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Chengtun Chen

📍 Xinglin, CN: #1 of 2 inventorsTop 50%
Overall (All Time): #3,407,250 of 4,157,543Top 85%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D514306 Umbrella bag — 2006-02-07