CG

Changping Ge

UM Underground Magnetics: 1 patents #6 of 9Top 70%
Overall (All Time): #2,746,603 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
11105194 Probe for excavation-free guidance instrument Chao Ren, Xiangxiang Jin 2021-08-31