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Priority to JP9109085UpriorityCriticalpatent/JPH065620Y2/ja
Priority to DE19863615960prioritypatent/DE3615960A1/de
Priority to US06/862,718prioritypatent/US4712419A/en
Publication of JPS61206864UpublicationCriticalpatent/JPS61206864U/ja
Application grantedgrantedCritical
Publication of JPH065620Y2publicationCriticalpatent/JPH065620Y2/ja
