Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684497 | Twice folded compound magnified virtual image electronic display | Alfred P. Hildebrand | 1997-11-04 |
| 5644323 | Miniature synthesized virtual image electronic display | Alfred P. Hildebrand | 1997-07-01 |
| 5625372 | Compact compound magnified virtual image electronic display | Alfred P. Hildebrand | 1997-04-29 |