Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823642 | Air-fuel ratio controlling apparatus of an engine with an automatic change gear of electronic control type | Masato Iwaki, Kenji Ushijima, Hiroshi Kinoshita | 1989-04-25 |