1–5 von 5 Ergebnissen
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    Derrick structure suitable for super single operation and installation method

    Freier Zugriff
    ZHU HAO / SUN GANG / ZHANG BIN et al. | Europäisches Patentamt | 2022

    Lifting derrick capable of being rapidly disassembled and assembled and installation method thereof

    Freier Zugriff
    AN JIE / PENG TAIFENG / ZHANG ZHENYONG et al. | Europäisches Patentamt | 2023

    Lifting type hay pulley device for steel wire operation

    Freier Zugriff
    ZHANG WEIGUO / JIN HAO / LI BO et al. | Europäisches Patentamt | 2020

    Underground coal mine trackless auxiliary transportation robot

    Freier Zugriff
    HAO MINGRUI / YUAN XIAOMING / ZHOU DEHUA et al. | Europäisches Patentamt | 2021

    Railway tunnel contact net rail groove mounting device and mounting method

    Freier Zugriff
    LI DONGSHUN / CHEN HAO / YU YUEXIN et al. | Europäisches Patentamt | 2021