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Priority to JP1989097087UpriorityCriticalpatent/JPH0722936Y2/ja
Priority to DE69030537Tprioritypatent/DE69030537T2/de
Priority to EP90113877Aprioritypatent/EP0409246B1/en
Priority to KR1019900011059Aprioritypatent/KR0138759B1/ko
Publication of JPH0336284UpublicationCriticalpatent/JPH0336284U/ja
Priority to US07/885,693prioritypatent/US5473339A/en
Application grantedgrantedCritical
Publication of JPH0722936Y2publicationCriticalpatent/JPH0722936Y2/ja