Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825052 | Method and apparatus for certifying services obtained using a portable carrier such as a memory card | Michel Ugon | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825052 | Method and apparatus for certifying services obtained using a portable carrier such as a memory card | Michel Ugon | 1989-04-25 |