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Priority to JP5559174ApriorityCriticalpatent/JPS5426168B2/ja
Priority to US05/579,060prioritypatent/US4019192A/en
Publication of JPS50147926ApublicationCriticalpatent/JPS50147926A/ja
Publication of JPS5426168B2publicationCriticalpatent/JPS5426168B2/ja