Means for demonstrating apparatus, product, or surface configuration, or for displaying education material or student's work > Means for comparing characteristics of plural articles or materials > Patents - Class: 434/367

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Class Information
Number: 434/367
Name: Education and demonstration > Means for demonstrating apparatus, product, or surface configuration, or for displaying education material or student's work > Means for comparing characteristics of plural articles or materials
Description: Subject matter wherein two or more similar articles or materials are displayed so that differences in quality or characteristics can be recognized.

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