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 JP7696372UpriorityCriticalpatent/JPS52842Y2/ja
Publication of JPS4931815UpublicationCriticalpatent/JPS4931815U/ja
Application grantedgrantedCritical
Publication of JPS52842Y2publicationCriticalpatent/JPS52842Y2/ja
