Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP12275172ApriorityCriticalpatent/JPS4979385A/ja
Priority to CA184,060Aprioritypatent/CA1019559A/en
Publication of JPS4979385ApublicationCriticalpatent/JPS4979385A/ja