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Priority to JP1989025408UpriorityCriticalpatent/JP2504839Y2/ja
Priority to US07/488,121prioritypatent/US4988328A/en
Priority to EP90104240Aprioritypatent/EP0386685B1/en
Publication of JPH02115788UpublicationCriticalpatent/JPH02115788U/ja
Application grantedgrantedCritical
Publication of JP2504839Y2publicationCriticalpatent/JP2504839Y2/ja
