Plate for checking lotto cards - is transparent with grille marked on it and slides over cards on board

摘要

The device is for checking winning numbers on Lotto cards. It consists of a rigid or semi-rigid plate (3), made of transparent material, which slides over a board (1). The plate has a grid printed on it, with the winning squares marked over this. The edges of the plate (3a) are bent down and slide in grooves (1b) in the edge of the board. The game cards are put in a depression (1a) in the board and the plate is moved successively over them.