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 JP4038172ApriorityCriticalpatent/JPS5515267B2/ja
Priority to GB979173Aprioritypatent/GB1428511A/en
Priority to BR287973Aprioritypatent/BR7302879D0/pt
Publication of JPS493972ApublicationCriticalpatent/JPS493972A/ja
Priority to US05/677,266prioritypatent/US4113918A/en
Publication of JPS5515267B2publicationCriticalpatent/JPS5515267B2/ja