Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9784466 | Air supply damper for separately supplying leakage air flow and supplementary air flow, method for controlling the same, and smoke control system utilizing the same | Hyun-Joon Shin | 2017-10-10 |