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Priority to JP16798687UpriorityCriticalpatent/JPH0349332Y2/ja
Priority to EP88117862Aprioritypatent/EP0315041B1/en
Priority to AT88117862Tprioritypatent/ATE87086T1/de
Priority to DE8888117862Tprioritypatent/DE3879377T2/de
Priority to US07/265,701prioritypatent/US4916831A/en
Priority to KR1019880014409Aprioritypatent/KR930006065B1/ko
Publication of JPH0171276UpublicationCriticalpatent/JPH0171276U/ja
Application grantedgrantedCritical
Publication of JPH0349332Y2publicationCriticalpatent/JPH0349332Y2/ja