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Priority to JP8341276UpriorityCriticalpatent/JPS5613042Y2/ja
Priority to DE19772728617prioritypatent/DE2728617C2/de
Publication of JPS532430UpublicationCriticalpatent/JPS532430U/ja
Application grantedgrantedCritical
Publication of JPS5613042Y2publicationCriticalpatent/JPS5613042Y2/ja