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Priority to JP4555373ApriorityCriticalpatent/JPS5624929B2/ja
Priority to US05/461,425prioritypatent/US4037948A/en
Priority to DE2419012Aprioritypatent/DE2419012C3/de
Publication of JPS49131441ApublicationCriticalpatent/JPS49131441A/ja
Publication of JPS5624929B2publicationCriticalpatent/JPS5624929B2/ja