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 JP47068929ApriorityCriticalpatent/JPS4926992A/ja
Priority to GB3256273Aprioritypatent/GB1432684A/en
Priority to NO2830/73Aprioritypatent/NO136012C/no
Publication of JPS4926992ApublicationCriticalpatent/JPS4926992A/ja