Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D317619 | Electronic calculator with solar cell | Masaji Sawada | 1991-06-18 |
YY
Youko Yoshimura
Overall (All Time): #3,879,008 of 4,157,543Top 95%
1
Patents All Time