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Priority to JP1540874ApriorityCriticalpatent/JPS5738781B2/ja
Priority to US05/548,101prioritypatent/US4036192A/en
Publication of JPS50108421ApublicationCriticalpatent/JPS50108421A/ja
Publication of JPS5738781B2publicationCriticalpatent/JPS5738781B2/ja