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 JP49108971ApriorityCriticalpatent/JPS5135132A/ja
Priority to US05/611,960prioritypatent/US4044732A/en
Publication of JPS5135132ApublicationCriticalpatent/JPS5135132A/ja
Priority to US05/772,201prioritypatent/US4130267A/en
Publication of JPS5336885B2publicationCriticalpatent/JPS5336885B2/ja