Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645610 | Substituted 2-alkylamino-4-amino-1-alkylbenzene compounds and oxidation hair dye compositions based on said compounds | Wolfgang Balzer, Anke Frank | 1997-07-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645610 | Substituted 2-alkylamino-4-amino-1-alkylbenzene compounds and oxidation hair dye compositions based on said compounds | Wolfgang Balzer, Anke Frank | 1997-07-08 |