Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822931 | Method for preparation of polybromoacenaphthene and/or its condensate | Fumio Okisaki, Masashige Kubo | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822931 | Method for preparation of polybromoacenaphthene and/or its condensate | Fumio Okisaki, Masashige Kubo | 1989-04-18 |