Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5061411 | Method for making dental root canal filling points | Hisao Iizuka | 1991-10-29 |
| 5028228 | Apparatus for making dental root canal filling points | Hisao Iizuka | 1991-07-02 |