Deen Li

📍 Shandong, CN: #981 of 2,138 inventorsTop 50%

Overall (All Time): #2,833,558 of 4,157,543Top 70%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10871254	Water-soluble pipe-plugging device and pipe plugging method thereof	—	2020-12-22