QD

Qianshan Duan

Overall (All Time): #2,191,846 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D491202 Freezer Xiuchen Jiang, Jinping Hu 2004-06-08
D477337 Horizontal chest freezer with drawer Xiuchen Jiang, Bin Zhang, Yufeng Xu 2003-07-15