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device for selbsttaetigen intervention of an optical or acoustic warnsignals vehicles and / or the vehicle braking by means of electrical energy, in order to avoid verkehrsunfaellen of roads and eisenbahnkreuzungen
device for selbsttaetigen intervention of an optical or acoustic warnsignals vehicles and / or the vehicle braking by means of electrical energy, in order to avoid verkehrsunfaellen of roads and eisenbahnkreuzungen
