Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661519 | Video camera fashioned as a handpiece for observing subjects in mouth of a patient | — | 1997-08-26 |
| 5598454 | X-ray diagnostics installation | Werner Guenther, Josef Ploetz | 1997-01-28 |