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Priority to JP16662078UpriorityCriticalpatent/JPS604266Y2/ja
Priority to US06/030,559prioritypatent/US4261023A/en
Publication of JPS5584730UpublicationCriticalpatent/JPS5584730U/ja
Application grantedgrantedCritical
Publication of JPS604266Y2publicationCriticalpatent/JPS604266Y2/ja