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 JP47275ApriorityCriticalpatent/JPS5173815A/ja
Priority to DE2558416Aprioritypatent/DE2558416C2/de
Priority to NLAANVRAGE7515012,Aprioritypatent/NL182359C/xx
Priority to US05/643,640prioritypatent/US4053838A/en
Publication of JPS5173815ApublicationCriticalpatent/JPS5173815A/ja
Publication of JPS5739570B2publicationCriticalpatent/JPS5739570B2/ja