Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886770 | Catalysts for the preparation of elastomeric olefinic copolymers | Illaro Cuffiani, Gian F. Margelli, Umberto Zucchini | 1989-12-12 |
| 4826357 | Device for the internal occlusion of tubular foundation piles | Oneglio Sala | 1989-05-02 |