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Priority to JP1989060130UpriorityCriticalpatent/JP2565970Y2/ja
Priority to US07/526,821prioritypatent/US5079985A/en
Publication of JPH02149990UpublicationCriticalpatent/JPH02149990U/ja
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Publication of JP2565970Y2publicationCriticalpatent/JP2565970Y2/ja