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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Priority to JP7428072UpriorityCriticalpatent/JPS5016079Y2/ja
Publication of JPS4931999UpublicationCriticalpatent/JPS4931999U/ja
Application grantedgrantedCritical
Publication of JPS5016079Y2publicationCriticalpatent/JPS5016079Y2/ja
