Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5359642 | Method and apparatus for prepayment of telecommunication connections by registered groups of subscribers in a telecommunication switching network | — | 1994-10-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5359642 | Method and apparatus for prepayment of telecommunication connections by registered groups of subscribers in a telecommunication switching network | — | 1994-10-25 |