Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827057 | Process for preparing 1,2-dichlorobenzene | Helmut Fiege, Herbert Schmidt, Karlfried Wedemeyer | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827057 | Process for preparing 1,2-dichlorobenzene | Helmut Fiege, Herbert Schmidt, Karlfried Wedemeyer | 1989-05-02 |