Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849777 | Lamp driver scheme | — | 1989-07-18 |
| 4841316 | Photohead system for positioning an aperture wheel and method of making an aperture disc | Robert J. Pavone, Bruce L. Davidson | 1989-06-20 |