| 摘要 |
The advertising display card comprises a visual information mobile carrier placed on the basis. The mobile information carrier is made as a disk with information and/or advertising marks applied onto it through regular intervals and placed between the basis and an external motionless element made in the form of the disk with cut in the form of the radial sector, the size being conformed to marking limits on the mobile disk fastened by means of a grummet. On the central part of the mobile disk there is an aperture where the external diameter of the mobile disk corresponding diameter exceeds motionless one and is equal to basis width which is made rectangular. |
