Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6738622 | Roaming method and devices appropriate therefor | Anton Niklaus Stadelmann, Walter Heutschi | 2004-05-18 |
| 6684073 | Signalling method and conversion device for telecommunications networks | Marcel Joss | 2004-01-27 |