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Priority to JP46071359ApriorityCriticalpatent/JPS5016970B2/ja
Priority to GB4896071Aprioritypatent/GB1375395A/en
Priority to DE19712153043prioritypatent/DE2153043A1/de
Publication of JPS4837212ApublicationCriticalpatent/JPS4837212A/ja
Priority to US420884Aprioritypatent/US3912831A/en
Publication of JPS5016970B2publicationCriticalpatent/JPS5016970B2/ja