Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4522525 | Writing instrument having a needle slidably mounted in a tubular tip | Takahiko Shimizu, Takasi Tamura | 1985-06-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4522525 | Writing instrument having a needle slidably mounted in a tubular tip | Takahiko Shimizu, Takasi Tamura | 1985-06-11 |