Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4198164 | Proximity sensor and method and apparatus for continuously measuring rail gauge | — | 1980-04-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4198164 | Proximity sensor and method and apparatus for continuously measuring rail gauge | — | 1980-04-15 |