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Number: 434/424
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 > Hand-carried school slate > With cushion or noise muffler attached to slate frame
Description: Subject matter including a means for protecting an edging for the panel or a means for reducing the sound made by the edging when it strikes another object.










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