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 JP11848375UpriorityCriticalpatent/JPS5253612U/ja
Publication of JPS5253612UpublicationCriticalpatent/JPS5253612U/ja
Priority to US05/875,617prioritypatent/US4184120A/en