[ Computer software for use in all levels of education on the subject of mathematics, geometry, and mathematical visualization and instruction manuals therefor sold as a unit ]

'comput':1 'educ':9 'geometri':15 'instruct':20 'level':7 'manual':21 'mathemat':14,17 'softwar':2 'sold':23 'subject':12 'therefor':22 'unit':26 'use':4 'visual':18

Prints and publications, namely, books and manuals on the subject of mathematics, geometry, and mathematical visualization

'book':5 'geometri':13 'manual':7 'mathemat':12,15 'name':4 'print':1 'public':3 'subject':10 'visual':16

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