Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4639004 | Hand cart with fulcrum lever and vertically adjustable auxiliary wheels | Kazuya Maeda | 1987-01-27 |
YI
Yasusuke Ishihara
Overall (All Time): #3,967,169 of 4,157,543Top 100%
1
Patents All Time