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Priority to JP18252678UpriorityCriticalpatent/JPS6133719Y2/ja
Priority to US06/101,279prioritypatent/US4297660A/en
Priority to GB7942608Aprioritypatent/GB2037524B/en
Priority to DE19792950429prioritypatent/DE2950429A1/de
Publication of JPS5598028UpublicationCriticalpatent/JPS5598028U/ja
Application grantedgrantedCritical
Publication of JPS6133719Y2publicationCriticalpatent/JPS6133719Y2/ja