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Priority to JP12451086UpriorityCriticalpatent/JPH0547252Y2/ja
Priority to US07/079,695prioritypatent/US4850417A/en
Priority to KR2019870013481Uprioritypatent/KR930002623Y1/ko
Publication of JPS6330571UpublicationCriticalpatent/JPS6330571U/ja
Application grantedgrantedCritical
Publication of JPH0547252Y2publicationCriticalpatent/JPH0547252Y2/ja
