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Priority to JP2398974ApriorityCriticalpatent/JPS5417444B2/ja
Priority to US05/553,307prioritypatent/US3946985A/en
Priority to GB8210/75Aprioritypatent/GB1497088A/en
Publication of JPS50117022ApublicationCriticalpatent/JPS50117022A/ja
Publication of JPS5417444B2publicationCriticalpatent/JPS5417444B2/ja