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Priority to JP1988099858UpriorityCriticalpatent/JPH0445854Y2/ja
Priority to US07/385,364prioritypatent/US5075051A/en
Publication of JPH0222811UpublicationCriticalpatent/JPH0222811U/ja
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Publication of JPH0445854Y2publicationCriticalpatent/JPH0445854Y2/ja