SB

Sheng Biao

SC Shenzhen Grandsun Electronic Co.: 1 patents #12 of 30Top 40%
Overall (2019): #560,040 of 560,194Top 100%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D869434 Sport earphone Wu Haiquan, Zhou Shiyong, Yoshinari Okamoto, Peng Jiugao, Shi Ruiwen 2019-12-10