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 JP14409887UpriorityCriticalpatent/JPS6449911U/ja
Priority to US07/241,078prioritypatent/US4991957A/en
Publication of JPS6449911UpublicationCriticalpatent/JPS6449911U/ja
Priority to US07/442,320prioritypatent/US5096292A/en
