Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4342821 | Directional filter for a display screen, the method for manufacturing same and a display system, a cathode-ray tube in particular, provided with such a filter | Pierre Merloz, Jean Sagnard | 1982-08-03 |