Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807931 | Air-controlled lumbar support device | Keiichi Ishida | 1989-02-28 |
KH
Kuniyoshi Harada
Overall (1989): #85,627 of 140,708Top 65%
1
Patents 1989