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 JP555172ApriorityCriticalpatent/JPS52444B2/ja
Priority to ZA730070Aprioritypatent/ZA7370B/xx
Priority to AU50815/73Aprioritypatent/AU473812B2/en
Publication of JPS4875406ApublicationCriticalpatent/JPS4875406A/ja
Publication of JPS52444B2publicationCriticalpatent/JPS52444B2/ja