Improvements in automatic announcing screens with change of consecutive ads (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in automatic advertising screens with consecutive ad change characterized by a rectangular box in which recesses have been made in the sides next to the upper base to accommodate the mechanism of action and other notches in the sides next to its base to properly house the mechanism for fixing the movable elements that make up the apparatus. (Machine-translation by Google Translate, not legally binding)