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 JP9519872UpriorityCriticalpatent/JPS521623Y2/ja
Priority to DE19722252096prioritypatent/DE2252096A1/de
Publication of JPS4954317UpublicationCriticalpatent/JPS4954317U/ja
Priority to US506692Aprioritypatent/US3921281A/en
Application grantedgrantedCritical
Publication of JPS521623Y2publicationCriticalpatent/JPS521623Y2/ja
