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Priority to JP5746970ApriorityCriticalpatent/JPS5117048B1/ja
Priority to GB2915771Aprioritypatent/GB1349665A/en
Priority to NL7108655Aprioritypatent/NL7108655A/xx
Priority to CA116445Aprioritypatent/CA927166A/en
Priority to DE19712131156prioritypatent/DE2131156C3/de
Priority to FR7122902Aprioritypatent/FR2099857A5/fr
Publication of JPS5117048B1publicationCriticalpatent/JPS5117048B1/ja