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Priority to JP11943870ApriorityCriticalpatent/JPS493974B1/ja
Priority to NL7109413Aprioritypatent/NL7109413A/xx
Priority to DE19712133921prioritypatent/DE2133921B2/de
Priority to GB3187871Aprioritypatent/GB1315877A/en
Priority to FR7124902Aprioritypatent/FR2100376A5/fr
Publication of JPS493974B1publicationCriticalpatent/JPS493974B1/ja