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Class Information
Number: 434/409
Name: Education and demonstration > Means for demonstrating apparatus, product, or surface configuration, or for displaying education material or student's work > Chalkboard or equivalent means having easily erasable surface > Mark formed by magnetic attraction between materials (e.g., particles in sheet made visible by movement of magnet over sheet, etc.)
Description: Subject matter wherein a mark is made on the panel by means involving attraction of one magnetic material to another.










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