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 JP4679773UpriorityCriticalpatent/JPS49148413U/ja
Priority to NL7405286Aprioritypatent/NL7405286A/xx
Priority to DE2418769Aprioritypatent/DE2418769C3/de
Priority to GB1690974Aprioritypatent/GB1472115A/en
Publication of JPS49148413UpublicationCriticalpatent/JPS49148413U/ja