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 JP986874ApriorityCriticalpatent/JPS573228B2/ja
Priority to US05/542,251prioritypatent/US3933541A/en
Publication of JPS50105077ApublicationCriticalpatent/JPS50105077A/ja
Publication of JPS573228B2publicationCriticalpatent/JPS573228B2/ja
