Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817204 | Optical communication apparatus and method for telephone supervisory and audio signals | Larry W. Anderson, Bruce Randall | 1989-03-28 |
| 4686630 | Load management control system and method | Charles N. Marsland | 1987-08-11 |