Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863587 | Method for recovery of a phenolic polymerization inhibitor | Takashi Tonari | 1989-09-05 |
| 4843688 | Buckle having belt engaging friction means | — | 1989-07-04 |
| 4800629 | Plastic buckle | — | 1989-01-31 |