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Yongnong Yan

Overall (All Time): #2,006,357 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9339883 Soldering method — 2016-05-17
8075663 Anti-oxidative agent for molten metal, method of preparing and method of using thereof — 2011-12-13