The rights guaranteed by Article 52 et seq. of the Treaty would be rendered meaningless if the Member State of origin could prohibit undertakings from leaving in order to establish themselves in another Member State. ###>En vue de répondre à cette question, il convient de rappeler, d'abord, ainsi que la Cour l'a constaté à maintes reprises, que l'article 52 du traité constitue l'une des dispositions fondamentales de la Communauté.