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Priority claimed from JP5949084Aexternal-prioritypatent/JPS60203350A/ja
Priority claimed from JP5948984Aexternal-prioritypatent/JPS60203349A/ja
Priority claimed from JP5949184Aexternal-prioritypatent/JPS60203351A/ja
Application filed by Sumitomo Metal IndfiledCriticalSumitomo Metal Ind
Priority claimed from EP85102362Aexternal-prioritypatent/EP0162205B1/de
Application grantedgrantedCritical
Publication of ATE34320T1publicationCriticalpatent/ATE34320T1/de