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Priority claimed from JP9931479Uexternal-prioritypatent/JPS605411Y2/ja
Priority claimed from JP54092311Aexternal-prioritypatent/JPS60710B2/ja
Priority claimed from JP11260279Aexternal-prioritypatent/JPS5636772A/ja
Application filed by Sumitomo Electric IndustriesfiledCriticalSumitomo Electric Industries
Publication of IT8049282A0publicationCriticalpatent/IT8049282A0/it
Application grantedgrantedCritical
Publication of IT1145660BpublicationCriticalpatent/IT1145660B/it