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Priority to JP10005079UpriorityCriticalpatent/JPS6133703Y2/ja
Priority to GB8022696Aprioritypatent/GB2058501B/en
Priority to DE19803027333prioritypatent/DE3027333C2/de
Publication of JPS5617714UpublicationCriticalpatent/JPS5617714U/ja
Application grantedgrantedCritical
Publication of JPS6133703Y2publicationCriticalpatent/JPS6133703Y2/ja