Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820310 | Method of producing characters, symbols, patterns on thermoplastic resin molded article by reserve dyeing | — | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820310 | Method of producing characters, symbols, patterns on thermoplastic resin molded article by reserve dyeing | — | 1989-04-11 |