Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980887 | Digital communication apparatus and method | Lee V. Dively | 1990-12-25 |
| 4908819 | Integrated data voice multiplexer supporting handshake and loop-back protocols | Ioan V. Teodorescu | 1990-03-13 |
| 4759009 | Remote digital carrier alarm and terminal by-pass system | Cecil L. Suter | 1988-07-19 |