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Priority to JP11300772ApriorityCriticalpatent/JPS5039640B2/ja
Priority to US360420Aprioritypatent/US3873473A/en
Priority to DE2324487Aprioritypatent/DE2324487A1/de
Priority to NL7306777Aprioritypatent/NL7306777A/xx
Publication of JPS4975488ApublicationCriticalpatent/JPS4975488A/ja
Publication of JPS5039640B2publicationCriticalpatent/JPS5039640B2/ja