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Priority to JP494473ApriorityCriticalpatent/JPS523661B2/ja
Priority to GB4400973Aprioritypatent/GB1391863A/en
Priority to DE19732347680prioritypatent/DE2347680C3/de
Priority to FR7334119Aprioritypatent/FR2200302B1/fr
Publication of JPS4998437ApublicationCriticalpatent/JPS4998437A/ja
Publication of JPS523661B2publicationCriticalpatent/JPS523661B2/ja