Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D901523 | Display screen of smart piano with transitional graphical user interface | Xiaolu Liu | 2020-11-10 |
| D900864 | Display screen of smart piano with transitional graphical user interface | Xiaolu Liu | 2020-11-03 |