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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Publication date
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Priority to JP4988474ApriorityCriticalpatent/JPS5317511B2/ja
Priority to US05/571,540prioritypatent/US4000465A/en
Priority to DE2519302Aprioritypatent/DE2519302C3/de
Publication of JPS50142271ApublicationCriticalpatent/JPS50142271A/ja
Publication of JPS5317511B2publicationCriticalpatent/JPS5317511B2/ja
