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Priority to JP44025544ApriorityCriticalpatent/JPS4949247B1/ja
Priority to DE19702015837prioritypatent/DE2015837C/de
Priority to GB1301591Dprioritypatent/GB1301591A/en
Priority to US25207Aprioritypatent/US3647948A/en
Priority to NL7004804Aprioritypatent/NL7004804A/xx
Publication of JPS4949247B1publicationCriticalpatent/JPS4949247B1/ja