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Priority to JP43073022ApriorityCriticalpatent/JPS4942775B1/ja
Priority to GB47966/69Aprioritypatent/GB1279834A/en
Priority to US864535Aprioritypatent/US3598741A/en
Priority to DE1950560Aprioritypatent/DE1950560C3/de
Publication of JPS4942775B1publicationCriticalpatent/JPS4942775B1/ja