Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889991 | Gamma radiation detector with enhanced signal treatment | Raymond C. Ramsey | 1989-12-26 |
| 4801803 | Detector and localizer for low energy radiation emissions | Dennis J. Denen, Raymond C. Ramsey | 1989-01-31 |
| 4799763 | Paraxial stereoscopic projection system | John Robert Davis | 1989-01-24 |