Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832239 | Clothes-hanger for skirts or trousers | — | 1989-05-23 |
| 4800073 | Process for the production of hydrogen peroxide | Erik A. Bengtsson | 1989-01-24 |
| 4800074 | Process for the production of hydrogen peroxide | Erik A. Bengtsson | 1989-01-24 |