Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6230631 | Rolling monoaxle provided with movable independent wheels for articulated railway carriages intended to the transportation of cars | Julio Frutos Aguado | 2001-05-15 |
| 5787814 | Railway axle assembly furnished with automatic change of track gauge and adaptable to conventional freight bogies | José Luis López Gómez, Julio Frutos Aguado | 1998-08-04 |