Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5600654 | Multiple call offering method for use with an analog station and an | Linda M. Smedinghoff | 1997-02-04 |
| 5309028 | Call coverage arrangement in an | Jeffery M. Dement | 1994-05-03 |