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Priority to JP1990126582UpriorityCriticalpatent/JP2559327Y2/ja
Priority to US07/799,957prioritypatent/US5193876A/en
Publication of JPH0483913UpublicationCriticalpatent/JPH0483913U/ja
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Publication of JP2559327Y2publicationCriticalpatent/JP2559327Y2/ja
