XY

Xin Yuanfa

SC Shenzhen Grandsun Electronic Co.: 1 patents #19 of 36Top 55%
Overall (2020): #565,689 of 565,922Top 100%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D875709 Earphone Wu Haiquan, Yu Xin, Shi Ruiwen 2020-02-18