Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862989 | Two and four-wheel drive transfer device | Kongoh Aoki | 1989-09-05 |
| 4858716 | Two wheel/four wheel drive change over apparatus for four-wheel drive vehicles | Kongo Aoki | 1989-08-22 |
| 4805472 | Rotary torque transmission apparatus for four-wheel drive vehicles | Kongoh Aoki | 1989-02-21 |