Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812277 | Process for the preparation of polyvinyl alcohol articles of high strength and modulus | Floribertus C. H. Mokveld | 1989-03-14 |
| 4810450 | Process for the preparation of polyvinyl alcohol articles of high strength and modulus | Hendrikus J. J. Rutten, Pieter J. Lemstra | 1989-03-07 |