1–10 von 10 Ergebnissen
|

    Media file playing control method and elevator equipment

    Freier Zugriff
    CHEN YUDONG | Europäisches Patentamt | 2023

      Media file playing control method and elevator equipment

      Freier Zugriff
      CHEN YUDONG | Europäisches Patentamt | 2023

    Elevator information providing system and information providing method

    Freier Zugriff
    CHEN YUDONG | Europäisches Patentamt | 2023

    Elevator service quality evaluation method

    Freier Zugriff
    CHEN YUDONG | Europäisches Patentamt | 2023

    Elevator broadcast voice customization system

    Freier Zugriff
    CHEN YUDONG / LU WENJIE | Europäisches Patentamt | 2023

    Elevator operation cost calculation method and notification system

    Freier Zugriff
    HE CHENG / CHEN YUDONG | Europäisches Patentamt | 2022

    Elevator passenger taking data processing system

    Freier Zugriff
    HE CHENG / CHEN YUDONG | Europäisches Patentamt | 2022

    Elevator complaint management method and system

    Freier Zugriff
    HE CHENG / CHEN YUDONG | Europäisches Patentamt | 2022

    Display module

    Freier Zugriff
    CAI WENRONG / CAI QINGYU / CAI HUIRONG et al. | Europäisches Patentamt | 2021