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Priority to JP2106589UpriorityCriticalpatent/JPH0710041Y2/ja
Priority to US07/472,394prioritypatent/US5031591A/en
Publication of JPH02112940UpublicationCriticalpatent/JPH02112940U/ja
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Publication of JPH0710041Y2publicationCriticalpatent/JPH0710041Y2/ja