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 JP6870277UpriorityCriticalpatent/JPS53165430U/ja
Priority to US05/908,854prioritypatent/US4205807A/en
Priority to DE19782822996prioritypatent/DE2822996C2/de
Publication of JPS53165430UpublicationCriticalpatent/JPS53165430U/ja