Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347688 | Railroad rail grinding truck | Fredy Scheuchzer | 1982-09-07 |
| 4319416 | Method for draining a railway track and a railway train for use in said method | Fredy Scheuchzer | 1982-03-16 |