Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816657 | Method and device for characterizing and identifying falsification-proof data supports | Hans-Georg Winderlich | 1989-03-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816657 | Method and device for characterizing and identifying falsification-proof data supports | Hans-Georg Winderlich | 1989-03-28 |