Device for the visual qualification of perforable exam cards (Machine-translation by Google Translate, not legally binding)

摘要

Device for the visual qualification of perforable examination films, characterized in that it is essentially constituted by a preferably metallic box of rectangular base and whose cover is hinged by a set of hinges with the rest of the box, presenting a marked convergence in relation to the base, having foreseen in said lid a square that serves as a guide for the placement of the card when facing it with a plurality of drills of which the aforementioned cover is also provided. (Machine-translation by Google Translate, not legally binding)