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Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE513295ApublicationCriticalpatent/BE513295A/fr
Priority claimed from GB6068/56Aexternal-prioritypatent/GB771438A/en
Dispositif pour le pliage a grande vitesse de feuilles de papier et machine pour le pliage et le scellement de cartes-lettres comportant un tel dispositif de pliage