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Priority to JP13248376UpriorityCriticalpatent/JPS5627589Y2/ja
Priority to US05/795,868prioritypatent/US4171066A/en
Priority to CA278,489Aprioritypatent/CA1084011A/en
Priority to AU25206/77Aprioritypatent/AU506920B2/en
Publication of JPS5349498UpublicationCriticalpatent/JPS5349498U/ja
Application grantedgrantedCritical
Publication of JPS5627589Y2publicationCriticalpatent/JPS5627589Y2/ja