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Biyong Qui

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #2,829,863 of 4,157,543Top 70%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10851899 Reversing valve and household water purifier including same technical field 2020-12-01