YN

Yongxing Ni

HC Hangzhou Zhongtai Industrial Group Co.: 1 patents #1 of 1Top 100%
Overall (2020): #211,421 of 565,922Top 40%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10631641 Spiral adjusting swivel chair tray for changing angle of torsion spring — 2020-04-28