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Priority to JP6629990UpriorityCriticalpatent/JP2522698Y2/ja
Priority to KR1019900016594Aprioritypatent/KR910008930A/ko
Priority to EP90311426Aprioritypatent/EP0424139B1/en
Priority to DE69030481Tprioritypatent/DE69030481T2/de
Priority to US07/602,444prioritypatent/US5247220A/en
Publication of JPH0425489UpublicationCriticalpatent/JPH0425489U/ja
Priority to US08/363,557prioritypatent/US5521455A/en
Application grantedgrantedCritical
Publication of JP2522698Y2publicationCriticalpatent/JP2522698Y2/ja