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Weihua Ruan

📍 Xuchang, CN: #1 of 1 inventorsTop 100%
Overall (2004): #90,009 of 270,089Top 35%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

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