| 摘要 |
The envelope having a window (2) in the front wall (1) is constructed, to avoid bending or tearing of the window edges during automatic filling or automatic sorting, in particular by the German Post Office, in such a way that, starting from the rounded corners (3a) of the previous embodiment, the window is bounded along each side, facing away from the centre of the window, by edges (4) which are inclined in a roof-like manner or are rounded in a bulging manner (Figure 1). <IMAGE>
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