Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5606034 | Process for the preparation of azo dyes | Horst Langfeld, Karl Friedrich Haarburger | 1997-02-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5606034 | Process for the preparation of azo dyes | Horst Langfeld, Karl Friedrich Haarburger | 1997-02-25 |