Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9643820 | Device for preventing travel of an elevator with its doors open | Hideki Arai, Shunji Imai | 2017-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9643820 | Device for preventing travel of an elevator with its doors open | Hideki Arai, Shunji Imai | 2017-05-09 |