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Priority to JP12451286UpriorityCriticalpatent/JPH0414633Y2/ja
Priority to US07/057,804prioritypatent/US4913215A/en
Priority to KR2019870008947Uprioritypatent/KR930002622Y1/ko
Publication of JPS6330582UpublicationCriticalpatent/JPS6330582U/ja
Application grantedgrantedCritical
Publication of JPH0414633Y2publicationCriticalpatent/JPH0414633Y2/ja
