Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857592 | Polyvinyl chloride resin composition | Haruhiko Yusa, Katsumi Suzuki | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857592 | Polyvinyl chloride resin composition | Haruhiko Yusa, Katsumi Suzuki | 1989-08-15 |