Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637842 | Elevator safety device | Masashi Yonemoto | 1997-06-10 |
HI
Hiroyasu Itoh
Overall (1997): #142,066 of 185,788Top 80%
1
Patents 1997