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Priority to ITRM970404priorityCriticalpatent/IT1293079B1/it
Publication of ITRM970404A0publicationCriticalpatent/ITRM970404A0/it
Priority to TW86111673Aprioritypatent/TW390852B/zh
Publication of ITRM970404A1publicationCriticalpatent/ITRM970404A1/it
Application grantedgrantedCritical
Publication of IT1293079B1publicationCriticalpatent/IT1293079B1/it