Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637846 | Method and apparatus for electronic payment by a client in a self-service store | Jan Willem Boers | 1997-06-10 |
| 5397882 | Method for spot checking a client in a self-service store | — | 1995-03-14 |