| 主权项 |
1. A movable screen apparatus, the movable screen apparatus including a screen and a base configured for movement over a surface, wherein the movable screen apparatus includes a guidance arrangement and a drive arrangement, wherein further said guidance and drive arrangements are operable, in use, to move the screen apparatus along a pre-defined looped path, wherein the looped path is defined by a physical track which is contactable by the guidance arrangement. |
