Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829211 | Method of manufacturing a color display tube having a magnetic quadrupole post-focusing mask and a color display tube made by the method | Johannes T. C. Van Roosmalen, Robert H. J. Fastenau, Matthijs J. Baan Hofman, Johannes T. Klomp | 1989-05-09 |
| 4614501 | Method of manufacturing a color cathode-ray tube comprising a magnetic quadrupole post-focusing mask and device for carrying out the method | Robert H. J. Fastenau, Paulus J. J. M. van der Heijden | 1986-09-30 |
| 4374452 | Apparatus for manufacturing a color display tube | — | 1983-02-22 |
| 4222159 | Method of manufacturing a color display tube shadow mask | — | 1980-09-16 |
| 4197482 | Color selection means for color display tube and method of making same | Antonius J. Der Kinderen | 1980-04-08 |