NC

Naizhong Chen

📍 Shandong, CN: #981 of 2,138 inventorsTop 50%
Overall (All Time): #2,907,087 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10066418 Changeable combined mechanical key Yongzhi Zhang, Yuan Du, Xixiang Ding 2018-09-04