Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415142 | Prepaid smart card in a GSM based wireless telephone network and method for operating prepaid cards | — | 2002-07-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415142 | Prepaid smart card in a GSM based wireless telephone network and method for operating prepaid cards | — | 2002-07-02 |