Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5970417 | Method for maintaining a group call | Hannu Toyryla | 1999-10-19 |
| 5678195 | Method of informing a subscriber in a radio telephone system of facilities activated for the subscriber station | Hannu Toyryla | 1997-10-14 |