Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795839 | Process for separating mixed monochlorotoluene isomers, a plant for carrying out the process, and the isomers separated in this manner | Guido Niederjaufner, Achille Pontoglio, Giuseppe Storti, Sergio Carra' | 1989-01-03 |