Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819780 | Device for verifying coins | Stefan Lüder | 1989-04-11 |
| 4742903 | Device for coin checking | — | 1988-05-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819780 | Device for verifying coins | Stefan Lüder | 1989-04-11 |
| 4742903 | Device for coin checking | — | 1988-05-10 |