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Priority to JP445172ApriorityCriticalpatent/JPS5039778B2/ja
Priority to AU50735/73Aprioritypatent/AU476995B2/en
Priority to DE2300731Aprioritypatent/DE2300731C3/de
Priority to US00321849Aprioritypatent/US3848840A/en
Publication of JPS4873648ApublicationCriticalpatent/JPS4873648A/ja
Publication of JPS5039778B2publicationCriticalpatent/JPS5039778B2/ja