16 Paper, namely absorbent pads of paper and cellulose for use in food packaging, adhesive note paper, aluminum foil laminated paper for printing purposes; art paper; blank or partially printed paper labels, and cardboard, printed teaching materials in the field of children's activity books, work books, practice books, textbooks, in the subjects of mathematics, reading comprehension, phonics, language, arts, history, geography, science, art, music, literature and foreign language, bookbinding, photographs, stationery, adhesives for stationery of household purposes, artists' materials, namely brushes, pastels, pencils, pens; paint brushes, typewriters, office requisites namely envelope sealing machines, paper folding machines, rubber bands and staplers, printed instructional and teaching materials for use in schools, private courses, workshops, written courses and in-company courses, plastic bags and bubble bags for packing, printers' type and printing blocks