| 摘要 |
<p>The sheet incorporates several crossed folds forming various portions, so that it may adopt either a folded or unfolded configuration; in the folded configuration, two of the said portions (6) immediately to a first side, which is, in general, smaller, function as articulated covers, linked by a spine (40), which contains the rest of the said sheet in the form of a small book, including the means of assisting in opening/folding the sheet that consist of gripping elements formed by prolongations (8, 9) of two (6, 10) of the said portions, that prolongations of which protrude respectively in opposite directions of sides, which are, in general, larger than the sheet in the unfolded configuration, while in the folded configuration in the form of a small book, the prolongations (8, 9) are mutually superimposed, with indications (12) inside on how to open it. <IMAGE></p> |
