Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356028 | Folding box with inner bag and process for manufacturing same | Erich Heuberger | 1994-10-18 |
| 5314088 | Cardboard packaging for liquids | Erich Heuberger, Joachim W. Dziallas, George Plester, Georg Troska | 1994-05-24 |