Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633913 | Method for establishing connection between communication devices | — | 1997-05-27 |
| 5619552 | Arrangement and method for location registration | Arto Karppanen, Markku Tuohino | 1997-04-08 |
| 5594948 | Method for realising a group call in a digital radio network | Pertti Brockman | 1997-01-14 |