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Priority to JP1987110931UpriorityCriticalpatent/JPH069554Y2/ja
Priority to KR1019880008986Aprioritypatent/KR910002991B1/ko
Priority to DE8888111629Tprioritypatent/DE3869004D1/de
Priority to EP88111629Aprioritypatent/EP0300436B1/en
Priority to US07/221,823prioritypatent/US4876473A/en
Publication of JPS6416149UpublicationCriticalpatent/JPS6416149U/ja
Application grantedgrantedCritical
Publication of JPH069554Y2publicationCriticalpatent/JPH069554Y2/ja