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 JP8913187UpriorityCriticalpatent/JPS63198039U/ja
Priority to US07/172,383prioritypatent/US4870444A/en
Publication of JPS63198039UpublicationCriticalpatent/JPS63198039U/ja
Priority to US07/379,339prioritypatent/US4959682A/en
