Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623060 | Dye mixture containing at least four diazo dyes having the same color with a diaminopyridine coupling component | Gunther Lamm, Helmut Reichelt | 1997-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623060 | Dye mixture containing at least four diazo dyes having the same color with a diaminopyridine coupling component | Gunther Lamm, Helmut Reichelt | 1997-04-22 |