printed educational and instructional materials in the nature of a science curriculum, consisting of teachers' guides and ancillary kits of materials used in conducting instruction in science, such kits comprising chemicals, nuts, bolts and washers, paper cups, and other equipment and materials

'ancillari':18 'bolt':33 'chemic':31 'compris':30 'conduct':24 'consist':13 'cup':37 'curriculum':12 'educ':2 'equip':40 'guid':16 'instruct':4,25 'kit':19,29 'materi':5,21,42 'natur':8 'nut':32 'paper':36 'print':1 'scienc':11,27 'teacher':15 'use':22 'washer':35

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