Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874982 | Display device with adjustable deflection unit | Dik R. Overdijk, Antonius J. J. Bolder, Leopold C. M. Beirens | 1989-10-17 |
| 4868453 | Color display tube having a multi-part suspension means for a color selection electrode and method of manufacturing same | Henricus J. M. Van Der Avoort, Hans G. Kieschke | 1989-09-19 |
| 4832645 | Method of manufacturing a cathode ray tube | Johannes W. H. Verhagen, Rienk Weening | 1989-05-23 |