Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4461590 | Inertia pen | Antonio M. Alves dos Santos | 1984-07-24 |
| 4315695 | Inertia pen with slidable sleeve | Antonio M. Alves dos Santos | 1982-02-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4461590 | Inertia pen | Antonio M. Alves dos Santos | 1984-07-24 |
| 4315695 | Inertia pen with slidable sleeve | Antonio M. Alves dos Santos | 1982-02-16 |