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PRINTED MATTER, NAMELY, MANUALS AND TEXTBOOKS IN THE FIELD OF COMPUTER AIDED DESIGN SOFTWARE, COMPUTER AIDED MANUFACTURING SOFTWARE, TWO-DIMENSIONAL MODELING SOFTWARE, AND THREE-DIMENSIONAL MODELING SOFTWARE; PRINTED INSTRUCTIONAL TEACHING MATERIALS FOR USE WITH COMPUTER AIDED DESIGN SOFTWARE, COMPUTER AIDED MANUFACTURING SOFTWARE, TWO-DIMENSIONAL MODELING SOFTWARE, AND THREE-DIMENSIONAL MODELING SOFTWARE