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Priority to JP1985099672UpriorityCriticalpatent/JPH0436395Y2/ja
Priority to US06/874,580prioritypatent/US4719955A/en
Publication of JPS627596UpublicationCriticalpatent/JPS627596U/ja
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Publication of JPH0436395Y2publicationCriticalpatent/JPH0436395Y2/ja