Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324553 | Hair dyeing compositions containing at least one 2,4-diamino-alkylbenzene as coupler | Andree Bugaut | 1982-04-13 |
| 4323360 | Dyeing compositions for hair which contain 2,4-diamino-butoxybenzene and/or a salt thereof as the coupling agent | Andree Bugaut | 1982-04-06 |