Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870679 | Repertory telephone dialer with remote billing capability | Janice G. Hanna, James M. Rulon, Wayne Allen Weise | 1989-09-26 |
| 4488006 | Apparatus for controlling the application of telephone line power in a telephone set | Terrence L. Essig, Donald R. Means | 1984-12-11 |
| 4416007 | Digital conferencing method and arrangement | Paul Thompson | 1983-11-15 |
| 4413159 | Dial pulsing circuit | Donald R. Means, Edward W. Underhill | 1983-11-01 |