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Application filed by Fortschritt Veb KfiledCriticalFortschritt Veb K
Priority to IT47596/82ApriorityCriticalpatent/IT1147663B/it
Publication of IT8247596A0publicationCriticalpatent/IT8247596A0/it
Application grantedgrantedCritical
Publication of IT1147663BpublicationCriticalpatent/IT1147663B/it