145Admittedly, even if it is true that the acquisition by a mark of distinctive character through use must be proved for the part of the European Union in which that mark did not, ab initio, have such character, it would be unreasonable to require proof of such acquisition for each individual Member State (see judgment of 25 July 2018, Société des produits Nestlé and Others v Mondelez UK Holdings & Services, C‑84/17 P, C‑85/17 P and C‑95/17 P, EU:C:2018:596, paragraph 77 and the case-law cited).
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