Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837650 | Head positioning device | — | 1989-06-06 |
JK
Junji Kawada
Overall (1989): #91,702 of 140,708Top 70%
1
Patents 1989