Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822375 | Dyeing compositions for keratinous fibres based on indole derivatives, and new compounds | Gerard Lang, Madeleine Leduc, Alex Junino | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822375 | Dyeing compositions for keratinous fibres based on indole derivatives, and new compounds | Gerard Lang, Madeleine Leduc, Alex Junino | 1989-04-18 |