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 JP1200674ApriorityCriticalpatent/JPS572593B2/ja
Priority to US05/540,589prioritypatent/US3957154A/en
Priority to DE2503161Aprioritypatent/DE2503161C2/de
Publication of JPS50106777ApublicationCriticalpatent/JPS50106777A/ja
Publication of JPS572593B2publicationCriticalpatent/JPS572593B2/ja
