Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815072 | Switching arrangements for digital telecommunications exchange systems | Kevin Griffin | 1989-03-21 |
| 4811358 | Subscriber line interface modem | Colin P. Smedley | 1989-03-07 |