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Priority to JP5381072ApriorityCriticalpatent/JPS5227649B2/ja
Priority to GB2605573Aprioritypatent/GB1385142A/en
Priority to DE19732328056prioritypatent/DE2328056C3/de
Publication of JPS4915717ApublicationCriticalpatent/JPS4915717A/ja
Publication of JPS5227649B2publicationCriticalpatent/JPS5227649B2/ja