Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679144 | Powder composition for the preparation of an opaque dental porcelain in the form of a paste | Norbert Thiel | 1997-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679144 | Powder composition for the preparation of an opaque dental porcelain in the form of a paste | Norbert Thiel | 1997-10-21 |