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Priority to JP1795588UpriorityCriticalpatent/JPH0547648Y2/ja
Priority to EP88309522Aprioritypatent/EP0312319A3/en
Priority to KR1019880013305Aprioritypatent/KR910004028B1/ko
Priority to US07/257,876prioritypatent/US4976554A/en
Publication of JPH01125638UpublicationCriticalpatent/JPH01125638U/ja
Application grantedgrantedCritical
Publication of JPH0547648Y2publicationCriticalpatent/JPH0547648Y2/ja