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    A RAILROAD SIGNALING AND COMMUNICATION SYSTEM USING A FAIL-SAFE VOLTAGE SENSOR TO VERIFY TRACKSIDE CONDITIONS IN SAFETY-CRITICAL RAILROAD APPLICATIONS

    Freier Zugriff
    PRETORIUS FRANCOIS / HILL DAVID L / WISNIEWSKI CHARLES A et al. | Europäisches Patentamt | 2016

    RAILROAD SIGNALING AND COMMUNICATION SYSTEM USING A FAIL-SAFE VOLTAGE SENSOR TO VERIFY TRACKSIDE CONDITIONS IN SAFETY-CRITICAL RAILROAD APPLICATIONS

    Freier Zugriff
    PRETORIUS FRANCOIS / HILL DAVID L / WISNIEWSKI CHARLES A et al. | Europäisches Patentamt | 2016

      Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications

      Freier Zugriff
      PRETORIUS FRANCOIS / HILL DAVID L / WISNIEWSKI CHARLES A et al. | Europäisches Patentamt | 2016

      Railroad Signaling and Communication System Using a Fail-Safe Voltage Sensor to Verify Trackside Conditions in Safety-Critical Railroad Applications

      Freier Zugriff
      PRETORIUS FRANCOIS / HILL DAVID L / WISNIEWSKI CHARLES A et al. | Europäisches Patentamt | 2015