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Priority to JP15155688UpriorityCriticalpatent/JPH0716440Y2/ja
Priority to US07/413,678prioritypatent/US5212472A/en
Publication of JPH023841UpublicationCriticalpatent/JPH023841U/ja
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Publication of JPH0716440Y2publicationCriticalpatent/JPH0716440Y2/ja