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Priority to JP1990123617UpriorityCriticalpatent/JP2511694Y2/ja
Priority to US07/797,748prioritypatent/US5188572A/en
Priority to DE69119556Tprioritypatent/DE69119556T2/de
Priority to AT91120175Tprioritypatent/ATE138171T1/de
Priority to EP91120175Aprioritypatent/EP0488161B1/en
Publication of JPH0480948UpublicationCriticalpatent/JPH0480948U/ja
Application grantedgrantedCritical
Publication of JP2511694Y2publicationCriticalpatent/JP2511694Y2/ja