| 摘要 |
The invention relates to a device in a supporting board or baseboard (1), especially for the support of sheets of paper (2) or similar, which distinguishes itself by comprising an additional means (6, 7, 12) which is constituted by a replaceable unit, preferably a top piece (7), or one in relation to the board turnable unit (6). The additional means (12) can be constituted by one or several pocket-shaped units, for example in sets of the same or of different size. |
