Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864026 | Method of manufacturing N-alkyl-N'-methyl-alkyleneureas, particularly N,N'- d | Hans Bellut | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864026 | Method of manufacturing N-alkyl-N'-methyl-alkyleneureas, particularly N,N'- d | Hans Bellut | 1989-09-05 |