Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692040 | Method of and apparatus for exchanging compatible universal identification telephone protocols over a public switched telephone network | — | 1997-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692040 | Method of and apparatus for exchanging compatible universal identification telephone protocols over a public switched telephone network | — | 1997-11-25 |