Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816576 | Sulphonic acid amidamines | Hans-Josef Buysch, Hermann Gruber | 1989-03-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816576 | Sulphonic acid amidamines | Hans-Josef Buysch, Hermann Gruber | 1989-03-28 |