Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4570182 | Halo generator for CRT display symbols | Michael J. Johnson | 1986-02-11 |
| 4258298 | Dynamic focus control and power supply for cathode ray tube displays | Thomas W. Spilsbury | 1981-03-24 |