |
| 5181472 | Device for the substitution of the rails of railway tracks | — | 1993-01-26 |