Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699415 | Method for matching the database between an electronic postage meter machine and a data center | — | 1997-12-16 |
| 5671146 | Method for improving the security of postage meter machines | Harald Windel, Frank Reisinger, Claus Freytag, Ralf Kubatzki, Enno Bischoff +3 more | 1997-09-23 |