BD

Bingtong Du

📍 Shandong, CN: #981 of 2,138 inventorsTop 50%
Overall (All Time): #3,276,276 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7647717 Numerical display device Haikun Chen, Liqun Zhang, Yanjun Wu 2010-01-19