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Priority to JP49022797ApriorityCriticalpatent/JPS6012777B2/ja
Priority to US05/554,152prioritypatent/US3986896A/en
Priority to GB8370/75Aprioritypatent/GB1503017A/en
Publication of JPS50116276ApublicationCriticalpatent/JPS50116276A/ja
Publication of JPS6012777B2publicationCriticalpatent/JPS6012777B2/ja