YS

Yong Si

SC Shanghai Tobacco Group Co.: 1 patents #12 of 29Top 45%
Overall (All Time): #2,883,814 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
9936728 Method and device for forming cigarette filter rod Xu Wang, Ming-Chu Hou, Yigang Tong 2018-04-10