Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189840 | Roller device for displacement of railroad switching rails | Gilson Etore Mantovan, Isnad Torres Pires, Reynaldo Lopes Ferreira | 2001-02-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6189840 | Roller device for displacement of railroad switching rails | Gilson Etore Mantovan, Isnad Torres Pires, Reynaldo Lopes Ferreira | 2001-02-20 |