16 Printed matter, in particular in the fields of computer technology and computer programs, namely operating and user instructions, forms, work instructions, program documentations, written accompanying material for computer programs; non-coded telephone cards; books, including manuals; magazines, brochures, catalogues, stationery, calendars, notebooks, cards, posters, placards, adhesives, greetings cards, gift wrap paper, writing paper and envelopes, scratch cards; paper napkins, paper pennants and flags; paper handkerchiefs; and chalk boards, included in this class; albums; paperweights; instructional and teaching material (except apparatus), in particular work books, training manuals and seminar files; paper, cardboard and goods made of these materials, included in this class; office requisites (except furniture)