Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4333175 | Telephone system using pulse code modulated subscriber lines | R. Gordon Cook | 1982-06-01 |
| 4314368 | Receiver for pulse code multiplexed signals | Calvin DeCoursey | 1982-02-02 |