YO

Yaocai Ou

Overall (All Time): #3,470,800 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6695333 Chainless transmission mechanism for bicycles Yongqiang Huang, Jinhong Zhang, Weihua Ruan, Shaofang Wu, Ronghua Xiao 2004-02-24