Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684624 | Lens change-over device with centerable reception rings | Karl Wieber | 1997-11-04 |
| 5684627 | Microscope with a multi-functional adjustment knob | Michael Ganser, Klaus Felgenhauer | 1997-11-04 |