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Priority to JP1971106589UpriorityCriticalpatent/JPS5137666Y2/ja
Priority to DE19722248313prioritypatent/DE2248313A1/de
Publication of JPS4862178UpublicationCriticalpatent/JPS4862178U/ja
Application grantedgrantedCritical
Publication of JPS5137666Y2publicationCriticalpatent/JPS5137666Y2/ja