Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5254845 | Automatic focusing system using focal length-changing element | David C. Burgess, Jacques Ginestet, Ilya Ravkin | 1993-10-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5254845 | Automatic focusing system using focal length-changing element | David C. Burgess, Jacques Ginestet, Ilya Ravkin | 1993-10-19 |