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person:(Xu, Feng)

    Medical caster

    Free access
    XU FENG | European Patent Office | 2015

    Automobile tire

    Free access
    XU FENG | European Patent Office | 2015

    Rolling gear type bicycle training device

    Free access
    XU FENG | European Patent Office | 2015

    Push-pull rod type bicycle training device

    Free access
    XU FENG | European Patent Office | 2015

    Pendulum rod type bicycle training device

    Free access
    XU FENG | European Patent Office | 2015

    Anti-skid and anti-explosion safety tire

    Free access
    XU FENG | European Patent Office | 2015

    Special intelligent unmanned aerial vehicle for agriculture and forestry

    Free access
    XU FENG | European Patent Office | 2015

    Antiskid run-flat tire

    Free access
    XU FENG | European Patent Office | 2015