Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364864 | 1:2 Cobalt and chromium complex unsymmetrical azo dyes | Fabio Beffa, Gerhard Back | 1982-12-21 |
| 4318849 | Novel metallized dyes, their manufacture and use | Arthur Buhler | 1982-03-09 |