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Priority to JP9837485UpriorityCriticalpatent/JPH0216311Y2/ja
Priority to US06/878,411prioritypatent/US4712926A/en
Publication of JPS627096UpublicationCriticalpatent/JPS627096U/ja
Application grantedgrantedCritical
Publication of JPH0216311Y2publicationCriticalpatent/JPH0216311Y2/ja
