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 JP48002338ApriorityCriticalpatent/JPS4991548A/ja
Priority to US05/411,414prioritypatent/US3936816A/en
Priority to GB5062173Aprioritypatent/GB1413039A/en
Publication of JPS4991548ApublicationCriticalpatent/JPS4991548A/ja
