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Priority claimed from JP1982001040Uexternal-prioritypatent/JPS58105517U/ja
Priority claimed from JP57015425Aexternal-prioritypatent/JPS58131878A/ja
Application filed by Sumitomo Electric IndustriesfiledCriticalSumitomo Electric Industries
Priority claimed from EP19820111638external-prioritypatent/EP0083759B1/de
Application grantedgrantedCritical
Publication of ATE29176T1publicationCriticalpatent/ATE29176T1/de