Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6128314 | Method and apparatus for capturing a communication attribute converting apparatus, and a system containing the apparatus | — | 2000-10-03 |
| 5787257 | Control method for station-to-station slave transmission | — | 1998-07-28 |
| 5754638 | Multi-call simultaneous transfer system and switchboard | — | 1998-05-19 |