Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10358920 | Tunnel construction method using pre-support and post-support and apparatus suitable for same | Min-Kyu Seo | 2019-07-23 |
| 10271143 | Linear acoustic transducer | — | 2019-04-23 |