| 摘要 |
The invention relates to a cleaning system for window panes of difficult access. such as those encountered in tall buildings. The cleaning system according to the invention consists of a sprayer and/or sweeper (6) fitted on the outside of the windowpane (1) and capable of performing an up and down movement, and of motor means for driving the movable sprayer and/or sweeper, which motor means can be operated from the space on the inside of the window pane (1), and the spraying medium being supplied to the sprayer (6) from the space on the inside. The cleaning operation can thus be performed entirely from inside the building.
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