17In that regard, the Court has already held that Articles 48 to 51 of the Treaty and the Community legislation adopted in implementation thereof, in particular Regulation No 1408/71, are intended to prevent a worker who, by exercising his right of free movement, has been employed in more than one Member State from being placed in a worse position than one who has completed his entire career in only one Member State (see Case 104/76 Jansen v Landesversicherungsanstalt Rheinprovinz[l977] ECR 829, paragraph 12, and Case 232/82 Bacciniv ONEM [1983] ECR 583, paragraph 17).
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