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Priority to JP2927372ApriorityCriticalpatent/JPS5633716B2/ja
Priority to GB1393373Aprioritypatent/GB1375353A/en
Priority to DE19732315324prioritypatent/DE2315324A1/de
Priority to DE19737311598prioritypatent/DE7311598U/de
Publication of JPS4896118ApublicationCriticalpatent/JPS4896118A/ja
Publication of JPS5633716B2publicationCriticalpatent/JPS5633716B2/ja