Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867680 | Pre-loaded dental impression package and method of making | Pamela H. Hare, Robert V. Hare | 1989-09-19 |
| 4867682 | Dental impression tray | Steven R. Jefferies, Ronald L. Sitzema, Jr. | 1989-09-19 |