Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411488 | Afocal zoom refractor telescopes | — | 1983-10-25 |
| 4398786 | Collimation lens system | — | 1983-08-16 |
| 4397520 | Afocal refractor telescopes | — | 1983-08-09 |
| 4383173 | Infrared radiation detecting systems | Gordon H. McLean, Peter J. Berry | 1983-05-10 |