Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867906 | Mixtures of fluorescent whitening agents | Hans R. Meyer, Dieter Reinehr, Kurt Weber | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867906 | Mixtures of fluorescent whitening agents | Hans R. Meyer, Dieter Reinehr, Kurt Weber | 1989-09-19 |