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Priority to JP13395675UpriorityCriticalpatent/JPS5424292Y2/ja
Priority to US05/704,445prioritypatent/US4037262A/en
Priority to CA257,003Aprioritypatent/CA1072675A/en
Priority to DE2632670Aprioritypatent/DE2632670C2/de
Publication of JPS5247265UpublicationCriticalpatent/JPS5247265U/ja
Application grantedgrantedCritical
Publication of JPS5424292Y2publicationCriticalpatent/JPS5424292Y2/ja