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Priority to JP9374786UpriorityCriticalpatent/JPH0510456Y2/ja
Priority to KR1019870006170Aprioritypatent/KR930005183B1/ko
Priority to DE87108804Tprioritypatent/DE3787126T2/de
Priority to US07/063,949prioritypatent/US4845563A/en
Priority to EP87108804Aprioritypatent/EP0249987B1/en
Publication of JPS6312976UpublicationCriticalpatent/JPS6312976U/ja
Application grantedgrantedCritical
Publication of JPH0510456Y2publicationCriticalpatent/JPH0510456Y2/ja