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Priority to JP1987200773UpriorityCriticalpatent/JPH0524463Y2/ja
Priority to DE3823275Aprioritypatent/DE3823275A1/de
Publication of JPH01106172UpublicationCriticalpatent/JPH01106172U/ja
Priority to US07/398,198prioritypatent/US4958423A/en
Application grantedgrantedCritical
Publication of JPH0524463Y2publicationCriticalpatent/JPH0524463Y2/ja