Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363744 | Mixtures of optical brighteners and their use for the optical brightening | Rudiger Erckel, Gunter Rosch, Heinz Probst | 1982-12-14 |
DG
Dieter Gunther
Overall (1982): #69,300 of 81,411Top 90%
1
Patents 1982