16 Paper and cardboard, including paper and cardboard for the packaging of data carriers, magnetic cards, software, and compact discs, printed matter, including printed matter relating to data carriers, magnetic cards, software, and compact discs, unmounted photographs, typewriter accessories and office supplies, including typewriter ribbons, teaching and instructional materials, including teaching and instructional materials in the field of research on a global computer information network, plastic packaging materials, including plastic packaging materials relating to data carriers, magnetic cards, software, and compact discs, playing cards, uncoded plastic cards