Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11440772 | Elevator pit ladder apparatus | — | 2022-09-13 |
HK
Hironobu Kamada
Overall (2022): #433,517 of 548,613Top 80%
1
Patents 2022