| 摘要 |
An information support with spatially arranged information on one side of a transparent front plate (1) and the same information (4<a>) or other information arranged in essentially coincident manner on the other side of the said front plate (1) or one one side of one or several plates (2, 3, 7, 8) arranged behind the front plate (1). In one embodiment with mobile plates (2, 3, 7, 8), these plates may be displaced in a first direction by means of two pivoting plates (28<b>) coupled in parallel. The said pivoting plates displace the support plates (2, 3, 7, 8) by acting directly on two of their opposing anterior faces or by means of separate transmission bodies (29, 34). |
