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Priority to JP681672ApriorityCriticalpatent/JPS5245247B2/ja
Priority to GB98373Aprioritypatent/GB1382771A/en
Priority to DE2300910Aprioritypatent/DE2300910C3/de
Priority to FR7300851Aprioritypatent/FR2174525A5/fr
Priority to US322840Aprioritypatent/US3878778A/en
Publication of JPS4877720ApublicationCriticalpatent/JPS4877720A/ja
Priority to US05/736,045prioritypatent/USRE29745E/en
Publication of JPS5245247B2publicationCriticalpatent/JPS5245247B2/ja