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Priority to JP1987164517UpriorityCriticalpatent/JPH0625400Y2/ja
Priority to US07/264,731prioritypatent/US4914596A/en
Publication of JPH0169039UpublicationCriticalpatent/JPH0169039U/ja
Application grantedgrantedCritical
Publication of JPH0625400Y2publicationCriticalpatent/JPH0625400Y2/ja
