Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617157 | Computer controlled subjective refractor | Tadmor Shalon, Susan L. Bragg, James D. Houseman, Steven Free | 1997-04-01 |
| 5592285 | Optical source position and direction sensor | — | 1997-01-07 |