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Priority to JP1165972ApriorityCriticalpatent/JPS5650480B2/ja
Priority to CA159,824Aprioritypatent/CA1036224A/en
Priority to AU50415/72Aprioritypatent/AU456517B2/en
Publication of JPS4881403ApublicationCriticalpatent/JPS4881403A/ja
Priority to US05/597,331prioritypatent/US4013841A/en
Publication of JPS5650480B2publicationCriticalpatent/JPS5650480B2/ja