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Priority to JP1985123057UpriorityCriticalpatent/JPH0447968Y2/ja
Priority to US06/893,141prioritypatent/US4722027A/en
Publication of JPS6232553UpublicationCriticalpatent/JPS6232553U/ja
Application grantedgrantedCritical
Publication of JPH0447968Y2publicationCriticalpatent/JPH0447968Y2/ja
