51So that the proprietor of an EU trade mark has that extended protection, it must be established, within the meaning of Article 9(1)(c) of that regulation that that mark has a ‘reputation in the [European Union]’. To that end, it is sufficient that it be established that the mark has such a reputation in a substantial part of the territory of the European Union, and that part may, in some circumstances, correspond to the territory of a single Member State. If that condition is satisfied, the EU trade mark at issue must be held to have a reputation in the whole of the European Union (judgments of 6 October 2009, PAGO International, C‑301/07, EU:C:2009:611, paragraphs 27, 29 and 30, and of 3 September 2015, Iron & Smith, C‑125/14, EU:C:2015:539, paragraphs 19 and 20).
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