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Priority to JP17348882UpriorityCriticalpatent/JPS5977735U/ja
Priority to DE19833332397prioritypatent/DE3332397A1/de
Priority to GB08330341Aprioritypatent/GB2130796B/en
Priority to CA000441273Aprioritypatent/CA1226888A/en
Priority to US06/552,503prioritypatent/US4579018A/en
Publication of JPS5977735UpublicationCriticalpatent/JPS5977735U/ja
Application grantedgrantedCritical
Publication of JPH0117062Y2publicationCriticalpatent/JPH0117062Y2/ja