Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4516944 | Expansion type life-saving raft | Saito Hirobumi, Ito Kiyoshi, Higuchi Kaichi | 1985-05-14 |
YM
Yamamoto Masao
Overall (All Time): #4,014,952 of 4,157,543Top 100%
1
Patents All Time