Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5729460 | Method for payment of the recrediting of an electronic postage meter and arrangement for the operation of a data central | George G. Gelfer, Jakob Zimmermann, Enno Bischoff | 1998-03-17 |