Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5600640 | Call processing system for controlling connections in a communications system | Hamish M. Blair, Graham R. Dent, John W. Cutler, Cornelis Arie Hoogendoorn, Heinrich Schiessl | 1997-02-04 |