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Priority to JP1988125621UpriorityCriticalpatent/JPH0723641Y2/ja
Priority to DE89308383Tprioritypatent/DE68906496T2/de
Priority to EP89308383Aprioritypatent/EP0361669B1/en
Priority to US07/396,312prioritypatent/US5025680A/en
Publication of JPH0247452UpublicationCriticalpatent/JPH0247452U/ja
Application grantedgrantedCritical
Publication of JPH0723641Y2publicationCriticalpatent/JPH0723641Y2/ja