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 JP74118ApriorityCriticalpatent/JPS5439834B2/ja
Publication of JPS50121184ApublicationCriticalpatent/JPS50121184A/ja
Priority to US05/646,921prioritypatent/US4059613A/en
Publication of JPS5439834B2publicationCriticalpatent/JPS5439834B2/ja