Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816875 | Slit illumination system for copying machine and the like | Kazuyuki Yoshida, Yamato Kitajima | 1989-03-28 |
| 4800414 | Magnification varying device for electro-photographic copying machine | — | 1989-01-24 |