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Priority to JP12928078UpriorityCriticalpatent/JPS5934910Y2/ja
Priority to DE19792937481prioritypatent/DE2937481A1/de
Priority to US06/076,955prioritypatent/US4277003A/en
Publication of JPS5547070UpublicationCriticalpatent/JPS5547070U/ja
Application grantedgrantedCritical
Publication of JPS5934910Y2publicationCriticalpatent/JPS5934910Y2/ja