Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899035 | Scanning device for a chip card | Gerhard Habelt, Hans Weihs | 1990-02-06 |
| 4639793 | System for recording or detecting two marking signals on a record carrier | — | 1987-01-27 |