Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H618 | Interpupillary distance measuring device | — | 1989-04-04 |
| H574 | Subject operated pupilometer | David P. Ramer | 1989-02-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| H618 | Interpupillary distance measuring device | — | 1989-04-04 |
| H574 | Subject operated pupilometer | David P. Ramer | 1989-02-07 |