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.)
Priority date (The priority date 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 date listed.)
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Priority to JP50087914ApriorityCriticalpatent/JPS5211881A/ja
Publication of JPS5211881ApublicationCriticalpatent/JPS5211881A/ja
Priority to US05/908,661prioritypatent/US4168442A/en
Publication of JPS5422755B2publicationCriticalpatent/JPS5422755B2/ja
