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Priority to JP10298990UpriorityCriticalpatent/JPH087117Y2/ja
Priority to US07/723,470prioritypatent/US5199855A/en
Priority to KR1019910013302Aprioritypatent/KR920006644A/ko
Priority to DE4125640Aprioritypatent/DE4125640C2/de
Publication of JPH0462390UpublicationCriticalpatent/JPH0462390U/ja
Application grantedgrantedCritical
Publication of JPH087117Y2publicationCriticalpatent/JPH087117Y2/ja