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Priority to JP49052487ApriorityCriticalpatent/JPS50145133A/ja
Priority to GB19692/75Aprioritypatent/GB1505680A/en
Priority to US05/576,021prioritypatent/US4032932A/en
Priority to DE2521026Aprioritypatent/DE2521026C3/de
Publication of JPS50145133ApublicationCriticalpatent/JPS50145133A/ja