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Inventor
CHEN SHIDA
CN
2 patents
Patents
2 patents
US11242736B2
Feb 8, 2022
Fracturing device for extraction of coalbed methane in low permeability reservoir
UNIV CHINA GEOSCIENCES BEIJING
0 citations
46
US11203925B2
Dec 21, 2021
Drilling device at extracting opening for extraction of coalbed methane
UNIV CHINA GEOSCIENCES BEIJING
0 citations
46