Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810254 | Wet-fastness properties of sulphur dyestuffs dyeings on cellulose treated with poly-di-allyl-ammonium salt | Wolfgang Bauer, Karl-Heinz Keil, Gert Nagl, Joachim Steinbach, Klaus Sternberger | 1989-03-07 |