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Priority to JP4259573ApriorityCriticalpatent/JPS542853B2/ja
Priority to GB1615674Aprioritypatent/GB1471781A/en
Priority to FR7412720Aprioritypatent/FR2225218B1/fr
Priority to DE19742418276prioritypatent/DE2418276C3/de
Publication of JPS49130233ApublicationCriticalpatent/JPS49130233A/ja
Publication of JPS542853B2publicationCriticalpatent/JPS542853B2/ja