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 JP49018501ApriorityCriticalpatent/JPS50112716A/ja
Priority to US05/516,197prioritypatent/US4008422A/en
Publication of JPS50112716ApublicationCriticalpatent/JPS50112716A/ja
