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Priority to JP1308773ApriorityCriticalpatent/JPS49101877A/ja
Priority to GB44574Aprioritypatent/GB1459312A/en
Priority to NL7400231Aprioritypatent/NL7400231A/xx
Priority to FR7400550Aprioritypatent/FR2214165B1/fr
Priority to CH19874Aprioritypatent/CH564875A5/xx
Priority to DE19742401492prioritypatent/DE2401492A1/de
Publication of JPS49101877ApublicationCriticalpatent/JPS49101877A/ja