Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806823 | Method of manufacturing an electron beam tube and electron beam tube thus manufactured | Wilhelmus M. P. Van Kemenade | 1989-02-21 |
| 4801842 | Method of reducing doming in a color display tube and a color display tube made in accordance with the method | — | 1989-01-31 |