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Application filed by Enrico Vignelli, Cesare CerrutifiledCriticalEnrico Vignelli
Priority to ITMI980121priorityCriticalpatent/IT1298191B1/en
Publication of ITMI980121A1publicationCriticalpatent/ITMI980121A1/en
Application grantedgrantedCritical
Publication of IT1298191B1publicationCriticalpatent/IT1298191B1/en