| 摘要 |
The invention relates to boards including devices for fixing two projecting boards fastened back to back on a bracket while allowing them to be removed individually. It includes reinforcements 1 proud of the surface of the boards in order to allow their fixing onto a support and having a right-angled part 5, the right-angles of two boards being integrated by screwing, their dimensions being defined by the thickness of the support 4 so that the boards are parallel. The boards according to the invention are particularly intended for a sign which has to present information which can be seen from both sides. <IMAGE>
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