XL

Xuejiang Li

Overall (All Time): #2,553,553 of 4,157,543Top 65%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12168912 Downhole hydraulic directional control valve used by hydraulic power pumps and working method thereof Bing Guan, Baozhong Ma, Sifeng Bi, Meng Liu, Chao Gao +1 more 2024-12-17