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ZC Zhejiang Sanou Machinery Co.: 2 patents #3 of 8Top 40%
Overall (All Time): #1,925,876 of 4,157,543Top 50%
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Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10272499 Self-locking drill chuck Wenhua Zhou 2019-04-30
10166609 Self-locking drill chuck Wenhua Zhou, Xuebiao Tong 2019-01-01