Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822138 | Lens tube unit and method for producing the same | — | 1989-04-18 |
HT
Hironori Takase
Overall (1989): #103,975 of 140,708Top 75%
1
Patents 1989