Namely, in the Contracting States which have "prescribe[d] that if the text, in which the European Patent Office intends to grant a European patent (...) is not drawn up in one of its official languages, the applicant for or proprietor of the patent shall supply to its central industrial property office a translation of this text in one of its official languages at his option or, where that State has prescribed the use of one specific official language, in that language".