Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9536688 | Press button device and audio equipment having the press button device | — | 2017-01-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9536688 | Press button device and audio equipment having the press button device | — | 2017-01-03 |