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Priority to JP24673UpriorityCriticalpatent/JPS535130Y2/ja
Priority to JP2467373Uprioritypatent/JPS49126917U/ja
Publication of JPS49102909UpublicationCriticalpatent/JPS49102909U/ja
Application grantedgrantedCritical
Publication of JPS535130Y2publicationCriticalpatent/JPS535130Y2/ja