Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634383 | Process and apparatus for the production of fillings in teeth | Hans-Hermann Beyer, Walter Diehl, Kurt Eiermann, Hans-Martin Ringelstein | 1987-01-06 |
| 4610631 | Process for the production of fillings for teeth | Hans-Hermann Beyer, Walter Diehl, Kurt Eiermann, Hans-Martin Ringelstein | 1986-09-09 |