Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796823 | Spool for photographic film | Mutsuo Akao, Toshio Sata, Masanori Ishiguro | 1989-01-10 |
HE
Hisao Endo
Overall (1989): #105,718 of 140,708Top 80%
1
Patents 1989