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Priority to JP18108986UpriorityCriticalpatent/JPH0629775Y2/ja
Priority to KR1019870010224Aprioritypatent/KR910007038B1/ko
Priority to US07/102,575prioritypatent/US4876441A/en
Publication of JPS6387607UpublicationCriticalpatent/JPS6387607U/ja
Application grantedgrantedCritical
Publication of JPH0629775Y2publicationCriticalpatent/JPH0629775Y2/ja
