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 JP11857276UpriorityCriticalpatent/JPS56691Y2/ja
Priority to US05/822,643prioritypatent/US4147963A/en
Priority to CA285,019Aprioritypatent/CA1086419A/en
Publication of JPS5337319UpublicationCriticalpatent/JPS5337319U/ja
Application grantedgrantedCritical
Publication of JPS56691Y2publicationCriticalpatent/JPS56691Y2/ja
