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Priority to JP7580588UpriorityCriticalpatent/JPH0517659Y2/ja
Priority to US07/359,168prioritypatent/US5198192A/en
Publication of JPH01179263UpublicationCriticalpatent/JPH01179263U/ja
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Publication of JPH0517659Y2publicationCriticalpatent/JPH0517659Y2/ja