Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216703 | Piggy-back number and routing isolation for cellular telephone switches | — | 1993-06-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216703 | Piggy-back number and routing isolation for cellular telephone switches | — | 1993-06-01 |