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Priority to JP1989023267UpriorityCriticalpatent/JPH0538708Y2/ja
Priority to DE9002207Uprioritypatent/DE9002207U1/de
Priority to US07/485,622prioritypatent/US4989528A/en
Publication of JPH02116282UpublicationCriticalpatent/JPH02116282U/ja
Application grantedgrantedCritical
Publication of JPH0538708Y2publicationCriticalpatent/JPH0538708Y2/ja