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Priority to JP1978108225UpriorityCriticalpatent/JPS6213122Y2/ja
Priority to US06/038,174prioritypatent/US4294121A/en
Priority to EP79301031Aprioritypatent/EP0006022B1/en
Priority to DE7979301031Tprioritypatent/DE2965496D1/de
Publication of JPS5526737UpublicationCriticalpatent/JPS5526737U/ja
Application grantedgrantedCritical
Publication of JPS6213122Y2publicationCriticalpatent/JPS6213122Y2/ja