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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 JP50104315ApriorityCriticalpatent/JPS5229054A/ja
Priority to US05/715,197prioritypatent/US4072212A/en
Priority to ES451036Aprioritypatent/ES451036A1/es
Publication of JPS5229054ApublicationCriticalpatent/JPS5229054A/ja
Publication of JPS5537470B2publicationCriticalpatent/JPS5537470B2/ja