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Priority to JP20022582UpriorityCriticalpatent/JPS5999763U/ja
Priority to US06/565,184prioritypatent/US4601594A/en
Publication of JPS5999763UpublicationCriticalpatent/JPS5999763U/ja
Application grantedgrantedCritical
Publication of JPH0114445Y2publicationCriticalpatent/JPH0114445Y2/ja