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Publication date
Application filedfiledCritical
Priority to JP1411489UpriorityCriticalpatent/JPH077074Y2/ja
Priority to US07/472,373prioritypatent/US5033921A/en
Priority to KR1019900001575Aprioritypatent/KR930007538B1/ko
Priority to DE69011887Tprioritypatent/DE69011887T2/de
Priority to EP90301423Aprioritypatent/EP0382571B1/en
Publication of JPH02107447UpublicationCriticalpatent/JPH02107447U/ja
Application grantedgrantedCritical
Publication of JPH077074Y2publicationCriticalpatent/JPH077074Y2/ja