Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352241 | Process for retanning mineral tanned leathers with aromatic sulphonic acids | Franz Schade, Bernhard Wehling, Henricus Slaats | 1994-10-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352241 | Process for retanning mineral tanned leathers with aromatic sulphonic acids | Franz Schade, Bernhard Wehling, Henricus Slaats | 1994-10-04 |