Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4449797 | Binocular ophthalmoscope | Michael Foerster | 1984-05-22 |
| 4403842 | Apparatus for testing twilight vision and blinding sensitivity | Elfriede Aulhorn, Josef Reiner | 1983-09-13 |