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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Application filedfiledCritical
Priority to JP8521975UpriorityCriticalpatent/JPS5443418Y2/ja
Publication of JPS52768UpublicationCriticalpatent/JPS52768U/ja
Application grantedgrantedCritical
Publication of JPS5443418Y2publicationCriticalpatent/JPS5443418Y2/ja
