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(11) | EP 1 429 071 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Smooth light pipe |
| (57) SUMMARY OF SMOOTH LIGHT PIPE It is a light pipe used for decoration in squares, streets, shop windows, balconies and terraces. Its main feature is that because of its smooth external surface (1a) the smooth light pipe provides us with the best light and its easy cleaning in that there are no corrugations for dust. |