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Priority to JP14847079UpriorityCriticalpatent/JPS6134745Y2/ja
Priority to US06/135,149prioritypatent/US4342000A/en
Publication of JPS5669112UpublicationCriticalpatent/JPS5669112U/ja
Application grantedgrantedCritical
Publication of JPS6134745Y2publicationCriticalpatent/JPS6134745Y2/ja