Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D378764 | Ink refill for a ball-point pen | Hideyuki Tanaka | 1997-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D378764 | Ink refill for a ball-point pen | Hideyuki Tanaka | 1997-04-08 |