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Cheng-Yung Chen

Overall (All Time): #3,382,528 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7201273 Air packing bag having film-type check valves Tai-Hua Chen 2007-04-10