发明名称 INFORMATION DISPLAY DEVICE
摘要 <p>A device for displaying information, the device comprising a transparent faced display board for fixture to a surface the board having carrier means (3) intermediate the transparent face (5) and the surface for carrying a rigid information element (4) and an aperture (15) for inserting the element into the carrier means. The aperture is provided with a baffle, (10), for example comprising resiliently biased elements, allowing entry of a rigid information element (4) but preventing entry of a flexible information element.</p>
申请公布号 WO1989010608(A1) 申请公布日期 1989.11.02
申请号 GB1989000436 申请日期 1989.04.25
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