Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365577 | Telecommunication display system | Richard A. Davis, Ronald K. Witmore, Anthony J. Brittain, Peter Mathys | 1994-11-15 |
| 4488004 | Providing feature transparency between a plurality of PBXs | Frank J. Bogart, Mary R. Dedisse, Radhakrishna S. Divakaruni, Keith S. Knight, Karen L. Page +1 more | 1984-12-11 |