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Priority to JP1989039011UpriorityCriticalpatent/JPH0710557Y2/ja
Priority to US07/488,831prioritypatent/US5119008A/en
Publication of JPH02129796UpublicationCriticalpatent/JPH02129796U/ja
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Publication of JPH0710557Y2publicationCriticalpatent/JPH0710557Y2/ja