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WRITING BOARD, IN PARTICULAR LARGE WALLBOARD
WRITING BOARD, IN PARTICULAR LARGE WALLBOARD
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机译:写字板,特别是大黑板
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摘要
1. Writing boards, in particular large-surface blackboards, having a transparent glass plate (4 ; 4, 4'), one side (4a ; 4a, 4'a) of which is used as the writing surface and is roughened, and having a support made of sheet metal (1), preferably of sheet steel, to which the glass plate is secured by adhesion, characterized in that a coloured lacquer layer (2 ; 2, 2') is connected to the sheet metal (1), and in that an adhesive transparent resilient intermediate layer (3 ; 3, 3') is arranged between this lacquer layer (2 ; 2, 2') and the glass plate (4 ; 4, 4').
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