Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10536771 | Dynamic receiver with resonance protector for earphone | Yong Ju Ji | 2020-01-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10536771 | Dynamic receiver with resonance protector for earphone | Yong Ju Ji | 2020-01-14 |