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 JP4784576ApriorityCriticalpatent/JPS52131919A/ja
Priority to BE2056212Aprioritypatent/BE858353A/fr
Publication of JPS52131919ApublicationCriticalpatent/JPS52131919A/ja
Publication of JPS5624018B2publicationCriticalpatent/JPS5624018B2/ja
