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Yunlan Yang

CP China National Petroleum: 1 patents #97 of 316Top 35%
📍 Langfang, CN: #44 of 102 inventorsTop 45%
Overall (All Time): #2,992,989 of 4,157,543Top 75%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9297196 Lift and rotation mechanism for quick door-opening device Feng Zou, Meng Li, Wenyong Li 2016-03-29