Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469655 | Surveillance system for terrestrial navigational and airport landing systems | Erich Franke | 2002-10-22 |
| 6414632 | Monitoring of the phase angle of course and clearance signals in an instrument landing system | — | 2002-07-02 |