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Zhuangdou Zhang

UNUnknown: 1 patents #373 of 3,359Top 15%
Shangqiu City, CN: #2 of 2 inventorsTop 100%
Overall (2017): #177,590 of 506,227Top 40%
1 Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9776887 Tannery process with effluent recycling — 2017-10-03

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