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Priority to JP1985088660UpriorityCriticalpatent/JPH0427270Y2/ja
Priority to US06/871,836prioritypatent/US4752963A/en
Publication of JPS61206398UpublicationCriticalpatent/JPS61206398U/ja
Application grantedgrantedCritical
Publication of JPH0427270Y2publicationCriticalpatent/JPH0427270Y2/ja
