Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726460 | Frame structure for a curved escalator | — | 1988-02-23 |
YO
Yoshimi Otomo
Overall (All Time): #3,947,077 of 4,157,543Top 95%
1
Patents All Time