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Priority to JP1988145844UpriorityCriticalpatent/JPH079222Y2/ja
Publication of JPH0268333UpublicationCriticalpatent/JPH0268333U/ja
Priority to US07/863,366prioritypatent/US5272579A/en
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Publication of JPH079222Y2publicationCriticalpatent/JPH079222Y2/ja