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Application filed by Sperotto SpafiledCriticalSperotto Spa
Priority to IT29529/78ApriorityCriticalpatent/IT1100474B/it
Publication of IT7829529A0publicationCriticalpatent/IT7829529A0/it
Application grantedgrantedCritical
Publication of IT1100474BpublicationCriticalpatent/IT1100474B/it