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Priority to JP12967372UpriorityCriticalpatent/JPS523800Y2/ja
Priority to AU62439/73Aprioritypatent/AU485506B2/en
Publication of JPS4984848UpublicationCriticalpatent/JPS4984848U/ja
Application grantedgrantedCritical
Publication of JPS523800Y2publicationCriticalpatent/JPS523800Y2/ja