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Priority to JP19308385UpriorityCriticalpatent/JPH0347507Y2/ja
Priority to US06/867,017prioritypatent/US4746077A/en
Priority to KR1019860004272Aprioritypatent/KR900005728B1/ko
Publication of JPS6299975UpublicationCriticalpatent/JPS6299975U/ja
Application grantedgrantedCritical
Publication of JPH0347507Y2publicationCriticalpatent/JPH0347507Y2/ja
