| 摘要 |
The invention concerns an information-carrying sheet (40) folded in cheque card format for displaying information and/or advertising on both sides. The covering sheets (43, 44) produced by folding are of the same size as cheque card faces, are in addition secured to the folded sheet (40) or form part of it; the multi-layer packet folded between the covering sheets has the same outer circumference as the covering sheets or is smaller on at least two sides; the outer sheets (43, 44) can be joined on their longer or shorter sides; and the information carrying sheet (40) between the covering sheets can take any form i.e. contour depending on the grid of longitudinal and transverse folds (41, 42). The covering sheets (43, 44) are extremely thin electronic devices. |
