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Priority to JP4515575ApriorityCriticalpatent/JPS51120348A/ja
Priority to CA250,228Aprioritypatent/CA1035599A/en
Priority to US05/677,216prioritypatent/US4051745A/en
Priority to DE2616765Aprioritypatent/DE2616765C2/de
Publication of JPS51120348ApublicationCriticalpatent/JPS51120348A/ja
Publication of JPS5538542B2publicationCriticalpatent/JPS5538542B2/ja