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Priority to JP840869ApriorityCriticalpatent/JPS493880B1/ja
Priority to US8675Aprioritypatent/US3670957A/en
Priority to SE01460/70Aprioritypatent/SE358981B/xx
Priority to CH175770Aprioritypatent/CH508240A/de
Priority to FR7004330Aprioritypatent/FR2033307B1/fr
Priority to GB5886/70Aprioritypatent/GB1299744A/en
Priority to DE19702005524prioritypatent/DE2005524A1/de
Publication of JPS493880B1publicationCriticalpatent/JPS493880B1/ja