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    Unmanned helicopter for power application

    Free access
    DENG BAICHUAN / ZHOU JUNHONG / CHEN YONGHONG et al. | European Patent Office | 2021

      Unmanned helicopter for power application

      Free access
      DENG BAICHUAN / ZHOU JUNHONG / CHEN YONGHONG et al. | European Patent Office | 2021

      Unmanned helicopter for power application

      Free access
      DENG BAICHUAN / ZHOU JUNHONG / CHEN YONGHONG et al. | European Patent Office | 2021