| 摘要 |
Advertising support formed of at least one body, each of said bodies consisting of an advertising sheet and an inner unfolding and retaining framework, where the advertising sheet is a single sheet joined at its ends to form an interior infold, having another interior infold done in the middle of the sheet, both infolds facing each other and acting as a support along their whole length for inner sheets, which have superimposed overlaps where magnetic means are disposed for the unfolding and retention of the advertising support, in such a way that on one of the overlaps there is a single magnetic means, whilst on the other of the overlaps there is an alignment of supplementary magnetic means, so that the selection of one or the other permits adjustment of the degree of convexity that we wish to give the advertising support when unfolded.
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