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 JP4800076UpriorityCriticalpatent/JPS52140367U/ja
Priority to US05/752,648prioritypatent/US4173863A/en
Priority to DE19762658546prioritypatent/DE2658546C2/de
Priority to GB5412376Aprioritypatent/GB1572512A/en
Publication of JPS52140367UpublicationCriticalpatent/JPS52140367U/ja
Priority to US06/047,267prioritypatent/US4261048A/en