Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213191 | Vertically movable staircase | Susumu Tahara, Satoshi Nakagawa | 1993-05-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213191 | Vertically movable staircase | Susumu Tahara, Satoshi Nakagawa | 1993-05-25 |