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Priority to JP5717472ApriorityCriticalpatent/JPS4916604A/ja
Priority to DE19732323388prioritypatent/DE2323388C3/de
Priority to IT2391073Aprioritypatent/IT990558B/it
Priority to NL7306530Aprioritypatent/NL7306530A/xx
Priority to GB2231773Aprioritypatent/GB1435198A/en
Publication of JPS4916604ApublicationCriticalpatent/JPS4916604A/ja