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Priority to JP2072074ApriorityCriticalpatent/JPS5433213B2/ja
Priority to DE2507157Aprioritypatent/DE2507157C2/de
Priority to US05/551,157prioritypatent/US3982971A/en
Publication of JPS50115117ApublicationCriticalpatent/JPS50115117A/ja
Publication of JPS5433213B2publicationCriticalpatent/JPS5433213B2/ja