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 JP8510872UpriorityCriticalpatent/JPS4942314U/ja
Priority to CA175,691Aprioritypatent/CA996359A/en
Publication of JPS4942314UpublicationCriticalpatent/JPS4942314U/ja