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Priority to JP1989066846UpriorityCriticalpatent/JPH035936U/ja
Priority to US07/500,433prioritypatent/US5046317A/en
Priority to DE69015449Tprioritypatent/DE69015449T2/de
Priority to ES90109942Tprioritypatent/ES2068944T3/es
Priority to EP90109942Aprioritypatent/EP0401615B1/en
Priority to KR1019900008467Aprioritypatent/KR960003677B1/ko
Publication of JPH035936UpublicationCriticalpatent/JPH035936U/ja