Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846603 | Set-up/down plural-span weir assembly made of flexible sheets | Yoshiomi Tsuji, Kenji Mori, Souji Nishikawa | 1989-07-11 |
IM
Ichiro Maruyama
Overall (1989): #102,603 of 140,708Top 75%
1
Patents 1989