16 PRINTED EDUCATIONAL MATERIALS RELATING TO FIBER OPTICS, FIBER OPTIC MATERIALS, FIBER OPTIC EQUIPMENT AND TOOLS, FIBER OPTIC POLISHING TECHNIQUES; PRINTED MANUALS RELATING TO FIBER OPTICS, FIBER OPTIC MATERIALS, FIBER OPTIC EQUIPMENT AND TOOLS, FIBER OPTIC POLISHING TECHNIQUES; PRINTED INSTRUCTIONAL MATERIALS RELATING TO FIBER OPTICS, FIBER OPTIC MATERIALS, FIBER OPTIC EQUIPMENT AND TOOLS, FIBER OPTIC POLISHING TECHNIQUES; PRINTED PUBLICATIONS, NAMELY BOOKS, BOOKLETS AND MAGAZINES RELATING TO FIBER OPTICS, FIBER OPTIC MATERIALS, FIBER OPTIC EQUIPMENT AND TOOLS, FIBER OPTIC POLISHING TECHNIQUES