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Priority to JP9944286UpriorityCriticalpatent/JPH0728359Y2/ja
Priority to US07/066,070prioritypatent/US4854617A/en
Priority to DE19873721023prioritypatent/DE3721023A1/de
Publication of JPS635166UpublicationCriticalpatent/JPS635166U/ja
Application grantedgrantedCritical
Publication of JPH0728359Y2publicationCriticalpatent/JPH0728359Y2/ja