Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687923 | Gradual pressure applying type de-inking device for paper material | Takefumi Ide | 1997-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687923 | Gradual pressure applying type de-inking device for paper material | Takefumi Ide | 1997-11-18 |