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 JP3328272ApriorityCriticalpatent/JPS48101388A/ja
Priority to GB1563873Aprioritypatent/GB1407906A/en
Priority to FR7311793Aprioritypatent/FR2179005B1/fr
Publication of JPS48101388ApublicationCriticalpatent/JPS48101388A/ja
Priority to US05/631,236prioritypatent/US4039484A/en
