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Priority to JP12275973ApriorityCriticalpatent/JPS5615141B2/ja
Priority to DE19742451861prioritypatent/DE2451861A1/de
Priority to CA212,875Aprioritypatent/CA1017875A/en
Publication of JPS5074980ApublicationCriticalpatent/JPS5074980A/ja
Publication of JPS5615141B2publicationCriticalpatent/JPS5615141B2/ja