Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360280 | Mechanical pencil having a lead detector | Junichi Hashimoto | 1982-11-23 |
| 4359290 | Writing instrument | Kazuma Noguchi | 1982-11-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4360280 | Mechanical pencil having a lead detector | Junichi Hashimoto | 1982-11-23 |
| 4359290 | Writing instrument | Kazuma Noguchi | 1982-11-16 |