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Application filed by Ernst FederigofiledCriticalErnst Federigo
Priority to IT12416/79ApriorityCriticalpatent/IT1166051B/it
Publication of IT7912416A0publicationCriticalpatent/IT7912416A0/it
Application grantedgrantedCritical
Publication of IT1166051BpublicationCriticalpatent/IT1166051B/it