1–6 von 6 Ergebnissen
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    Signal acquisition method and acquisition device of traffic signal lamp

    Freier Zugriff
    LI GUANCHENG | Europäisches Patentamt | 2020

    Turnover folding ladder for cross-country motor home

    Freier Zugriff
    LU XIAOLI / LI GUANCHENG / XIE XIAOJIE et al. | Europäisches Patentamt | 2020

    Geographic Information System-Based Truck Accident Information and Management System for New Jersey Roadways

    Chien, Steven / Li, Guancheng / Daniel, Janice | Transportation Research Record | 2002