| 摘要 |
The invention concerns any sheet of standard format for presenting information, comprising at least two preformed folds A and B on the face P1 and/or P2 of the sheet, mutually perpendicular and parallel, each, at two opposite edges of the sheet, thus delimiting the sheet in four parts (1, 2, 3, 4) and one fold of which is slotted or simply precut with one of the edges of the sheet at the point of intersection with the other fold or the centre of the sheet.
|
