Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882481 | Automatic brightness control for image intensifiers | David W. Gerdt | 1989-11-21 |
| 4822991 | Optically switched microwave pulse generator | Robert F. Riggs, James D. Halsey | 1989-04-18 |