Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888489 | Hand-held device for curing a dental restorative material | — | 1989-12-19 |
| 4854875 | Extra-oral dental restoration | Michael M. Dziki | 1989-08-08 |
| 4850871 | Method for thermoset-thermoplastic molded article | — | 1989-07-25 |