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Priority to JP3831774ApriorityCriticalpatent/JPS5525038B2/ja
Priority to US05/562,674prioritypatent/US3986692A/en
Priority to DE19752514496prioritypatent/DE2514496C3/de
Publication of JPS50131256ApublicationCriticalpatent/JPS50131256A/ja
Publication of JPS5525038B2publicationCriticalpatent/JPS5525038B2/ja