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.)
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Priority to JP3905874ApriorityCriticalpatent/JPS523179B2/ja
Priority to US05/510,728prioritypatent/US3957138A/en
Priority to GB42942/74Aprioritypatent/GB1489192A/en
Priority to FR7433356Aprioritypatent/FR2246440B1/fr
Priority to DE19742447493prioritypatent/DE2447493C3/de
Publication of JPS50142975ApublicationCriticalpatent/JPS50142975A/ja
Publication of JPS523179B2publicationCriticalpatent/JPS523179B2/ja