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
Priority claimed from US378243Aexternal-prioritypatent/US2765441A/en
Application filedfiledCritical
Publication of JPS3110628B1publicationCriticalpatent/JPS3110628B1/ja
