Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822137 | Means for adjusting the focal length of a lens in relation to its displacement | Bernardus W. de Jong | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822137 | Means for adjusting the focal length of a lens in relation to its displacement | Bernardus W. de Jong | 1989-04-18 |