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Priority to JP16573587UpriorityCriticalpatent/JPH0541085Y2/ja
Priority to US07/213,227prioritypatent/US4950031A/en
Priority to DE3822585Aprioritypatent/DE3822585A1/de
Publication of JPH0173060UpublicationCriticalpatent/JPH0173060U/ja
Application grantedgrantedCritical
Publication of JPH0541085Y2publicationCriticalpatent/JPH0541085Y2/ja