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Priority to JP1984162054UpriorityCriticalpatent/JPH0449441Y2/ja
Priority to CN 85107812prioritypatent/CN85107812A/zh
Publication of JPS6179701UpublicationCriticalpatent/JPS6179701U/ja
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Publication of JPH0449441Y2publicationCriticalpatent/JPH0449441Y2/ja