Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265419 | Apparatus for car counting and discrimination | — | 1981-05-05 |
| 4257669 | Optical-electronic system for the identification of a retro-reflective label | Emil Spirea, Radu Cristea | 1981-03-24 |