Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5675607 | Method and apparatus for facilitating the making of card calls | Thomas Alesio, Monowar Hossain, Dooyong Lee | 1997-10-07 |
| 5633922 | Process and apparatus for restarting call routing in a telephone network | Katherine G. August | 1997-05-27 |