Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840566 | Device for maintaining a boring tool in a vibratory dental instrument | — | 1989-06-20 |
| 4824370 | Dental drill | Jean M. Laurichesse | 1989-04-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840566 | Device for maintaining a boring tool in a vibratory dental instrument | — | 1989-06-20 |
| 4824370 | Dental drill | Jean M. Laurichesse | 1989-04-25 |