Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4400589 | Subscriber station network | Michael L. Tentler | 1983-08-23 |
| 4303805 | Subscriber station network | Michael L. Tentler | 1981-12-01 |
| 4232200 | Dialing system | Alfred M. Hestad, Harold O. Hansen | 1980-11-04 |