Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821606 | Plastic sheet having creasing lines and creasing-line-forming blade for plastic sheet | — | 2004-11-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821606 | Plastic sheet having creasing lines and creasing-line-forming blade for plastic sheet | — | 2004-11-23 |