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Application filed by Federigo ErnstfiledCriticalFederigo Ernst
Priority to IT12478/83ApriorityCriticalpatent/IT1195471B/en
Publication of IT8312478A0publicationCriticalpatent/IT8312478A0/en
Application grantedgrantedCritical
Publication of IT1195471BpublicationCriticalpatent/IT1195471B/en