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Transmitting/receiving parts for acoustic, image-like signals, which parts are constructed to form, for motorised vehicles, an installation for emergencies, for ordering road users to do something, for making them aware of dangers and for warning them
Transmitting/receiving parts for acoustic, image-like signals, which parts are constructed to form, for motorised vehicles, an installation for emergencies, for ordering road users to do something, for making them aware of dangers and for warning them
The same received signals are made acoustically audible and visible by means of visible signs on display panels or on a display "e.g. of a radio" by figures, letters, numbers.
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