GENEVA, July 7 -- CHN ENERGY HUANGHUA PORT CO., LTD. (Office Building Of CHN ENERGY Huanghua PortShenhua Avenue, Bohai New AreaCangzhou, Hebei 061113), 国能黄骅港务有限责任公司 (中国河北省沧州市渤海新区神华大道国能黄骅港务公司办公楼) filed a patent application (PCT/CN2024/106874) for "METHOD AND APPARATUS FOR DETERMINING TIGHTNESS STATE OF LINE, DEVICE, AND STORAGE MEDIUM" on Jul 23, 2024. With publication no. WO/2025/138741, the details related to the patent application was published on Jul 03, 2025.

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