Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314809 | Novel coupler components for oxidation hair dyes, the manufacture thereof, and hair colorants | Peter Busch, Edgar Lieske, Gunther Konrad | 1982-02-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314809 | Novel coupler components for oxidation hair dyes, the manufacture thereof, and hair colorants | Peter Busch, Edgar Lieske, Gunther Konrad | 1982-02-09 |