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Priority to JP10005179UpriorityCriticalpatent/JPS6133704Y2/ja
Priority to GB8022696Aprioritypatent/GB2058501B/en
Priority to DE19803027333prioritypatent/DE3027333C2/de
Publication of JPS5617715UpublicationCriticalpatent/JPS5617715U/ja
Application grantedgrantedCritical
Publication of JPS6133704Y2publicationCriticalpatent/JPS6133704Y2/ja