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 JP571871ApriorityCriticalpatent/JPS519737B1/ja
Priority to GB4896071Aprioritypatent/GB1375395A/en
Priority to DE19712153043prioritypatent/DE2153043A1/de
Priority to US420884Aprioritypatent/US3912831A/en
Publication of JPS519737B1publicationCriticalpatent/JPS519737B1/ja
