Patents/Inventors

Chengyong Sun

ShenzhenCN5 patents

5 Patents

USD11118532026
Alarm Clock
0 cites
USD10978292025
Alarm Clock
0 cites
USD10964462025
Alarm Clock
0 cites
USD10237882024
LED Alarm Clock
Shenzhen Kstyle Electronics Technology Co., Ltd.
0 cites
USD09903262023
Music Alarm Clock
0 cites