Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811288 | Data security device for protecting stored data | Johannes A. J. de Bruin, Jan Goossens | 1989-03-07 |
| 4807284 | Security device for sensitive data | — | 1989-02-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811288 | Data security device for protecting stored data | Johannes A. J. de Bruin, Jan Goossens | 1989-03-07 |
| 4807284 | Security device for sensitive data | — | 1989-02-21 |