Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805999 | Variable magnification lens system with constant object-image distance | Toshihiko Ueda | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805999 | Variable magnification lens system with constant object-image distance | Toshihiko Ueda | 1989-02-21 |