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Priority to JP6171274ApriorityCriticalpatent/JPS543361B2/ja
Priority to GB2327575Aprioritypatent/GB1504328A/en
Priority to DE19752523880prioritypatent/DE2523880C3/de
Publication of JPS50153920ApublicationCriticalpatent/JPS50153920A/ja
Priority to US05/823,236prioritypatent/US4122743A/en
Publication of JPS543361B2publicationCriticalpatent/JPS543361B2/ja