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classificationCode:"ipc:B63B"

    선상 수소 연료 제조 시스템 및 그 수소 제조 방법

    Freier Zugriff
    LI XIAOFENG / XU FENG / CHEN JUN et al. | Europäisches Patentamt | 2023

    Underwater sonar device based on inertial navigation

    Freier Zugriff
    ZHANG QI / WU SONG / LI KUN et al. | Europäisches Patentamt | 2023

    Communication buoy based on underwater topographic surveying and mapping

    Freier Zugriff
    LI CHUNYU / WU SONG / ZHANG QI et al. | Europäisches Patentamt | 2023