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Priority to JP1971119407UpriorityCriticalpatent/JPS4873636U/ja
Priority to US00315653Aprioritypatent/US3820126A/en
Priority to GB5858172Aprioritypatent/GB1415703A/en
Priority to DE2262422Aprioritypatent/DE2262422B2/de
Publication of JPS4873636UpublicationCriticalpatent/JPS4873636U/ja