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 JP727674ApriorityCriticalpatent/JPS5715371B2/ja
Priority to US05/540,347prioritypatent/US3990799A/en
Publication of JPS50103336ApublicationCriticalpatent/JPS50103336A/ja
Publication of JPS5715371B2publicationCriticalpatent/JPS5715371B2/ja
