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.)
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Publication date
Application filedfiledCritical
Priority to JP1976098181UpriorityCriticalpatent/JPS591297Y2/ja
Priority to US05/751,361prioritypatent/US4275279A/en
Priority to CA268,051Aprioritypatent/CA1065375A/en
Publication of JPS5284676UpublicationCriticalpatent/JPS5284676U/ja
Application grantedgrantedCritical
Publication of JPS591297Y2publicationCriticalpatent/JPS591297Y2/ja
