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Priority to JP1988055845UpriorityCriticalpatent/JPH01161875U/ja
Priority to KR1019890004886Aprioritypatent/KR930007217B1/ko
Priority to GB8909470Aprioritypatent/GB2219563B/en
Priority to DE3913809Aprioritypatent/DE3913809C2/de
Priority to FR8905555Aprioritypatent/FR2630700B1/fr
Publication of JPH01161875UpublicationCriticalpatent/JPH01161875U/ja
Priority to US07/875,540prioritypatent/US5203421A/en