YZ

Yonghua Zheng

Overall (All Time): #2,544,318 of 4,157,543Top 65%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12138498 Multi-mode starting dry powder fire extinguishing ball Cuifang Chen, Yong Li, Bin Huang 2024-11-12