YS

Yan Sheng

SS Sun Race Sturmey-Archer: 1 patents #5 of 12Top 45%
📍 Xinwu District, TW: #4 of 5 inventorsTop 80%
Overall (All Time): #3,380,309 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7189173 Front derailleur for a bicycle Ming-Chih Tsai 2007-03-13