New supporting construction system made up of several essentially parallel supports which are joined to each other in a transversal direction and at the same height by support elements provided with a substantially flat core characterized by the fact that a support is provided (1) with an opening (3) through which each one with a hook (8 8a) is secured two support elements (4 4a) located on both sides of the support, these hooks (8 8a) being directed in the opposite direction and retained in the edges facing each other of the opening while the shape of this (3) and of the indicated hooks (8 8a) is such that at least one of the latter can be removed from the fixing position of the corresponding element (4 4a) through the opening (3) of the support (1) by a parallel displacement of said element in the event that the remaining hook (8a 8) does not exist but none of such hooks (8 8a) can be removed by such a movement from the opening (3) if the remaining hook (8a 8) is attached to it. . (Machine-translation by Google Translate, not legally binding)
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