| 摘要 |
In order to facilitate the maintenance of windows with fixed framing, i.e. windows which are not meant to be opened for purposes of ventilation and the like, it is proposed that the actual window pane (1) together with its framing (6) is equipped with interacting elements (2) which permit the window pane (1) to be turned or tilted, thus enabling its outside to be cleaned and/or otherwise maintained from the inside of the building, e.g. when replacing seals for the frame. A secondary effect of the invention is that the window pane, which may be of a double or multilayer type with selective reflection and transmission properties, will be able to be turned with the seasons.
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