Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868656 | Method and apparatus for reducing visibility of scanning lines in television picture | Erich Geiger, Jean-Claude Guillon | 1989-09-19 |
| 4868660 | Circuit arrangement for unobjectionable switching between TV-channels as in a TV receiver | — | 1989-09-19 |