Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677069 | Plastic material for packaging | Hanneli Seppanen, Torvald Vestberg, Markku Sainio | 1997-10-14 |
| 5663232 | Plastic material for packaging | Hanneli Seppanen, Marja Ora, Markku Sainio, Torvald Vestberg | 1997-09-02 |