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Priority to JP44048887ApriorityCriticalpatent/JPS5025798B1/ja
Priority to US39381Aprioritypatent/US3670213A/en
Priority to GB2495770Aprioritypatent/GB1314565A/en
Priority to DE19702025511prioritypatent/DE2025511A1/de
Priority to NL7007499Aprioritypatent/NL7007499A/xx
Publication of JPS5025798B1publicationCriticalpatent/JPS5025798B1/ja
