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Priority to JP923572ApriorityCriticalpatent/JPS5315374B2/ja
Priority to DE2302982Aprioritypatent/DE2302982C3/de
Priority to US326106Aprioritypatent/US3870409A/en
Publication of JPS4879550ApublicationCriticalpatent/JPS4879550A/ja
Publication of JPS5315374B2publicationCriticalpatent/JPS5315374B2/ja