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Application filed by Coffral S AfiledCriticalCoffral S A
Priority to IT20431/82ApriorityCriticalpatent/IT1201939B/en
Publication of IT8220431A0publicationCriticalpatent/IT8220431A0/en
Application grantedgrantedCritical
Publication of IT1201939BpublicationCriticalpatent/IT1201939B/en