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Priority to JP2579373ApriorityCriticalpatent/JPS5335330B2/ja
Priority to GB930874Aprioritypatent/GB1424937A/en
Priority to US05/447,740prioritypatent/US3939938A/en
Priority to DE2410489Aprioritypatent/DE2410489A1/de
Publication of JPS49112325ApublicationCriticalpatent/JPS49112325A/ja
Publication of JPS5335330B2publicationCriticalpatent/JPS5335330B2/ja