Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5913764 | Method of manufacturing flat-bottom bags with a glued-on bottom lining | Wilfried Kolbe, Hans-Rudolph Van Den Maagdenberg, Diethard Obermeier, Klaus Schirrich | 1999-06-22 |