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Priority claimed from JP49022047Aexternal-prioritypatent/JPS50113671A/ja
Priority claimed from JP2204674Aexternal-prioritypatent/JPS5517655B2/ja
Priority claimed from JP8621174Aexternal-prioritypatent/JPS5114161A/ja
Application filed by Kobe Steel LtdfiledCriticalKobe Steel Ltd
Publication of NL7502195ApublicationCriticalpatent/NL7502195A/nl
Publication of NL156988BpublicationCriticalpatent/NL156988B/nl