Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673036 | Selective call receiver memory validation and acknowledgement and method therefor | — | 1997-09-30 |
| 5631635 | Message/response tracking system and method for a two-way selective call receiving device | Karen S. Robertson | 1997-05-20 |