Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4370058 | Digital focimeter and method | Horst Stacklies, Meinrad Machler | 1983-01-25 |
| 4266862 | Refractometer for the automatic objective determination of the refractive condition of an eye | Erwin Wiedmann | 1981-05-12 |