Advertisement message disseminating method, involves spraying water on dry surface in order to produce temporary advertising message, which will get wiped off after evaporation of water

摘要

The method involves spraying water on a dry surface (7) in order to produce a temporary advertising message (80), which will get wiped off after evaporation of water. A device has nozzles mounted at the back of a vehicle (90), supplied with pressurized water and controlled by an automatic machine according to the movement of the vehicle, in order to reproduce a message stored by the machine. An independent claim is also included for a device for implementing a method for disseminating an advertisement message.