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Priority to JP17713776UpriorityCriticalpatent/JPS5393784U/ja
Priority to AU22672/77Aprioritypatent/AU507083B2/en
Priority to CA272,883Aprioritypatent/CA1052083A/en
Priority to US05/773,198prioritypatent/US4110898A/en
Priority to GB890777Aprioritypatent/GB1538409A/en
Publication of JPS5393784UpublicationCriticalpatent/JPS5393784U/ja