Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4575031 | Device for detecting the unbalance between the two fractions of the return traction current in the rails of a railroad track | — | 1986-03-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4575031 | Device for detecting the unbalance between the two fractions of the return traction current in the rails of a railroad track | — | 1986-03-11 |