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Priority to JP14407876UpriorityCriticalpatent/JPS5361820U/ja
Priority to DE2705418Aprioritypatent/DE2705418C2/de
Priority to CA271,981Aprioritypatent/CA1055384A/en
Priority to US05/770,898prioritypatent/US4094342A/en
Publication of JPS5361820UpublicationCriticalpatent/JPS5361820U/ja