| 摘要 |
Display device comprising a slideway 2 which can be fixed onto a vertical support 1, a trolley capable of sliding on or in the slideway between a high position and a low position, and means for immobilising the trolley with respect to the slideway and comprising a mechanism carried by the trolley and interacting with the suitably-shaped end of a pole, preferably guided by the slideway, and a removable and lockable panel 8. <IMAGE>
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