Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055833 | Method for the control of an electro-optical matrix screen and control circuit | Robert Hehlen, by Philippe Hehlen, legal representative, by Bernard Hehlen, legal representative, Bruno Mourey | 1991-10-08 |