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Application filed by Luigi FerrariofiledCriticalLuigi Ferrario
Priority to IT20745/88ApriorityCriticalpatent/IT1217726B/en
Publication of IT8820745A0publicationCriticalpatent/IT8820745A0/en
Application grantedgrantedCritical
Publication of IT1217726BpublicationCriticalpatent/IT1217726B/en