Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872863 | Method of fixing a cathode-ray tube cone and display window prior to sealing and a cathode-ray tube manfactured by such a method | — | 1989-10-10 |
| 4868453 | Color display tube having a multi-part suspension means for a color selection electrode and method of manufacturing same | Piet C. J. Van Rens, Hans G. Kieschke | 1989-09-19 |