Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4673265 | Procedure and device for automatic refractometric measurement of the degree of ametropia of a human eye | Jean C. Hache | 1987-06-16 |
| 4619505 | Refractometry process and device for measuring the degree of ametropia, and especially the degree of astigmatism, of the eye | Jean C. Hache | 1986-10-28 |