Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364646 | Position adjusting device for ophthalmologic instrument | — | 1982-12-21 |
| 4353625 | Eye-refractometer device | Izumi Umemura | 1982-10-12 |
| 4322137 | Fundus observation and photographing optical system | — | 1982-03-30 |