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Number: 434/410
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 bonding sheet to underlying surface with pressure-applying stylus (e.g., magic slate, etc.)
Description: Subject matter wherein the panel comprises a transparent or translucent sheet and an underlying surface, a mark being made by applying pressure against the top surface of the sheet with a pen-shaped instrument to thereby cause the sheet to stick to the underlying surface along the path traced by said instrument, the line of bonding being visible.










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